【Primefaces】commandButton/commandLink的一些注意问题

注意问题： commandButton和commandLink需要在<h:form>标签内使用才有效，默认是ajax提交，可通过ajax=‘false’来设置非ajax提交

1. MB中方法参数可以加ActionEvent actionEvent，也可以不加，都可以
   

      public void buttonAction(){

            kbService = (KBManagementService) SpringContextUtil.getBean("kbManagementService");

           kbService.addKBItem(item );

      }

2. 页面中 process的作用是局部提交，在<h:form>中不写process的话默认提交整个表单，一般这样就可以了。若使用process可控制局部提交，但是要主要先加 @this ，然后再加 子部分的id， 如： process= "@this testPanel"

代码如下：

<htmlxmlns="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 > </h:head>      

    <h:body > 

       <h:form >

               <p:growl id= "growl" life ="2000" />

               <p:panelGrid columns= "1" id ="testPanel">

                      <p:inputText value= "#{testMB.item.type}"></p:inputText >

                      <p:inputText value= "#{testMB.item.title}"></p:inputText >

                      <p:editor value= "#{testMB.item.content}" />

               </p:panelGrid>

               <p:commandButton process= "@this testPanel" value ="Submit" update="growl" actionListener= "#{testMB.buttonAction}" />

           </h:form>

       

    </h:body > 

</html>

/**

 *

 */

package com.kb.mb;

import javax.faces.bean.ManagedBean;

import javax.faces.event.ActionEvent;

import com.kb.domain.KnowledgeItem;

import com.kb.service.KBManagementService;

import com.kb.util.SpringContextUtil;

/**

 * @author shipengfei

 *

 */

@ManagedBean(name="testMB")

public class Test {

    private KBManagementService kbService;

    private KnowledgeItem item = new KnowledgeItem();

    public Test() {

        super();

    }

    public void buttonAction(){

        System.out.println("come in...");

        System.out.println("value..." + item.getTitle());

        kbService = (KBManagementService) SpringContextUtil.getBean("kbManagementService");

        kbService.addKBItem(item);

        System.out.println("end....");

    }

    public KnowledgeItem getItem() {

        return item;

    }

    public void setItem(KnowledgeItem item) {

        this.item = item;

    }

    public KBManagementService getKbService() {

        return kbService;

    }

    public void setKbService(KBManagementService kbService) {

        this.kbService = kbService;

    }

}