Org. json. JSONException: Endofinputatcharacter0of

When I wrote the code today, I also encountered the following error message: 04-0821: 55: 22.792: W/System. err (10665): org. json. JSONException: Endofinputatcharacter0of04-0821: 55: 22.802: W/System. err (10665): atorg. j...

When I wrote the code today, I also encountered the following error message:

04-08 21:55:22. 792: W/System. err (10665): org. json. JSONException: End of input at character 0
04-08 21:55:22. 802: W/System. err (10665): at org. json. JSONTokener. syntaxError (JSONTokener. java: 446)
04-08 21:55:22. 802: W/System. err (10665): at org. json. JSONTokener. nextValue (JSONTokener. java: 93)
04-08 21:55:22. 802: W/System. err (10665): at org. json. JSONArray. (JSONArray. java: 87)
04-08 21:55:22. 812: W/System. err (10665): at org. json. JSONArray. (JSONArray. java: 103)
04-08 21:55:22. 812: W/System. err (10665): at cn. jbit. service. GetNews. GetJSON (GetNews. java: 65)
04-08 21:55:22. 812: W/System. err (10665): at cn. jbit. service. GetNews. getNewsListByJSON (GetNews. java: 48)
04-08 21:55:22. 812: W/System. err (10665): at cn. jbit. news. NewsActivity. fillListView (NewsActivity. java: 29)
04-08 21:55:22. 812: W/System. err (10665): at cn. jbit. news. NewsActivity. onCreate (NewsActivity. java: 24)
04-08 21:55:22. 812: W/System. err (10665): at android. app. Instrumentation. callActivityOnCreate (Instrumentation. java: 1047)
04-08 21:55:22. 812: W/System. err (10665): at android. app. ActivityThread. initialize mlaunchactivity (ActivityThread. java: 1611)
04-08 21:55:22. 812: W/System. err (10665): at android. app. ActivityThread. handleLaunchActivity (ActivityThread. java: 1663)
04-08 21:55:22. 812: W/System. err (10665): at android. app. ActivityThread. access $1500 (ActivityThread. java: 117)
04-08 21:55:22. 822: W/System. err (10665): at android. app. ActivityThread $ H. handleMessage (ActivityThread. java: 931)
04-08 21:55:22. 822: W/System. err (10665): at android. OS. Handler. dispatchMessage (Handler. java: 99)
04-08 21:55:22. 822: W/System. err (10665): at android. OS. low.loop (low.java: 123)
04-08 21:55:22. 822: W/System. err (10665): at android. app. ActivityThread. main (ActivityThread. java: 3683)
04-08 21:55:22. 832: W/System. err (10665): at java. lang. reflect. Method. invokeNative (Native Method)
04-08 21:55:22. 832: W/System. err (10665): at java. lang. reflect. Method. invoke (Method. java: 507)
04-08 21:55:22. 832: W/System. err (10665): at com. android. internal. OS. ZygoteInit $ MethodAndArgsCaller. run (ZygoteInit. java: 839)
04-08 21:55:22. 832: W/System. err (10665): at com. android. internal. OS. ZygoteInit. main (ZygoteInit. java: 597)
04-08 21:55:22. 832: W/System. err (10665): at dalvik. system. NativeStart. main (Native Method)

Let's first translate the meaning of the error message: A JSONException is thrown at the end of the input 0 character;

Later, I found the cause of the error:

/**
* Read Stream Data
* @ Param input
* @ Return
* @ Throws Exception
*/
Public static byte [] read (InputStream input) throws Exception {
ByteArrayOutputStream out = new ByteArrayOutputStream ();
Byte [] data = new byte [1024];
Int len = 0;
While (len = input. read (data ))! =-1 ){
Out. write (data, 0, 0); // it should have been out. write (data, 0, len );
}
Out. close ();
Return out. toByteArray ();
}

After reading the above code, I think you know why I threw this exception. Then let's look at the following code:

/***
* Return JSON data from the server and parse it here
* @ Param input
* @ Return
* @ Throws Exception
*/
Private static List GetJSON (InputStream input) throws Exception {
List List = new ArrayList ();
Byte [] data = StreamTool. read (input );
String json = new String (data); // The data produced from the server is encoded as UTF-8. This is not written here.
JSONArray array = new JSONArray (json );
For (int I = 0; iJSONObject jsonObject = array. getJSONObject (I );
News news = new News ();
News. setNid (jsonObject. getInt ("id "));
News. setNauthor (jsonObject. getString ("author "));
News. setNtitle (jsonObject. getString ("title "));
List. add (news );
}
Return list;
}

I called the first read (InputStream input) method, because I accidentally typed the error code, the value returned by this method must be any byte, the parsing of JSON is certainly abnormal when the index is 0!