HttpClient——get--post

package com.example.httpclientgetpost;

import java.io.BufferedReader;

import java.io.InputStream;

import java.io.InputStreamReader;

import java.io.UnsupportedEncodingException;

import java.util.ArrayList;

import java.util.List;

import org.apache.http.HttpResponse;

import org.apache.http.HttpStatus;

import org.apache.http.NameValuePair;

import org.apache.http.client.HttpClient;

import org.apache.http.client.entity.UrlEncodedFormEntity;

import org.apache.http.client.methods.HttpGet;

import org.apache.http.client.methods.HttpPost;

import org.apache.http.impl.client.DefaultHttpClient;

import org.apache.http.message.BasicNameValuePair;

import org.apache.http.protocol.HTTP;

import android.app.Activity;

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;

public class MainActivity extends Activity {

    private TextView tv;
private Button btn_get;
private Button btn_post;

Handler handler=new Handler(){@Override
public void handleMessage(Message msg) {

if(msg.what==1){
tv.setText("Get请求-----"+(String)msg.obj);
}else if(msg.what==2){
tv.setText("Post请求-----"+(String)msg.obj);
};

}};

@Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

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

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

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

        

        btn_get.setOnClickListener(new OnClickListener() {
public void onClick(View v) {

new Thread(){
public void run() {
//1、创建HttpClient对象
HttpClient  hc=new DefaultHttpClient();

//2、创建HttpGet对象，构造方法的参数是访问的网址
HttpGet hg=new HttpGet("http://apis.juhe.cn/cook/query?key=896f80e443864fcb163f71b64009ee2b&menu=西红柿&rn=10&pn=3&dtype=xml");

//3、使用客户端对象把get请求发送出去
try {
HttpResponse response = hc.execute(hg);
//拿到响应头的状态行得到状态码判断是否请求成功（200）
if(response.getStatusLine().getStatusCode()==HttpStatus.SC_OK){
//拿到响应头实体的内容的到输入流
InputStream is = response.getEntity().getContent();
StringBuffer sb=new StringBuffer();
BufferedReader br=new BufferedReader(new InputStreamReader(is));
String st=null;
while((st=br.readLine())!=null){
sb.append(st);
}
is.close();
Message msg = handler.obtainMessage(1,sb.toString());
handler.sendMessage(msg);
}
} catch (Exception e) {
e.printStackTrace();
} 
};

}.start();

}
});

        

        btn_post.setOnClickListener(new OnClickListener() {
public void onClick(View v) {

new Thread(){

public void run() {
//1、创建HttpClient对象
HttpClient hc=new DefaultHttpClient();
//2、创建HttpPost对象
HttpPost hp=new HttpPost("http://v.juhe.cn/wzpoints/query");
//封装提交的表单数据加入到集合
List<NameValuePair> list=new ArrayList<NameValuePair>();
list.add(new BasicNameValuePair("key","1ddd601ebc5e79775f6f49f8782a394c"));
list.add(new BasicNameValuePair("lat","31.335005"));
list.add(new BasicNameValuePair("lon","120.617183"));
list.add(new BasicNameValuePair("r","1000"));

// key=1ddd601ebc5e79775f6f49f8782a394c&lat=31.335005&lon=120.617183&r=1000

try {
//把集合转换成实体对象
UrlEncodedFormEntity entity=new UrlEncodedFormEntity(list,HTTP.UTF_8);
//设置post提交乱码
hp.setHeader("Content-Type","application/x-www-form-urlencoded;charset=utf-8");
//设置post请求的实体，其实就是把要提交的数据封装至POSt请求的输出流
hp.setEntity(entity);
//3、使用客户端发送post请求
HttpResponse response = hc.execute(hp);
//拿到响应头的状态行的状态码判断是否请求成功（200）
if(response.getStatusLine().getStatusCode()==HttpStatus.SC_OK){
//拿到相应实体的内容（输入流）
InputStream is = response.getEntity().getContent();
StringBuffer sb=new StringBuffer();
byte[] bt=new byte[1024];
int b=0;
while(-1!=(b=is.read(bt))){
sb.append(new String(bt, 0,b));
}
//关闭流
is.close();
Message msg = handler.obtainMessage(2, sb.toString());
handler.sendMessage(msg);
}
} catch (Exception e) {
e.printStackTrace();
}
};
}.start();

}
});

        

    }

  

    

}