实例介绍
【实例简介】
【实例截图】
【实例截图】
【核心代码】
服务器端源码：
package service;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class ServletTest extends HttpServlet {
/**
* Constructor of the object.
*/
public ServletTest() {
super();
}
/**
* Destruction of the servlet. <br>
*/
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
// Put your code here
}
/**
* The doGet method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to get.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
System.out.println(request.getParameter("param"));
response.getOutputStream().print("Server I coming");
}
/**
* The doPost method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to post.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
out.println("<HTML>");
out.println(" <HEAD><TITLE>A Servlet</TITLE></HEAD>");
out.println(" <BODY>");
out.print(" This is ");
out.print(this.getClass());
out.println(", using the POST method");
out.println(" </BODY>");
out.println("</HTML>");
out.flush();
out.close();
}
/**
* Initialization of the servlet. <br>
*
* @throws ServletException if an error occurs
*/
public void init() throws ServletException {
// Put your code here
}
}
客户端源码
package com.test;
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLDecoder;
import java.net.URLEncoder;
import android.app.Activity;
import android.graphics.Color;
import android.os.Bundle;
import android.view.View;
import android.widget.*;
public class TestActivity extends Activity {
private Button mButton;
private TextView mText;
private int[]mColors;
private int colornum;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
/* 本机测试 因为安卓虚拟机把自己当做了主机 所以服务器端的url写成10.0.2.2 */
String strUrl="http://10.0.2.2:8080/servlet_db/ServletTest?param=helloWorld";
URL url= null;
try {
url=new URL(strUrl);
HttpURLConnection urlConn=(HttpURLConnection)url.openConnection();
InputStreamReader in= new InputStreamReader(urlConn.getInputStream());
BufferedReader bufferReader= new BufferedReader(in);
String result="";
String readLine=null;
while((readLine=bufferReader.readLine())!=null)
{
result =readLine;
}
in.close();
urlConn.disconnect();
TextView textView=(TextView)this.findViewById(R.id.result);
textView.setText(result);
} catch (Exception e) {
// TODO: handle exception
}
}
}
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