想了解URLHandleinSwift(一)--URL分解的新动态吗？本文将为您提供详细的信息，我们还将为您解答关于url拆解的相关问题，此外，我们还将为您介绍关于$str=asdfasdf12354
想了解URL Handle in Swift (一) -- URL 分解的新动态吗？本文将为您提供详细的信息，我们还将为您解答关于url拆解的相关问题，此外，我们还将为您介绍关于$str =asdfasdf123541[url]asdfasdf[/url]cxgew435asdfasdf; [url]asdfasdf[/url] 想把这块去掉，最好的方法是什么。、502 Bad Gateway - Registered endpoint failed to handle the request、Android Handle 主线程向子线程发送数据、Android 模糊搜索rawquery bind or column index out of range: handle 0x2fb180 报错的新知识。
本文目录一览：- URL Handle in Swift (一) -- URL 分解（url拆解）
- $str =asdfasdf123541[url]asdfasdf[/url]cxgew435asdfasdf; [url]asdfasdf[/url] 想把这块去掉，最好的方法是什么。
- 502 Bad Gateway - Registered endpoint failed to handle the request
- Android Handle 主线程向子线程发送数据
- Android 模糊搜索rawquery bind or column index out of range: handle 0x2fb180 报错
URL Handle in Swift (一) -- URL 分解（url拆解）
更新时间: 2018-6-6
在程序开发过程之中, 我们总是希望模块化处理某一类相似的事情。 在 ezbuy 开发中, 我接触到了对于 URL 处理的优秀的代码, 学习、改进、记录下来。希望对你有所帮助。
对于 URL 处理, 我将分为两个部分来说明:
- URL Handle in Swift (一) - URL 分解;
- URL Handle in Swift (二) - 响应链处理 URL 。
一、 URL 格式分析
URL(Uniform Resource Locator) 全称为“统一资源定位符”, 有时也被俗称为网页地址（网址)
URL标准格式如下:
截取《网络是怎样连接的》的图片来解释一下(图侵删)
实际上, URL的标准格式中, 我们可以通过参数来传递相关的信息, 如 https://www.google.com.hk/search?q=rsenjoyer
二、 iOS 客户端处理 URL
iOS客户端的URL大体可以分为两类:
- 自定义协议的URL, 如: igame://myNote
- 标准的HTTP(S) URL;
理论上你可以自定义任意的协议来构建URL, 响应协议URL。 在 iOS 开发中,你可以来自定义 URL Scheme 来实现应用程序间的通信。 URL Scheme 相关的信息你可以参考URL Schemes 使用详解 以及 Inter-App Communication。
对于标准的 HTTP(S) URL,不同的URL有着不一样的处理的方式。如:大多情况下, 应用程序受到一个URL就直接用 WKWebView 或者 UIWebView 直接打开; 但处理 Universal Link是需要打开应用程序内对应的页面等。
根据需求, 可以设计出如下的结构图:
不同的URL通过Bridge最终都转换为 “统一”的 Instruction, Instruction保存着 URL所有的信息, “Handler”通过 Instruction的信息执行不一样的处理。
Talk is Cheap， Show me the code!!
2.1 Bridge代码的实现
Bridge 根据URL的不同而转换成 Instruction。
//
// IGBridge.swift
// eziNode
//
// Created by enjoy on 2018/4/9.
// copyright © 2018年 enjoy. All rights reserved.
//
import Foundation
protocol IGBridge {
func bridgetoIG(from url: URL?) -> IGInstruction?
func bridgetoURL(from instruction: IGInstruction?) -> URL?
}
class IGameAppURLBridge: IGBridge {
private static let iGameAppScheme = "igame"
static let `default` = IGameAppURLBridge()
func bridgetoIG(from url: URL?) -> IGInstruction? {
guard let url = url else { return nil }
guard let urlComponents = URLComponents(url: url, resolvingAgainstBaseURL: true), urlComponents.scheme?.lowercased() == IGameAppURLBridge.iGameAppScheme else { return nil }
guard let host = urlComponents.host else { return nil }
let queries = makeDictionary(fromQueryItems: urlComponents.queryItems)
let components = urlComponents.path.components(separatedBy: "/").filter { !$0.isEmpty }
let instruction = IGInstruction(type: IGInstructionType(identifier: host), components: components, queryItems: queries, bridge: self)
return instruction
}
func bridgetoURL(from instruction: IGInstruction?) -> URL? {
// 转换为 URL
}
}
class HttpWebURLBridge: IGBridge {
// HttpWebURLBridge 的实现
}
class UniversalLinURLBridge: IGBridge {
// UniversalLinURLBridge 的实现
}
2.2 Instruction代码实现
“Instruction”需要包含着 URL 完整的以及需要怎样被处理. 客户端所支持的 URL 类型实际上可以用一个枚举来列出。
import Foundation
// 客户端支持的URL 类型
public enum IGInstructionType: String {
case specialExercise
case examinationPaper
case redoWrong
case collection
case myNote
case refreshQuestionSet
case unKNown
init(identifier: String?) {
guard let identifier = identifier else { self = .unKNown; return }
switch identifier {
case IGInstructionType.specialExercise.rawValue:
self = .specialExercise
case IGInstructionType.examinationPaper.rawValue:
self = .examinationPaper
case IGInstructionType.redoWrong.rawValue:
self = .redoWrong
case IGInstructionType.collection.rawValue:
self = .collection
case IGInstructionType.myNote.rawValue:
self = .myNote
case IGInstructionType.refreshQuestionSet.rawValue:
self = .refreshQuestionSet
default:
self = .unKNown
}
}
}
struct IGInstruction {
let type: IGInstructionType
let components: [String]
var path: String {
return self.components.isEmpty ? "" : ([""] + self.components).joined(separator: "/")
}
let queryItems: [String: String]
var bridge: IGBridge?
init(type: IGInstructionType, components: [String] = [], queryItems: [String: String] = [:], bridge: IGBridge? = nil ) {
self.type = type
self.components = components
self.queryItems = queryItems
self.bridge = bridge
}
}
extension IGInstruction {
// Options 下面会提到
init?(url: URL?, options: IGURLBridgeOptionsInfo = [.iGameApp]) {
if let bridge = options.iGameAppUrlBridge, let ins = bridge.bridgetoIG(from: url) {
self = ins
return
}
if let bridge = options.httpWebUrlBridge, let ins = bridge.bridgetoIG(from: url) {
self = ins
return
}
if let bridge = options.universalUrlBridge, let ins = bridge.bridgetoIG(from: url) {
self = ins
return
}
return nil
}
}
extension IGInstruction {
var url: URL? {
return self.bridge?.bridgetoURL(from: self)
}
}
2.3 Options 可选值
import Foundation
typealias IGURLBridgeOptionsInfo = [IGURLBridgeInfoItem]
enum IGURLBridgeInfoItem {
case iGameApp
case httpWeb
case universalLink
}
precedencegroup ItemComparisonPrecedence {
associativity: none
higherThan: LogicalConjunctionPrecedence
}
infix operator <== : ItemComparisonPrecedence
func <== (lhs: IGURLBridgeInfoItem, rhs: IGURLBridgeInfoItem) -> Bool {
switch (lhs, rhs) {
case (.iGameApp, .iGameApp): return true
case (.httpWeb, .httpWeb): return true
case (.universalLink, .universalLink): return true
default: return false
}
}
extension Collection where Iterator.Element == IGURLBridgeInfoItem {
func lastMatchIgnoringAssociatedValue(_ target: Iterator.Element) -> Iterator.Element? {
return reversed().first { $0 <== target }
}
func removeAllMatchesIgnoringAssociatedValue(_ target: Iterator.Element) -> [Iterator.Element] {
return filter { !($0 <== target) }
}
}
extension Collection where Iterator.Element == IGURLBridgeInfoItem {
var iGameAppUrlBridge: IGameAppURLBridge? {
if let item = lastMatchIgnoringAssociatedValue(.iGameApp),
case .iGameApp = item
{
return IGameAppURLBridge.default
}
return nil
}
var httpWebUrlBridge: HttpWebURLBridge? {
if let item = lastMatchIgnoringAssociatedValue(.httpWeb),
case .httpWeb = item
{
return HttpWebURLBridge.default
}
return nil
}
var universalUrlBridge: UniversalLinURLBridge? {
if let item = lastMatchIgnoringAssociatedValue(.universalLink),
case .universalLink = item
{
return UniversalLinURLBridge.default
}
return nil
}
}
AppDelegate实现
iOS AppDelegate 默认是一个全局的单例,因此可以将其设置为处理的入口;
@objc static let current: AppDelegate = UIApplication.shared.delegate as! AppDelegate
@discardableResult
func handleIGURL(_ url: URL, httpConvertible: Bool = true) -> Bool {
guard let instruction = IGInstruction(url: url, options: httpConvertible ? [.iGameApp, .httpWeb] : [.iGameApp]) else { return false }
return handleIGInstruction(instruction)
}
func handleIGInstruction(_ ins: IGInstruction) -> Bool {
switch ins.type {
case .specialExercise, .examinationPaper, .redoWrong, .collection, .myNote, .refreshQuestionSet:
print("handler --- \(ins.type.rawValue) 类型数据")
default:
break
}
return true
}
}![$str =asdfasdf123541[url]asdfasdf[/url]cxgew435asdfasdf; [url]asdfasdf[/url] 想把这块去掉，最好的方法是什么。](http://www.gvkun.com/zb_users/upload/2025/04/8283c97a-98e0-4c25-a283-b9a91ac6078e1745294546226.jpg "$str =asdfasdf123541[url]asdfasdf[/url]cxgew435asdfasdf; [url]asdfasdf[/url] 想把这块去掉，最好的方法是什么。")
$str =asdfasdf123541[url]asdfasdf[/url]cxgew435asdfasdf; [url]asdfasdf[/url] 想把这块去掉，最好的方法是什么。
[url]asdfasdf[/url] 想把这块去掉，最好的方法是什么。
502 Bad Gateway - Registered endpoint failed to handle the request
2017-08-07
Greeting from China! I have one question regarding error message “” in SAP cloud platform where I would like to consume an OData service from SAP cloud for customer ( C4C system).
