android使用appache httpclient混淆后错误排除总结

来源：互联网发布：维旺迪收购育碧知乎编辑：程序博客网时间：2024/05/22 05:22

android上使用appache httpclient上传文件时报一下错误：

11-20 12:49:59.572 7360-22466/com.cn21.ecloud D/d: org.apache.http.client.ClientProtocolException11-20 12:49:59.572 7360-22466/com.cn21.ecloud D/d:     at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:756)11-20 12:49:59.572 7360-22466/com.cn21.ecloud D/d:     at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:519)11-20 12:49:59.572 7360-22466/com.cn21.ecloud D/d:     at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:497)11-20 12:49:59.572 7360-22466/com.cn21.ecloud D/d:     at com.cloudapm.agent.android.instrumentation.HttpInstrumentation.execute(SourceFile:188)11-20 12:49:59.572 7360-22466/com.cn21.ecloud D/d:     at com.cn21.ecloud.netapi.a.m.a(SourceFile:130)11-20 12:49:59.572 7360-22466/com.cn21.ecloud D/d:     at com.cn21.ecloud.f.j.dY(SourceFile:160)11-20 12:49:59.572 7360-22466/com.cn21.ecloud D/d:     at com.cn21.android.b.e.dX(SourceFile:52)11-20 12:49:59.572 7360-22466/com.cn21.ecloud D/d:     at com.cn21.android.b.d.run(SourceFile:459)11-20 12:49:59.572 7360-22466/com.cn21.ecloud D/d:     at com.cn21.android.b.b.dS(SourceFile:316)11-20 12:49:59.572 7360-22466/com.cn21.ecloud D/d:     at com.cn21.android.b.b.a(SourceFile:14)11-20 12:49:59.572 7360-22466/com.cn21.ecloud D/d:     at com.cn21.android.b.c.run(SourceFile:62)11-20 12:49:59.572 7360-22466/com.cn21.ecloud D/d:     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)11-20 12:49:59.572 7360-22466/com.cn21.ecloud D/d:     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)11-20 12:49:59.572 7360-22466/com.cn21.ecloud D/d:     at java.lang.Thread.run(Thread.java:864)11-20 12:49:59.572 7360-22466/com.cn21.ecloud D/d:  Caused by: org.apache.http.client.NonRepeatableRequestException: Cannot retry request with a non-repeatable request entity11-20 12:49:59.572 7360-22466/com.cn21.ecloud D/d:     at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:427)11-20 12:49:59.572 7360-22466/com.cn21.ecloud D/d:     at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:754)11-20 12:49:59.572 7360-22466/com.cn21.ecloud D/d:     at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:519)?11-20 12:49:59.572 7360-22466/com.cn21.ecloud D/d:     at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:497)?11-20 12:49:59.572 7360-22466/com.cn21.ecloud D/d:     at com.cloudapm.agent.android.instrumentation.HttpInstrumentation.execute(SourceFile:188)?11-20 12:49:59.572 7360-22466/com.cn21.ecloud D/d:     at com.cn21.ecloud.netapi.a.m.a(SourceFile:130)?11-20 12:49:59.572 7360-22466/com.cn21.ecloud D/d:     at com.cn21.ecloud.f.j.dY(SourceFile:160)?11-20 12:49:59.572 7360-22466/com.cn21.ecloud D/d:     at com.cn21.android.b.e.dX(SourceFile:52)?11-20 12:49:59.572 7360-22466/com.cn21.ecloud D/d:     at com.cn21.android.b.d.run(SourceFile:459)?11-20 12:49:59.572 7360-22466/com.cn21.ecloud D/d:     at com.cn21.android.b.b.dS(SourceFile:316)?11-20 12:49:59.572 7360-22466/com.cn21.ecloud D/d:     at com.cn21.android.b.b.a(SourceFile:14)?11-20 12:49:59.572 7360-22466/com.cn21.ecloud D/d:     at com.cn21.android.b.c.run(SourceFile:62)?

