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创建bean时出错:自动连接依赖项的注入失败



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org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'adminContactController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: nl.crossfit.crossfithoorn.dao.ContactDao nl.crossfit.crossfithoorn.controller.admin.AdminContactController.contactDao; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'contactDaoImpl': Injection of persistence dependencies failed; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'CrossfithoornPU' is defined
    org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:289)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1146)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
    org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:296)
    org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
    org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:293)
    org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
    org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:628)
    org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)
    org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)
    org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:651)
    org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:599)
    org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:665)
    org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:518)
    org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:459)
    org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)
    javax.servlet.GenericServlet.init(GenericServlet.java:158)
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
    org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)
    org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)
    org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)
    org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2466)
    org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2455)
    java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    java.lang.Thread.run(Thread.java:745)

spring-servlet.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:p="http://www.springframework.org/schema/p"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation=" http://www.springframework.org/schema/beans     
                            http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
                            http://www.springframework.org/schema/mvc 
                            http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
                            http://www.springframework.org/schema/context 
                            http://www.springframework.org/schema/context/spring-context-3.0.xsd
                            http://www.springframework.org/schema/aop
                            http://www.springframework.org/schema/spring-aop-3.0.xsd
                            http://www.springframework.org/schema/tx
                            http://www.springframework.org/schema/tx/spring-tx-3.0.xsd">
    <!-- Use @Component annotations for bean definitions -->
    <!-- The controllers are autodetected POJOs labeled with the @Controller annotation.
    Scan a package for "targets" to work on. -->
    <context:component-scan base-package="nl.crossfit.crossfithoorn.controller"/>
    <context:component-scan base-package="nl.crossfit.crossfithoorn.dao"/>
    <context:component-scan base-package="nl.crossfit.crossfithoorn.daoImpl"/>
    <context:component-scan base-package="nl.crossfit.crossfithoorn.model"/>
    <!-- Selects a static view for rendering without the need for an explicit controller / sets a default page when app is  -->
    <mvc:view-controller path="/" view-name="index"/>
    <!--???-->
    <bean id="applicationConversionService" class="org.springframework.format.support.FormattingConversionServiceFactoryBean"
          p:registerDefaultFormatters="true" />
    <!-- Turns on support for mapping requests to Spring MVC @Controller methods
    Also registers default Formatters and Validators for use across all @Controllers -->
    <mvc:annotation-driven conversion-service="applicationConversionService" />
    <!-- Allows for mapping the DispatcherServlet to "/" by forwarding static resource requests to the container's default Servlet -->
    <mvc:default-servlet-handler/>
    <!--    Add Transaction support -->
    <bean id="myTxManager" class="org.springframework.orm.jpa.JpaTransactionManager"
          p:entityManagerFactory-ref="emf" />
    <!--    <bean id="txTemplate" class="org.springframework.transaction.support.TransactionTemplate">
        <property name="transactionManager" value="myTxManager" />
    </bean>-->
    <!--    Use @Transaction annotations for managing transactions -->
    <tx:annotation-driven transaction-manager="myTxManager" />
    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
        <property name="url" value="jdbc:mysql://localhost:3306/crossfithoorn"/>
        <property name="username" value="root"/>
        <property name="password" value="nbuser"/>
    </bean>
    <!--    Add JPA support--> 
    <bean id="emf" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"
          p:persistenceUnitName="persistenceUnit">
        <property name="dataSource" ref="dataSource"/>
        <property name="jpaVendorAdapter">
            <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter" />
        </property>
    </bean>
    <!--    View resolver -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"></property>
        <property name="prefix" value="/WEB-INF/jsp/"></property>
        <property name="suffix" value=".jsp"></property>  
    </bean>   
</beans>

pom.xml

    <?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>nl.crossfit.crossfithoorn</groupId>
    <artifactId>CrossFitHoorn</artifactId>
    <version>crossfithoorn</version>
    <packaging>war</packaging>
    <name>CrossFitHoorn</name>
    <properties>
        <endorsed.dir>${project.build.directory}/endorsed</endorsed.dir>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <spring.version>3.2.6.RELEASE</spring.version>
        <hibernate.version>4.3.1.Final</hibernate.version>
        <logback.version>1.1.2</logback.version>
        <slf4j.version>1.7.5</slf4j.version>
        <querydsl.version>3.5.1</querydsl.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>3.8.1</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <version>2.5</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>
        <dependency>
            <groupId>javax.servlet.jsp</groupId>
            <artifactId>jsp-api</artifactId>
            <version>2.1</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>joda-time</groupId>
            <artifactId>joda-time</artifactId>
            <version>2.3</version>
            <type>jar</type>
        </dependency>
        <dependency>
            <groupId>org.jadira.usertype</groupId>
            <artifactId>usertype.jodatime</artifactId>
            <version>2.0.1</version>
        </dependency>
        <!--Spring-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-beans</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${spring.version}</version>
            <exclusions>
                <exclusion>
                    <groupId>commons-logging</groupId>
                    <artifactId>commons-logging</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-orm</artifactId>
            <version>${spring.version}</version>
            <type>jar</type>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>${spring.version}</version>
            <type>jar</type>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-expression</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>${spring.version}</version>
            <type>jar</type>
        </dependency>
        <!--        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-core</artifactId>
            <version>${spring_security.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-web</artifactId>
            <version>${spring_security.version}</version>
        </dependency>-->
        <!-- QueryDSL -->
        <dependency>
            <groupId>com.mysema.querydsl</groupId>
            <artifactId>querydsl-core</artifactId>
            <version>${querydsl.version}</version>
            <type>jar</type>
        </dependency>
        <dependency>
            <groupId>com.mysema.querydsl</groupId>
            <artifactId>querydsl-apt</artifactId>
            <version>${querydsl.version}</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>com.mysema.querydsl</groupId>
            <artifactId>querydsl-jpa</artifactId>
            <version>${querydsl.version}</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>1.6.1</version>
            <exclusions>
                <exclusion>
                    <groupId>org.slf4j</groupId>
                    <artifactId>slf4j-api</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <!-- MySQL JDBC connector -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.31</version>
        </dependency>
        <!-- Hibernate JPA Provider -->
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-entitymanager</artifactId>
            <version>${hibernate.version}</version>
            <exclusions>
                <exclusion>
                    <groupId>cglib</groupId>
                    <artifactId>cglib</artifactId>
                </exclusion>
                <!-- Exclude Commons Logging in favor of SLF4j -->
                <exclusion>
                    <groupId>org.apache.commons</groupId>                     <artifactId>com.springsource.org.apache.commons.logging</artifactId>
                </exclusion>
            </exclusions>
        </dependency>     
        <!-- C3P0-based implementation of the Hibernate ConnectionProvider -->
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-c3p0</artifactId>
            <version>${hibernate.version}</version>
        </dependency>
        <!-- Hibernate validator -->
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-validator</artifactId>
            <version>${hibernate.version}</version>
            <exclusions>
                <exclusion>
                    <groupId>org.slf4j</groupId>
                    <artifactId>slf4j-api</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-validator-annotation-processor</artifactId>
            <version>5.0.0.Final</version>
        </dependency>
        <dependency>
            <groupId>javassist</groupId>
            <artifactId>javassist</artifactId>
            <version>3.4.GA</version>
            <scope>runtime</scope>
        </dependency>  
        <!-- Logging dependencies  -->
        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-classic</artifactId>
            <version>${logback.version}</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>jcl-over-slf4j</artifactId>
            <version>${slf4j.version}</version>
            <scope>runtime</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.slf4j</groupId>
                    <artifactId>slf4j-api</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>jul-to-slf4j</artifactId>
            <version>${slf4j.version}</version>
            <scope>runtime</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.slf4j</groupId>
                    <artifactId>slf4j-api</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>log4j-over-slf4j</artifactId>
            <version>${slf4j.version}</version>
            <scope>runtime</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.slf4j</groupId>
                    <artifactId>slf4j-api</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>commons-fileupload</groupId>
            <artifactId>commons-fileupload</artifactId>
            <version>1.3.1</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.7.6</version>
        </dependency>
    </dependencies>    
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>2.5.1</version>
                <configuration>
                    <source>1.7</source>
                    <target>1.7</target>
                    <compilerArguments>
                        <endorseddirs>${endorsed.dir}</endorseddirs>
                    </compilerArguments>
                </configuration>
            </plugin>
            <plugin>
                <groupId>com.mysema.maven</groupId>
                <artifactId>apt-maven-plugin</artifactId>
                <version>1.0.9</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>process</goal>
                        </goals>
                        <configuration>
                            <outputDirectory>target/generated-sources/java</outputDirectory>                                <processor>com.mysema.query.apt.jpa.JPAAnnotationProcessor</processor>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
</project>

使用查询dsl联系DaoImpl

    @Service
public class ContactDaoImpl extends ServiceImpl<Contact> implements ContactDao {
    private final QContact qContact = QContact.contact;
    public ContactDaoImpl() {
        super(Contact.class, QContact.contact);
    }
    // inject database connection
    @PersistenceContext
    protected EntityManager em;
    @Override
    public List<Contact> getAllContacts() {
        return from(qContact).distinct().list(qContact);
    }
    @Override
    public Contact getById(Integer id) {
        return em.find(Contact.class, id);
    }

AdminContactController

@Controller
public class AdminContactController {
    @Autowired ContactDao contactDao;
    @RequestMapping(value = "/admin/contact/list", method = GET)
    public String adminContactPage(Model model) {
        model.addAttribute("contacts", contactDao.getAllContacts());
        return "/admin/contact/lijst";
    }
    @RequestMapping(value = "/admin/contact/view", method = GET)
    public String viewContact() {
        return "/admin/contact/view";
    }

ServiceImpl

public class ServiceImpl<T extends Object> implements Service<T> {
    public static final QContact qCcontact = QContact.contact;
    public static final QUser qUser = QUser.user;
    public static final QWod qWod = QWod.wod;
    public static final QWodWinkel qWodWinkel = QWodWinkel.wodWinkel;
    @PersistenceContext(unitName = "CrossfithoornPU")
    protected EntityManager em;
    protected final Class<T> entClass;
    protected final EntityPathBase<T> entity;
    public ServiceImpl(Class<T> entClass, EntityPathBase entity) {
        this.entClass = entClass;
        this.entity = entity;
    }
    public Class<T> getEntClass() {
        return entClass;
    }
    @Override
    public T getById(Integer id) {
        T foundEntity = em.find(entClass, id);
        if (foundEntity == null) {
            try {
                throw new ObjectRetrievalFailureException(entClass, id);
            } catch (ObjectRetrievalFailureException ex) {
                Logger.getLogger(ServiceImpl.class.getName()).log(Level.SEVERE, null, ex);
            }
        }
        return foundEntity;
    }
    @Override
    public List<T> getAll() {
        return from().list(entity);
    }
    @Override
    @Transactional
    public void deleteObj(T obj) {
        em.remove(obj);
    }
    @Override
    @Transactional
    public void delete(Integer id) {
        T foundEntity = getById(id);
        em.remove(foundEntity);
    }
    @Override
    @Transactional
    public T merge(T obj) {
        return em.merge(obj);
    }
    @Override
    @Transactional
    public void persist(T obj) {
        em.persist(obj);
    }
    @Override
    @Transactional
    public void persistAll(Collection<T> objs) {
        for (T obj : objs) {
            em.persist(obj);
        }
    }
    @Override
    public void refresh(T obj) {
        em.refresh(obj);
    }
    @Override
    public void flush() {
        em.flush();
    }
    @Override
    public void detach(T obj) {
        em.detach(obj);
    }
    /**
     * Returns a new JPAQuery object associated with the default EntityManager
     *
     */
    protected JPAQuery query() {
        return new JPAQuery(em);
    }
    public JPAQuery from() {
        return from(entity);
    }
    @Override
    public JPAQuery from(EntityPath<?> from) {
        return query().from(from);
    }
}

只需阅读日志，它就清楚了。外观：

Injection of autowired dependencies failed;
nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: nl.crossfit.crossfithoorn.dao.ContactDao nl.crossfit.crossfithoorn.controller.admin.AdminContactController.contactDao;

这里我们看到AdminContactController需要一个ContactDao的实例。

nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'contactDaoImpl': Injection of persistence dependencies failed;

在这里，日志向我们显示持久性依赖项的注入失败。

nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'CrossfithoornPU' is defined

在应用程序上下文中，您可以设置persistenceUnit:

<!-- Add JPA support --> 
<bean id="emf" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"
      p:persistenceUnitName="persistenceUnit">
    <property name="dataSource" ref="dataSource"/>
    <property name="jpaVendorAdapter">
        <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter" />
    </property>
</bean>

Spring使用指定的持久性单元名称作为默认持久性单元的名称（如果适用），并且仅在没有外部PersistenceUnitManager指定的情况下应用

错误是由于持久性单元名称引起的。看看persistence.xml怎么样？如果需要，请使用persistence.xml更新您的问题。

首先，您有两个entityManager：在ContactDaoImpl和ServiceImpl中。你只能离开第二个。第二个例外是"没有定义名为CrossfithoomPU的bean"。将此名称更改为"persistenceUnit"，因为它在xml文件中。

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