Question

我是初学java开发人员，我正在尝试在我已经在Hibernate 5上的项目上运行PrimeFaces 5.2上的基本CRUD。该表显示正常，但模态对话框未显示何时我点击任何按钮。我在网上尝试了很多东西，但一切似乎都没问题，所以我真的卡住了。

我真的很感激你可以解决这个问题。谢谢！

的index.html

<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.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>Gerenciador de Tarefas</title>
</h:head>
<h:body>
    <p:layout fullPage="true">
        <p:layoutUnit position="north" width="200" header="Atividades" resizable="true" closable="true" collapsible="true">
            <h:form prependId="false">
                <p:commandLink value="Nova Tarefa" actionListener="#{tarefaController.prepararAdicionarTarefa}" update="infosTarefa" oncomplete="dialogGerTarefa.show()"/>
            </h:form>
        </p:layoutUnit>

        <p:layoutUnit position="center">
            <h1>Gerenciador de Tarefas</h1>
            <br/>
            <h:form prependId="false">
                <p:dataTable id="tabela" var="tarefa" value="#{tarefaController.listarTarefas}">
                    <p:column>
                        <f:facet name="header">
                            <h:outputText value="Título"/>
                        </f:facet>
                        <h:outputText value="#{tarefa.titulo}" />
                    </p:column>
                    <p:column>
                        <f:facet name="header">
                            <h:outputText value="Prazo de execução"/>
                        </f:facet>
                        <h:outputText value="#{tarefa.prazo_execucao}"/>
                    </p:column>
                    <p:column>
                        <f:facet name="header">
                            <h:outputText value="Detalhes"/>
                        </f:facet>
                        <h:outputText value="#{tarefa.detalhes}"/>
                    </p:column>
                    <p:column>
                        <f:facet name="header">
                            <h:outputText value="Responsável"/>
                        </f:facet>
                        <h:outputText value="#{tarefa.responsavel}"/>
                    </p:column>
                    <p:column>
                        <f:facet name="header">
                            <h:outputText value="Urgente"/>
                        </f:facet>
                        <h:outputText value="#{tarefa.urgente}"/>
                    </p:column>
                    <p:column>
                        <f:facet name="header">
                            <h:outputText value="Status"/>
                        </f:facet>
                        <h:outputText value="#{tarefa.status}"/>
                    </p:column>
                    <p:column>
                        <f:facet name="header">
                            <h:outputText value="Data de conclusao"/>
                        </f:facet>
                        <h:outputText value="#{tarefa.data_conclusao}"/>
                    </p:column>

                    <p:column>
                        <f:facet name="header">
                            <h:outputText value="Descricao da conclusao"/>
                        </f:facet>
                        <h:outputText value="#{tarefa.descricao_conclusao}"/>
                    </p:column>

                    <p:column>
                        <f:facet name="header">
                            <h:outputText value="Alterar"/>
                        </f:facet>
                        <p:commandButton actionListener="#{tarefaController.prepararAlterarTarefa}" ajax="false" value="Alterar" update="infosTarefa" oncomplete="dialogGerTarefa.show()"/>
                    </p:column>

                    <p:column>
                        <f:facet name="header">
                            <h:outputText value="Excluir"/>
                        </f:facet>
                        <h:commandLink action="#{tarefaController.excluirTarefa}" value="Excluir"/>
                    </p:column>
                </p:dataTable>
            </h:form>
        </p:layoutUnit>
    </p:layout>

    <p:dialog header="Gerencia de Tarefa" widgetVar="dialogGerTarefa"  resizable="false" modal="true"  width="500">
        <h:form prependId="false">
            <h:panelGrid id="infosTarefa" columns="2" style="margin-bottom:10px">

                <h:outputLabel for="titulo" value="Título:" />
                <h:inputText id="titulo" value="#{tarefaController.tarefa.titulo}"/>

                <h:outputLabel for="prazo_execucao" value="Prazo de execução:" />
                <h:inputText id="prazo_execucao" value="#{tarefaController.tarefa.prazo_execucao}"/>

                <h:outputLabel for="detalhes" value="Detalhes:" />
                <h:inputText id="detalhes" value="#{tarefaController.tarefa.detalhes}"/>

                <h:outputLabel for="responsavel" value="Responsavel:" />
                <h:inputText id="responsavel" value="#{tarefaController.tarefa.responsavel}"/>

                <h:outputLabel for="urgente" value="Urgente:" />

                <h:selectOneMenu id="urgente" value="#{tarefaController.tarefa.urgente}">
                    <f:selectItem itemLabel="nao" itemValue="0"/>
                    <f:selectItem itemLabel="sim" itemValue="1"/>
                </h:selectOneMenu>

