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关于在HttpURLConnection中设置setChunkedStreamingMode无法将数据传递给服务器和在使用url传值时传输的数据只能是的问题就给大家分享到这里，感谢你花时间阅读本站内容，更多关于Android HttpUrlConnection getInputStream引发NullPointerException、Android HttpURLConnection Post ChunkedStreamMode 上传大文件、Android HttpURLConnection.getResponseCode()错误解决方法、android – HTTPURLConnection – 使用FixedLengthStreamingMode的大文件POST多部分/表单数据等相关知识的信息别忘了在本站进行查找喔。
本文目录一览：- 在HttpURLConnection中设置setChunkedStreamingMode无法将数据传递给服务器（在使用url传值时传输的数据只能是）
- Android HttpUrlConnection getInputStream引发NullPointerException
- Android HttpURLConnection Post ChunkedStreamMode 上传大文件
- Android HttpURLConnection.getResponseCode()错误解决方法
- android – HTTPURLConnection – 使用FixedLengthStreamingMode的大文件POST多部分/表单数据
在HttpURLConnection中设置setChunkedStreamingMode无法将数据传递给服务器（在使用url传值时传输的数据只能是）
我的服务器版本如下我的开发机器上：
Apache / 2.2.21（Win32）mod_fcgid / 2.3.6
我一直在testingHttpURLConnection因为我的项目需要简单的stream媒体function。 我已经阅读了@BalusC关于如何使用这个类的大概介绍。
使用java.net.URLConnection来触发和处理HTTP请求
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我在哪里可以find一个很好的教程，开始使用Cocos2D-x编程？
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我目前遇到的麻烦是设置setChunkedStreamingMode 。 无论我设置到我的stream似乎并没有使服务器的数据stream是空的，当我的服务器API方法/连接被调用/作出。 但是，如果我删除它，它工作正常。
我见过另一个有类似问题的人：
Java / Android HttpURLConnection setChunkedStreamingMode不适用于所有PHP服务器
但没有真正的解决办法。 我无法简单地将它设置为setFixedLengthStreamingMode因为内容（json）的长度是可变的。
这不好。 我可能会传输大量的数据，因此不能将数据存储在内存中。
我的问题是，我怎样才能setChunkedStreamingMode发挥好？ 这是服务器设置问题，还是可以在代码中解决？
编辑我已经testing了我的生产服务器上的代码，它没有任何问题。 但是我仍然想知道为什么我的本地机器上的Apache服务器失败。 任何帮助仍然非常感激。
Android支持虚拟内存吗？
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Android Studio + DDMS错误“推送select失败：只读文件系统”
从Android应用程序与服务器进行通信时出现各种HTTP错误
Android NDK套接字连接问题
尝试添加这个HTTP头：
urlConnection.setRequestHeader("transfer-encoding","chunked");
我有这样的问题：虽然我已经设置了分块的HTTP流模式（urlConnection.setChunkedStreamingMode（0）），它没有工作，但把HTTP头上面的工作正常。
我有一个类似的问题。 在我的情况下，它是安装了病毒扫描器的客户端系统。 这些扫描器有时会有拦截POST的身份盗用模块，扫描身体然后将其传递。
在传递给我之前， BitDefender缓存了大约5MB。
如果整个有效负载小于POST则以非分块固定长度请求的形式交付。
我有一个类似的问题使用HttpURLConnection 。 只需添加：
conn.setRequestProperty("connection","close"); // disables Keep Alive
到您的连接或禁用所有连接：
System.setProperty("http.keepAlive","false");
从关于disconnect（）的API：
释放此连接，以便其资源可以重用或关闭。 与其他Java实现不同，这不一定会关闭可以重用的套接字连接。 您可以通过在发出任何HTTP请求之前将http.keepAlive系统属性设置为false来禁用所有连接重用。
总结
以上是小编为你收集整理的在HttpURLConnection中设置setChunkedStreamingMode无法将数据传递给服务器全部内容。
如果觉得小编网站内容还不错，欢迎将小编网站推荐给好友。
Android HttpUrlConnection getInputStream引发NullPointerException
我正在尝试从以下网址下载图像：
https://hme_player_pictures.s3.amazonaws.com/test-512813ed3b83286c72f376c7-thumb100.jpg
这是堆栈跟踪：
03-21 12:58:04.040: W/System.err(7084): java.lang.NullPointerException
03-21 12:58:04.040: W/System.err(7084): at libcore.net.http.httpconnection$Address.hashCode(httpconnection.java:343)
03-21 12:58:04.045: W/System.err(7084): at java.util.HashMap.get(HashMap.java:298)
03-21 12:58:04.050: W/System.err(7084): at libcore.net.http.httpconnectionPool.get(httpconnectionPool.java:67)
03-21 12:58:04.050: W/System.err(7084): at libcore.net.http.httpconnection.connect(httpconnection.java:128)
03-21 12:58:04.050: W/System.err(7084): at libcore.net.http.HttpEngine.openSocketConnection(HttpEngine.java:308)
03-21 12:58:04.055: W/System.err(7084): at libcore.net.http.HttpsURLConnectionImpl$HttpsEngine.makeSslConnection(HttpsURLConnectionImpl.java:460)
03-21 12:58:04.055: W/System.err(7084): at libcore.net.http.HttpsURLConnectionImpl$HttpsEngine.connect(HttpsURLConnectionImpl.java:432)
03-21 12:58:04.055: W/System.err(7084): at libcore.net.http.HttpEngine.sendSocketRequest(HttpEngine.java:282)
03-21 12:58:04.060: W/System.err(7084): at libcore.net.http.HttpEngine.sendRequest(HttpEngine.java:232)
03-21 12:58:04.065: W/System.err(7084): at libcore.net.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:273)
03-21 12:58:04.065: W/System.err(7084): at libcore.net.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:168)
03-21 12:58:04.070: W/System.err(7084): at libcore.net.http.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:270)
03-21 12:58:04.070: W/System.err(7084): ...
码：
URL imageUrl = new URL(url);
HttpURLConnection c = (HttpURLConnection)imageUrl.openConnection();
InputStream in = c.getInputStream(); // Nullpointer exception on this line, c is definitely not null, I debugged
无法弄清楚为什么会引发NullPointerException.上面的网址确实可以在浏览器中使用.
解决方法:
对于它的价值,我在Android HTTP库中看到很多错误.从条码扫描器中,我可以看到大约3500万人员的堆栈跟踪,因此,我想我已经看到了其中的一切.这是我们在下面的应用程序中发现并吞下的所有怪异内容.我建议您将其作为平台错误来解决,并优雅地失败.
https://code.google.com/p/zxing/source/browse/trunk/android/src/com/google/zxing/client/android/HttpHelper.java
private static int safelyConnect(String uri, HttpURLConnection connection) throws IOException {
try {
connection.connect();
} catch (NullPointerException npe) {
// this is an Android bug: http://code.google.com/p/android/issues/detail?id=16895
Log.w(TAG, "Bad URI? " + uri);
throw new IOException(npe.toString());
} catch (IllegalArgumentException iae) {
// Also seen this in the wild, not sure what to make of it. Probably a bad URL
Log.w(TAG, "Bad URI? " + uri);
throw new IOException(iae.toString());
} catch (SecurityException se) {
// due to bad VPN settings?
Log.w(TAG, "Restricted URI? " + uri);
throw new IOException(se.toString());
} catch (indexoutofboundsexception ioobe) {
// Another Android problem? https://groups.google.com/forum/?fromgroups#!topic/google-admob-ads-sdk/U-WfmYa9or0
Log.w(TAG, "Bad URI? " + uri);
throw new IOException(ioobe.toString());
}
try {
return connection.getResponseCode();
} catch (NullPointerException npe) {
// this is maybe this Android bug: http://code.google.com/p/android/issues/detail?id=15554
Log.w(TAG, "Bad URI? " + uri);
throw new IOException(npe.toString());
} catch (NumberFormatException nfe) {
// Again seen this in the wild for bad header fields in the server response!
