java.io.eofexception

Question

这个错误是什么意思？

下面是我的logcat输出：

01-23 17:09:29.120: W/System.err(24339): java.io.EOFException
01-23 17:09:29.120: W/System.err(24339):    at libcore.io.Streams.readAsciiLine(Streams.java:203)
01-23 17:09:29.120: W/System.err(24339):    at libcore.net.http.HttpEngine.readResponseHeaders(HttpEngine.java:544)
01-23 17:09:29.120: W/System.err(24339):    at libcore.net.http.HttpEngine.readResponse(HttpEngine.java:784)
01-23 17:09:29.120: W/System.err(24339):    at libcore.net.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:274)
01-23 17:09:29.120: W/System.err(24339):    at libcore.net.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:168)
01-23 17:09:29.130: W/System.err(24339):    at libcore.net.http.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:270)
01-23 17:09:29.130: W/System.err(24339):    at com.sfcca.coverflow.Store$downloadMagazine.doInBackground(Store.java:881)
01-23 17:09:29.130: W/System.err(24339):    at com.sfcca.coverflow.Store$downloadMagazine.doInBackground(Store.java:1)
01-23 17:09:29.130: W/System.err(24339):    at android.os.AsyncTask$2.call(AsyncTask.java:264)
01-23 17:09:29.130: W/System.err(24339):    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
01-23 17:09:29.130: W/System.err(24339):    at java.util.concurrent.FutureTask.run(FutureTask.java:137)
01-23 17:09:29.130: W/System.err(24339):    at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:208)
01-23 17:09:29.130: W/System.err(24339):    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
01-23 17:09:29.130: W/System.err(24339):    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
01-23 17:09:29.130: W/System.err(24339):    at java.lang.Thread.run(Thread.java:856)

根据logcat，这是代码的一部分，有一个错误:我试图从服务器检索图像url，然后下载它们

try {
                    HttpURLConnection conn = (HttpURLConnection) myFileUrl.openConnection();
                    conn.setDoInput(true);
                    conn.connect();
                    InputStream in = conn.getInputStream();
                    Log.i("im connected", "Download");
                    bmImg = BitmapFactory.decodeStream(in);

                    File filename;
                    try {
                         // GET EXTERNAL STORAGE, SAVE FILE THERE
                        File storagePath = new File(Environment.getExternalStorageDirectory(),"/Futsing/issue"+issueNumber+"/");
                        storagePath.mkdirs();

                        filename = new File(storagePath + "/page"+number+".jpg");
                        FileOutputStream out = new FileOutputStream(filename);
                        bmImg.compress(Bitmap.CompressFormat.JPEG, 90, out);

                        out.flush();
                        out.close();
                        in.close();
                        MediaStore.Images.Media.insertImage(getContentResolver(),filename.getAbsolutePath(), filename.getName(),
                                filename.getName());          


                         // displayImage();
                    } catch (Exception e) {
                        e.printStackTrace();
                    }   
                } catch (IOException e) {
                    e.printStackTrace();
                }

Answer 1

从此Android HttpsUrlConnection eofexception尝试

看起来你需要添加

if (Build.VERSION.SDK != null && Build.VERSION.SDK_INT > 13) { urlConnect.setRequestProperty("Connection", "close"); }

Answer 2

EOFException表示文件结束异常。EOF用于指示文件的结尾。通常情况下，如果你想读完一个文件，你需要在EOF未达到的条件下执行一次while操作。

它有点类似于出现在字符串末尾的'/0‘。EOF被用来标记文件的结尾

您可能正在尝试在达到EOF之后读取文件，这将导致引发异常

Answer 3

在我的例子中，问题是我用来上传文件的网络连接。切换网络连接(连接到我的LAN wifi网络)后，一切正常。我正在我的本地服务器上测试它，并试图使用外部网络连接而不是我的LAN网络来上传文件。希望这能有所帮助。