Question

我已经使用Spring和Hibernate配置了我的Web项目。下面是pom：

<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>com.medosa</groupId>
    <artifactId>MedoSa-backend</artifactId>
    <version>1</version>
    <packaging>war</packaging>
    <name>MedoSa-backend</name>
    <description>A hand for a needed hand</description>

    <properties>
        <jdk.version>1.8</jdk.version>
        <spring.version>4.3.4.RELEASE</spring.version>
        <jackson.version>1.9.13</jackson.version>
        <hibernate.version>4.3.11.Final</hibernate.version>
    </properties>

    <repositories>
        <repository>
            <id>JBoss repository</id>
            <url>http://repository.jboss.com/maven2/</url>
        </repository>
    </repositories>
    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>4.3.4.RELEASE</version>
        </dependency>

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

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

        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjrt</artifactId>
            <version>1.7.3</version>
        </dependency>

        <dependency>
            <groupId>org.codehaus.jackson</groupId>
            <artifactId>jackson-mapper-asl</artifactId>
            <version>${jackson.version}</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.9</version>
        </dependency>

        <!-- Hibernate library dependecy start -->
        <dependency>
            <groupId>com.jolbox</groupId>
            <artifactId>bonecp</artifactId>
            <version>0.8.0.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>javax.validation</groupId>
            <artifactId>validation-api</artifactId>
            <version>1.1.0.Final</version>
        </dependency>

        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.1.0</version>
        </dependency>
        <!-- Hibernate framework -->
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-core</artifactId>
            <version>${hibernate.version}</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-validator -->
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-validator</artifactId>
            <version>5.4.1.Final</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-annotations -->
        <!-- <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-annotations</artifactId>
            <version>3.5.6-Final</version>
        </dependency> -->
    </dependencies>

    <build>
        <finalName>MedoSa-Backend</finalName>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.1</version>
                <configuration>
                    <target>${jdk.version}</target>
                    <source>${jdk.version}</source>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

以下是我的dispatcher-servlet.xml文件：

http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd“＆GT;

<context:component-scan base-package="com.medosa" />
<mvc:annotation-driven />

<context:property-placeholder location="classpath:AppConfig.properties" />

<!-- BoneCP configuration -->
<bean id="dataSource" class="com.jolbox.bonecp.BoneCPDataSource"
    destroy-method="close">
    <property name="driverClass" value="${db.driverClassName}" />
    <property name="jdbcUrl" value="${db.url}" />
    <property name="username" value="${db.username}" />
    <property name="password" value="${db.password}" />
    <property name="idleConnectionTestPeriod" value="60" />
    <property name="idleMaxAge" value="240" />
    <property name="maxConnectionsPerPartition" value="30" />
    <property name="minConnectionsPerPartition" value="10" />
    <property name="partitionCount" value="3" />
    <property name="acquireIncrement" value="5" />
    <property name="statementsCacheSize" value="100" />
    <property name="releaseHelperThreads" value="3" />
</bean>

<bean id="sessionFactory"
    class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
    <property name="dataSource" ref="dataSource" />
    <property name="hibernateProperties">
        <props>
            <prop key="hibernate.dialect">${db.dialect}</prop>
            <prop key="hibernate.hbm2ddl.auto">create-drop</prop>
            <prop key="hibernate.show_sql">true</prop>
        </props>
    </property>
</bean>

<tx:annotation-driven />
<bean id="transactionManager"
    class="org.springframework.orm.hibernate4.HibernateTransactionManager">
    <property name="sessionFactory" ref="sessionFactory" />
</bean>
<bean id="hibernateTemplate" class="org.springframework.orm.hibernate4.HibernateTemplate">
    <property name="sessionFactory" ref="sessionFactory" />
</bean>
<bean id="persistenceExceptionTranslationPostProcessor"
    class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor" />

我已经创建了我的模型类。并用@Entity注释它们。我也设置了hbm2ddl属性来创建。仍然每当我尝试在服务器中部署它时，它都不会生成表。而且也没有错误。

我试图在谷歌上搜索所有解决方案，尝试过很多东西但没有用。将会感谢您的帮助

Answer 1

好像你没有添加模型类的类路径。您可以在sessionFactory中添加此内容。
在</property>标记后添加

<mapping class="<full class path>"/>

例如 - <mapping class="com.hibernate.UserDetails">

另外，检查您的控制台是否显示SQL语句。如果Table获得CREATE然后DROP，则替换

<prop key="hibernate.hbm2ddl.auto">create-drop</prop>

<prop key="hibernate.hbm2ddl.auto">create</prop>
或<prop key="hibernate.hbm2ddl.auto">update</prop> 因为

create-drop：创建一个Schema，然后在显式关闭SessionFactory时DROP该架构，通常是在应用程序停止时。

update：如果Model类中有任何更改，则创建Schema和Updates。用作数据库的更安全的选项不会被删除或数据在服务器重启时不受影响。

create：创建架构，销毁以前的数据。（仅在第一次使用它时，或者下次重新启动服务器时可能导致所有数据被销毁。

希望它有所帮助！

Spring + Hibernate - MySQL中没有创建表

1 个答案: