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關於jsp和servlet中實現頁麵跳轉的幾種方式總結
關於jsp和servlet中實現頁麵跳轉的幾種方式：
假設要求從test1.jsp 跳轉到test2.jsp
一. jsp中跳轉：
1. 使用RequestDispatcher.forward方法轉發
<%
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標簽
<jsp:forward page="test2.jsp"/>
4. html標記中的meta標記
<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 發送重定向請求
<%
response.setStatus(HttpServletResponse.SC_MOVED_PERMANENTLY);
String newLocation = "test2.jsp";
response.setHeader("Location",newLocation);
%>
7. 使用javascript腳本
<script type="text/javascript">
window.location.href="test2.jsp";
</script>
二. servlet中跳轉：
假設 從 servlet中跳轉到test2.jsp
1. forward
ServletContext sc = getServletContext();
RequestDispatcher rd = sc.getRequestDispatcher("/test/test2.jsp"); //定向的頁麵
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"); //定向的頁麵
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);
}
}
最後更新：2017-04-02 22:16:31