Question

关于 primefaces 对话框架的另一篇文章。

我一直在看所有这些帖子：

Primefaces Dialog Framework - Not Working

primefaces dialog using dialog framework not popping up

Primefaces dialog framework not working while using ajax listener

我一直在尝试所有这些但仍然没有显示对话框。\

我正在使用primefaces 5.1。

让我补充一些细节。

带有应该调用对话框的按钮的页面：

<!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:form>
      <p:commandButton 
         value="prova popup" 
         actionListener="#{codTribEr.chooseCodiceErario('/popup/codice-erario.xhtml')}">
      </p:commandButton>
  </h:form>

</html>

Java代码：

package it.iwb.ubiss.poc.popup;

import java.io.Serializable;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.ViewScoped;
import org.primefaces.context.RequestContext;

@ManagedBean(name="codTribEr")
@ViewScoped
public class CodiceTributoErario implements Serializable{

    private static final long serialVersionUID = 1L;

    public void chooseCodiceErario(String s) {
            RequestContext.getCurrentInstance().openDialog(s);
    }
}

Answer 1

使用不正确的JSF结构。

您没有使用JSF标准代码（h：head，h：body）。
传递不能通过actionListener的参数传递参数，因为actionListener只接受ActionEvent参数。如果要通过actionListener传递参数，可以通过f:attribute

示例代码如下所示。

XHTML

<?xml version="1.0" encoding="UTF-8"?>

<!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:p="http://primefaces.org/ui">
    <h:head>
        <title>prova popup</title>
    </h:head>

    <h:body>
        <h:form>
            <p:commandButton value="prova popup" 
                             actionListener="#{codTribEr.chooseCodiceErario}"
                             >
                <f:attribute name="url" value="/popup/codice-erario.xhtml" />
            </p:commandButton>
        </h:form>
    </h:body>

</html>

managedbean

package it.iwb.ubiss.poc.popup;

import java.io.Serializable;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.ViewScoped;
import javax.faces.event.ActionEvent;
import org.primefaces.context.RequestContext;

@ManagedBean(name = "codTribEr")
@ViewScoped
public class CodiceTributoErario implements Serializable {

    private static final long serialVersionUID = 1L;

    public void chooseCodiceErario(ActionEvent event) {
        String url = (String)event.getComponent().getAttributes().get("url");
        System.out.println(url);
        RequestContext.getCurrentInstance().openDialog(url);
    }
}

codice-erario.xhtml

<?xml version="1.0" encoding="UTF-8"?>

<!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:p="http://primefaces.org/ui">
    <h:head>
        <title>codice-erario</title>
    </h:head>

    <h:body>
        Show codice-erario.xhtml
    </h:body>

</html>

Primefaces对话框架没有显示出来

1 个答案: