Ich muss etwas falsch gemacht haben. Ich schaue seit Stunden, aber ich kann mein Problem nicht finden. Ich versuche, @PersistenceContext für meinen entityManager zu verwenden, aber alles, was ich bekomme, ist eine NullPointerException.Hibernate: nullPointerException auf meinem EntityManager mit @PersistenceContext
Hier ist meine Klasse und die Methode, wo ich den Fehler:
@Repository
public class ApplicationDao extends Dao
{
@PersistenceContext
private EntityManager entityManager;
[...]
public ArrayList<Application> getListApplication() {
Session session = entityManager.unwrap(Session.class);
[...]
}
[...]
}
Vielleicht ist es Konfiguration meines Frühlings ist, weil ich seit langer Zeit diesen Fehler bekam, wenn ich mein Projekt laden, aber es verursacht nie ein Problem
SEVERE: Spring context lookup failed, skipping spring component provider initialization.
Meine Konfigurationsdateien:
src/main/resources/applicationContext.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:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-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/tx
http://www.springframework.org/schema/tx/spring-tx.xsd">
<tx:annotation-driven />
<context:component-scan base-package="com.calamar.beans" />
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="org.postgresql.Driver" />
<property name="url" value="url" />
<property name="username" value="calamar" />
<property name="password" value="calamar" />
</bean>
<bean class="org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor" />
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="persistenceUnitName" value="calamar" />
<property name="dataSource" ref="dataSource" />
</bean>
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory" />
</bean>
</beans>
src/main/resources/persistence.xml
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
<persistence-unit name="calamar" transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<class>com.calamar.beans.Application</class>
<class>com.calamar.beans.Derogation</class>
<class>com.calamar.beans.DerogationFille</class>
<class>com.calamar.beans.DerogationAutre</class>
<class>com.calamar.beans.DerogationLinux</class>
<class>com.calamar.beans.DerogationOracle</class>
<class>com.calamar.beans.MatriculeUser</class>
<properties>
<property name="hibernate.dialect" value="org.hibernate.dialect.PostgreSQLDialect"/>
<property name="hibernate.id.new_generator_mappings" value="false"/>
<property name="hibernate.connection.driver_class" value="org.postgresql.Driver"/>
<property name="hibernate.connection.url" value="myUrl"/>
<property name="hibernate.connection.username" value="myUsername"/>
<property name="hibernate.connection.password" value="myPassword"/>
<property name="hibernate.default_schema" value="calamarantoine"/>
<!-- Permet de reduire le temps de lancement de entityManagerFactory -->
<property name="hibernate.temp.use_jdbc_metadata_defaults" value="false" />
</properties>
</persistence-unit>
</persistence>
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>/*Company group id*/</groupId>
<artifactId>calamar</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>calamar Maven Webapp</name>
<url>http://maven.apache.org</url>
<parent>
//Company parent group
</parent>
<dependencyManagement>
<dependencies>
<dependency>
<!-- Import dependency management from Spring Boot -->
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.4.2.RELEASE</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<!-- Jsp : Jstl -->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- Servlet api -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
</dependency>
<!-- Spring boot web-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- Spring boot test-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!-- Spring boot jpa -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<!-- Spring jersey -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jersey</artifactId>
</dependency>
<!-- PostgreSQL & Oracle -->
<dependency>
<groupId>postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>9.1-901.jdbc4</version>
</dependency>
<dependency>
<groupId>com.oracle</groupId>
<artifactId>ojdbc14</artifactId>
<version>10.2.0.3.0</version>
</dependency>
<!-- Log4j -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<!-- Gson -->
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.3.1</version>
</dependency>
<!-- company dependencies -->
</dependencies>
<build>
<finalName>calamar</finalName>
<plugins>
<!-- Maven compiler with java 1.8 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1"> <display-name>Calamar</display-name>
<display-name>Calamar</display-name>
<filter>
//Company filter
</filter>
<filter-mapping>
//[...]
</filter-mapping>
<listener>
<listener-class>
org.springframework.web.context.request.RequestContextListener
</listener-class>
</listener>
//Servlets
</web-app>
Vielen Dank für die Zeit nehmen, mir zu helfen.
Können Sie Ihre Konfiguration hinzufügen? – niekname
Ich habe meine Konfigurationsdateien dem Beitrag hinzugefügt. (Sorry, wenn ich lange antworten wollte) –