JSF学习日志

Wed, 26 Nov 2014 05:38:00 GMT

1.Bean中这样写�Q�页面上直接调用

@Named("bean1") // or @ManagedBean(name="bean1") or 不指定名字，默认Bean的名�Q�sampleBean
@SessionScoped
public class SampleBean {
    public int getLuckyNumber() {  }
    public void setLuckyNumber(int value) {  }
    public String login() {
    if () return "success"; else return "error";
    }
}

��面�q�样写，直接调相应的�Ҏ��

2.��链�?br />

<h:link outcome="#{custVM.gotoDetail}" includeViewParams="true" target="_blank">
      <f:param name="scmNo" value="#{warr.project_no}"/>
      <f:param name="custNo" value="#{warr.cust_no}"/>
      <f:param name="custName" value="#{warr.cust_name}"/>
<h:outputText value="#{warr.accrued_amt}">
           <f:convertNumber currencySymbol="$" type="currency" />
      h:outputText>
h:link>

在目标页面写下面�q�个�Q�这样就可以传过来了

<f:metadata>
     <f:viewParam name="scmNo" value="#{custVM.scmNo}" />
     <f:viewParam name="custNo" value="#{custVM.custNo}" />
     <f:viewParam name="custName" value="#{custVM.custName}" />
f:metadata>

3.下拉菜单写法�Q?br />

private List monthItems; //它有自己的SelectItem �c�，用来存键值对�?/span>

    @PostConstruct
    public void init() {
        Calendar now = Calendar.getInstance();
        date = now.getTime();
        monthItems = new ArrayList();
        try {
            List monthList = amoritizateService.getMonthList();
            for(Date month:monthList){
                monthItems.add(new SelectItem(month, DateUtil.format(month, "yyyy - MM")));
            }
        } catch (Exception e) {
            LOG.error("ERROR!",e);
        }

    }

��面可以直接�q�样写：

<p:selectOneMenu value="#{amoritizateVM.date}" converter="monthItemConverter" style="width:145px">
<f:selectItems value="#{amoritizateVM.monthItems}">f:selectItems>
p:selectOneMenu>

�q�里面用��C��另外一个知识点Converter,用来转换�c�d��Q�比如这里是用来Date和String的互转，所以要写上�q�个�c?br />

/**
只要实现它的接口�Q�它会自动完成�{换，�q�是很方便的
*/
@FacesConverter("monthItemConverter")
public class MonthItemConverter implements Converter {

    private static final Logger LOG = LoggerFactory.getLogger(MonthItemConverter.class);

    @Override
    public Object getAsObject(FacesContext arg0, UIComponent arg1, String arg2) {
        return DateUtil.parseDate(arg2);
    }

    @Override
    public String getAsString(FacesContext arg0, UIComponent arg1, Object arg2) {
        return DateUtil.format((Date)arg2);
    }

}

4.表单提交的话�Q�用�q�个

<p:commandButton value="Query" update="dataForm"/>

�q�里面的update要对应这个页面里的form的id

<h:form id="dataForm">

眼镜�?/a> 2014-11-26 13:38 发表评论

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JSF学习日志