I have a nodejs application where I hard code an end point to an OData service in C4C system. The request is sent to C4C and then I display the result in nodejs console.
The end point for C4C OData service:
https://qxl.dev.sapbydesign.com/sap/byd/odata/v1/opportunity/OpportunityCollection(‘00163E06551B1EE79E9E69D7F8FBCDCF’)
When I test this application locally, it works perfect.
var sURL = "https://qxl-cust233.dev.sapbydesign.com/sap/byd/odata/v1/opportunity/OpportunityCollection(''00163E06551B1EE79E9E69D7F8FBCDCF'')";
var username = ''WANGJER''
var password = ''Saptest1''
var options = {
url: sURL,
auth: {
user: username,
password: password
},
headers: {
''Accept'': ''application/json'',
''Content-Type'': ''application/json''
}
};
request(options, function (error, response, body) {
// console.log(''body:'', body);
var opportunity = JSON.parse(body);
var line1 = "Opportunity name: " + opportunity.d.results.Name;
console.log(line1);
var line2 = "Responsible: " + opportunity.d.results.MainEmployeeResponsiblePartyName;
console.log(line2);
var line3 = "Opportunity id: " + opportunity.d.results.ObjectID;
console.log(line3);
var responseText = line1 + "\n" + line2 + "\n" + line3;
res.send(responseText);
res.send("another line"); // this line will cause error - repeated send response is not allowed
});
After I upload it to Cloudfoundry@SCP, it fails to work: I set breakpoint in C4C system and found that the request sent from SCP NEVER reaches C4C system. After some times, SCP received error message “502 Bad Gateway - Registered endpoint failed to handle the request”.
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Android Handle 主线程向子线程发送数据
通常情况下，使用 Handler 是子线程向主线程发送数据，今天复习 Handler，思考怎么主线程向子线程发送数据，进过测试没有问题。
import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Looper;
import android.os.Message;
import android.util.Log;
import android.view.View;
/**
* 主线程向子线程发送数据
* @author gavin
*
*/
public class MainActivity extends Activity {
private Handler handler;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//开启子线程
new connectThread().start();
}
public void sendMessage(View v){
if(handler!=null){
Message msg =Message.obtain();
msg.obj ="来着主线程的数据";
handler.sendMessage(msg);
}
}
//子线程
class connectThread extends Thread{
@Override
public void run() {
//1.创建Looper对象
Looper.prepare();
//2.实例化Handler
handler =new Handler(){
public void handleMessage(Message msg) {
//接受主线程发送过来的消息
super.handleMessage(msg);
String info =(String) msg.obj;
Log.i("---", info);
};
};
//3.循环读取MessageQueue
Looper.loop();
}
}
}
Android 模糊搜索rawquery bind or column index out of range: handle 0x2fb180 报错
做模糊搜索时，出现了 bind or column index out of range: handle 0x2fb180 报错public Cursor getTitle(String word) throws SQLException{
String sql = "select * from contentinfo1 where title =? ";
Cursor cursor = db.rawQuery(sql, new String[] {word});
return cursor;
｝实现精确匹配后，依葫芦画瓢的想制作模糊搜索，套用了SQL语句，不料出错
public Cursor getTitle(String word) throws SQLException{
String sql = "select * from contentinfo1 where title like ''%"+word+"%''";
Cursor cursor = db.rawQuery(sql, new String[] {word});
return cursor;
｝解决方法：
public Cursor getTitle(String word) throws SQLException{
String sql = "select * from contentinfo1 where title like ''%"+word+"%''";
Cursor cursor = db.rawQuery(sql,null);
return cursor;
｝原因：更改语句之后用了+word+而非占位符 ？， 所以rawQuery第二个参数不知道和哪个对应故出现报错
进一步修改方案可以参照
http://stackoverflow.com/questions/5716543/android-sqliteexception-bind-or-column-index-out-of-range-problem
需要将第二个rawquery参数更改为NULL
今天关于URL Handle in Swift (一) -- URL 分解和url拆解的介绍到此结束，谢谢您的阅读，有关$str =asdfasdf123541[url]asdfasdf[/url]cxgew435asdfasdf; [url]asdfasdf[/url] 想把这块去掉，最好的方法是什么。、502 Bad Gateway - Registered endpoint failed to handle the request、Android Handle 主线程向子线程发送数据、Android 模糊搜索rawquery bind or column index out of range: handle 0x2fb180 报错等更多相关知识的信息可以在本站进行查询。
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