在 primefaces JSF 中使用模板答案

【问题标题】：using templates in primefaces JSF在 primefaces JSF 中使用模板
【发布时间】：2013-04-13 22:14:10
【问题描述】：

我有主页 index.xhtml 声明放置内容的位置取决于点击的页面。

            <br>
            <div id="centerContent">
        <ui:insert name="centerContent" >
              <ui:param name="mainTag" value="" />
        <ui:include src="/template/commonContent.xhtml" />
        </ui:insert>
                <h4>#{mainTag}</h4>
           </div>
            </br><br></br>
            <p:panel id="content">
                        <h:form>
    <h:inputText id="namez" ></h:inputText>
</h:form>
            </p:panel>       
        </p:layoutUnit>

我的模板 commonContent 是：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"   
      xmlns:ui="http://java.sun.com/jsf/facelets"
      >
    <body>
        <ui:composition>
        <h1>Ubezpieczamy najlepiej!</h1>
        </ui:composition>
    </body>
</html>

发送邮件的页面是：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"   
      xmlns:h="http://java.sun.com/jsf/html"
      xmlns:ui="http://java.sun.com/jsf/facelets"
      >
    <h:body>

        <ui:composition template="index.xhtml">

            <ui:define name="centerContent">
                <h2>Zapytaj</h2>
                        <h:commandButton actionListener="#{mySendBean.sendMail2()}" value="Welcome Me">
            </h:commandButton>
                        <ui:param name="mainTag" value="Z chęcią odpowiemy" />
            </ui:define>


        </ui:composition>

    </h:body>

当 commandButton 放在主页上时，它可以工作，发送电子邮件，但是当通过模板加载时它不起作用。一切正常，但不是<h:commandButton actionListener="#{mySendBean.sendMail2()}" value="Welcome Me">。 为什么通过点击模板加载时不起作用？

豆码：

import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
import javax.mail.*;
import org.apache.commons.mail.DefaultAuthenticator;
import org.apache.commons.mail.Email;
import org.apache.commons.mail.EmailException;
import org.apache.commons.mail.SimpleEmail;


/**
 *
 * @author root
 */
@ManagedBean
@SessionScoped
public class mySendBean {

    private myEmailSend mE;
    /**
     * Creates a new instance of mySendBean
     */
    public mySendBean() {
        mE=new myEmailSend();
    }

    private static int j;

    /**
     * Get the value of j
     *
     * @return the value of j
     */
    public int getJ() {
        return j;
    }

    /**
     * Set the value of j
     *
     * @param j new value of j
     */
    public void setJ(int j) {
        this.j = j;
    }

        private String name="iop";

    /**
     * Get the value of name
     *
     * @return the value of name
     */
    public String getName() {
        return name;
    }

    /**
     * Set the value of name
     *
     * @param name new value of name
     */
    public void setName(String name) {
        this.name = name;
        sendMail2();
    }

    public String getSayWelcome(){
       //check if null?
       if("".equals(name) || name ==null){
        return "";
       }else{
        return "Ajax message : Welcome " + name;
       }
    }

    public void setSendMail(){
        sendMail2();
    }
    public void sendMail2(){ 
        j=getJ();
        setJ(++j);

        Email email = new SimpleEmail();
        try {
        //send mail
    }
}

【问题讨论】：

标签： jsf primefaces managed-bean

【解决方案1】：

必须在<h:form>中包含内容：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"   
      xmlns:h="http://java.sun.com/jsf/html"
      xmlns:ui="http://java.sun.com/jsf/facelets"
      >
    <h:body>

        <ui:composition template="index.xhtml">

            <ui:define name="centerContent">
                    <h:form>
                        <ui:param name="mainTag" value="Z chęcią odpowiemy" />
                <h2>Zapytaj</h2>
                        <h4>#{mainTag}</h4>
                        <h:commandButton actionListener="#{mySendBean.sendMail2()}" value="Welcome Me">
            </h:commandButton>
                    </h:form>
            </ui:define>


        </ui:composition>

    </h:body>

</html>

【讨论】：