在android中发送两个请求到php

时间:2014-09-15 21:51:18

标签: java android

我有这个代码,当我点击一个按钮时这个函数运行但是这个函数向php发送了两个请求并且php在数据库中保存了两个记录......?

public void send()
{
    //get message from message box
    final String  msg = msgTextField.getText().toString();
    InputStream is = null;
    StringBuilder sb = null;
    String result = null;
    //check whether the msg empty or not
    StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
    StrictMode.setThreadPolicy(policy); 
    if(msg.length() > 0) {
        try {
            HttpClient httpclient = new DefaultHttpClient();
            HttpPost httppost = new HttpPost("URL");
            httppost.setHeader("Content-Type", "application/x-www-form-urlencoded;charset=UTF-8");
            List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
            nameValuePairs.add(new BasicNameValuePair("Type", "MSG"));
            nameValuePairs.add(new BasicNameValuePair("Message", msg));
            httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
            httpclient.execute(httppost);
            HttpResponse response = httpclient.execute(httppost);
            HttpEntity entity = response.getEntity();
            is = entity.getContent();
        } catch (Exception e) {
            Log.e("log_tag", "Error in http connection" + e.toString());
        }
        try {
            BufferedReader reader = new BufferedReader(new InputStreamReader(is, "UTF-8"), 8);
            sb = new StringBuilder();
            sb.append(reader.readLine());
            String line = "0";
            while ((line = reader.readLine()) != null) {
                sb.append(line);
            }
            is.close();
            result = sb.toString();
            LinearLayout Lay = (LinearLayout)findViewById(R.id.MSGes);
            TextView MyView = new TextView(this);
            MyView.setLayoutParams(new ViewGroup.LayoutParams(
                    ViewGroup.LayoutParams.WRAP_CONTENT,
                    ViewGroup.LayoutParams.WRAP_CONTENT));
            MyView.setText(msg);
            MyView.setId(Integer.valueOf(result.toString()));
            Lay.addView(MyView);

            } catch (Exception e) {
                Log.e("log_tag", "Error converting result " + e.toString());
            } 

    } else {
        Toast.makeText(getBaseContext(),"Empty",Toast.LENGTH_SHORT).show();
    }

和logcat:

09-15 17:50:32.328:W / SingleClientConnManager(3651):无效使用SingleClientConnManager:仍然分配了连接。 09-15 17:50:32.328:W / SingleClientConnManager(3651):确保在分配另一个连接之前释放连接。 09-15 17:50:32.758:E / log_tag(3651):转换结果时出错java.lang.ArrayIndexOutOfBoundsException:length = 1;索引= 1 09-15 17:50:35.188:W / SingleClientConnManager(3651):无效使用SingleClientConnManager:仍然分配了连接。 09-15 17:50:35.188:W / SingleClientConnManager(3651):确保在分配另一个连接之前释放连接。 09-15 17:50:38.168:W / SingleClientConnManager(3651):无效使用SingleClientConnManager:仍然分配了连接。 09-15 17:50:38.168:W / SingleClientConnManager(3651):确保在分配另一个连接之前释放连接。 09-15 17:50:38.538:E / log_tag(3651):转换结果时出错java.lang.ArrayIndexOutOfBoundsException:length = 1;索引= 1

2 个答案:

答案 0 :(得分:0)

您应该关注的错误是

  

E / log_tag(3651):转换结果时出错java.lang.ArrayIndexOutOfBoundsException:length = 1;索引= 1

您需要确定为什么在您期望更多时,列表中只有一个元素。我建议您打印出堆栈跟踪以便追踪问题。

更好的是,捕获特定的异常而不是每个异常。 catch (Exception e)被认为是一种不好的做法,因为您可能会在代码中压制严重错误。

答案 1 :(得分:0)

我认为你在这里犯了错字:

httpclient.execute(httppost);
HttpResponse response = httpclient.execute(httppost);

排除第一行,你应该没事。