Android（十三）get方式登录

package com.itheima.login;

import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URL;
import java.net.URLEncoder;

import com.itheima.login.utils.StreamTool;

import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.app.Activity;
import android.text.TextUtils;
import android.view.Menu;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity {

    protected static final int SUCCESS = 0;

    protected static final int ERROR = 1;

    private  String path = "http://192.168.1.100:8080/web_login/login?";

    private EditText ed_number;
    private EditText ed_pwd;
    private TextView tv_status;
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ed_number = (EditText) findViewById(R.id.ed_number);
        ed_pwd = (EditText) findViewById(R.id.ed_pwd);
        tv_status = (TextView) findViewById(R.id.login_status);
    }

    private Handler mHandler= new Handler(){
        public void handleMessage(Message msg) {
            
            switch (msg.what) {
            case SUCCESS:
                String data = (String) msg.obj;
                tv_status.setText(data);
                break;
            case ERROR:
                Toast.makeText(MainActivity.this, "连接错误 ....", 0).show();
                break;
            default:
                break;
            }
            
        };
        
    };
    
    public void login(View v) {

        //获得 QQ号码和 密码 , 然后登录
        final String number = ed_number.getText().toString().trim();
        final String pwd = ed_pwd.getText().toString().trim();
        
        if(TextUtils.isEmpty(number)||TextUtils.isEmpty(pwd)){
            Toast.makeText(this, "号码或者密码不能为空", 0).show();
            return;
        }
        
        //如果在 发送数据的过程中, 传输了中文数据, 那么是需要进行url 编码的, 否则 带不过去
        // http://192.168.1.100:8080/web_login/login?number=%E5%93%88%E5%93%88&pwd=520itheima
        // http://192.168.1.100:8080/web_login/login?number=5201314&pwd=520itheima
        
        
        //走到这里 , 则说明 qq号码和密码 都输入了 ,然后 需要去连接 网络 
        new Thread(){
            
            public void run() {
                
                try {
                    path = path+"number="+URLEncoder.encode(number, "UTF-8")+"&pwd="+URLEncoder.encode(pwd, "UTF-8");
                    System.out.println(path);
                    URL url = new URL(path);
                    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
                    
                    conn.setRequestMethod("GET");
                    conn.setConnectTimeout(5000);
                    
                    int code = conn.getResponseCode();
                    
                    if(code==200){
                        
                        InputStream in = conn.getInputStream();
                        
                        String data = StreamTool.decodeStream(in);
                        
                        Message msg = Message.obtain();
                        msg.what=SUCCESS;
                        msg.obj = data;
                        mHandler.sendMessage(msg);
                    }
                    
                } catch (Exception e) {
                    e.printStackTrace();
                    Message msg = Message.obtain();
                    msg.what=ERROR;
                    mHandler.sendMessage(msg);
                }
                
            };
        }.start();
        
        
    }

}