015_请求转发和重定向

最新推荐文章于 2024-07-25 10:27:47 发布

自由与束缚JavaJavaScript

最新推荐文章于 2024-07-25 10:27:47 发布

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分类专栏： Servlet学习

本文链接：https://blog.youkuaiyun.com/aihiao/article/details/113176195

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一. 重定向和转发工程

1. 新建一个SendRedirectForward的Web工程

2. 在WebContent下新建index.html和success.html

3. 编写index.html

<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8" />
		<title>重定向和转发</title>
	</head>
	<body>
		<a href="SendRedirect.action">重定向</a><br/>
		<a href="Forward.action">转发</a>
	</body>
</html>

4. 编写success.html

<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8" />
		<title>success</title>
	</head>
	<body>
		<h1>success</h1>
	</body>
</html>

5. 新建SendRedirect.java和Forward.java

6. 编写SendRedirect.java

package com.lywgames.myservlet;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class SendRedirect extends HttpServlet {
	private static final long serialVersionUID = 1L;

	@Override
	protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
		resp.sendRedirect("success.html");
	}

	@Override
	protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
		doGet(req, resp);
	}
}

7. 编写Forward.java

package com.lywgames.myservlet;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class Forward extends HttpServlet {
	private static final long serialVersionUID = 1L;

	@Override
	protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
		req.getRequestDispatcher("success.html").forward(req, resp);
	}

	@Override
	protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
		doGet(req, resp);
	}
}

8. 编写web.xml