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  • Struts2_带参数的结果集

    页面请求:

    <a href="user/user?type=1">传参数</a>

    action:

     1     public Integer type;
     2     
     3     public String execute(){
     4         return SUCCESS;
     5 //        return "test";
     6     }
     7 
     8     public Integer getType() {
     9         return type;
    10     }
    11 
    12     public void setType(Integer type) {
    13         this.type = type;
    14     }

    stuts.xml中把type这个参数传到其他的jsp页面:

    1 <action name="user" class="com.bjsxt.struts2.user.action.UserAction">
    2             <!-- $用来在配置文件里面往值栈 valueStack 里取值 -->
    3             <result type="redirect">/user_success.jsp?t=${type}</result>
    4             <result name="test" type="chain">test</result>
    5         </action>

    注意:一次request共享一个值栈,要想跨request,比如重定向跳转了,那么就可以通过这种方式传递参数。

    jsp页面:

     1 <%@ page language="java" contentType="text/html; charset=UTF-8"
     2     pageEncoding="UTF-8"%>
     3 <%@ taglib uri="/struts-tags" prefix="s"%>
     4 <%
     5 String path = request.getContextPath();
     6 String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
     7 %>
     8 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
     9 <html>
    10 <head>
    11 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    12 <title>user_success</title>
    13 <base href="<%=basePath%>"/>
    14 </head>
    15 <body>
    16 <h1>user success.</h1>
    17 值栈中没值,因为是通过参数传过来的,通过redirect的不在同一个request中<br>
    18 from valuestack:<s:property value="t"/><br>
    19 所以只能通过actionContext来取,具体是parameters
    20 from actioncontext:<s:property value="#parameters.t"/>
    21 <s:debug></s:debug>
    22 </body>
    23 </html>

    结果:

    链接: http://pan.baidu.com/s/1mic8CZm 密码: q5mh

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  • 原文地址:https://www.cnblogs.com/ShawnYang/p/6674737.html
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