javax.persistence.EntityManager.getCriteriaBuilder()LjavaxpersistencecriteriaCriteriaBuilder

概述我正在使用Hibernate 4,Spring 3和JSF 2.0和Weblogic 10.3.6我在DAO课上有以下内容 CriteriaBuilder cb = entityManager.getCriteriaBuilder(); CriteriaQuery<Request> c = cb.createQuer

我正在使用Hibernate 4,Spring 3和JsF 2.0和Weblogic 10.3.6
我在DAO课上有以下内容

        CriteriaBuilder cb = entityManager.getCriteriaBuilder();        Criteriaquery<Request> c = cb.createquery(Request.class);

运行我的应用程序时,出现以下异常.

javax.persistence.EntityManager.getCriteriaBuilder()Ljavax/persistence/criteria/CriteriaBuilder;java.lang.NoSuchMethodError: javax.persistence.EntityManager.getCriteriaBuilder()Ljavax/persistence/criteria    /CriteriaBuilder;    at net.test.request.dao.RequestDAOImpl.getRequest(RequestDAOImpl.java:51)

我没有使用JPA1罐子,但是仍然遇到此异常.无法弄清楚如何摆脱此异常.任何帮助都是非常明显的.

谢谢

pom.xml

<repositorIEs>        <repository>            <ID>prime-repo</ID>            <name>PrimeFaces Maven Repository</name>            <url>http://repository.primefaces.org</url>            <layout>default</layout>        </repository>    </repositorIEs>    <propertIEs>        <spring.version>3.1.1.RELEASE</spring.version>    </propertIEs>    <dependencIEs>        <!-- Spring 3 dependencIEs -->        <dependency>            <groupID>org.springframework</groupID>            <artifactID>spring-core</artifactID>            <version>${spring.version}</version>        </dependency>        <dependency>            <groupID>org.springframework</groupID>            <artifactID>spring-context</artifactID>            <version>${spring.version}</version>        </dependency>        <dependency>            <groupID>org.springframework</groupID>            <artifactID>spring-web</artifactID>            <version>${spring.version}</version>        </dependency>        <dependency>            <groupID>org.springframework</groupID>            <artifactID>spring-tx</artifactID>            <version>${spring.version}</version>        </dependency>        <dependency>            <groupID>org.springframework</groupID>            <artifactID>spring-orm</artifactID>            <version>${spring.version}</version>        </dependency>        <dependency>            <groupID>org.springframework</groupID>            <artifactID>spring-test</artifactID>            <version>${spring.version}</version>        </dependency>        <!-- JsF library -->        <dependency>            <groupID>com.sun.faces</groupID>            <artifactID>Jsf-API</artifactID>            <version>2.1.6</version>        </dependency>        <dependency>            <groupID>com.sun.faces</groupID>            <artifactID>Jsf-impl</artifactID>            <version>2.1.6</version>        </dependency>        <dependency>            <groupID>javax.servlet</groupID>            <artifactID>Jstl</artifactID>            <version>1.2</version>        </dependency>        <!-- Primefaces library -->        <dependency>            <groupID>org.primefaces</groupID>            <artifactID>primefaces</artifactID>            <version>3.4.2</version>        </dependency>        <dependency>            <groupID>org.primefaces.themes</groupID>            <artifactID>flick</artifactID>            <version>1.0.8</version>        </dependency>        <!-- Hibernate library -->        <dependency>            <groupID>org.hibernate</groupID>            <artifactID>hibernate-core</artifactID>            <version>4.1.0.Final</version>        </dependency>        <dependency>            <groupID>javassist</groupID>            <artifactID>javassist</artifactID>            <version>3.12.1.GA</version>        </dependency>        <dependency>            <groupID>javax.inject</groupID>            <artifactID>javax.inject</artifactID>            <version>1</version>        </dependency>        <!-- Oracle Java Connector library -->        <dependency>            <groupID>com.oracle</groupID>            <artifactID>ojdbc6</artifactID>            <version>11.2.0.3</version>        </dependency>        <dependency>            <groupID>c3p0</groupID>            <artifactID>c3p0</artifactID>            <version>0.9.1.2</version>        </dependency>        <!-- Log4j library -->        <dependency>            <groupID>log4j</groupID>            <artifactID>log4j</artifactID>            <version>1.2.16</version>        </dependency>        <dependency>            <groupID>org.testng</groupID>            <artifactID>testng</artifactID>            <version>6.4</version>        </dependency>        <dependency>            <groupID>org.hibernate</groupID>            <artifactID>hibernate-jpamodelgen</artifactID>            <version>1.2.0.Final</version>        </dependency>    </dependencIEs>    <build>        <resources>            <resource>                <directory>src/main/resources</directory>            </resource>        </resources>        <plugins>            <plugin>                <groupID>org.apache.maven.plugins</groupID>                <artifactID>maven-compiler-plugin</artifactID>                <configuration>                    <source>1.6</source>                    <target>1.6</target>                    <compilerArgument>-proc:none</compilerArgument>                </configuration>            </plugin>            <plugin>                <groupID>org.bsc.maven</groupID>                <artifactID>maven-processor-plugin</artifactID>                <executions>                    <execution>                        <ID>process</ID>                        <goals>                            <goal>process</goal>                        </goals>                        <phase>generate-sources</phase>                        <configuration>                            <!-- source output directory -->                            <outputDirectory>target/metamodel</outputDirectory>                        </configuration>                    </execution>                </executions>            </plugin>        </plugins>    </build></project>

最佳答案方法EntityManager.getCriteriaBuilder是JPA 2(属于Java EE 6的一部分)的一部分,JPA 2在WebLogic 10中默认不提供和/或未打开.

这是链接http://docs.oracle.com/cd/E17904_01/web.1111/e13720/using_toplink.htm,其中提供了可以解决您的问题的说明.如果没有,您将需要开始搜索“ weblogic 10 jpa 2”,看看是否可以找到适合您的解决方案.

如果这些解决方案都不起作用,那么您最后的选择就是将您的应用程序重新设计为仅使用JPA 1方法.要使用JPA 1,您必须将自己局限于此处定义的类和接口：http://docs.oracle.com/javaee/5/api/javax/persistence/package-summary.html

[更新]

或者-因为无论如何您都在使用Hibernate,所以不要太依赖JPA类.请改用休眠特定的类. Hibernate从3.x开始就有标准.您可以创建一个Hibernate会话工厂,而不是EntityManager.然后,您可以执行以下 *** 作：

import org.hibernate.Criteria;import org.hibernate.Session;import org.hibernate.SessionFactory;...Session session = sessionFactory.openSession();Criteria crit = session.createCriteria(Person.class);

现在,您的代码已被锁定为使用Hibernate作为持久性提供程序.就我而言,我们始终使用Hibernate,因此这不是一个真正的问题.这是您必须自己决定的问题.如果您的应用程序可以容忍被锁定在Hibernate中,那么这将为您提供仍在WebLogic上运行时所需的功能. 总结

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