Question

我有2页，inputForm.xhtml和outputPage.xhtml。

在inputForm.xhtml中，有1个文本字段和1个复选框。当用户单击“提交”按钮时，值将传递到URL中的outputPage.xhtml。

可以正确传递textfield的值。但是，无论是否选中复选框，URL中的参数始终为false。

e.g。 http://localhost:8080/jsf-web/outputPage.xhtml?c=false&n=franz

我正在使用myFaces 2.1.13。我真的不知道如何解决这个问题。感谢。

inputForm.xhtml

<html xmlns="http://www.w3.org/1999/xhtml"
    xmlns:f="http://java.sun.com/jsf/core"
    xmlns:h="http://java.sun.com/jsf/html">

<f:metadata>
    <f:viewParam name="n" value="#{inputFormBean.name}" />
    <f:viewParam name="c" value="#{inputFormBean.nameUppercase}" />
</f:metadata>

<h:head>
</h:head>
<h:body>
    <h:form>
        <p>Name: <h:inputText value="#{inputFormBean.name}" /></p>
        <p>Name uppercase: <h:selectBooleanCheckbox value="#{inputFormBean.nameUppercase}"/></p>
        <p><h:commandButton action="output_page" value="Submit" /></p>
    </h:form>
</h:body>
</html>

outputPage.xhtml

<html xmlns="http://www.w3.org/1999/xhtml"
    xmlns:f="http://java.sun.com/jsf/core"
    xmlns:h="http://java.sun.com/jsf/html">

<f:metadata>
    <f:viewParam name="n" value="#{outputPageBean.name}" />
    <f:viewParam name="c" value="#{outputPageBean.nameUppercase}" />
</f:metadata>

<h:head>
</h:head>
<h:body>
    <h3>Welcome #{outputPageBean.nameUppercase ? outputPageBean.name.toUpperCase() : outputPageBean.name}!!</h3>
</h:body>
</html>

faces-config.xml

<?xml version="1.0"?>
<faces-config xmlns="http://java.sun.com/xml/ns/javaee" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-facesconfig_2_0.xsd" 
    version="2.0">

    <navigation-rule>
        <from-view-id>*</from-view-id>
        <navigation-case>
            <from-outcome>output_page</from-outcome>
            <to-view-id>/outputPage.xhtml</to-view-id>
            <redirect include-view-params="true"/>
        </navigation-case>
    </navigation-rule>
</faces-config>

InputFormBean.java

package com.franzwong.jsfweb;

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

@ManagedBean
@RequestScoped
public class InputFormBean {
    private String name;
    private boolean nameUppercase;

    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public boolean isNameUppercase() {
        return nameUppercase;
    }
    public void setNameUppercase(boolean nameUppercase) {
        this.nameUppercase = nameUppercase;
    }
}

OutputPageBean.java

package com.franzwong.jsfweb;

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

@ManagedBean
@RequestScoped
public class OutputPageBean {
    private String name;
    private boolean nameUppercase;

    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public boolean isNameUppercase() {
        return nameUppercase;
    }
    public void setNameUppercase(boolean nameUppercase) {
        this.nameUppercase = nameUppercase;
    }
}

Answer 1

最后我尝试了原始的int，无论我输入什么值，都会传递给0。

因此，我尝试使用Boolean，Integer并发现我输入的值可以在URL中正确传递。

无法在URL中传递布尔值

1 个答案: