HttpResponse response = client.execute(httpGet)
本帖最后由 long420922 于 2013-08-24 16:32:30 编辑

String readTwitterFeed = ReadJSON("http://www.ishuaji.net/android.php");
//read json
public String ReadJSON(String url){
StringBuilder builder = new StringBuilder();
DefaultHttpClient client = new DefaultHttpClient();
HttpGet httpGet = new HttpGet(url);

try{
HttpResponse response = client.execute(httpGet);
StatusLine statusLine = response.getStatusLine();
int statusCode = statusLine.getStatusCode();
if(statusCode == 200){
HttpEntity entity = response.getEntity();
InputStream content = entity.getContent();
BufferedReader reader = new BufferedReader(new InputStreamReader(content));
String line;
while((line = reader.readLine()) != null){
builder.append(line);
}
} else {
//Log.e(ParseJSON.class.toString(), "Failed to Download File");
}
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}

return builder.toString();
}

只要执行到红色部分HttpResponse response = client.execute(httpGet)，就现在运行终止，请大家帮我看一下，谢谢。
mainfest.xml中添加了<uses-permission android:name="android.permission.INTERNET"/>
[解决办法]
代码本身没问题，你是不是没有放到线程中去执行，主线程不能执行这种耗时的操作，应该用异步的方法，比如

 new Thread(){
        @Override
        public void run(){
        String readTwitterFeed = ReadJSON("http://www.ishuaji.net/android.php");
        }
        }.start();

[解决办法]
像网络操作等耗时操作，都需要另外开一个线程，不然应该会报android.os.NetworkOnMainThreadException,

你看看有没有这个错误提醒，如果有就是你把网络写在主线程里面了。