Android，机器狗应用

源码如下：

package com.wyl.jqr;



import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

import java.io.UnsupportedEncodingException;

import java.net.HttpURLConnection;

import java.net.MalformedURLException;

import java.net.URL;

import java.net.URLEncoder;



import com.example.tulinjiqiren.R;

import com.google.gson.Gson;



import android.os.Bundle;

import android.os.Handler;

import android.os.Message;

import android.support.v7.app.ActionBarActivity;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.EditText;

import android.widget.TextView;



public class MainActivity extends ActionBarActivity {

	Button btn;

	Button btn2;

	EditText et;

	TextView tv;

	myHandler handler = new myHandler();

	@Override

	protected void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);

		setContentView(R.layout.activity_main);

		btn = (Button)findViewById(R.id.btn01);

		btn2 = (Button)findViewById(R.id.btn02);

		et = (EditText)findViewById(R.id.editText01);

		tv = (TextView)findViewById(R.id.textview02);//用来赋值

		MyOnclickListener l = new MyOnclickListener();

		btn.setOnClickListener(l);

		btn2.setOnClickListener(l);

	}



	class MyOnclickListener implements OnClickListener{

		@Override

		public void onClick(View view) {

			if(view.getId()==R.id.btn01){

				//1.获取录入的问题

				String question = et.getText().toString();

				//2.访问网络

				//主线程不能够访问网络，由此，需要借助开启新线程和handler的方式

				myThread myThread = new myThread();

				myThread.start();

				System.out.println("发送请求的线程："+Thread.currentThread().getName());

			}else if(view.getId()==R.id.btn02){

				//清空edittext

				System.out.println("清楚的线程："+Thread.currentThread().getName());

				et.setText("");

			}

		}

	}

	class myHandler extends Handler{

		@Override

		public void handleMessage(Message msg) {

			String daan = (String)msg.obj;

			if(daan == "" || daan.equals(null)){

				daan = "暫時不支持該轉換";

			}

			System.out.println("myHandler()方法的线程："+Thread.currentThread().getName());

			tv.setText(daan);

		}

	}

	class myThread extends Thread{

		

		@Override

		public void run() {

			//访问网络

			System.out.println("run()的线程："+Thread.currentThread().getName());

			String APIKEY = "e59219b3f450256c2a3da7157ae651f2"; 

		    String INFO;

		    String getURL;

		    URL getUrl;

		    String question = et.getText().toString();//获取前台的问题

		    try {

				INFO = URLEncoder.encode(question, "utf-8");//需要改造

				getURL = "http://www.tuling123.com/openapi/api?key=" + APIKEY + "&info=" + INFO; 

			    getUrl = new URL(getURL); 

			    HttpURLConnection connection = (HttpURLConnection) getUrl.openConnection(); 

			    connection.connect(); 



			    // 取得输入流，并使用Reader读取 

			    BufferedReader reader = new BufferedReader(new InputStreamReader( connection.getInputStream(), "utf-8")); 

			    StringBuffer sb = new StringBuffer(); 

			    String line = ""; 

			    while ((line = reader.readLine()) != null) { 

			        sb.append(line); 

			    } 

			    reader.close(); 

			    // 断开连接 

			    connection.disconnect(); 

			    System.out.println("获取到的答案"+sb);

			    //sb是json格式的，需要做轉化，

			    Gson gson = new Gson();

			    String sb2 = sb.toString();

			    System.out.println("sb2的值："+sb2);

			    myBean rtn = gson.fromJson(sb2, myBean.class);

			    System.out.println("rtn的值："+rtn);

			    String text = rtn.getText();

			    System.out.println("text的值："+text);

			    //因为本线程workThread，不能够直接把值返回到UI中，所以把答案放到队列里，

			    Message msg = handler.obtainMessage();

			    msg.obj = text;//把轉化後的答案綁定到msg上

			    handler.sendMessage(msg);

			} catch (UnsupportedEncodingException e) {

				e.printStackTrace();

			} catch (MalformedURLException e) {

				e.printStackTrace();

			} catch (IOException e) {

				e.printStackTrace();

			} 

		    

			

		}

	}

}

　　myBean.java

因为用到了Gson来解析，所以根据返回的json字符串的key来写一个bean。

package com.wyl.jqr;



public class myBean {

	String code;

	String text;

	public String getCode() {

		return code;

	}

	public void setCode(String code) {

		this.code = code;

	}

	public String getText() {

		return text;

	}

	public void setText(String text) {

		this.text = text;

	}

	

	

}