JSP页面获取action传递过来的值

向右看齐 2022-08-23 03:57 142阅读 0赞

first class：  
————————————–action

public String getUser()\{

List<User> list = userService.finAll();
    
       //ActionContext.getContext().getValueStack().set("list", list.get(0));//引号内的list就是Jsp页面s标签里卖弄的value
    
       User u = new User();
       u = list.get(0);
    
      ActionContext.getContext().getValueStack().set("user", u);
    
        return "getuser";
    }

——————————————jsp

！–<%@ page language=”java” contentType=”text/html; charset=UTF-8”  
pageEncoding=”UTF-8”%>  
<%@ taglib uri=”/struts-tags” prefix=”s”%>

试了很久就会这种，求求其他大神有没有什么办法能把action的对象值显示在Jsp中？

## second class : ##

——————————————————-action  
public String getUser()\{  
List list = userService.finAll();

//ActionContext.getContext().getValueStack().set("list", list.get(0));//引号内的list就是Jsp页面s标签里卖弄的value
    
       User u = new User();
       u = list.get(0);
    
     // ActionContext.getContext().getValueStack().set("user", u);
    
      ServletActionContext.getRequest().setAttribute("users", u);
    
        return "getuser";

\}  
——————————————————-jsp

<tr>
                                        <th><span class="requiredField">*</span>用户名:</th>
                                        <td><s:property value="#user.name" /></td>
                                    </tr>
    
                                    <tr>
                                        <th><span class="requiredField">*</span>用户名:</th>
                                        <td>第一种：
                                        <%
                                        User u = (User)request.getAttribute("users");
    
                                        out.print(u.getEmail());
    
                                        %>
                                        </td>
                                        <td>
                                        第二种：
                                        ${users.getEmail()}
                                        </td>
                                    </tr>
    
                                </tbody>

--------------------

## third class: ##

———————————action  
public String getUser()\{

List<User> list = userService.finAll();
       User u = new User();
       u = list.get(0);
      ServletActionContext.getRequest().getSession().setAttribute("session", u);
    
        return "getuser";
    }

———————————jsp

\*第三种:  
  
$\{sessionScope.session.addr \}

--------------------

![这里写图片描述][20160607194339022]

[20160607194339022]: /images/20220722/d6a7a689e8e54e04aec0a8324476e2e5.png