Log.w(TAG, "Bad server status? " + uri);
throw new IOException(nfe.toString());
}
}
Android HttpURLConnection Post ChunkedStreamMode 上传大文件
Android HttpURLConnection.getResponseCode()错误解决方法
导语：个人对网络连接接触的不多，在使用时自己发现一些问题，记录一下。正文：我在使用HttpURLConnection.getResponseCode()的时候直接报错是IOException错误，responseCode = -1。一直想不明白，同一个程序我调用了两次，结果有一个链接一直OK，另一个却一直报这个错误。后来发现两个链接的区别，有一个返回的内容是空的，所以导致了这个错误。
解决方法：
方法1、网页返回内容不能是空；
方法2、不要用这个接口咯。
android – HTTPURLConnection – 使用FixedLengthStreamingMode的大文件POST多部分/表单数据
public void createImagePostWithToken(String accesstoken,String text,String type,String imagePath) {
URL imageUrl = null;
String lineEnd = "\r\n";
String twoHyphens = "--";
// generating byte[] boundary here
HttpURLConnection conn = null;
DataOutputStream outputStream = null;
DataInputStream inputStream = null;
int bytesRead,bytesAvailable,bufferSize;
byte[] buffer;
int maxBufferSize = 1*1024*1024;
try
{
long contentLength;
int serverResponseCode;
String serverResponseMessage;
File file = new File(imagePath);
FileInputStream fileInputStream = new FileInputStream(file);
imageUrl = buildUri("posts").toURL();
conn = (HttpURLConnection)imageUrl.openConnection();
conn.setConnectTimeout(30000);
conn.setReadTimeout(30000);
conn.setDoOutput(true);
conn.setDoInput(true);
conn.setRequestMethod("POST");
conn.setRequestProperty("Content-Type","multipart/form-data;boundary=" + boundary);
String stringForLength = new String();
stringForLength += "Content-Type: multipart/form-data;boundary=" + boundary;
stringForLength += twoHyphens + boundary + lineEnd + "Content-disposition: form-data; name=\"access_token\"" + lineEnd;
stringForLength += "Content-Type: text/plain;charset=UTF-8" + lineEnd + "Content-Length: " + accesstoken.length() + lineEnd + lineEnd;
stringForLength += accesstoken + lineEnd + twoHyphens + boundary + lineEnd;
stringForLength += "Content-disposition: form-data; name=\"text\"" + lineEnd;
stringForLength += "Content-Type: text/plain;charset=UTF-8" + lineEnd + "Content-Length: " + text.length() + lineEnd + lineEnd;
stringForLength += text + lineEnd + twoHyphens + boundary + lineEnd;
stringForLength += "Content-disposition: form-data; name=\"type\"" + lineEnd;
stringForLength += "Content-Type: text/plain;charset=UTF-8" + lineEnd + "Content-Length: " + type.length() + lineEnd + lineEnd;
stringForLength += type + lineEnd + twoHyphens + boundary + lineEnd;
stringForLength += twoHyphens + boundary + lineEnd + "Content-disposition: form-data; name=\"image\"" + lineEnd;
stringForLength += "Content-Type: application/octet-stream" + lineEnd + "Content-Length: " + file.length() + lineEnd + lineEnd;
stringForLength += lineEnd + twoHyphens + boundary + twoHyphens + lineEnd;
int totalLength = stringForLength.length() + (int)file.length();
conn.setFixedLengthStreamingMode(totalLength);
outputStream = new DataOutputStream( conn.getoutputStream() );
outputStream.writeBytes(twoHyphens + boundary + lineEnd);
// access token
outputStream.writeBytes("Content-disposition: form-data; name=\"access_token\"" + lineEnd);
outputStream.writeBytes("Content-Type: text/plain;charset=UTF-8" + lineEnd);
outputStream.writeBytes("Content-Length: " + accesstoken.length() + lineEnd);
outputStream.writeBytes(lineEnd);
outputStream.writeBytes(accesstoken + lineEnd);
outputStream.writeBytes(twoHyphens + boundary + lineEnd);
// text
outputStream.writeBytes("Content-disposition: form-data; name=\"text\"" + lineEnd);
outputStream.writeBytes("Content-Type: text/plain;charset=UTF-8" + lineEnd);
outputStream.writeBytes("Content-Length: " + text.length() + lineEnd);
outputStream.writeBytes(lineEnd);
outputStream.writeBytes(text + lineEnd);
outputStream.writeBytes(twoHyphens + boundary + lineEnd);
// type
outputStream.writeBytes("Content-disposition: form-data; name=\"type\"" + lineEnd);
outputStream.writeBytes("Content-Type: text/plain;charset=UTF-8" + lineEnd);
outputStream.writeBytes("Content-Length: " + type.length() + lineEnd);
outputStream.writeBytes(lineEnd);
outputStream.writeBytes(type + lineEnd);
outputStream.writeBytes(twoHyphens + boundary + lineEnd);
// image
outputStream.writeBytes(twoHyphens + boundary + lineEnd);
outputStream.writeBytes("Content-disposition: form-data; name=\"image\"" + lineEnd);
//outputStream.writeBytes(lineEnd);
outputStream.writeBytes("Content-Type: application/octet-stream" + lineEnd);
outputStream.writeBytes("Content-Length: " + file.length() + lineEnd);
outputStream.writeBytes(lineEnd);
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable,maxBufferSize);
buffer = new byte[bufferSize];
// Read file
bytesRead = fileInputStream.read(buffer,bufferSize);
while (bytesRead > 0)
{
outputStream.write(buffer,bufferSize);
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable,maxBufferSize);
bytesRead = fileInputStream.read(buffer,bufferSize);
}
outputStream.writeBytes(lineEnd);
outputStream.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
Log.d("posttemplate","connection outputstream size is " + outputStream.size());
// finished with POST request body
// Responses from the server (code and message)
serverResponseCode = conn.getResponseCode();
serverResponseMessage = conn.getResponseMessage();
Log.d("posttemplate","server response code "+ serverResponseCode);
Log.d("posttemplate","server response message "+ serverResponseMessage);
fileInputStream.close();
conn.disconnect();
outputStream.flush();
outputStream.close();
} catch (MalformedURLException e)
{
Log.d("posttemplate","malformed url",e);
//Todo: catch exception;
} catch (IOException e)
{
Log.d("posttemplate","ioexception",e);
//Todo: catch exception
}
}
不幸的是,我的应用程序在outputStream.close()时崩溃了IOException,我不明白为什么：
03-16 13:56:51.035: D/posttemplate(6479): java.io.IOException: unexpected end of stream 03-16 13:56:51.035: D/posttemplate(6479): at org.apache.harmony.luni.internal.net.www.protocol.http.FixedLengthOutputStream.close(FixedLengthOutputStream.java:57) 03-16 13:56:51.035: D/posttemplate(6479): at java.io.FilterOutputStream.close(FilterOutputStream.java:66) 03-16 13:56:51.035: D/posttemplate(6479): at com.futubra.api.impl.PostTemplate.createImagePostWithToken(PostTemplate.java:282) 03-16 13:56:51.035: D/posttemplate(6479): at com.futubra.FutubraNewPostActivity.createPost(FutubraNewPostActivity.java:128) 03-16 13:56:51.035: D/posttemplate(6479): at com.futubra.FutubraNewPostActivity_.access$2(FutubraNewPostActivity_.java:1) 03-16 13:56:51.035: D/posttemplate(6479): at com.futubra.FutubraNewPostActivity_$5.run(FutubraNewPostActivity_.java:141) 03-16 13:56:51.035: D/posttemplate(6479): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088) 03-16 13:56:51.035: D/posttemplate(6479): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581) 03-16 13:56:51.035: D/posttemplate(6479): at java.lang.Thread.run(Thread.java:1019)
解决方法
我们今天的关于在HttpURLConnection中设置setChunkedStreamingMode无法将数据传递给服务器和在使用url传值时传输的数据只能是的分享已经告一段落，感谢您的关注，如果您想了解更多关于Android HttpUrlConnection getInputStream引发NullPointerException、Android HttpURLConnection Post ChunkedStreamMode 上传大文件、Android HttpURLConnection.getResponseCode()错误解决方法、android – HTTPURLConnection – 使用FixedLengthStreamingMode的大文件POST多部分/表单数据的相关信息，请在本站查询。
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