servletContext实现请求转发

最新推荐文章于 2022-03-22 13:56:31 发布

原创最新推荐文章于 2022-03-22 13:56:31 发布 · 443 阅读

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本文介绍了一个使用ServletContext对象进行请求转发的Servlet示例。该Servlet通过@WebServlet注解配置，并实现了doGet方法来处理GET请求，其中使用getServletContext()方法获取ServletContext对象，并调用其getRequestDispatcher()方法完成请求转发。

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package com.xxx.action;

import java.io.IOException;

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

/**
 * ServletContext对象实现请求转发
 * @author Administrator
 *
 */
@WebServlet(
		name="text",
		urlPatterns="/test",
		initParams={
			@WebInitParam(name="driver",value="com.mysql.jdbc.Driver")
		})
public class TestServlet extends HttpServlet {

	@Override
	protected void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		//获取ServletContext对象
		ServletContext context=this.getServletContext();
		//请求转发
		context.getRequestDispatcher("/index.jsp").forward(request, response);
	}
	
	@Override
	protected void doPost(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
	}
}