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jsp和servlet中实现页面跳转的方式实例总结

2015-10-31 14:59 1031 查看

本文实例总结了jsp和servlet中实现页面跳转的方式。分享给大家供大家参考，具体如下：

假设要求从test1.jsp 跳转到test2.jsp

一. jsp中跳转：

1. 使用RequestDispatcher.forward方法转发

<%
RequestDispatcher rd = getServletContext().getRequestDispatcher("/test/test2.jsp");
rd.forward(request, response);
%>

2. response.sendRedirect 重定向

<%
response.sendRedirect("test2.jsp");
%>

3. 使用forward标签

复制代码代码如下: <jsp:forward page="test2.jsp"/>

4. html标记中的meta标记

复制代码代码如下: <meta http-equiv="refresh" content="0; url=test2.jsp">

5. 使用response.setHeader

<%
int stayTime=0;
String URL="test2.jsp";
String content=stayTime+";URL="+URL;
response.setHeader("REFRESH",content);
%>

6. 使用response.setHeader和response.setStatus 发送重定向请求

<%
response.setStatus(HttpServletResponse.SC_MOVED_PERMANENTLY);
String newLocation = "test2.jsp";
response.setHeader("Location",newLocation);
%>

7. 使用javascript脚本

<script type="text/javascript">
window.location.href="test2.jsp";
</script>

二. servlet中跳转：

假设从 servlet中跳转到test2.jsp

1. forward

ServletContext sc = getServletContext();
RequestDispatcher rd = sc.getRequestDispatcher("/test/test2.jsp"); //定向的页面
rd.forward(request, response);
public class ForwardServlet extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String id = request.getParameter("id");
response.setContentType("text/html; charset=gb2312");
ServletContext sc = getServletContext();
RequestDispatcher rd = sc.getRequestDispatcher("/test/test2.jsp"); //定向的页面
rd.forward(request, response);
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doGet(request, response);
}
}

2. sendRedirect

package com.yanek.test;
import java.io.IOException;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class RedirectServlet extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String id = request.getParameter("id");
response.setContentType("text/html; charset=gb2312");
response.sendRedirect("test/test2.jsp");
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doGet(request, response);
}
}

希望本文所述对大家JSP程序设计有所帮助。

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标签： jsp servlet 跳转

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