var http = require("http"); var fs = require("fs"); var queryString = require('querystring'); var url = require('url'); var util = require('util');  http.createServer(function (request, response) {  // 定義了一個post變量，用于暫存請求體的信息  var post = '';  request.on('data', function(chunk){   post += chunk;  }); // 在end事件觸發后，通過querystring.parse將post解析為真正的POST請求格式，然后向客戶端返回。  request.on('end', function(){   post = queryString.parse(post);   console.log("請求結束"+post.body);   response.writeHead(200, {"Content-Type": "text/plain;charset=utf8"});   response.write("請求成功");   response.end();  });  }).listen(8888); console.log("服務器啟動");  function writeFile(str) {  fs.writeFile('E:/log.txt', str, function (err) {   if (err) {    return console.error(err);   }   console.log("數據寫入成功！");  }) } 

package com.example.hanbo.servertest;  import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.TextView;  import org.json.JSONObject;  import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.OutputStream; import java.io.OutputStreamWriter; import java.io.UnsupportedEncodingException; import java.net.HttpURLConnection; import java.net.MalformedURLException; import java.net.ProtocolException; import java.net.URL; import java.net.URLEncoder;  public class MainActivity extends AppCompatActivity { private TextView textView;  @Override  protected void onCreate(Bundle savedInstanceState) {   super.onCreate(savedInstanceState);   setContentView(R.layout.activity_main);    textView= (TextView) findViewById(R.id.textView);   Button button= (Button) findViewById(R.id.button);   button.setOnClickListener(new View.OnClickListener() {    @Override    public void onClick(View view) {     textView.setText("開始請求");     new Thread(new Runnable() {      @Override      public void run() {       HttpURLConnection connection = null;       URL url = null;       try {        url = new URL("http://192.168.1.177:8888");        connection = (HttpURLConnection) url.openConnection();        connection.setRequestMethod("POST");        connection.setConnectTimeout(8000);        connection.setReadTimeout(8000);        connection.setRequestProperty("Content-Type","application/json");        OutputStream outputStream=connection.getOutputStream();        BufferedWriter requestBody=new BufferedWriter(new OutputStreamWriter(outputStream));        String str = URLEncoder.encode("抓哇", "UTF-8");        requestBody.write("name=javaPost&body=1");        requestBody.flush();        requestBody.close();        getResponseJava(connection);       } catch (MalformedURLException e) {        e.printStackTrace();       } catch (ProtocolException e) {        e.printStackTrace();       } catch (IOException e) {        e.printStackTrace();       }      }     }).start();    }   });  }   private void getResponseJava(HttpURLConnection urlConnection) {    InputStream in = null;    try {     in = urlConnection.getInputStream();//響應    } catch (IOException e) {     urlConnection.disconnect();     //textView.setText(e.getMessage());     return;    }    BufferedReader reader = null;    try {     reader = new BufferedReader(new InputStreamReader(in,"UTF-8"));    } catch (UnsupportedEncodingException e1) {     e1.printStackTrace();    }    final StringBuilder result = new StringBuilder();    String tmp = null;    try {     while((tmp = reader.readLine()) != null){      result.append(tmp);     }    } catch (IOException e) {     //textView.setText(e.getMessage());     return;    } finally {     try {      reader.close();      urlConnection.disconnect();     } catch (IOException e) {     }    }    runOnUiThread(new Runnable() {     @Override     public void run() {      textView.setText(result);     }    });    }  }