使用p:commandButton jsf提交表单
我有一个关于使用使用p:commandButton jsf提交表单,jsf,jsf-2,primefaces,Jsf,Jsf 2,Primefaces,我有一个关于使用p:commandbutton提交表单内容的问题,该按钮倾向于以ajax方式工作 如果我有这样的代码: <f:verbatim rendered="#{myBean.constructor}"></f:verbatim > <h:form prependId="false"> .... ..... <p:commandButton value="#{msg.Add
p:commandbutton
提交表单内容的问题,该按钮倾向于以ajax方式工作
如果我有这样的代码:
<f:verbatim rendered="#{myBean.constructor}"></f:verbatim >
<h:form prependId="false">
....
.....
<p:commandButton value="#{msg.Add_Parameter_Set}" update="addParameterSetPnl,msgs" action="#{myBean.initNewParametersSet}"/>
</h:form>
....
.....
当使用命令按钮提交表单时,是否会调用f:verbatim中的getconstructor方法(我会更新表单的不同部分)?我如何防止它被调用
我认为提交表单时,只会呈现表单的内容/由
update
参数指定的内容。它不应该有害。如果你在那里做昂贵的事情,那么你应该把它移动到构造函数,@PostConstruct
或相关bean的操作方法,或者引入延迟加载或阶段嗅探
// In Constructor..
public Bean() {
constructed = getItSomehow();
}
// ..or @PostConstruct..
@PostConstruct
public void init() {
constructed = getItSomehow();
}
// ..or action method..
public String submit() {
constructed = getItSomehow();
return "outcome";
}
// ..or lazy loading..
public boolean getConstructed() {
if (constructed == null) constructed = getItSomehow();
return constructed;
}
// ..or phase sniffing (this one updates during render response only).
public boolean getConstructed() {
if (FacesContext.getCurrentInstance().getRenderResponse()) constructed = getItSomehow();
return constructed;
}
另见
- 它不应该有害。如果你在那里做昂贵的事情,那么你应该把它移动到构造函数,
@PostConstruct
或相关bean的操作方法,或者引入延迟加载或阶段嗅探
// In Constructor..
public Bean() {
constructed = getItSomehow();
}
// ..or @PostConstruct..
@PostConstruct
public void init() {
constructed = getItSomehow();
}
// ..or action method..
public String submit() {
constructed = getItSomehow();
return "outcome";
}
// ..or lazy loading..
public boolean getConstructed() {
if (constructed == null) constructed = getItSomehow();
return constructed;
}
// ..or phase sniffing (this one updates during render response only).
public boolean getConstructed() {
if (FacesContext.getCurrentInstance().getRenderResponse()) constructed = getItSomehow();
return constructed;
}
另见