代码如下

RandomAccessFile file = new RandomAccessFile(localFile, "r");// 仅上传未完成的文件内容file.seek(status._size);InternalFileStream fs = new InternalFileStream(new FileInputStream(file.getFD()), status._size, observer);InputStreamEntity entity = new InputStreamEntity(fs, fileLength- status._size);request.setEntity(entity);DLog.d(TAG,"entity is repeatable ? = " + entity.isRepeatable());DLog.write2File(TAG, "entity is repeatable ? = " + entity.isRepeatable(), DLog.LOG_PATH_TRANSFER);if(ConstantConfig.DEBUG){dumpRequest(request, null);}try {HttpResponse response = mHttpClient.execute(request);

InternalFileStream是继承FilterInputStream类，实现进度得回调；

问题的表现：在混淆中，上传文件时就会报这个问题；不混淆则一直没有没有问题；

解决：

1.一开始被这个问题领向错误的方向；因为是混淆出问题，不混淆则一直没问题，所以在查混淆是否导致问题这个方向上：到最后添加了所有的类都不混淆的也不能解决问题

-keep class **{*;}

2.查看错误的log：貌似是NonRepeatableRequestException是不可重读的问题，

用filebody不好替换；

3.用HttpURLConnection替换http client，最后报错如下：

11-25 18:17:41.783 26180-26378/com.cn21.ecloud D/e: Release UploadService:com.cn21.ecloud.netapi.a.m@2481714511-25 18:17:41.783 26180-26378/com.cn21.ecloud D/d: Transfer Ex                                                     java.io.IOException: File descriptor closed                                                        at libcore.io.Posix.readBytes(Native Method)                                                        at libcore.io.Posix.read(Posix.java:147)                                                        at libcore.io.BlockGuardOs.read(BlockGuardOs.java:230)                                                        at libcore.io.IoBridge.read(IoBridge.java:472)                                                        at java.io.FileInputStream.read(FileInputStream.java:177)                                                        at java.io.DataInputStream.read(DataInputStream.java:63)                                                        at java.io.InputStream.read(InputStream.java:162)                                                        at java.io.DataInputStream.read(DataInputStream.java:59)                                                        at com.cn21.ecloud.netapi.a.m.a(SourceFile:145)                                                        at com.cn21.ecloud.f.j.dY(SourceFile:160)                                                        at com.cn21.android.b.e.dX(SourceFile:52)                                                        at com.cn21.android.b.d.run(SourceFile:459)                                                        at com.cn21.android.b.b.dS(SourceFile:316)                                                        at com.cn21.android.b.b.a(SourceFile:14)                                                        at com.cn21.android.b.c.run(SourceFile:62)                                                        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)                                                        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)                                                        at java.lang.Thread.run(Thread.java:818)11-25 18:17:41.783 26180-26378/com.cn21.ecloud D/transferLoop: Transfer task:20151124_111841.mp4 stopped

报文件无效问题；

检查文件的读方面发现有个getFD()，获取文件的通道；进入FileInputStream这个类构造方法去发现这个stream流需要手动关闭：

    /**     * Constructs a new {@code FileInputStream} that reads from {@code fd}.     *     * @param fd     *            the FileDescriptor from which this stream reads.     * @throws NullPointerException     *             if {@code fd} is {@code null}.     */    public FileInputStream(FileDescriptor fd) {        if (fd == null) {            throw new NullPointerException("fd == null");        }        this.fd = fd;        this.shouldClose = false;        // Note that we do not call guard.open here because the        // FileDescriptor is not owned by the stream.    }

this.shouldClose = false;这个问题有点大，因此需要最后文件上传完再finally中关闭之前用RandomAccessFile打开的文件的句柄。

但是这个问题有点怪异，为什么不混淆时就不会出问题？而在混淆过后才能爆出这个问题？

总结：

最终问题的表面现在也许不是问题发生的根本原因；因为最后表现出来的问题可能是上一个问题引发的；因此需要往前面走点查查。

0 0