http中get请求

package com.gjf.httpgettest;

import android.os.Handler;
import android.os.Message;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.TextView;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

public class MainActivity extends AppCompatActivity {
String result;

Handler handler = new Handler() {
/**
* Subclasses must implement this to receive messages.
*
* @param msg
*/
@Override
public void handleMessage(Message msg) {
if (msg.what==0x123){
TextView textView = (TextView) findViewById(R.id.tx);
textView.setText(result);}
}
};

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);


new Thread() {
//采用get方式访问J2EE服务器
String strUrl = "http://192.168.0.2:8080/HTTPGetTest/GetServlet?param=23333333";
URL url = null;

public void run() {
try

{
url = new URL(strUrl);
HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
InputStreamReader inputStreamReader = new InputStreamReader(httpURLConnection.getInputStream());
BufferedReader buff = new BufferedReader(inputStreamReader);
result = "";
String readLine = null;
while ((readLine = buff.readLine()) != null) {
result += readLine;

}
inputStreamReader.close();
httpURLConnection.disconnect();
handler.sendEmptyMessage(0x123);

} catch (
Exception e
)

{
e.printStackTrace();
}
}

;
}.start();
}
}
这是GET安卓端的代码