Question

我通过ejb坚持使用jsf重定向，我花了一天的时间找到问题而没有发现问题。

我想在EJB中运行一个操作，并根据结果将用户重定向到另一个页面。我确信该函数可以正常工作，我在调试模式下跟踪结果。

我已经在其他项目中以相同的方式进行了重定向，但它在这里不起作用，在ordre中确定，我创建了一个非常基本的函数，我遇到了同样的问题。

为了测试这个功能，我做了一个测试ejb：

@Named
@SessionScoped
public class testController implements Serializable{
    public String redirection(){
        return "login.xhtml";
    }   
}

以及我尝试使用该功能的地方：

<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:h="http://java.sun.com/jsf/html"
      xmlns:f="http://java.sun.com/jsf/core"
      xmlns:ui="http://java.sun.com/jsf/facelets"
      xmlns:p="http://primefaces.org/ui">

    <h:head>
        <f:facet name="first">
            <meta http-equiv="X-UA-Compatible" content="IE=edge" />
            <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
            <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0"/>
            <meta name="apple-mobile-web-app-capable" content="yes" />
        </f:facet>
        <title>PrimeFaces Omega</title>
    </h:head>

    <h:body styleClass="login-body">
        <p:commandButton value="test" actionListener="#{testController.redirection()}"/>
        </h:body>
</html>

这是web.xml配置：

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" 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_3_0.xsd">
    <welcome-file-list>
        <welcome-file>login.xhtml</welcome-file>
    </welcome-file-list>
    <context-param>
        <param-name>javax.faces.PROJECT_STAGE</param-name>
        <param-value>Development</param-value>
    </context-param>
    <!-- JSF mapping -->
    <servlet>
        <servlet-name>Faces Servlet</servlet-name>
        <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <!-- Map these files with JSF -->
    <servlet-mapping>
        <servlet-name>Faces Servlet</servlet-name>
        <url-pattern>/faces/*</url-pattern>
    </servlet-mapping>
    <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>
    <servlet-mapping>
        <servlet-name>Faces Servlet</servlet-name>
        <url-pattern>*.xhtml</url-pattern>
    </servlet-mapping>
    <context-param>
        <param-name>primefaces.THEME</param-name>
        <param-value>omega</param-value>
    </context-param>
    <context-param>
        <param-name>primefaces.FONT_AWESOME</param-name>
        <param-value>true</param-value>
    </context-param>
    <mime-mapping>
        <extension>ttf</extension>
        <mime-type>application/font-sfnt</mime-type>
    </mime-mapping>
    <mime-mapping>
        <extension>woff</extension>
        <mime-type>application/font-woff</mime-type>
    </mime-mapping>
    <mime-mapping>
        <extension>woff2</extension>
        <mime-type>application/font-woff2</mime-type>
    </mime-mapping>
    <mime-mapping>
        <extension>eot</extension>
        <mime-type>application/vnd.ms-fontobject</mime-type>
    </mime-mapping>
    <mime-mapping>
        <extension>eot?#iefix</extension>
        <mime-type>application/vnd.ms-fontobject</mime-type>
    </mime-mapping>
    <mime-mapping>
        <extension>svg</extension>
        <mime-type>image/svg+xml</mime-type>
    </mime-mapping>
    <mime-mapping>
        <extension>svg#exosemibold</extension>
        <mime-type>image/svg+xml</mime-type>
    </mime-mapping>
    <mime-mapping>
        <extension>svg#exobolditalic</extension>
        <mime-type>image/svg+xml</mime-type>
    </mime-mapping>
    <mime-mapping>
        <extension>svg#exomedium</extension>
        <mime-type>image/svg+xml</mime-type>
    </mime-mapping>
    <mime-mapping>
        <extension>svg#exoregular</extension>
        <mime-type>image/svg+xml</mime-type>
    </mime-mapping>
    <mime-mapping>
        <extension>svg#fontawesomeregular</extension>
        <mime-type>image/svg+xml</mime-type>
    </mime-mapping>
</web-app>

我查看日志文件，我的功能正常运行但我应该重定向到索引页面，应用程序停留在页面上。

有人可以帮忙吗？

Answer 1

组件p:commandButton不支持仅使用普通字符串的操作重定向，而不显式附加重定向参数。

如果要使用操作重定向，则必须在字符串中包含faces-redirect=true作为url参数。

稍微更改代码应该可以解决问题：

public String redirection(){
    return "login.xhtml?faces-redirect=true";
}

通过actionListener重定向无法正常工作

1 个答案: