对于EntityManager类型，createEntityGraph（Class<>）方法是未定义的 [英] The method createEntityGraph(Class<>) is undefined for the type EntityManager

问题描述

以下代码行：

EntityGraph<Patient> graph = this.em.createEntityGraph(Patient.class);

在eclipse中导致以下编译错误：

is causing the following compilation error in eclipse:

The method createEntityGraph(Class<SomeClass>) is undefined for the type EntityManager  

$的方法createEntityGraph（Class< SomeClass>） b $ b

如何解决此错误？

How can I resolve this error?

以下是我的pom.xml的相关部分：

Here are the relevant parts of my pom.xml:

<properties>
    <!-- Generic properties -->
    <java.version>1.7</java.version>
    <!-- Spring -->
    <spring-framework.version>4.0.6.RELEASE</spring-framework.version>
    <spring-data-jpa.version>1.6.4.RELEASE</spring-data-jpa.version>
    <!-- Hibernate / JPA -->
    <hibernate.version>4.3.5.Final</hibernate.version>
    <!-- Bean validation -->
    <hibernate-validator.version>5.1.1.Final</hibernate-validator.version>
    <!-- Database access -->
    <tomcat-jdbc.version>7.0.42</tomcat-jdbc.version>
    <mysql.version>5.1.27</mysql.version>
    <!-- AOP -->
    <aspectj.version>1.7.4</aspectj.version>
</properties>

<dependencies>
    <!-- hyperjaxb dependencies -->
    <dependency>
        <groupId>org.jvnet.hyperjaxb3</groupId>
        <artifactId>hyperjaxb3-ejb-runtime</artifactId>
        <version>0.6.0</version>
    </dependency>
    <!-- Roundtrip -->
    <dependency>
        <groupId>org.jvnet.hyperjaxb3</groupId>
        <artifactId>hyperjaxb3-ejb-roundtrip</artifactId>
        <version>0.6.0</version>
    </dependency>
    <!-- SPRING, SPRING, SPRINGITY SPRING -->
    <dependency>
        <groupId>org.springframework.data</groupId>
        <artifactId>spring-data-jpa</artifactId>
        <version>${spring-data-jpa.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jdbc</artifactId>
        <version>${spring-framework.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-aop</artifactId>
        <version>${spring-framework.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>${spring-framework.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-tx</artifactId>
        <version>${spring-framework.version}</version>
    </dependency>
    <!-- used for EhCcheCcheManager -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context-support</artifactId>
        <version>${spring-framework.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-orm</artifactId>
        <version>${spring-framework.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-oxm</artifactId>
        <version>${spring-framework.version}</version>
        <exclusions>
            <exclusion>
                <groupId>commons-lang</groupId>
                <artifactId>commons-lang</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jms</artifactId>
        <version>${spring-framework.version}</version>
    </dependency>
    <!-- Database connection pool -->
    <dependency>
        <groupId>org.apache.tomcat</groupId>
        <artifactId>tomcat-jdbc</artifactId>
        <version>${tomcat-jdbc.version}</version>
        <scope>runtime</scope>
    </dependency>
    <!-- For MySql only -->
    <dependency> 
        <groupId>mysql</groupId> 
        <artifactId>mysql-connector-java</artifactId> 
        <version>${mysql.version}</version> 
    </dependency>
    <!-- HIBERNATE -->
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-entitymanager</artifactId>
        <version>${hibernate.version}</version>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-validator</artifactId>
        <version>${hibernate-validator.version}</version>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-ehcache</artifactId>
        <version>${hibernate.version}</version>
    </dependency>
</dependencies>

此外， JPA版本设置在eclipse项目方面 2.1

In addition, the JPA version is set to 2.1 in the eclipse project facet.

推荐答案

您的jee7项目是没有正确设置你必须添加这种依赖关系：

Your jee7 project is not properly set up you have to add this dependency:

    <dependency>
        <groupId>javax</groupId>
        <artifactId>javaee-api</artifactId>
        <version>7.0</version>
        <scope>provided</scope>
    </dependency>

这篇关于对于EntityManager类型，createEntityGraph（Class&lt;&gt;）方法是未定义的的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！