Spring MVC和Hibernate集成

我在集成Spring MVC和Hibernate時遇到了問題。Spring MVC和Hibernate集成

我假設我缺少一些配置來告訴Spring使用Hibernate，因爲在運行應用程序時沒有任何錯誤，但數據庫沒有用我的實體更新。

在main/webapp/WEB-INF，我有3個配置文件：

的web.xml

<web-app version="2.4" 
    xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee 
    http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> 

    <display-name>Spring MVC Application</display-name> 

    <servlet> 
     <servlet-name>mvc-dispatcher</servlet-name> 
     <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> 
     <load-on-startup>1</load-on-startup> 
    </servlet> 

    <servlet-mapping> 
     <servlet-name>mvc-dispatcher</servlet-name> 
     <url-pattern>*.htm</url-pattern> 
    </servlet-mapping> 

    <context-param> 
     <param-name>contextConfigLocation</param-name> 
     <param-value> 
      /WEB-INF/mvc-dispatcher-servlet.xml, 
      /WEB-INF/spring-configuration.xml 
     </param-value> 
    </context-param> 
</web-app>

MVC-調度-servlet.xml中

<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:mvc="http://www.springframework.org/schema/mvc" 
     xsi:schemaLocation="http://www.springframework.org/schema/beans 
     http://www.springframework.org/schema/beans/spring-beans.xsd 
     http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd"> 

    <context:component-scan base-package="org.mypackage.controller"/> 
    <context:annotation-config/> 
    <mvc:annotation-driven/> 

    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> 
     <property name="prefix" value="/WEB-INF/pages/"/> 
     <property name="suffix" value=".jsp"/> 
    </bean> 

</beans>

彈簧-configuration.xml文件

<?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:jpa="http://www.springframework.org/schema/data/jpa" 
     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/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd 
     "> 

    <!-- Placeholder config --> 
    <context:property-placeholder location="classpath:database.properties" /> 

    <jpa:repositories base-package="org.mypackage.dao"/> 

    <!-- Data source --> 
    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> 
     <property name="driverClassName" value="${jdbc.driverClassName}" /> 
     <property name="url" value="${jdbc.url}" /> 
     <property name="username" value="${jdbc.username}" /> 
     <property name="password" value="${jdbc.password}" /> 
    </bean> 

    <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"> 
     <property name="dataSource" ref="dataSource" /> 
     <property name="packagesToScan" value="org.mypackage.model" /> 
     <property name="jpaProperties"> 
      <props> 
       <prop key="hibernate.dialect">${hibernate.dialect}</prop> 
       <prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop> 
       <prop key="hibernate.show_sql">${hibernate.show_sql}</prop> 
       <prop key="hibernate.format_sql">${hibernate.format_sql}</prop> 
      </props> 
     </property> 
    </bean> 

    <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager"> 
     <property name="entityManagerFactory" ref="entityManagerFactory" /> 
    </bean> 
</beans>

的database.properties：

jdbc.driverClassName=com.mysql.jdbc.Driver 
jdbc.url=jdbc:mysql://localhost:3306/database 
jdbc.username=root1 
jdbc.password=password 

hibernate.dialect=org.hibernate.dialect.MySQLDialect 
hibernate.hbm2ddl.auto=update 
hibernate.show_sql=false 
hibernate.format_sql=true

在org.mypackage.model包，我有@Entity註解的類。數據庫存在，用戶也存在。當我運行我的應用程序時，數據庫不會更新與我的類相對應的新表。我怎樣才能解決這個問題？

