NetworkOnMainThreadException

Question

试图读取和解析我的应用程序中的一些json数据。我实现了解析器类扩展的AsyncTask如下：

public class JSONParser extends AsyncTask<Void, Void, String> { 
    private String strUrl; 
    private List<NameValuePair> params; 
    private String result; 
    private String response; 
    public static final String RESULT_SUCCESS = "success"; 
    public static final String RESULT_FAILED = "failed"; 

    public JSONParser(String strUrl, List<NameValuePair> params) { 
     this.strUrl = strUrl; 
     this.params = params; 
    } 

    private void parse() { 
     try { 
      // Create a new HttpClient and Post Header 
      HttpClient httpclient = new DefaultHttpClient(); 
      HttpPost httppost = new HttpPost(strUrl); 

      // Add parameters 
      if (params != null) { 
       httppost.setEntity(new UrlEncodedFormEntity(params)); 
      } 

      // Execute HTTP Post Request 
      HttpResponse httpResponse = httpclient.execute(httppost); 

      // return by response 
      result = RESULT_SUCCESS; 
      this.response = EntityUtils.toString(httpResponse.getEntity(), "UTF-8"); 

     } catch (Exception e) { 
      result = RESULT_FAILED; 
      this.response = null; 
      e.printStackTrace(); 
     } 
    } 

    @Override 
    public String doInBackground(Void... params) { 
     parse(); 
     return response; 
    } 

    public String getResult() { 
     return result; 
    } 

    public String getResponse() { 
     return response; 
    } 
} 

它运作良好，在以后的Android版本，但不幸的是它抛出旧版本NetworkOnMainThreadException。 我搜索了，发现我应该在我的应用程序中使用严格模式，但线程的性能变得非常糟糕！当我点击解析按钮时，它会冻结！ 你能帮助我更好的解决方案吗？

Answer 1

打电话给你这样的班级，它会解决你的问题！

new JSONParser().execute();