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java - a4j :commandButton doesn't work

转载 作者:行者123 更新时间:2023-12-01 06:20:19 25 4
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我是 JSF 和 RichFaces 的新手。我有一个应该调用 bean 方法的按钮。当我使用

<h:commandButton action="#{loginBean.userLogin}" value="Login" />

它工作正常,但是当我点击

<a4j:commandButton action="#{loginBean.userLogin}" value="Login" />

没有任何反应。

我的bean代码:

public class LoginBean {

@Size(min = 2, max = 20, message = "Must be betwen 2 and 20 chars")
private String login;
@Size(min = 1, message = "Please Enter your password")
private String password;

//getters and setters

public String userLogin() {
//user login code

}
}

我的 JSP 页面代码:

<body>
<f:view>
<div >
<h:form id="loginForm">
<h:panelGrid columns="3">
<h:outputLabel for="login" value="Login:" />
<h:inputText id="login" value="#{loginBean.login}" >

</h:inputText>
<rich:message for="login" />

<h:outputLabel for="password" value="Password:" />
<h:inputSecret id="password" value="#{loginBean.password}" />
<rich:message for="password" />
</h:panelGrid>

<div>
<h:commandButton action="#{loginBean.login}" value="Login" />
<a4j:commandButton action="#{loginBean.login}" value="Login" />
</div>
<div>
<a href="<%= request.getContextPath() %>/registration.jsf">Registration</a>
</div>
</h:form>
</div>
</f:view>
</body>

正如你所看到的,我什至添加了两个按钮。第一个工作正常,第二个没有任何作用。

UPD:我一开始没有使用 RichFaces,但我的应用程序运行良好。所以我想导航规则等都很好。不起作用的是我刚刚添加的 a4j:commandButton。

UPD2:这是我的 web.xml:

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee" version="2.5" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

<display-name>webappsaichuk</display-name>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>

<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.jsf</url-pattern>
</servlet-mapping>

<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>/faces/*</url-pattern>
</servlet-mapping>

<listener>
<listener-class>com.sun.faces.config.ConfigureListener</listener-class>
</listener>

最佳答案

您的方法的名称必须与您的属性的名称不同。

public class LoginBean {

@Size(min = 2, max = 20, message = "Must be betwen 2 and 20 chars")
private String login;
@Size(min = 1, message = "Please Enter your password")
private String password;

//getters and setters...

public String userLogin() {
//user login code
}
}
<h:inputText id="login" value="#{loginBean.login}" styleClass="rowInput">
<h:commandButton action="#{loginBean.userLogin}" value="Login" />
<a4j:commandButton action="#{loginBean.userLogin}" value="Login" />

更新

您应该将 RichFaces 过滤器添加到 web.xml(基于 Getting started with RichFaces ):

<!-- some context params to get better performance for RichFaces -->
<context-param>
<param-name>org.ajax4jsf.COMPRESS_SCRIPT</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<param-name>org.ajax4jsf.SKIN</param-name>
<param-value>classic</param-value>
</context-param>
<context-param>
<param-name>org.ajax4jsf.handleViewExpiredOnClient</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<param-name>org.richfaces.LoadScriptStrategy</param-name>
<param-value>ALL</param-value>
</context-param>
<context-param>
<param-name>org.richfaces.LoadStyleStrategy</param-name>
<param-value>ALL</param-value>
</context-param>
<!-- main filter for RichFaces -->
<filter>
<display-name>Ajax4jsf Filter</display-name>
<filter-name>ajax4jsf</filter-name>
<filter-class>org.ajax4jsf.Filter</filter-class>
</filter>

<filter-mapping>
<filter-name>ajax4jsf</filter-name>
<servlet-name>Faces Servlet</servlet-name>
<dispatcher>REQUEST</dispatcher>
<dispatcher>FORWARD</dispatcher>
<dispatcher>INCLUDE</dispatcher>
</filter-mapping>

关于java - a4j :commandButton doesn't work,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/10089109/

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