[英]Customize the value of struts2 textfield tag using OGNL
I have a database with a user information. 我有一个包含用户信息的数据库。 When the user is logged on, I registered the user on the session as follow:
当用户登录后,我在会话上注册了用户,如下所示:
ActionContext.getContext().getSession().put("loggedUser", user);
And I want to get the user's information in my jsp page to fill the struts2 textfields with this info. 我想在我的jsp页面中获取用户信息,以便用此信息填充struts2文本字段。 I tried to use the following code, but it does not work:
我尝试使用以下代码,但是它不起作用:
<%@page import="java.util.Map"%>
<%@page import="com.opensymphony.xwork2.ActionContext"%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@ page import="UbiMail.*" %>
<%@taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<%
User user = (User) ActionContext.getContext().getSession().get("LoggedUser");
%>
<html>
<head>
</head>
<body>
<s:form method="POST" action="UpdateAction">
<s:actionerror/>
<s:textfield name="uname" label="Username" value="#session.LoggedUser.getUsername"/>
<s:property value="#session.LoggedUser.getUsername()"/>
<s:password name="password" label="Password"/>
<s:password name="cPassword" label="Confirm password"/>
<s:textfield name="fname" label="First name" value="#session.loggeduser.getFname()"/>
<s:textfield name="lname" label="Last name" value="#session.loggeduser.getLname()"/>
<s:textfield name="popServer" label="POP server" value="#session.loggeduser.getPopServer()"/>
<s:textfield name="popUsername" label="POP username" value="#session.loggeduser.getPopUsername()"/>
<s:password name="popPassword" label="POP password"/>
<s:textfield name="mobilePhone" label="Mobile phone" value="#session.loggeduser.getMobilePhone()"/>
<s:textfield name="filter" label="Notification filter" value="#session.loggeduser.getSms()"/>
<s:checkbox name="sms" label="Enable SMS notification"/>
<s:submit value="Update"/>
</s:form>
</body>
I want your help, please. 请给我帮助。
Instead of this 代替这个
<s:textfield name="uname" label="Username" value="#session.LoggedUser.getUsername"/>
use this 用这个
<s:textfield name="uname" label="Username" value='<s:property value="%{#session.loggedUser.getUsername}"/>'/>
On a similar note you can do for rest of your fields. 类似地,您可以对其余字段执行操作。
Another thing you are mismatching LoggedUser
and loggedUser
, in your Java code key is loggedUser
and not LoggedUser
, so in jsp use loggedUser
. 另一个与
LoggedUser
和loggedUser
不匹配的东西是,在Java代码密钥中是loggedUser
而不是LoggedUser
,因此在jsp中使用loggedUser
。
Off topic: I don't think you need to use scriptlet in your jsp code. 主题外:我认为您不需要在jsp代码中使用scriptlet。
This tag will generate text input with name "uname" and value "#session.LoggedUser.getUsername". 此标记将生成名称为“ uname”且值为“#session.LoggedUser.getUsername”的文本输入。
Your want to read value from the session. 您想从会话中读取价值。 Of course, your can read value this way:
当然,您可以通过以下方式读取值:
<s:textfield name="#session.LoggedUser.getUsername" label="Username" value="#session.LoggedUser.getUsername"/>
but i don't think that your need input with name "#session.LoggedUser.getUsername" ) 但我不认为您需要输入名称为“#session.LoggedUser.getUsername”)
So the solution is: 因此解决方案是:
<input type="text" name="uname" value="<s:property value="#session.LoggedUser.username"/>"/>
在Struts 2.3上有效: value="%{#session.loggedUser.username}"
This is not working 这不行
value="#session.LOGIN.name"
This is working 这工作
value="%{#session.LOGIN.name}"
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