                <h:outputLabel for="status" value="Status:" />
                <h:inputText id="status" value="#{tarefaController.tarefa.status}"/>

                <h:outputLabel for="data_conclusao" value="Data de conclusao:" />
                <h:inputText id="data_conclusao" value="#{tarefaController.tarefa.data_conclusao}"/>

                <h:outputLabel for="descricao_conclusao" value="Descricao da conclusao:" />
                <h:inputText id="descricao_conclusao" value="#{tarefaController.tarefa.descricao_conclusao}"/>

                <p:commandButton update="tabela" oncomplete="dialogGerTarefa.hide();" actionListener="#{tarefaController.adicionarTarefa}" value="Inserir Tarefa"/>
                <p:commandButton update="tabela" oncomplete="dialogGerTarefa.hide();" actionListener="#{tarefaController.alterarTarefa}" value="Alterar Tarefa"/>

            </h:panelGrid>
        </h:form>
    </p:dialog>

</h:body>

tarefaController.java

package br.com.listadetarefas.controller;

import java.util.List;

import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
import javax.faces.event.ActionEvent;
import javax.faces.model.DataModel;
import javax.faces.model.ListDataModel;

import br.com.listadetarefas.jpa.TarefaDao;
import br.com.listadetarefas.model.Tarefa;

@ManagedBean
@SessionScoped
public class TarefaController {

    private Tarefa tarefa;
    private DataModel listaTarefas;

    public DataModel getListarTarefas() {
        List<Tarefa> lista = TarefaDao.listaTarefasComFiltro("Todas");
        listaTarefas = new ListDataModel(lista);
        return listaTarefas;
    }

    public Tarefa getTarefa() {
        return tarefa;
    }

    public void setTarefa(Tarefa tarefa) {
        this.tarefa = tarefa;
    }

    public void prepararAdicionarTarefa(ActionEvent actionEvent) {
        tarefa = new Tarefa();
    }

    public void prepararAlterarTarefa(ActionEvent actionEvent) {
        tarefa = (Tarefa) (listaTarefas.getRowData());
    }

    public String excluirTarefa() {

        Tarefa tarefaTemp = (Tarefa) (listaTarefas.getRowData());
        TarefaDao.remove(tarefaTemp.getId());
        return "index";

    }

    public void adicionarTarefa(ActionEvent actionEvent) {

        TarefaDao.adiciona(tarefa);

    }

    public void alterarTarefa(ActionEvent actionEvent) {

        TarefaDao.resolve(tarefa);

    }

}

tarefa.java

package br.com.listadetarefas.model;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;

@Entity
public class Tarefa {

    @Id
    @GeneratedValue
    private int id;

    private String titulo;
    private String prazo_execucao;
    private String detalhes;
    private String responsavel;
    private boolean urgente;
    private String status;
    private String data_conclusao;
    private String descricao_conclusao;

    public Tarefa() {
        this.status = "aberta";
    }

    public String getTitulo() {
        return titulo;
    }
    public void setTitulo(String titulo) {
        this.titulo = titulo;
    }
    public String getPrazo_execucao() {
        return prazo_execucao;
    }
    public void setPrazo_execucao(String prazo_execucao) {
        this.prazo_execucao = prazo_execucao;
    }
    public String getDetalhes() {
        return detalhes;
    }
    public void setDetalhes(String detalhes) {
        this.detalhes = detalhes;
    }
    public String getResponsavel() {
        return responsavel;
    }
    public void setResponsavel(String responsavel) {
        this.responsavel = responsavel;
    }
    public boolean isUrgente() {
        return urgente;
    }
    public void setUrgente(boolean urgente) {
        this.urgente = urgente;
    }
    public String getStatus() {
        return status;
    }
    public void setStatus(String status) {
        this.status = status;
    }
    public String getData_conclusao() {
        return data_conclusao;
    }
    public void setData_conclusao(String data_conclusao) {
        this.data_conclusao = data_conclusao;
    }
    public String getDescricao_conclusao() {
        return descricao_conclusao;
    }
    public void setDescricao_conclusao(String descricao_conclusao) {
        this.descricao_conclusao = descricao_conclusao;
    }
    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }
}

Answer 1

我认为我在commandButton上的主要问题是ajax="false"。删除它。当您执行完整请求时（仅使用ajax），没有oncomplete - 回调。

同时将dialogGerTarefa.show()替换为PF('dialogGerTarefa').show()（类似于hide（））。第一个是旧语法。

此外，我还会删除prependId="false"。 More reading。您必须在对话框中为表单指定一个固定ID，并使用例如update=":dialogformid:infosTarefa"进行更新（您可能只需执行update=":dialogformid"）。

在PrimeFaces 5上没有显示模态对话框

1 个答案: