属性 'isPermutation' 未在 jsf 中找到

Question

我试图从 xhtml page.But 为 bean 设置一个值，每次运行页面显示错误属性而不是 found.I 添加了属性在 bean.I 中多次清理和构建项目。但没有任何效果请帮帮我。

豆子

 package com.loteria.controller;

import java.io.Serializable;

import javax.faces.bean.ManagedBean;
import javax.faces.bean.RequestScoped;


@SuppressWarnings("serial")
@ManagedBean(name="userDraw")
@RequestScoped
public class UserDrawController implements Serializable {

    boolean isPermutation;
    boolean isCombination;
    boolean isBoth;
    long per_amount;
    long per_num;
    long com_num;
    long com_amount;
    public boolean isPermutation() {
        return isPermutation;
    }
    public void setPermutation(boolean isPermutation) {
        this.isPermutation = isPermutation;
    }
    public boolean isCombination() {
        return isCombination;
    }
    public void setCombination(boolean isCombination) {
        this.isCombination = isCombination;
    }
    public boolean isBoth() {
        return isBoth;
    }
    public void setBoth(boolean isBoth) {
        this.isBoth = isBoth;
    }
    public long getPer_amount() {
        return per_amount;
    }
    public void setPer_amount(long per_amount) {
        this.per_amount = per_amount;
    }
    public long getPer_num() {
        return per_num;
    }
    public void setPer_num(long per_num) {
        this.per_num = per_num;
    }
    public long getCom_num() {
        return com_num;
    }
    public void setCom_num(long com_num) {
        this.com_num = com_num;
    }
    public long getCom_amount() {
        return com_amount;
    }
    public void setCom_amount(long com_amount) {
        this.com_amount = com_amount;
    }
    public void onChange()
    {
        System.out.print("Per is"+isPermutation);
        System.out.print("com is"+isCombination);

    }

}

XHTML

    <!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:f="http://java.sun.com/jsf/core"
    xmlns:ui="http://java.sun.com/jsf/facelets"
    xmlns:p="http://primefaces.org/ui">

<h:head>
    <title><ui:insert name="title">Loteria-Play Smart</ui:insert></title>
    <link rel="stylesheet" href="css/style.css" media="screen" type="text/css" />
    <script>
    function tb_enableDisable()
    {
        alert("heoo");
         document.getElementById('play_form:txt_per').disabled= true;
    }
</script>

</h:head>

<h:body>

    <div class="home-card">

        <div id="home-top">
            <h:form>
                <p:outputLabel style="color:white;padding-right:8px">Welcome</p:outputLabel>
                <p:outputLabel value="#{loginController.email}"></p:outputLabel>
                <p:commandLink action="#{loginController.logout}" value="Logout" styleClass="logout"></p:commandLink>
            </h:form>
        </div>
        <div id="play-center">
            <h:form id="play_form">
            <p:inputText value="#{userDraw.per_num}"></p:inputText>
                <p:outputLabel>What you want to play?</p:outputLabel>
                    <div style="margin-top: 10px">
                        <h:panelGrid columns="6" cellpadding="2" cellspacing="5"  style="margin:0 auto">
                            <p:selectBooleanCheckbox value="#{userDraw.isPermutation}">
                            <p:ajax update="play_form" listener="#{userDraw.onChange}"></p:ajax>
                            </p:selectBooleanCheckbox>
                            <h:outputText value="Permutation:" />

                            <p:selectBooleanCheckbox value="#{userDraw.isCombination}">
                            <p:ajax update="play_form" listener="#{userDrawDataController.onChange}"></p:ajax>
                            </p:selectBooleanCheckbox>
                            <h:outputText value="Combination:" />

                            <p:selectBooleanCheckbox value="#{userDraw.isBoth}" >
                            <p:ajax update="play_form" listener="#{userDraw.onChange}"></p:ajax>
                            </p:selectBooleanCheckbox>
                            <h:outputText value="Both:" />
                        </h:panelGrid>

                    </div>
                    <div style="margin-top:30px">
                    <h:panelGrid columns="1" cellpadding="2" cellspacing="2">
                        <p:outputLabel>Permuation:</p:outputLabel>
                            <h:panelGrid columns="2" cellpadding="2" cellspacing="2">
                            <p:inputText id="txt_per" placeholder="Permutation amount:" disabled="#{userDraw.isPermutation}"></p:inputText>
                            <p:inputText id="txt_pnum" placeholder="Number" disabled="#{userDraw.isPermutation}"></p:inputText>
                            <p:message for="txt_per"></p:message>
                            <p:message for="txt_pnum"></p:message>
                            </h:panelGrid>
                    </h:panelGrid>
                    <h:panelGrid columns="1" cellpadding="2" cellspacing="2">
                        <p:outputLabel>Combination:</p:outputLabel>
                            <h:panelGrid columns="2" cellpadding="2" cellspacing="2">
                            <p:inputText id="txt_comb" placeholder="Permutation amount:" disabled="#{userDraw.isCombination}"></p:inputText>
                            <p:inputText id="txt_cnum" placeholder="Number " disabled="#{userDraw.isCombination}"></p:inputText>
                            <p:message for="txt_comb"></p:message>
                            <p:message for="txt_cnum"></p:message>
                            </h:panelGrid>
                    </h:panelGrid>

                    </div>

                <h:panelGrid columns="2" cellpadding="5" cellspacing="5"
                    style="margin:0 auto;">


                    <p:commandButton value="Enter" style="width:100px"></p:commandButton>
                    <p:commandButton value="Cancel" style="width:100px"></p:commandButton>

                </h:panelGrid>

            </h:form>

        </div>






    </div>
</h:body>

</html>

Answer 1

当您的 boolean 属性被命名为 isPermutation 时，getter 应该被命名为 isIsPermutation().

如果您将属性重命名为 permutation，那么您可以将 getter 保留为 isPermutation()。

另请注意，如果您的属性类型设置为 Boolean（并且属性名称为 isPermutation，则此 getter 前缀将不起作用).在这种情况下，getter 必须命名为 getIsPermutation()。

总结一下：

boolean 属性的 getter 应以 is 开头。
Boolean（以及 Object 的其他子类型）的 getter 应该以 get 开头。
无论前缀如何，getter 名称的后缀都应该是属性名称的 UpperCamelCased 版本。

更多信息：

boolean property starting with is is not found.

属性 'isPermutation' 未在 jsf 中找到

Property 'isPermutation' not found in jsf

jsf

primefaces

jsf-2