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) 

按照logcat的这是代码的一部分，其中有一个错误： 我试图从服务器获取图像的URL，然后将它们下载

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

EOFException意味着文件结束（EOF）异常。 EOF用于指示文件的结尾。通常情况下，如果您想读取文件直到最后您执行一段时间的操作，但条件EOF尚未达到。

它有点类似于字符串结尾的'/ 0'。 EOF代替用于标记文件的末尾

你可能会试图读取该文件EOF已达到后，将导致异常被引发

Answer 2

尝试从这个Android HttpsUrlConnection eofexception

看起来你需要add

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