一个简单的servlet和客户端交互的程序

来源：互联网发布：springboot源码分析编辑：程序博客网时间：2024/06/11 16:14

servlet端

package servlet;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
* Servlet implementation class signin
*/
@WebServlet("/Signin")
public class Signin extends HttpServlet {
private static final long serialVersionUID = 1L;

/**
* @see HttpServlet#HttpServlet()
*/
public Signin() {
super();
// TODO Auto-generated constructor stub
}

/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out=response.getWriter();
//String name=(String)request.getParameter("name");
String number=(String)request.getParameter("number");
//System.out.println("姓名="+name+",学号="+number);
System.out.println("姓名="+number);

//out.print("姓名="+name+",学号="+number);
out.print("姓名="+number);
}

/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doGet(request, response);
}

}

客户端

import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.URL;
import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.InputStreamReader;

public class Sgin {

/**
* @param args
*/
public static void main(String[] args) {
URL url;
OutputStreamWriter out;
HttpURLConnection urlConnection;
BufferedReader reader;
String line;
String value="2122";
try{
url=new URL("http://192.168.36.59:8080/InfoSearch/Signin");
urlConnection = (HttpURLConnection)url.openConnection();
urlConnection.setDoOutput(true);
urlConnection.setRequestMethod("POST");//调用servlet服务器端的ＰＯＳＴ方法
out = new OutputStreamWriter(urlConnection.getOutputStream(),"UTF-8");
out.write("number="+value);//以学生的学号为索引来查询学生的详细信息
out.flush();
out.close();


//得到输入流，即获得了网页的内容

reader=new BufferedReader(new InputStreamReader(urlConnection.getInputStream(),"GBK"));
while((line=reader.readLine())!=null){
System.out.println(line);


}



}
catch(Exception e){
System.out.println(e);
e.printStackTrace();
}

}

}

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