編輯1：

輸出運行應用程序時（服務器啓動忽略，沒有錯誤）：

INFO: Server startup in 157 ms 
Connected to server 
[2015-10-11 04:17:57,948] Artifact project:war exploded: Artifact is being deployed, please wait... 
2015-10-11 16:18:00,274 INFO DispatcherServlet:484 - FrameworkServlet 'mvc-dispatcher': initialization started 
2015-10-11 16:18:00,298 INFO XmlWebApplicationContext:510 - Refreshing WebApplicationContext for namespace 'mvc-dispatcher-servlet': startup date [Sun Oct 11 16:18:00 CEST 2015]; root of context hierarchy 
2015-10-11 16:18:00,342 INFO XmlBeanDefinitionReader:317 - Loading XML bean definitions from ServletContext resource [/WEB-INF/mvc-dispatcher-servlet.xml] 
2015-10-11 16:18:01,066 INFO RequestMappingHandlerMapping:220 - Mapped "{[/person/add],methods=[],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public org.springframework.web.servlet.ModelAndView org.mypackage.controller.PersonController.home() 
2015-10-11 16:18:01,067 INFO RequestMappingHandlerMapping:220 - Mapped "{[/person/save],methods=[POST],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public java.lang.String org.mypackage.controller.PersonController.save(org.mypackage.model.Person,org.springframework.validation.BindingResult) 
2015-10-11 16:18:01,069 INFO RequestMappingHandlerMapping:220 - Mapped "{[/hello],methods=[],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public org.springframework.web.servlet.ModelAndView org.mypackage.controller.HelloController.hello() 
2015-10-11 16:18:01,119 INFO Version:27 - HV000001: Hibernate Validator 5.0.3.Final 
2015-10-11 16:18:01,342 INFO RequestMappingHandlerAdapter:523 - Looking for @ControllerAdvice: WebApplicationContext for namespace 'mvc-dispatcher-servlet': startup date [Sun Oct 11 16:18:00 CEST 2015]; root of context hierarchy 
2015-10-11 16:18:01,386 INFO RequestMappingHandlerAdapter:523 - Looking for @ControllerAdvice: WebApplicationContext for namespace 'mvc-dispatcher-servlet': startup date [Sun Oct 11 16:18:00 CEST 2015]; root of context hierarchy 
2015-10-11 16:18:01,492 INFO DispatcherServlet:503 - FrameworkServlet 'mvc-dispatcher': initialization completed in 1215 ms 
[2015-10-11 04:18:01,516] Artifact project:war exploded: Artifact is deployed successfully 
[2015-10-11 04:18:01,516] Artifact project:war exploded: Deploy took 3 568 milliseconds 
2015-10-11 16:18:02,723 WARN PageNotFound:1120 - No mapping found for HTTP request with URI [/] in DispatcherServlet with name 'mvc-dispatcher'

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>com.springapp</groupId> 
    <artifactId>project</artifactId> 
    <packaging>war</packaging> 
    <version>1.0-SNAPSHOT</version> 
    <name>project</name> 

    <properties> 
     <spring.version>4.1.1.RELEASE</spring.version> 
    </properties> 

    <dependencies> 
     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-core</artifactId> 
      <version>${spring.version}</version> 
     </dependency> 

     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-web</artifactId> 
      <version>${spring.version}</version> 
     </dependency> 

     <dependency> 
      <groupId>javax.servlet</groupId> 
      <artifactId>servlet-api</artifactId> 
      <version>2.5</version> 
      <scope>provided</scope> 
     </dependency> 

     <dependency> 
      <groupId>javax.servlet.jsp</groupId> 
      <artifactId>jsp-api</artifactId> 
      <version>2.1</version> 
      <scope>provided</scope> 
     </dependency> 

     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-webmvc</artifactId> 
      <version>${spring.version}</version> 
     </dependency> 

     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-test</artifactId> 
      <version>${spring.version}</version> 
      <scope>test</scope> 
     </dependency> 

     <dependency> 
      <groupId>junit</groupId> 
      <artifactId>junit</artifactId> 
      <version>4.11</version> 
      <scope>test</scope> 
     </dependency> 

     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-context-support</artifactId> 
      <version>${spring.version}</version> 
     </dependency> 

     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-orm</artifactId> 
      <version>${spring.version}</version> 
     </dependency> 

     <dependency> 
      <groupId>org.hibernate.javax.persistence</groupId> 
      <artifactId>hibernate-jpa-2.0-api</artifactId> 
      <version>1.0.1.Final</version> 
     </dependency> 

     <dependency> 
      <groupId>org.hibernate</groupId> 
      <artifactId>hibernate-entitymanager</artifactId> 
      <version>4.1.9.Final</version> 
      <scope>runtime</scope> 
     </dependency> 

     <dependency> 
      <groupId>org.slf4j</groupId> 
      <artifactId>slf4j-log4j12</artifactId> 
      <version>1.7.2</version> 
     </dependency> 

     <dependency> 
      <groupId>org.springframework.data</groupId> 
      <artifactId>spring-data-jpa</artifactId> 
      <version>1.3.0.RELEASE</version> 
     </dependency> 

     <dependency> 
      <groupId>org.hibernate</groupId> 
      <artifactId>hibernate-validator</artifactId> 
      <version>5.0.3.Final</version> 
     </dependency> 

     <dependency> 
      <groupId>mysql</groupId> 
      <artifactId>mysql-connector-java</artifactId> 
      <version>5.1.6</version> 
     </dependency> 


    </dependencies> 

    <build> 
     <finalName>project</finalName> 
     <plugins> 
      <plugin> 
       <artifactId>maven-compiler-plugin</artifactId> 
       <configuration> 
        <source>1.6</source> 
        <target>1.6</target> 
       </configuration> 
      </plugin> 
      <plugin> 
       <artifactId>maven-surefire-plugin</artifactId> 
       <configuration> 
        <includes> 
         <include>**/*Tests.java</include> 
        </includes> 
       </configuration> 
      </plugin> 
     </plugins> 
    </build> 
</project>

