Java Servlet JSP编程(一)

时间：2025-01-06 22:07:26

最近想学学java编程，java现在的应用还是挺广泛的，有必要学习一下。

# index.jsp

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"

    pageEncoding="ISO-8859-1"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">

<title>ServletValue</title>

</head>

<body>

<form method="get" action="/JavaWeb/HelloWorld" >

Name:<input type="text" name="name" /><br />

Age:<input type="text" name="age" /><br />

<input type="submit"  value="submit" />

</form>

</body>

</html>
# com.seller.servlets   HelloWorld.java

package com.seller.servlets;

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;

@WebServlet("/HelloWorld")

public class HelloWorld extends HttpServlet {

    private static final long serialVersionUID = 1L;

    public HelloWorld() {

        super();

    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

        String name = request.getParameter("name");

        String age = request.getParameter("age");

        request.setAttribute("name", name);

        request.setAttribute("age", age);

        request.getRequestDispatcher("HelloWorld.jsp").forward(request, response);

    }

}
# HelloWorld.jsp

<%@ page language="java" contentType="text/html; charset=utf-8"

    pageEncoding="ISO-8859-1"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8">

<title>ServletValue</title>

</head>

<body>

<%

    String name = (String)request.getAttribute("name");

    String age = (String)request.getAttribute("age");

%>

Name: <%=name %><br />

Age: <%=age %>

</body>

</html>

eclipse目录结构:

Java Servlet JSP编程(一)

运行效果：

Java Servlet JSP编程(一)

Java Servlet JSP编程(一)

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