在jsp页面如何获取servlet请求中的参数的办法

在JAVA WEB应用中，如何获取servlet请求中的参数　，并传递给跳转的JSP页面？例如访问http://localhost:8088/bbs?id=1

当执行这个bbs servlet时，将url参数id的值传递给bbs.jsp页面？

（１）首先要配置web.xml，见下面的配置　：

　　　 <servlet>

<servlet-name>bbs</servlet-name>

<servlet-class>

org.openjweb.core.servlet.BBSServlet

</servlet-class>

</servlet>

<servlet-mapping>

<servlet-name>bbs</servlet-name>

<url-pattern>/bbs</url-pattern>

</servlet-mapping>

（２）编写servlet类：

package org.openjweb.core.servlet;

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 BBSServlet extends HttpServlet

{

private static final long serialVersionUID = 1L;

public BBSServlet()

{

super();

// TODO Auto-generated constructor stub

}

protected void doGet(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException

{

　//http://bbs.csdn.net/topics/90438353

request.setCharacterEncoding("UTF-8"); //设置编码

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

request.setAttribute("id", id);

request.getRequestDispatcher("/bbs.jsp").forward(request, response);

}

protected void doPost(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException

{

doGet(request, response);

}

}

在应用根目录创建bbs.jsp文件，内容为：

<%@ page contentType="text/html;charset=UTF-8"%>

<%

out.println(request.getAttribute("id"));

%>

注意很多人传递参数不成功是因为是在doGet方法中调用doPost,这里doGet方法不要调用doPost.