关于java post get请求Demo (请求c#iis接口)

Posted 2020-10-26 dxqnet

废话不多说，直接上代码

package dxq.httpGetDemo;

import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;

import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.app.Activity;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;

public class MainActivity extends Activity implements OnClickListener {

    Button btn=null;
    TextView tv=null;
    private Handler handler=new Handler(){
        public void handleMessage(Message mes){
            if(mes!=null&&mes.what==0){
                
                tv.setText(mes.obj.toString());
            }
        }
    };
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        btn=(Button)findViewById(R.id.get);
        btn.setOnClickListener(this);
        btn=(Button)findViewById(R.id.post);
        btn.setOnClickListener(this);
        tv=(TextView)findViewById(R.id.content);
    }
    @Override
    public void onClick(View arg0) {
        // TODO Auto-generated method stub
        
        switch(arg0.getId()){
        case R.id.get:
             GetHttp();
            break;
        case R.id.post:
             PostHttp();
            break;
        }
    }

    /*
     * get请求接口
     * */
    public void GetHttp(){
        new Thread(new Runnable(){

            @Override
            public void run() {
                // TODO Auto-generated method stub
                try {
                    String data="data="+URLEncoder.encode("哈哈Get请求哦");
                    URL url=new URL("http://10.10.21.225:1106/Handler1.ashx");
                    HttpURLConnection connection=(HttpURLConnection)url.openConnection();
                    connection.setReadTimeout(5000);
                    connection.setRequestMethod("GET"); //请求方式 注意要大写
                    connection.setConnectTimeout(5000);
                    connection.setRequestProperty("Content-Length", String.valueOf(data.length()));
                    connection.setDoOutput(true);//设置true  就可以写了
                    
                    connection.getOutputStream().write(data.getBytes());//写入数据
                    int code=connection.getResponseCode();
                    if(code==200){
                        InputStream is=connection.getInputStream();
                        //StreamTools.ReadStream(is);
                        ByteArrayOutputStream  bao=new ByteArrayOutputStream();
                        int len=0;
                        byte[] buffer=new byte[1024];
                        while((len=is.read(buffer))!=-1){
                            
                            bao.write(buffer, 0, len);
                        }
                        is.close();
                        Message mes=new Message();
                        mes.what=0;
                        mes.obj=bao.toString();
                        handler.sendMessage(mes);
                        bao.close();
                    }else{
                        
                        Log.i("错误码", String.valueOf(code));
                    }
                    
                } catch (Exception e) {
                    // TODO Auto-generated catch block
                    Log.i("异常信息", e.toString());
                }
                
            }
            
            
        }).start();
        
        
    }
    
    /*
     * post请求接口
     * */
    public void PostHttp(){
        
        new Thread(new Runnable(){

            @Override
            public void run() {
                // TODO Auto-generated method stub
                URL url;
                try {
                    String data="data="+URLEncoder.encode("呵呵 post请求");
                    url = new URL("http://10.10.21.225:1106/Handler1.ashx");
                    HttpURLConnection conn=(HttpURLConnection)url.openConnection();
                    conn.setReadTimeout(1000);
                    conn.setRequestMethod("POST");//post请求  注意要大写
                    conn.setConnectTimeout(2000);
                    //conn.setRequestProperty("", newValue)
                    conn.setDoOutput(true);
                    conn.getOutputStream().write(data.getBytes());
                    int code=conn.getResponseCode();
                    if(code==200){
                        InputStream is=conn.getInputStream();
                        //StreamTools.ReadStream(is);
                        ByteArrayOutputStream  bao=new ByteArrayOutputStream();
                        int len=0;
                        byte[] buffer=new byte[1024];
                        while((len=is.read(buffer))!=-1){
                            
                            bao.write(buffer, 0, len);
                        }
                        is.close();
                        Message mes=new Message();
                        mes.what=0;
                        mes.obj=bao.toString();
                        handler.sendMessage(mes);
                        bao.close();
                        
                    }else{
                        Log.i("结果码", String.valueOf(code));
                    }
                    
                    
                } catch (Exception e) {
                    // TODO Auto-generated catch block
                    Log.i("post请求异常", e.toString());
                }
            }
            
            
        }).start();
    }


}

2. c#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace WebApplication2
{
    /// <summary>
    /// Handler1 的摘要说明
    /// </summary>
    public class Handler1 : IHttpHandler
    {

        public void ProcessRequest(HttpContext context)
        {
            context.Response.ContentType = "text/plain";
            if (context.Request["data"] != null) 
            {
                context.Response.Write("C#接口"+context.Request["data"].ToString());
                return;
            }
            context.Response.Write("C#接口");
        }

        public bool IsReusable
        {
            get
            {
                return false;
            }
        }
    }
}

3. 执行结果

 

4. 增加一点 别忘了权限

<uses-permission android:name="android.permission.INTERNET"/>