[android] post请求接口demo测试代码

MainActivity.java

package com.tsh.test;

import java.io.InputStream;

import java.io.OutputStream;

import java.io.PrintWriter;

import java.net.HttpURLConnection;

import java.net.URL;

import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

import android.os.Handler;

import android.os.Message;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.TextView;

import android.widget.Toast;

public class MainActivity extends Activity {

    public Button loginBtn;

    public TextView loginUserName;

    public TextView loginPassword;

    public static String API="http://mail.sina.net/loginxxx";

    public LoginHandler loginHandler;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        //获取View对象

        loginBtn=(Button) findViewById(R.id.loginBtn);

        loginUserName=(TextView) findViewById(R.id.loginUsername);

        loginPassword=(TextView) findViewById(R.id.loginPassword);

        //给View对象设置点击事件

        loginBtn.setOnClickListener(new OnClickListener() {

            @Override

            public void onClick(View arg0) {

                //开启新线程

                Thread loginThread=new Thread(new LoginRunable());

                loginThread.start();

            }

        });

        loginHandler=new LoginHandler();

    }

    //实现Runable接口,开启新线程

    class LoginRunable implements Runnable{

        @Override

        public void run() {

            try {

                URL url=new URL(API);

                HttpURLConnection http=(HttpURLConnection) url.openConnection();

                http.setRequestMethod("POST");

                http.setDoInput(true);

                http.setDoOutput(true);

                OutputStream ops=http.getOutputStream();

                PrintWriter pw=new PrintWriter(ops);

                String username=loginUserName.getText().toString();

                String password=loginPassword.getText().toString();

                pw.write("email="+username+"&psw="+password+"&loginfrom=app&output=json");

                pw.flush();

                InputStream ins=http.getInputStream();

                byte[] buffer = new byte[1024];

                int length=0;

                StringBuilder sb=new StringBuilder();

                while((length=ins.read(buffer))!=-1){

                    sb.append(new String(buffer,0,length));

                }

                Message msg=new Message();

                msg.what=1;

                msg.obj=sb.toString();

                loginHandler.sendMessage(msg);

            } catch (Exception e) {

                // TODO Auto-generated catch block

                e.printStackTrace();

            }

        }

    }

    //传递消息的handle

    class LoginHandler extends Handler{

        @Override

        public void handleMessage(Message msg) {

            String loginResponse=(String) msg.obj;

            System.out.println(loginResponse);

            Toast.makeText(MainActivity.this, loginResponse, 10).show();

            Intent intent=new Intent(MainActivity.this, MailIndexActivity.class);

            //startActivity(intent);

        }

    }

}

main_activity.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical"

    tools:context="${relativePackage}.${activityClass}" >

    <TextView

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="用户名" />

    <EditText

        android:hint="请输入用户名"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:id="@+id/loginUsername"

        android:text="[email protected]"

        />

    <TextView

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="密码"/>

    <EditText

        android:hint="请输入密码"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:id="@+id/loginPassword"

        android:text="xxxxxxx"/>

    <Button

        android:id="@+id/loginBtn"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:text="登陆认证"

        />

</LinearLayout>