來源

2015-10-11 RK1

您可以發佈日誌輸出當您啓動應用？ – Romulo

你爲什麼使用LocalContainerEntityManagerFactoryBean？這產生一個容器管理的EntityManagerFactory。看一下'LocalEntityManagerFactoryBean' - 應用程序管理的EntityManagerFactory –

從來就創建使用春4.1.1一個簡單的應用程序.RELEASE。

應用程序從App.class的主要方法運行。

使用的配置與您的配置類似，唯一的區別是數據庫選擇（postgresql而不是mysql）。

在該示例中，創建了一個名爲jpaVendorAdapter的附加bean。配置如下：

<bean id="jpaVendorAdapter" class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"> 
    <property name="showSql" value="true"/> 
    <property name="generateDdl" value="true"/> 
    <property name="databasePlatform" value="org.hibernate.dialect.PostgreSQL9Dialect"/> 
</bean>

com.stackoverflow。應用

public class App { 

    public static void main(String[] args) { 
     new ClassPathXmlApplicationContext("spring/Datasource.xml"); 
    } 

}

資源/屬性/ database.properties

jdbc.driverClassName=org.postgresql.Driver 
jdbc.url=jdbc:postgresql://localhost:5432/spring 
jdbc.username=postgres 
jdbc.password=abc123

資源/春/ Datasource.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" 
     xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> 

    <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> 
     <property name="location"> 
      <value>properties/database.properties</value> 
     </property> 
    </bean> 

    <bean id="dataSource" 
      class="org.springframework.jdbc.datasource.DriverManagerDataSource"> 
     <property name="driverClassName" value="${jdbc.driverClassName}"/> 
     <property name="url" value="${jdbc.url}"/> 
     <property name="username" value="${jdbc.username}"/> 
     <property name="password" value="${jdbc.password}"/> 
    </bean> 

    <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"> 
     <property name="dataSource" ref="dataSource"/> 
     <property name="packagesToScan" value="com.stackoverflow.model"/> 
     <property name="jpaVendorAdapter" ref="jpaVendorAdapter"/> 
     <property name="jpaProperties"> 
      <props> 
       <prop key="hibernate.dialect">${hibernate.dialect}</prop> 
       <prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop> 
       <prop key="hibernate.show_sql">${hibernate.show_sql}</prop> 
       <prop key="hibernate.format_sql">${hibernate.format_sql}</prop> 
      </props> 
     </property> 
    </bean> 

    <bean id="jpaVendorAdapter" class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"> 
     <property name="showSql" value="true"/> 
     <property name="generateDdl" value="true"/> 
     <property name="databasePlatform" value="org.hibernate.dialect.PostgreSQL9Dialect"/> 
    </bean> 

</beans>

來源

2015-10-11 14:40:42 Romulo

謝謝你，完美的工作！然而，還有一個問題。 Datasource.xml上下文文件是否可以從另一個.xml文件加載？或者只從'main（）'方法？ – RK1

當然可以！像往常一樣，您可以從其他XML文件加載。只需使用' – Romulo

你可以改變你的屬性此

hibernate.hbm2ddl.auto=update

至此

hibernate.hbm2ddl.auto=create

您的數據庫將從零創建。在做這件事之前，您可能需要備份您的db。

來源

2015-10-11 13:53:18

這沒有用。當應用程序啓動時，我也無法在日誌中看到與Hibernate相關的任何內容。我如何以其他方式測試連接來解決問題？ – RK1

您是否嘗試過使用「annotatedClasses」屬性？我記得以前有同樣的問題，因爲它似乎並沒有得到註釋類，所以我與物業解決它，下面的用法：

<bean id="sessionFactory" 
    class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean"> 
     <property name="dataSource" ref="dataSource" /> 
     <property name="hibernateProperties"> 
      <value> 
       hibernate.dialect = org.hibernate.dialect.MySQL5InnoDBDialect 
       hibernate.format_sql = true 
       hibernate.show_sql = true 
       hibernate.hbm2ddl.auto = create 
      </value> 
     </property> 
     <property name="annotatedClasses"> 
      <list> 
       <value>org.company.project.model.User</value> 
       <value>org.company.project.model.Document</value> 
      </list> 
     </property> 
     <!-- <property name="packagesToScan"> --> 
     <!-- <list> --> 
     <!-- <value>org.company.project.model</value> --> 
     <!-- </list> --> 
     <!-- </property> --> 
    </bean>

來源

2015-10-11 14:11:32 munilvc

Spring MVC和Hibernate集成

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