小编las*_*cow的帖子

我正在开发一个Java EE Web应用程序.

这是我的pom.xml:

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">

<modelVersion>4.0.0</modelVersion>
<groupId>bitcoin</groupId>
<artifactId>bitcoin</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>Chens Bitcoin Webapp</name>
<url>http://maven.apache.org</url>

<properties>
    <endorsed.dir>${project.build.directory}/endorsed</endorsed.dir>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <!-- Define the version of the JBoss BOMs we want to import to specify tested stacks. -->
    <version.jboss.bom>1.0.5.CR6</version.jboss.bom>
</properties>

<repositories>
    <repository>
        <id>prime-repo</id>
        <name>Prime Repo</name>
        <url>http://repository.primefaces.org</url>
    </repository>
</repositories>

<dependencyManagement>
    <dependencies>
        <!-- Define the version of JBoss' Java EE 6 APIs we want to use -->
        <!-- JBoss distributes a complete set of Java EE 6 APIs including
            a Bill of …

我知道这已经讨论了很多,我也尝试了大部分解决方案,但我仍然遇到这个错误:

    sourceId=comboNewTaskParent[severity=(ERROR 2), summary=(comboNewTaskParent: Validation Error: Value is not valid), detail=(comboNewTaskParent: Validation Error: Value is not valid)]

这是HTML的代码:

    <h:outputLabel value="Parent task" for="comboNewTaskParent" />
                            <div class="formRight">
                                <h:selectOneMenu id="comboNewTaskParent" value="#{taskController.parentTask}" converter="#{taskConverter}"
                                    <f:selectItems value="#{comboTaskByProject}" var="task" itemValue="#{task}" itemLabel="#{task.taskName}" />
                                </h:selectOneMenu>
                            </div>

这是我的实体bean的代码:

    package com.projectportal.entity;

import java.io.Serializable;
import javax.persistence.*;
import java.util.Date;
import java.util.List;


/**
 * The persistent class for the Task database table.
 * 
 */
@Entity
@Table(name="Task")
public class Task implements Serializable {
private static final long serialVersionUID = 1L;

@Id
@Column(unique=true, nullable=false, length=36)
private …