导航到另一个页面JSF [英] Navigating to another page JSF

问题描述

我编写了一个jsf应用程序，该应用程序将数据插入mysql数据库，并在另一页中显示一些插入的详细信息.

我已成功将值插入数据库，但是即使编写了导航规则也无法重定向到另一页.

我的操作代码

<div align="center"><p:commandButton label="Submit"  action="#{userData.add}"   align="center" ajax="false" /></div>

导航规则

<managed-bean>
        <managed-bean-name>UserData</managed-bean-name>
        <managed-bean-class>userData.UserData</managed-bean-class>
        <managed-bean-scope>session</managed-bean-scope>
    </managed-bean>
    <navigation-rule>
        <display-name>home.xhtml</display-name>
        <from-view-id>/home.xhtml</from-view-id>
        <navigation-case>
            <to-view-id>/badge.xhtml</to-view-id>
        </navigation-case>
    </navigation-rule>

如果我将face-redirect写入true，则显示错误，或者如果将操作写入另一页，则它未将值插入数据库.

解决方案

停止读取JSF 1.x资源，并摆脱faces-config.xml中所有JSF 1.x样式的<managed-bean>和<navigation-rule>条目. /p>

用于action="#{userData.add}"的正确的JSF 2.x方法如下:

@ManagedBean
@ViewScoped
public class UserData {

    public String add() {
        // ...

        return "/badge.xhtml?faces-redirect=true";
    }

}

不需要其他XML混乱.也没有动作侦听器.

可以在我们的JSF Wiki页面中找到JSF 2.x教程/书籍的链接.

另请参见:

• 如何选择正确的bean范围?
• action和actionListener之间的差异

I wrote a jsf application, this app inserts the data into mysql database and shows some of the inserted details in another page.

I am successful in inserting the values into database, but unable to redirect to the other page even after writing the navigation rule.

My action code

<div align="center"><p:commandButton label="Submit"  action="#{userData.add}"   align="center" ajax="false" /></div>

Navigation rule

<managed-bean>
        <managed-bean-name>UserData</managed-bean-name>
        <managed-bean-class>userData.UserData</managed-bean-class>
        <managed-bean-scope>session</managed-bean-scope>
    </managed-bean>
    <navigation-rule>
        <display-name>home.xhtml</display-name>
        <from-view-id>/home.xhtml</from-view-id>
        <navigation-case>
            <to-view-id>/badge.xhtml</to-view-id>
        </navigation-case>
    </navigation-rule>

If i write the face-redirect true then its showning an error, or if i write the action to the other page then its not inserting the values to database.

解决方案

Stop reading JSF 1.x resources and get rid of all that JSF 1.x-style <managed-bean> and <navigation-rule> entries in faces-config.xml.

The proper JSF 2.x approach for your action="#{userData.add}" is as below:

@ManagedBean
@ViewScoped
public class UserData {

    public String add() {
        // ...

        return "/badge.xhtml?faces-redirect=true";
    }

}

No additional XML mess needed. Also no action listeners.

Links to JSF 2.x tutorials/books can be found in our JSF wiki page.

See also:

• How to choose the right bean scope?
• How to navigate in JSF? How to make URL reflect current page (and not previous one)
• Differences between action and actionListener

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