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如何使用Swing实现自动补全?(如何使用swing实现自动补全字符)

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对于想了解如何使用Swing实现自动补全?的读者,本文将提供新的信息,我们将详细介绍如何使用swing实现自动补全字符,并且为您提供关于ajax实现自动补全、Bootstrap3使用typeahead

对于想了解如何使用Swing实现自动补全?的读者,本文将提供新的信息,我们将详细介绍如何使用swing实现自动补全字符,并且为您提供关于ajax实现自动补全、Bootstrap3使用typeahead插件实现自动补全功能、Docker 命令自动补全?要的、Dwr实现自动补全功能的有价值信息。

本文目录一览:

如何使用Swing实现自动补全?(如何使用swing实现自动补全字符)

如何使用Swing实现自动补全?(如何使用swing实现自动补全字符)

我有兴趣在JFrame中提供自动补全框。触发机制将基于助记符(我认为),但是我不太确定“自动补全框”应使用什么(我希望在用户按下键时对结果进行过滤)。

您将如何实施?某种JFrame还是JPopupMenu?

我想知道这是如何实现的,所以请不要发布指向可用的[J] Components的链接。

答案1

小编典典

Sun的教程“使用Swing组件”中提供了
一个自动完成文本区域
的示例

它以文字处理程序的样式完成(没有弹出窗口,但是
建议的文本在光标之前输入)。

只需向下滚动到 “另一个示例:TextAreaDemo”,然后按“
启动”按钮即可!

ajax实现自动补全

ajax实现自动补全

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <title>Ajax Auto Complete</title> <style type="text/css"> .mouSEOut { background: #708090; color: #FFFAFA; } .mouSEOver { background: #FFFAFA; color: #000000; } </style> <script type="text/javascript"> var xmlHttp; var completeDiv; var inputField; var naMetable; var naMetableBody; function createXMLHttpRequest() { if (window.ActiveXObject) { xmlHttp = new ActiveXObject("Microsoft.XMLHTTP"); } else if (window.XMLHttpRequest) { xmlHttp = new XMLHttpRequest(); } } function initvars() { inputField = document.getElementById("names"); naMetable = document.getElementById("name_table"); completeDiv = document.getElementById("popup"); naMetableBody = document.getElementById("name_table_body"); } function findNames() { initvars(); var mails = ["@163.com","@sina.com","@gmail.com"]; if (inputField.value.length > 0) { clearNames(); var size = mails.length; setoffsets(); var row,cell,txtNode; var dizhi = inputField.value; for (var i = 0; i < size; i++) { var nextNode = dizhi + mails[i]; row = document.createElement("tr"); cell = document.createElement("td"); cell.onmouSEOut = function() {this.className='mouSEOver';}; cell.onmouSEOver = function() {this.className='mouSEOut';}; cell.setAttribute("bgcolor","#FFFAFA"); cell.setAttribute("border","0"); cell.onclick = function() { populateName(this); } ; txtNode = document.createTextNode(nextNode); cell.appendChild(txtNode); row.appendChild(cell); naMetableBody.appendChild(row); } return; } if (inputField.value.length > 0) { createXMLHttpRequest(); var url = "AutoCompleteServlet?names=" + escape(inputField.value); xmlHttp.open("GET",url,true); xmlHttp.onreadystatechange = callback; xmlHttp.send(null); } else { clearNames(); } } function callback() { if (xmlHttp.readyState == 4) { if (xmlHttp.status == 200) { var name = xmlHttp.responseXML .getElementsByTagName("name")[0].firstChild.data; setNames(xmlHttp.responseXML.getElementsByTagName("name")); } else if (xmlHttp.status == 204){ clearNames(); } } } function setNames(the_names) { clearNames(); var size = the_names.length; setoffsets(); var row,txtNode; for (var i = 0; i < size; i++) { var nextNode = the_names[i].firstChild.data; row = document.createElement("tr"); cell = document.createElement("td"); cell.onmouSEOut = function() {this.className='mouSEOver';}; cell.onmouSEOver = function() {this.className='mouSEOut';}; cell.setAttribute("bgcolor","0"); cell.onclick = function() { populateName(this); } ; txtNode = document.createTextNode(nextNode); cell.appendChild(txtNode); row.appendChild(cell); naMetableBody.appendChild(row); } } function setoffsets() { var end = inputField.offsetWidth; var left = calculateOffsetLeft(inputField); var top = calculateOffsetTop(inputField) + inputField.offsetHeight; completeDiv.style.border = "black 1px solid"; completeDiv.style.left = left + "px"; completeDiv.style.top = top + "px"; naMetable.style.width = end + "px"; } function calculateOffsetLeft(field) { return calculateOffset(field,"offsetLeft"); } function calculateOffsetTop(field) { return calculateOffset(field,"offsetTop"); } function calculateOffset(field,attr) { var offset = 0; while(field) { offset += field[attr]; field = field.offsetParent; } return offset; } function populateName(cell) { inputField.value = cell.firstChild.nodeValue; clearNames(); } function clearNames() { var ind = naMetableBody.childNodes.length; for (var i = ind - 1; i >= 0 ; i--) { naMetableBody.removeChild(naMetableBody.childNodes[i]); } completeDiv.style.border = "none"; } function clearDiv(){ completeDiv.style.display="none"; } </script> </head> <body> <h1>showAllEmailFixes.html</h1> Names: <input type="text" size="20" id="names" onkeyup="findNames();"/> <divid="popup"> <table id="name_table" bgcolor="#FFFAFA" border="0" cellspacing="0" cellpadding="0" /> <tbody id="name_table_body"></tbody> </table> </div> </body> </html>

Bootstrap3使用typeahead插件实现自动补全功能

Bootstrap3使用typeahead插件实现自动补全功能

很酷的一个自动补全插件

在bootstrap中使用typeahead插件,完成自动补全

相关的文档:

数据源:

Local:数组

prefectch:json

remote等方式

--------------------------------------------------------------------------------

html:

rush:js;">

js:

rush:js;"> var states = new Bloodhound({ datumTokenizer: Bloodhound.tokenizers.whitespace,queryTokenizer: Bloodhound.tokenizers.whitespace,// `states` is an array of state names defined in "The Basics" local: states }); var findOrderByIdVague = new Bloodhound({ datumTokenizer: Bloodhound.tokenizers.obj.whitespace('value'),prefetch: '${ctx}/admin/order/preOrderByIdVague.json',remote: { url: '${ctx}/admin/order/findOrderByIdVague/%QUERY.json',wildcard: '%QUERY' },afterSelect: function (item) { //选择项之后的事件 ,item是当前选中的。 alert(iterm); } }); $(function(){ /** $('#addCombo .typeahead').typeahead({ hint: true,highlight: true,minLength: 1 },{ name: 'states',source: states }); **/ $('#addCombo .typeahead').typeahead(null,{ name: 'best-pictures',display: 'value',source: findOrderByIdVague }); $('#addCombo .typeahead').bind('typeahead:select',function(ev,suggestion) { console.log('Selection: ' + suggestion.value); }); });   …findOrderByIdVague/D20150502.json: [ { "value" : "D20150502173435141299" },{ "value" : "D20150502172928109304" } ]

preOrderByIdVague.json:

rush:js;"> [{"value":"D201"}]

docs 相关的事件:

 

rush:js;"> Custom Events The following events get triggered on the input element during the life-cycle of a typeahead. typeahead:active – Fired when the typeahead moves to active state. typeahead:idle – Fired when the typeahead moves to idle state. typeahead:open – Fired when the results container is opened. typeahead:close – Fired when the results container is closed. typeahead:change – normalized version of the native change event. Fired when input loses focus and the value has changed since it originally received focus. typeahead:render – Fired when suggestions are rendered for a dataset. The event handler will be invoked with 4 arguments: the jQuery event object,the suggestions that were rendered,a flag indicating whether the suggestions were fetched asynchronously,and the name of the dataset the rendering occurred in. typeahead:select – Fired when a suggestion is selected. The event handler will be invoked with 2 arguments: the jQuery event object and the suggestion object that was selected. typeahead:autocomplete – Fired when a autocompletion occurs. The event handler will be invoked with 2 arguments: the jQuery event object and the suggestion object that was used for autocompletion. typeahead:cursorchange – Fired when the results container cursor moves. The event handler will be invoked with 2 arguments: the jQuery event object and the suggestion object that was moved to. typeahead:asyncrequest – Fired when an async request for suggestions is sent. The event handler will be invoked with 3 arguments: the jQuery event object,the current query,and the name of the dataset the async request belongs to. typeahead:asynccancel – Fired when an async request is cancelled. The event handler will be invoked with 3 arguments: the jQuery event object,and the name of the dataset the async request belonged to. typeahead:asyncreceive – Fired when an async request completes. The event handler will be invoked with 3 arguments: the jQuery event object,and the name of the dataset the async request belongs to. Example usage: $('.typeahead').bind('typeahead:select',suggestion) { console.log('Selection: ' + suggestion); });

typeahead.bundle.js:

rush:js;"> /*! * typeahead.js 0.11.1 * https://github.com/twitter/typeahead.js * copyright 2013-2015 Twitter,Inc. and other contributors; Licensed MIT */ (function(root,factory) { if (typeof define === "function" && define.amd) { define("bloodhound",[ "jquery" ],function(a0) { return root["Bloodhound"] = factory(a0); }); } else if (typeof exports === "object") { module.exports = factory(require("jquery")); } else { root["Bloodhound"] = factory(jQuery); } })(this,function($) { var _ = function() { "use strict"; return { isMsie: function() { return /(msie|trident)/i.test(navigator.userAgent) ? navigator.userAgent.match(/(msie |rv:)(\d+(.\d+)?)/i)[2] : false; },isBlankString: function(str) { return !str || /^\s*$/.test(str); },escapeRegExChars: function(str) { return str.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g,"\\$&"); },isstring: function(obj) { return typeof obj === "string"; },isNumber: function(obj) { return typeof obj === "number"; },isArray: $.isArray,isFunction: $.isFunction,isObject: $.isPlainObject,isUndefined: function(obj) { return typeof obj === "undefined"; },isElement: function(obj) { return !!(obj && obj.nodeType === 1); },isJQuery: function(obj) { return obj instanceof $; },toStr: function toStr(s) { return _.isUndefined(s) || s === null ? "" : s + ""; },bind: $.proxy,each: function(collection,cb) { $.each(collection,reverseArgs); function reverseArgs(index,value) { return cb(value,index); } },map: $.map,filter: $.grep,every: function(obj,test) { var result = true; if (!obj) { return result; } $.each(obj,function(key,val) { if (!(result = test.call(null,val,key,obj))) { return false; } }); return !!result; },some: function(obj,test) { var result = false; if (!obj) { return result; } $.each(obj,val) { if (result = test.call(null,obj)) { return false; } }); return !!result; },mixin: $.extend,identity: function(x) { return x; },clone: function(obj) { return $.extend(true,{},obj); },getIdGenerator: function() { var counter = 0; return function() { return counter++; }; },templatify: function templatify(obj) { return $.isFunction(obj) ? obj : template; function template() { return String(obj); } },defer: function(fn) { setTimeout(fn,0); },debounce: function(func,wait,immediate) { var timeout,result; return function() { var context = this,args = arguments,later,callNow; later = function() { timeout = null; if (!immediate) { result = func.apply(context,args); } }; callNow = immediate && !timeout; clearTimeout(timeout); timeout = setTimeout(later,wait); if (callNow) { result = func.apply(context,args); } return result; }; },throttle: function(func,wait) { var context,args,timeout,result,prevIoUs,later; prevIoUs = 0; later = function() { prevIoUs = new Date(); timeout = null; result = func.apply(context,args); }; return function() { var Now = new Date(),remaining = wait - (Now - prevIoUs); context = this; args = arguments; if (remaining <= 0) { clearTimeout(timeout); timeout = null; prevIoUs = Now; result = func.apply(context,args); } else if (!timeout) { timeout = setTimeout(later,remaining); } return result; }; },stringify: function(val) { return _.isstring(val) ? val : JSON.stringify(val); },noop: function() {} }; }(); var VERSION = "0.11.1"; var tokenizers = function() { "use strict"; return { nonword: nonword,whitespace: whitespace,obj: { nonword: getobjTokenizer(nonword),whitespace: getobjTokenizer(whitespace) } }; function whitespace(str) { str = _.toStr(str); return str ? str.split(/\s+/) : []; } function nonword(str) { str = _.toStr(str); return str ? str.split(/\W+/) : []; } function getobjTokenizer(tokenizer) { return function setKey(keys) { keys = _.isArray(keys) ? keys : [].slice.call(arguments,0); return function tokenize(o) { var tokens = []; _.each(keys,function(k) { tokens = tokens.concat(tokenizer(_.toStr(o[k]))); }); return tokens; }; }; } }(); var LruCache = function() { "use strict"; function LruCache(maxSize) { this.maxSize = _.isNumber(maxSize) ? maxSize : 100; this.reset(); if (this.maxSize <= 0) { this.set = this.get = $.noop; } } _.mixin(LruCache.prototype,{ set: function set(key,val) { var tailItem = this.list.tail,node; if (this.size >= this.maxSize) { this.list.remove(tailItem); delete this.hash[tailItem.key]; this.size--; } if (node = this.hash[key]) { node.val = val; this.list.movetoFront(node); } else { node = new Node(key,val); this.list.add(node); this.hash[key] = node; this.size++; } },get: function get(key) { var node = this.hash[key]; if (node) { this.list.movetoFront(node); return node.val; } },reset: function reset() { this.size = 0; this.hash = {}; this.list = new List(); } }); function List() { this.head = this.tail = null; } _.mixin(List.prototype,{ add: function add(node) { if (this.head) { node.next = this.head; this.head.prev = node; } this.head = node; this.tail = this.tail || node; },remove: function remove(node) { node.prev ? node.prev.next = node.next : this.head = node.next; node.next ? node.next.prev = node.prev : this.tail = node.prev; },movetoFront: function(node) { this.remove(node); this.add(node); } }); function Node(key,val) { this.key = key; this.val = val; this.prev = this.next = null; } return LruCache; }(); var PersistentStorage = function() { "use strict"; var LOCAL_STORAGE; try { LOCAL_STORAGE = window.localStorage; LOCAL_STORAGE.setItem("~~~","!"); LOCAL_STORAGE.removeItem("~~~"); } catch (err) { LOCAL_STORAGE = null; } function PersistentStorage(namespace,override) { this.prefix = [ "__",namespace,"__" ].join(""); this.ttlKey = "__ttl__"; this.keyMatcher = new RegExp("^" + _.escapeRegExChars(this.prefix)); this.ls = override || LOCAL_STORAGE; !this.ls && this._noop(); } _.mixin(PersistentStorage.prototype,{ _prefix: function(key) { return this.prefix + key; },_ttlKey: function(key) { return this._prefix(key) + this.ttlKey; },_noop: function() { this.get = this.set = this.remove = this.clear = this.isExpired = _.noop; },_safeSet: function(key,val) { try { this.ls.setItem(key,val); } catch (err) { if (err.name === "QuotaExceededError") { this.clear(); this._noop(); } } },get: function(key) { if (this.isExpired(key)) { this.remove(key); } return decode(this.ls.getItem(this._prefix(key))); },set: function(key,ttl) { if (_.isNumber(ttl)) { this._safeSet(this._ttlKey(key),encode(Now() + ttl)); } else { this.ls.removeItem(this._ttlKey(key)); } return this._safeSet(this._prefix(key),encode(val)); },remove: function(key) { this.ls.removeItem(this._ttlKey(key)); this.ls.removeItem(this._prefix(key)); return this; },clear: function() { var i,keys = gatherMatchingKeys(this.keyMatcher); for (i = keys.length; i--; ) { this.remove(keys[i]); } return this; },isExpired: function(key) { var ttl = decode(this.ls.getItem(this._ttlKey(key))); return _.isNumber(ttl) && Now() > ttl ? true : false; } }); return PersistentStorage; function Now() { return new Date().getTime(); } function encode(val) { return JSON.stringify(_.isUndefined(val) ? null : val); } function decode(val) { return $.parseJSON(val); } function gatherMatchingKeys(keyMatcher) { var i,keys = [],len = LOCAL_STORAGE.length; for (i = 0; i < len; i++) { if ((key = LOCAL_STORAGE.key(i)).match(keyMatcher)) { keys.push(key.replace(keyMatcher,"")); } } return keys; } }(); var Transport = function() { "use strict"; var pendingRequestsCount = 0,pendingRequests = {},maxPendingRequests = 6,sharedCache = new LruCache(10); function Transport(o) { o = o || {}; this.cancelled = false; this.lastReq = null; this._send = o.transport; this._get = o.limiter ? o.limiter(this._get) : this._get; this._cache = o.cache === false ? new LruCache(0) : sharedCache; } Transport.setMaxPendingRequests = function setMaxPendingRequests(num) { maxPendingRequests = num; }; Transport.resetCache = function resetCache() { sharedCache.reset(); }; _.mixin(Transport.prototype,{ _fingerprint: function fingerprint(o) { o = o || {}; return o.url + o.type + $.param(o.data || {}); },_get: function(o,cb) { var that = this,fingerprint,jqXhr; fingerprint = this._fingerprint(o); if (this.cancelled || fingerprint !== this.lastReq) { return; } if (jqXhr = pendingRequests[fingerprint]) { jqXhr.done(done).fail(fail); } else if (pendingRequestsCount < maxPendingRequests) { pendingRequestsCount++; pendingRequests[fingerprint] = this._send(o).done(done).fail(fail).always(always); } else { this.onDeckRequestArgs = [].slice.call(arguments,0); } function done(resp) { cb(null,resp); that._cache.set(fingerprint,resp); } function fail() { cb(true); } function always() { pendingRequestsCount--; delete pendingRequests[fingerprint]; if (that.onDeckRequestArgs) { that._get.apply(that,that.onDeckRequestArgs); that.onDeckRequestArgs = null; } } },get: function(o,cb) { var resp,fingerprint; cb = cb || $.noop; o = _.isstring(o) ? { url: o } : o || {}; fingerprint = this._fingerprint(o); this.cancelled = false; this.lastReq = fingerprint; if (resp = this._cache.get(fingerprint)) { cb(null,resp); } else { this._get(o,cb); } },cancel: function() { this.cancelled = true; } }); return Transport; }(); var SearchIndex = window.SearchIndex = function() { "use strict"; var CHILDREN = "c",IDS = "i"; function SearchIndex(o) { o = o || {}; if (!o.datumTokenizer || !o.queryTokenizer) { $.error("datumTokenizer and queryTokenizer are both required"); } this.identify = o.identify || _.stringify; this.datumTokenizer = o.datumTokenizer; this.queryTokenizer = o.queryTokenizer; this.reset(); } _.mixin(SearchIndex.prototype,{ bootstrap: function bootstrap(o) { this.datums = o.datums; this.trie = o.trie; },add: function(data) { var that = this; data = _.isArray(data) ? data : [ data ]; _.each(data,function(datum) { var id,tokens; that.datums[id = that.identify(datum)] = datum; tokens = normalizetokens(that.datumTokenizer(datum)); _.each(tokens,function(token) { var node,chars,ch; node = that.trie; chars = token.split(""); while (ch = chars.shift()) { node = node[CHILDREN][ch] || (node[CHILDREN][ch] = newNode()); node[IDS].push(id); } }); }); },get: function get(ids) { var that = this; return _.map(ids,function(id) { return that.datums[id]; }); },search: function search(query) { var that = this,tokens,matches; tokens = normalizetokens(this.queryTokenizer(query)); _.each(tokens,ch,ids; if (matches && matches.length === 0) { return false; } node = that.trie; chars = token.split(""); while (node && (ch = chars.shift())) { node = node[CHILDREN][ch]; } if (node && chars.length === 0) { ids = node[IDS].slice(0); matches = matches ? getIntersection(matches,ids) : ids; } else { matches = []; return false; } }); return matches ? _.map(unique(matches),function(id) { return that.datums[id]; }) : []; },all: function all() { var values = []; for (var key in this.datums) { values.push(this.datums[key]); } return values; },reset: function reset() { this.datums = {}; this.trie = newNode(); },serialize: function serialize() { return { datums: this.datums,trie: this.trie }; } }); return SearchIndex; function normalizetokens(tokens) { tokens = _.filter(tokens,function(token) { return !!token; }); tokens = _.map(tokens,function(token) { return token.toLowerCase(); }); return tokens; } function newNode() { var node = {}; node[IDS] = []; node[CHILDREN] = {}; return node; } function unique(array) { var seen = {},uniques = []; for (var i = 0,len = array.length; i < len; i++) { if (!seen[array[i]]) { seen[array[i]] = true; uniques.push(array[i]); } } return uniques; } function getIntersection(arrayA,arrayB) { var ai = 0,bi = 0,intersection = []; arrayA = arrayA.sort(); arrayB = arrayB.sort(); var lenArrayA = arrayA.length,lenArrayB = arrayB.length; while (ai < lenArrayA && bi < lenArrayB) { if (arrayA[ai] < arrayB[bi]) { ai++; } else if (arrayA[ai] > arrayB[bi]) { bi++; } else { intersection.push(arrayA[ai]); ai++; bi++; } } return intersection; } }(); var Prefetch = function() { "use strict"; var keys; keys = { data: "data",protocol: "protocol",thumbprint: "thumbprint" }; function Prefetch(o) { this.url = o.url; this.ttl = o.ttl; this.cache = o.cache; this.prepare = o.prepare; this.transform = o.transform; this.transport = o.transport; this.thumbprint = o.thumbprint; this.storage = new PersistentStorage(o.cacheKey); } _.mixin(Prefetch.prototype,{ _settings: function settings() { return { url: this.url,type: "GET",dataType: "json" }; },store: function store(data) { if (!this.cache) { return; } this.storage.set(keys.data,data,this.ttl); this.storage.set(keys.protocol,location.protocol,this.ttl); this.storage.set(keys.thumbprint,this.thumbprint,this.ttl); },fromCache: function fromCache() { var stored = {},isExpired; if (!this.cache) { return null; } stored.data = this.storage.get(keys.data); stored.protocol = this.storage.get(keys.protocol); stored.thumbprint = this.storage.get(keys.thumbprint); isExpired = stored.thumbprint !== this.thumbprint || stored.protocol !== location.protocol; return stored.data && !isExpired ? stored.data : null; },fromNetwork: function(cb) { var that = this,settings; if (!cb) { return; } settings = this.prepare(this._settings()); this.transport(settings).fail(onError).done(onResponse); function onError() { cb(true); } function onResponse(resp) { cb(null,that.transform(resp)); } },clear: function clear() { this.storage.clear(); return this; } }); return Prefetch; }(); var Remote = function() { "use strict"; function Remote(o) { this.url = o.url; this.prepare = o.prepare; this.transform = o.transform; this.transport = new Transport({ cache: o.cache,limiter: o.limiter,transport: o.transport }); } _.mixin(Remote.prototype,get: function get(query,settings; if (!cb) { return; } query = query || ""; settings = this.prepare(query,this._settings()); return this.transport.get(settings,onResponse); function onResponse(err,resp) { err ? cb([]) : cb(that.transform(resp)); } },cancelLastRequest: function cancelLastRequest() { this.transport.cancel(); } }); return Remote; }(); var oParser = function() { "use strict"; return function parse(o) { var defaults,sorter; defaults = { initialize: true,identify: _.stringify,datumTokenizer: null,queryTokenizer: null,sufficient: 5,sorter: null,local: [],prefetch: null,remote: null }; o = _.mixin(defaults,o || {}); !o.datumTokenizer && $.error("datumTokenizer is required"); !o.queryTokenizer && $.error("queryTokenizer is required"); sorter = o.sorter; o.sorter = sorter ? function(x) { return x.sort(sorter); } : _.identity; o.local = _.isFunction(o.local) ? o.local() : o.local; o.prefetch = parsePrefetch(o.prefetch); o.remote = parseRemote(o.remote); return o; }; function parsePrefetch(o) { var defaults; if (!o) { return null; } defaults = { url: null,ttl: 24 * 60 * 60 * 1e3,cache: true,cacheKey: null,thumbprint: "",prepare: _.identity,transform: _.identity,transport: null }; o = _.isstring(o) ? { url: o } : o; o = _.mixin(defaults,o); !o.url && $.error("prefetch requires url to be set"); o.transform = o.filter || o.transform; o.cacheKey = o.cacheKey || o.url; o.thumbprint = VERSION + o.thumbprint; o.transport = o.transport ? callbackToDeferred(o.transport) : $.ajax; return o; } function parseRemote(o) { var defaults; if (!o) { return; } defaults = { url: null,prepare: null,replace: null,wildcard: null,limiter: null,rateLimitBy: "debounce",rateLimitWait: 300,o); !o.url && $.error("remote requires url to be set"); o.transform = o.filter || o.transform; o.prepare = toRemotePrepare(o); o.limiter = toLimiter(o); o.transport = o.transport ? callbackToDeferred(o.transport) : $.ajax; delete o.replace; delete o.wildcard; delete o.rateLimitBy; delete o.rateLimitWait; return o; } function toRemotePrepare(o) { var prepare,replace,wildcard; prepare = o.prepare; replace = o.replace; wildcard = o.wildcard; if (prepare) { return prepare; } if (replace) { prepare = prepareByReplace; } else if (o.wildcard) { prepare = prepareByWildcard; } else { prepare = idenityPrepare; } return prepare; function prepareByReplace(query,settings) { settings.url = replace(settings.url,query); return settings; } function prepareByWildcard(query,settings) { settings.url = settings.url.replace(wildcard,encodeURIComponent(query)); return settings; } function idenityPrepare(query,settings) { return settings; } } function toLimiter(o) { var limiter,method,wait; limiter = o.limiter; method = o.rateLimitBy; wait = o.rateLimitWait; if (!limiter) { limiter = /^throttle$/i.test(method) ? throttle(wait) : debounce(wait); } return limiter; function debounce(wait) { return function debounce(fn) { return _.debounce(fn,wait); }; } function throttle(wait) { return function throttle(fn) { return _.throttle(fn,wait); }; } } function callbackToDeferred(fn) { return function wrapper(o) { var deferred = $.Deferred(); fn(o,onSuccess,onError); return deferred; function onSuccess(resp) { _.defer(function() { deferred.resolve(resp); }); } function onError(err) { _.defer(function() { deferred.reject(err); }); } }; } }(); var Bloodhound = function() { "use strict"; var old; old = window && window.Bloodhound; function Bloodhound(o) { o = oParser(o); this.sorter = o.sorter; this.identify = o.identify; this.sufficient = o.sufficient; this.local = o.local; this.remote = o.remote ? new Remote(o.remote) : null; this.prefetch = o.prefetch ? new Prefetch(o.prefetch) : null; this.index = new SearchIndex({ identify: this.identify,datumTokenizer: o.datumTokenizer,queryTokenizer: o.queryTokenizer }); o.initialize !== false && this.initialize(); } Bloodhound.noConflict = function noConflict() { window && (window.Bloodhound = old); return Bloodhound; }; Bloodhound.tokenizers = tokenizers; _.mixin(Bloodhound.prototype,{ __ttAdapter: function ttAdapter() { var that = this; return this.remote ? withAsync : withoutAsync; function withAsync(query,sync,async) { return that.search(query,async); } function withoutAsync(query,sync) { return that.search(query,sync); } },_loadPrefetch: function loadPrefetch() { var that = this,deferred,serialized; deferred = $.Deferred(); if (!this.prefetch) { deferred.resolve(); } else if (serialized = this.prefetch.fromCache()) { this.index.bootstrap(serialized); deferred.resolve(); } else { this.prefetch.fromNetwork(done); } return deferred.promise(); function done(err,data) { if (err) { return deferred.reject(); } that.add(data); that.prefetch.store(that.index.serialize()); deferred.resolve(); } },_initialize: function initialize() { var that = this,deferred; this.clear(); (this.initPromise = this._loadPrefetch()).done(addLocalToIndex); return this.initPromise; function addLocalToIndex() { that.add(that.local); } },initialize: function initialize(force) { return !this.initPromise || force ? this._initialize() : this.initPromise; },add: function add(data) { this.index.add(data); return this; },get: function get(ids) { ids = _.isArray(ids) ? ids : [].slice.call(arguments); return this.index.get(ids); },search: function search(query,async) { var that = this,local; local = this.sorter(this.index.search(query)); sync(this.remote ? local.slice() : local); if (this.remote && local.length < this.sufficient) { this.remote.get(query,processRemote); } else if (this.remote) { this.remote.cancelLastRequest(); } return this; function processRemote(remote) { var nonDuplicates = []; _.each(remote,function(r) { !_.some(local,function(l) { return that.identify(r) === that.identify(l); }) && nonDuplicates.push(r); }); async && async(nonDuplicates); } },all: function all() { return this.index.all(); },clear: function clear() { this.index.reset(); return this; },clearPrefetchCache: function clearPrefetchCache() { this.prefetch && this.prefetch.clear(); return this; },clearRemoteCache: function clearRemoteCache() { Transport.resetCache(); return this; },ttAdapter: function ttAdapter() { return this.__ttAdapter(); } }); return Bloodhound; }(); return Bloodhound; }); (function(root,factory) { if (typeof define === "function" && define.amd) { define("typeahead.js",function(a0) { return factory(a0); }); } else if (typeof exports === "object") { module.exports = factory(require("jquery")); } else { factory(jQuery); } })(this,noop: function() {} }; }(); var WWW = function() { "use strict"; var defaultClassNames = { wrapper: "twitter-typeahead",input: "tt-input",hint: "tt-hint",menu: "tt-menu",dataset: "tt-dataset",suggestion: "tt-suggestion",selectable: "tt-selectable",empty: "tt-empty",open: "tt-open",cursor: "tt-cursor",highlight: "tt-highlight" }; return build; function build(o) { var www,classes; classes = _.mixin({},defaultClassNames,o); www = { css: buildCss(),classes: classes,html: buildHtml(classes),selectors: buildSelectors(classes) }; return { css: www.css,html: www.html,classes: www.classes,selectors: www.selectors,mixin: function(o) { _.mixin(o,www); } }; } function buildHtml(c) { return { wrapper: '',menu: '' }; } function buildSelectors(classes) { var selectors = {}; _.each(classes,function(v,k) { selectors[k] = "." + v; }); return selectors; } function buildCss() { var css = { wrapper: { position: "relative",display: "inline-block" },hint: { position: "absolute",top: "0",left: "0",borderColor: "transparent",BoxShadow: "none",opacity: "1" },input: { position: "relative",verticalAlign: "top",backgroundColor: "transparent" },inputWithNoHint: { position: "relative",verticalAlign: "top" },menu: { position: "absolute",top: "100%",zIndex: "100",display: "none" },ltr: { left: "0",right: "auto" },rtl: { left: "auto",right: " 0" } }; if (_.isMsie()) { _.mixin(css.input,{ backgroundImage: "url(data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)" }); } return css; } }(); var EventBus = function() { "use strict"; var namespace,deprecationMap; namespace = "typeahead:"; deprecationMap = { render: "rendered",cursorchange: "cursorchanged",select: "selected",autocomplete: "autocompleted" }; function EventBus(o) { if (!o || !o.el) { $.error("EventBus initialized without el"); } this.$el = $(o.el); } _.mixin(EventBus.prototype,{ _trigger: function(type,args) { var $e; $e = $.Event(namespace + type); (args = args || []).unshift($e); this.$el.trigger.apply(this.$el,args); return $e; },before: function(type) { var args,$e; args = [].slice.call(arguments,1); $e = this._trigger("before" + type,args); return $e.isDefaultPrevented(); },trigger: function(type) { var deprecatedType; this._trigger(type,[].slice.call(arguments,1)); if (deprecatedType = deprecationMap[type]) { this._trigger(deprecatedType,1)); } } }); return EventBus; }(); var EventEmitter = function() { "use strict"; var splitter = /\s+/,nextTick = getNextTick(); return { onSync: onSync,onAsync: onAsync,off: off,trigger: trigger }; function on(method,types,cb,context) { var type; if (!cb) { return this; } types = types.split(splitter); cb = context ? bindContext(cb,context) : cb; this._callbacks = this._callbacks || {}; while (type = types.shift()) { this._callbacks[type] = this._callbacks[type] || { sync: [],async: [] }; this._callbacks[type][method].push(cb); } return this; } function onAsync(types,context) { return on.call(this,"async",context); } function onSync(types,"sync",context); } function off(types) { var type; if (!this._callbacks) { return this; } types = types.split(splitter); while (type = types.shift()) { delete this._callbacks[type]; } return this; } function trigger(types) { var type,callbacks,syncFlush,asyncFlush; if (!this._callbacks) { return this; } types = types.split(splitter); args = [].slice.call(arguments,1); while ((type = types.shift()) && (callbacks = this._callbacks[type])) { syncFlush = getFlush(callbacks.sync,this,[ type ].concat(args)); asyncFlush = getFlush(callbacks.async,[ type ].concat(args)); syncFlush() && nextTick(asyncFlush); } return this; } function getFlush(callbacks,context,args) { return flush; function flush() { var cancelled; for (var i = 0,len = callbacks.length; !cancelled && i < len; i += 1) { cancelled = callbacks[i].apply(context,args) === false; } return !cancelled; } } function getNextTick() { var nextTickFn; if (window.setImmediate) { nextTickFn = function nextTickSetImmediate(fn) { setImmediate(function() { fn(); }); }; } else { nextTickFn = function nextTickSetTimeout(fn) { setTimeout(function() { fn(); },0); }; } return nextTickFn; } function bindContext(fn,context) { return fn.bind ? fn.bind(context) : function() { fn.apply(context,0)); }; } }(); var highlight = function(doc) { "use strict"; var defaults = { node: null,pattern: null,tagName: "h3",className: null,wordsOnly: false,caseSensitive: false }; return function hightlight(o) { var regex; o = _.mixin({},defaults,o); if (!o.node || !o.pattern) { return; } o.pattern = _.isArray(o.pattern) ? o.pattern : [ o.pattern ]; regex = getRegex(o.pattern,o.caseSensitive,o.wordsOnly); traverse(o.node,hightlightTextNode); function hightlightTextNode(textNode) { var match,patternNode,wrapperNode; if (match = regex.exec(textNode.data)) { wrapperNode = doc.createElement(o.tagName); o.className && (wrapperNode.className = o.className); patternNode = textNode.splitText(match.index); patternNode.splitText(match[0].length); wrapperNode.appendChild(patternNode.cloneNode(true)); textNode.parentNode.replaceChild(wrapperNode,patternNode); } return !!match; } function traverse(el,hightlightTextNode) { var childNode,TEXT_NODE_TYPE = 3; for (var i = 0; i < el.childNodes.length; i++) { childNode = el.childNodes[i]; if (childNode.nodeType === TEXT_NODE_TYPE) { i += hightlightTextNode(childNode) ? 1 : 0; } else { traverse(childNode,hightlightTextNode); } } } }; function getRegex(patterns,caseSensitive,wordsOnly) { var escapedPatterns = [],regexStr; for (var i = 0,len = patterns.length; i < len; i++) { escapedPatterns.push(_.escapeRegExChars(patterns[i])); } regexStr = wordsOnly ? "\\b(" + escapedPatterns.join("|") + ")\\b" : "(" + escapedPatterns.join("|") + ")"; return caseSensitive ? new RegExp(regexStr) : new RegExp(regexStr,"i"); } }(window.document); var Input = function() { "use strict"; var specialKeyCodeMap; specialKeyCodeMap = { 9: "tab",27: "esc",37: "left",39: "right",13: "enter",38: "up",40: "down" }; function Input(o,www) { o = o || {}; if (!o.input) { $.error("input is missing"); } www.mixin(this); this.$hint = $(o.hint); this.$input = $(o.input); this.query = this.$input.val(); this.queryWhenFocused = this.hasFocus() ? this.query : null; this.$overflowHelper = buildOverflowHelper(this.$input); this._checkLanguageDirection(); if (this.$hint.length === 0) { this.setHint = this.getHint = this.clearHint = this.clearHintIfInvalid = _.noop; } } Input.normalizeQuery = function(str) { return _.toStr(str).replace(/^\s*/g,"").replace(/\s{2,}/g," "); }; _.mixin(Input.prototype,EventEmitter,{ _onBlur: function onBlur() { this.resetInputValue(); this.trigger("blurred"); },_onFocus: function onFocus() { this.queryWhenFocused = this.query; this.trigger("focused"); },_onKeydown: function onKeydown($e) { var keyName = specialKeyCodeMap[$e.which || $e.keyCode]; this._managePreventDefault(keyName,$e); if (keyName && this._shouldTrigger(keyName,$e)) { this.trigger(keyName + "Keyed",$e); } },_onInput: function onInput() { this._setQuery(this.getInputValue()); this.clearHintIfInvalid(); this._checkLanguageDirection(); },_managePreventDefault: function managePreventDefault(keyName,$e) { var preventDefault; switch (keyName) { case "up": case "down": preventDefault = !withModifier($e); break; default: preventDefault = false; } preventDefault && $e.preventDefault(); },_shouldTrigger: function shouldTrigger(keyName,$e) { var trigger; switch (keyName) { case "tab": trigger = !withModifier($e); break; default: trigger = true; } return trigger; },_checkLanguageDirection: function checkLanguageDirection() { var dir = (this.$input.css("direction") || "ltr").toLowerCase(); if (this.dir !== dir) { this.dir = dir; this.$hint.attr("dir",dir); this.trigger("langDirChanged",dir); } },_setQuery: function setQuery(val,silent) { var areEquivalent,hasDifferentWhitespace; areEquivalent = areQueriesEquivalent(val,this.query); hasDifferentWhitespace = areEquivalent ? this.query.length !== val.length : false; this.query = val; if (!silent && !areEquivalent) { this.trigger("queryChanged",this.query); } else if (!silent && hasDifferentWhitespace) { this.trigger("whitespaceChanged",this.query); } },bind: function() { var that = this,onBlur,onFocus,onKeydown,onInput; onBlur = _.bind(this._onBlur,this); onFocus = _.bind(this._onFocus,this); onKeydown = _.bind(this._onKeydown,this); onInput = _.bind(this._onInput,this); this.$input.on("blur.tt",onBlur).on("focus.tt",onFocus).on("keydown.tt",onKeydown); if (!_.isMsie() || _.isMsie() > 9) { this.$input.on("input.tt",onInput); } else { this.$input.on("keydown.tt keypress.tt cut.tt paste.tt",function($e) { if (specialKeyCodeMap[$e.which || $e.keyCode]) { return; } _.defer(_.bind(that._onInput,that,$e)); }); } return this; },focus: function focus() { this.$input.focus(); },blur: function blur() { this.$input.blur(); },getLangDir: function getLangDir() { return this.dir; },getQuery: function getQuery() { return this.query || ""; },setQuery: function setQuery(val,silent) { this.setInputValue(val); this._setQuery(val,silent); },hasQueryChangedSinceLastFocus: function hasQueryChangedSinceLastFocus() { return this.query !== this.queryWhenFocused; },getInputValue: function getInputValue() { return this.$input.val(); },setInputValue: function setInputValue(value) { this.$input.val(value); this.clearHintIfInvalid(); this._checkLanguageDirection(); },resetInputValue: function resetInputValue() { this.setInputValue(this.query); },getHint: function getHint() { return this.$hint.val(); },setHint: function setHint(value) { this.$hint.val(value); },clearHint: function clearHint() { this.setHint(""); },clearHintIfInvalid: function clearHintIfInvalid() { var val,hint,valIsPrefixOfHint,isValid; val = this.getInputValue(); hint = this.getHint(); valIsPrefixOfHint = val !== hint && hint.indexOf(val) === 0; isValid = val !== "" && valIsPrefixOfHint && !this.hasOverflow(); !isValid && this.clearHint(); },hasFocus: function hasFocus() { return this.$input.is(":focus"); },hasOverflow: function hasOverflow() { var constraint = this.$input.width() - 2; this.$overflowHelper.text(this.getInputValue()); return this.$overflowHelper.width() >= constraint; },isCursorAtEnd: function() { var valueLength,selectionStart,range; valueLength = this.$input.val().length; selectionStart = this.$input[0].selectionStart; if (_.isNumber(selectionStart)) { return selectionStart === valueLength; } else if (document.selection) { range = document.selection.createrange(); range.moveStart("character",-valueLength); return valueLength === range.text.length; } return true; },destroy: function destroy() { this.$hint.off(".tt"); this.$input.off(".tt"); this.$overflowHelper.remove(); this.$hint = this.$input = this.$overflowHelper = $("
"); } }); return Input; function buildOverflowHelper($input) { return $('

typeahead.css:

rush:js;"> .typeahead,.tt-query,.tt-hint { width: 396px; height: 30px; padding: 8px 12px; font-size: 24px; line-height: 30px; border: 2px solid #ccc; -webkit-border-radius: 8px; -moz-border-radius: 8px; border-radius: 8px; outline: none; } .typeahead { background-color: #fff; } .typeahead:focus { border: 2px solid #0097cf; } .tt-query { -webkit-Box-shadow: inset 0 1px 1px rgba(0,0.075); -moz-Box-shadow: inset 0 1px 1px rgba(0,0.075); Box-shadow: inset 0 1px 1px rgba(0,0.075); } .tt-hint { color: #999 } .tt-menu { width: 422px; margin: 12px 0; padding: 8px 0; background-color: #fff; border: 1px solid #ccc; border: 1px solid rgba(0,0.2); -webkit-border-radius: 8px; -moz-border-radius: 8px; border-radius: 8px; -webkit-Box-shadow: 0 5px 10px rgba(0,.2); -moz-Box-shadow: 0 5px 10px rgba(0,.2); Box-shadow: 0 5px 10px rgba(0,.2); } .tt-suggestion { padding: 3px 20px; font-size: 18px; line-height: 24px; } .tt-suggestion:hover { cursor: pointer; color: #fff; background-color: #0097cf; } .tt-suggestion.tt-cursor { color: #fff; background-color: #0097cf; } .tt-suggestion p { margin: 0; } .gist { font-size: 14px; } /* example specific styles */ /* ----------------------- */ #custom-templates .empty-message { padding: 5px 10px; text-align: center; } #multiple-datasets .league-name { margin: 0 20px 5px 20px; padding: 3px 0; border-bottom: 1px solid #ccc; } #scrollable-dropdown-menu .tt-menu { max-height: 150px; overflow-y: auto; } #rtl-support .tt-menu { text-align: right; }

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bootstrap3bootstrap3自动补全typeahead

Docker 命令自动补全?要的

Docker 命令自动补全?要的

前言

不知道这个小伙伴有多久没用过 Docker 了, 突然对我说 Docker 命令怎么发生变化了

docker run ...
#变成了
docker container run ...

他说,本来对 Docker 命令就不熟悉,这下感觉更加混乱了。其实个人看来,这么变化还使得命令看着更加规整

当在命令行直接输入 docker 然后回车:

从图中可以看出,Docker 将命令结构化的划分了两大类,Management Commands 和 Commands,其实前者就是一级命令,后者就是子命令 (这是自 Docker 1.13 开始的改动),所以以后使用命令就是这样滴:

docker <Management Command> <Sub-Command <Opts/Args>>

这样以后我们使用命令只需要先关注 Management Commands 就可以了,那后续的子命令还是不知道怎么用,还要一点点查询嘛?

Docker 命令自动补全

为了解决这个问题,Docker 也提供了非常完善的命令自动补全功能,也就是把一切交给 Tab 键

Mac 安装Docker命令自动补全

逐条键入下面命令:

brew install bash-completion

sudo curl -L https://raw.githubusercontent.com/docker/compose/1.27.4/contrib/completion/bash/docker-compose -o /usr/local/etc/bash_completion.d/docker-compose

打开 ~/.bash_profile 文件,将下面内容粘贴进去:

if [ -f $(brew --prefix)/etc/bash_completion ]; then
 . $(brew --prefix)/etc/bash_completion
 fi

然后刷新使之生效

source ~/.bash_profile

我觉得 Zsh 更好,为什么?答案请看这篇:这篇 iTerm2 + Oh My Zsh 教程手把手让你成为这条街最靓的仔

Zsh安装Docker命令自动补全

如果没有安装 Oh-My-Zsh shell,第一步则是要先安装它,逐条键入下面命令:

mkdir -p ~/.zsh/completion

curl -L https://raw.githubusercontent.com/docker/compose/1.27.4/contrib/completion/zsh/_docker-compose > ~/.zsh/completion/_docker-compose

打开 ~/.zshrc 文件,将下面内容粘贴进去:

fpath=(~/.zsh/completion $fpath)
autoload -Uz compinit && compinit -i

比如我的 ~/.zshrc 文件内容:

搜索该文件插件位置,更新插件内容:

plugins=(... docker docker-compose
)

顺便说一下,强烈建议使用 git 插件

最后刷新一下使之生效:

source ~/.zshrc

总结

自动补全功能就可以疯狂利用你的 Tab 键,这比查阅文档要更加快捷,来看看效果:

日拱一兵 | 原创

Dwr实现自动补全功能

Dwr实现自动补全功能

books.java

package cn.lichen.entity; import java.io.Serializable; import java.util.Date; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.GenerationType; import javax.persistence.Id; @Entity public class Books implements Serializable{ private static final long serialVersionUID = 1L; private Integer id; private String isbn; private String title; private Double price; private Date pubDate; private String intro; @Id @GeneratedValue(strategy=GenerationType.IDENTITY) public Integer getId() { return id; } public String getIsbn() { return isbn; } public String getTitle() { return title; } public Double getPrice() { return price; } public Date getPubDate() { return pubDate; } public String getIntro() { return intro; } public void setId(Integer id) { this.id = id; } public void setIsbn(String isbn) { this.isbn = isbn; } public void setTitle(String title) { this.title = title; } public void setPrice(Double price) { this.price = price; } public void setPubDate(Date pubDate) { this.pubDate = pubDate; } public void setIntro(String intro) { this.intro = intro; } }


IBooksDao.java

package cn.lichen.dao;

import java.util.List;

import cn.lichen.entity.Books;

public interface IBooksDao {

/** * @Title: getAllBooks * @Description: 取得所有图书信息 * @param @return * @return List<Books> * @throws */ public List<Books> getAllBooks(); /** * @Title: searchBooksByTitle * @Description: 根据首字母,使用dwrAjax实现自动补全图书名称 * @param @param title * @param @return * @return List<Books> * @throws */ public List<Books> searchBooksByTitle(String title); /** * @Title: findBooksByTitle * @Description: 根据图书名称得到图书信息 * @param @param title * @param @return * @return Books * @throws */ public Books findBooksByTitle(String title); }


IBooksService.java

package cn.lichen.service; import java.util.List; public interface IBooksService { public List<Books> getAllBooks(); public List<Books> searchBooksByTitle(String title); public Books findBooksByTitle(String title); }


BooksServiceImpl.java

package cn.lichen.service.impl; import java.util.List; @Service("booksService") public class BooksServiceImpl implements IBooksService { private IBooksDao booksDao; @Resource(name="booksDao") public void setBooksDao(IBooksDao booksDao) { this.booksDao = booksDao; } @Override public List<Books> getAllBooks() { return booksDao.getAllBooks(); } @Override public List<Books> searchBooksByTitle(String title) { return booksDao.searchBooksByTitle(title); } @Override public Books findBooksByTitle(String title) { return booksDao.findBooksByTitle(title); } }


spring_service.xml

<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd" default-autowire="byName"> <context:annotation-config /> <context:component-scan base-package="cn.lichen" /> <bean id="dataSource"https://www.jb51.cc/tag/dio/" target="_blank">diobjectfactorybean"> <property name="jndiName"> <value>java:comp/env/testJndi</value> </property> </bean> <bean id="entityManagerFactory"https://www.jb51.cc/tag/factorybean/" target="_blank">factorybean"> <property name="dataSource" ref="dataSource" /> <property name="packagesToScan" value="cn.lichen" /> <property name="jpavendorAdapter"> <beanhttps://www.jb51.cc/tag/vend/" target="_blank">vendor.HibernateJpavendorAdapter"> <property name="showsql" value="true" /> <property name="generateDdl" value="true" /> </bean> </property> <property name="mappingResources"> <list> <value>cn.lichen.entity.Books</value> </list> </property> </bean> </beans>


dwr.xml

<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE dwr PUBLIC "-//GetAhead Limited//DTD Direct Web Remoting 2.0//EN" "http://getahead.org/dwr/dwr20.dtd"> <dwr> <allow> <create creator="spring" javascript="booksManage"> <param name="beanName" value="booksService" /> </create> <convert converter="bean" match="cn.lichen.entity.Books" /> </allow> </dwr>


web.xml

<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0"> <display-name></display-name> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <!-- dwr基础 --> <servlet> <servlet-name>dwr-invoker</servlet-name> <servlet-class>org.directwebremoting.servlet.DwrServlet</servlet-class> <init-param> <param-name>debug</param-name> <param-value>true</param-value> </init-param> <init-param> <param-name>crossDomainSessionSecurity</param-name> <param-value>false</param-value> </init-param> <init-param> <param-name>allowScriptTagRemoting</param-name> <param-value>true</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>dwr-invoker</servlet-name> <url-pattern>/dwr/*</url-pattern> </servlet-mapping> <context-param> <param-name>webAppRootKey</param-name> <param-value>webapp.root</param-value> </context-param> <filter> <filter-name>openSessionInViewFilter</filter-name> <filter-class>org.springframework.orm.hibernate4.support.OpenSessionInViewFilter</filter-class> <init-param> <param-name>singleSession</param-name> <param-value>true</param-value> </init-param> </filter> <filter> <filter-name>encodingFilter</filter-name> <filter-class> org.springframework.web.filter.CharacterEncodingFilter </filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> </filter> <filter-mapping> <filter-name>encodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <filter> <filter-name>struts2</filter-name> <filter-class> org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter </filter-class> </filter> <filter-mapping> <filter-name>struts2</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <context-param> <param-name>log4jConfigLocation</param-name> <param-value>classpath:log4j.properties</param-value> </context-param> <listener> <listener-class> org.springframework.web.util.Log4jConfigListener </listener-class> </listener> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring_*.xml</param-value> </context-param> <listener> <listener-class> org.springframework.web.context.ContextLoaderListener </listener-class> </listener> <listener> <listener-class> org.springframework.web.context.request.RequestContextListener </listener-class> </listener> <listener> <listener-class> org.springframework.web.util.IntrospectorCleanupListener </listener-class> </listener> </web-app>


myjavascript.js //dwrAjax实现自动补全图书名称功能 function getTitle(evt) { evt = evt || window.event; if (!$('name').value == "") { var i = $("sel").size; var j = $("sel").selectedindex; if (event.keyCode == '38') { if (j == 0) { $("sel").selectedindex = j; } else { $("sel").selectedindex = j - 1; } } else if (event.keyCode == '40') { if (j == (i - 1)) { $("sel").selectedindex = j; } else { $("sel").selectedindex = j + 1; } } else if (event.keyCode == '13') { if (j != -1) { $("name").value = $("sel").options[j].innerHTML; $("dynamicdiv").style.visibility = "hidden"; } } else { booksManage.searchBooksByTitle($('name').value,bookstitlecallback); } } else { $("dynamicdiv").style.visibility = "hidden"; } } function bookstitlecallback(list) { if (list.length != 0) { $("dynamicdiv").style.visibility = "visible"; } else { $("dynamicdiv").style.visibility = "hidden"; } $("sel").size = list.length; dwr.util.removeAllOptions("sel"); dwr.util.addOptions("sel",list,"title","title"); } function getValue() { $("name").value = $("sel").options[$('sel').selectedindex].innerHTML; $("dynamicdiv").style.visibility = "hidden"; } // dwrAjax得到所有图书信息,用表格显示 function showAllBooks() { booksManage.getAllBooks(booksCallBack); } var count = 1; var cellFuncs = [ function(data) { return count++; },function(data) { return data.title; },function(data) { return data.isbn; },function(data) { return data.price; },function(data) { return data.pubDate; },]; function booksCallBack(books) { dwr.util.addRows("booksTable",books,cellFuncs); } // dwrAjax实现搜索功能 function findBooks() { var name = dwr.util.getValue("name"); booksManage.findBooksByTitle(name,showforsinglebook); } function showforsinglebook(data) { dwr.util.removeAllRows("booksTable"); dwr.util.setValue("singleBook",data.intro); }

context.xml

<?xml version="1.0" encoding="UTF-8"?> <Context> <Resource name="testJndi" type="javax.sql.DataSource" maxActive="100" maxIdle="30" maxWait="10000" username="root" password="bdqn" driverClassName="com.MysqL.jdbc.Driver" url="jdbc:MysqL://localhost:3306/t_books"/> </Context>


index.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% String path = request.getcontextpath(); String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + path + "/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>My JSP 'index.jsp' starting page</title> <style type="text/css"> table { width: 70%; margin: 150px auto; border-top: 1px solid black; border-left: 1px solid black; text-align: center; letter-spacing: 3px; } th { background-color: #00ff90; } th,td { border-bottom: 1px solid black; border-right: 1px solid black; } </style> <script type="text/javascript" src="dwr/engine.js"></script> <script type="text/javascript" src="dwr/util.js"></script> <script type="text/javascript" src="dwr/interface/booksManage.js"></script> <script type="text/javascript" src="js/myjavascript.js"></script> </head> <body> <input type="button" value="I'm comming" onclick="showAllBooks()"> <br /> 图书搜索: <input type="text" id="name" /> <div id="dynamicdiv"> <select id="sel" multiple="multiple"ondblclick="getValue()"> </select> </div> <input id="search" type="button" onclick="findBooks()" value="搜 索"> <div id="showBooks"/> <table id="booksTable" cellspacing="0" cellpadding="0"> <thead> <tr> <th>编号</th> <th>书名</th> <th>书号</th> <th>价格</th> <th>出版时间</th> </tr> </thead> </table> <div id="singleBook"></div> </body> <script type="text/javascript"> document.getElementById('name').onkeyup = function(evt) { getTitle(evt); }; </script> </html>

实现功能如图:


tomact7与dwr会报错 java.lang.SecurityException: CSRF Security Error

解决办法:

修改 web.xml 中 DWR配置信息

原:

<servlet>
<servlet-name>dwr-invoker</servlet-name>
<servlet-class>org.directwebremoting.spring.DwrSpringServlet</servlet-class>
<init-param>
<param-name>debug</param-name>
<param-value>true</param-value>
</init-param>
</servlet>

加入跨域调用配置信息(红色部分),修改为:

<servlet>
<servlet-name>dwr-invoker</servlet-name>
<servlet-class>org.directwebremoting.spring.DwrSpringServlet</servlet-class>
<init-param>
<param-name>debug</param-name>
<param-value>true</param-value>
</init-param>
<init-param> <param-name>crossDomainSessionSecurity</param-name> <param-value>false</param-value> </init-param> <init-param> <param-name>allowScriptTagRemoting</param-name> <param-value>true</param-value> </init-param> </servlet>

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