Question

我正在尝试测试我与Hibernate的连接是否在我的代码中工作，所以我设置了一个基本方法来在表中创建一个新实体。当我运行代码时，我没有看到错误，当我第一次运行它时，Hibernate成功创建了表，但是没有在表中创建行。任何人都知道为什么会发生这种情况？粘贴用户类和代码以在下面创建以及日志。

public static void main(String[] args) {
    Session session = SessionFactoryUtil.getSessionFactory().getCurrentSession();
    session.beginTransaction();
    User user = new User();
    user.setPassword("abcd");
    user.setStatus(UserStatus.OFFLINE);
    user.setUserName("testuser");
    session.save(user);
}

用户类：

    @Entity
    @Table(name="USERS")
    public class User {

    @Id
    @GeneratedValue(strategy=GenerationType.AUTO)
    @Column(name="USER_ID")
    private String userId;

    @Column(name="USER_NAME")
    private String userName;

    @Column(name="PASSWORD")
    private String password;

    @Enumerated(EnumType.STRING)
    @Column(name="STATUS")
    private UserStatus status;

    public String getUserId() {
        return userId;
    }

    public void setUserId(String userId) {
        this.userId = userId;
    }

    public String getUserName() {
        return userName;
    }

    public void setUserName(String userName) {
        this.userName = userName;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public UserStatus getStatus() {
        return status;
    }

    public void setStatus(UserStatus status) {
        this.status = status;
    }
}

日志：

[main] INFO org.hibernate.cfg.Environment - Hibernate 3.5.1-Final
[main] INFO org.hibernate.cfg.Environment - hibernate.properties not found
[main] INFO org.hibernate.cfg.Environment - Bytecode provider name : javassist
[main] INFO org.hibernate.cfg.Environment - using JDK 1.4 java.sql.Timestamp handling
[main] INFO org.hibernate.cfg.Configuration - configuring from resource: /hibernate.cfg.xml
[main] INFO org.hibernate.cfg.Configuration - Configuration resource: /hibernate.cfg.xml
[main] INFO org.hibernate.cfg.Configuration - Reading mappings from resource : messagingservice/db/User.hbm.xml
[main] INFO org.hibernate.cfg.HbmBinder - Mapping class: messagingservice.db.User -> USERS
[main] INFO org.hibernate.cfg.Configuration - Configured SessionFactory: null
[main] INFO org.hibernate.connection.DriverManagerConnectionProvider - Using Hibernate built-in connection pool (not for production use!)
[main] INFO org.hibernate.connection.DriverManagerConnectionProvider - Hibernate connection pool size: 20
[main] INFO org.hibernate.connection.DriverManagerConnectionProvider - autocommit mode: false
[main] INFO org.hibernate.connection.DriverManagerConnectionProvider - using driver: com.mysql.jdbc.Driver at URL: jdbc:mysql://localhost/CAREZONE_MESSAGING
[main] INFO org.hibernate.connection.DriverManagerConnectionProvider - connection properties: {user=hibernate, password=****}
[main] INFO org.hibernate.cfg.SettingsFactory - RDBMS: MySQL, version: 5.7.11-log
[main] INFO org.hibernate.cfg.SettingsFactory - JDBC driver: MySQL Connector Java, version: mysql-connector-java-5.1.37 ( Revision: 09940f05b4c98150f352e787a2549f11a2e9da93 )
[main] INFO org.hibernate.dialect.Dialect - Using dialect: org.hibernate.dialect.MySQL5InnoDBDialect
[main] INFO org.hibernate.transaction.TransactionFactoryFactory - Transaction strategy: org.hibernate.transaction.JDBCTransactionFactory
[main] INFO org.hibernate.transaction.TransactionManagerLookupFactory - No TransactionManagerLookup configured (in JTA environment, use of read-write or transactional second-level cache is not recommended)
[main] INFO org.hibernate.cfg.SettingsFactory - Automatic flush during beforeCompletion(): disabled
[main] INFO org.hibernate.cfg.SettingsFactory - Automatic session close at end of transaction: disabled
[main] INFO org.hibernate.cfg.SettingsFactory - JDBC batch size: 15
[main] INFO org.hibernate.cfg.SettingsFactory - JDBC batch updates for versioned data: disabled
[main] INFO org.hibernate.cfg.SettingsFactory - Scrollable result sets: enabled
[main] INFO org.hibernate.cfg.SettingsFactory - JDBC3 getGeneratedKeys(): enabled
[main] INFO org.hibernate.cfg.SettingsFactory - Connection release mode: auto
[main] INFO org.hibernate.cfg.SettingsFactory - Maximum outer join fetch depth: 2
[main] INFO org.hibernate.cfg.SettingsFactory - Default batch fetch size: 1
[main] INFO org.hibernate.cfg.SettingsFactory - Generate SQL with comments: disabled
[main] INFO org.hibernate.cfg.SettingsFactory - Order SQL updates by primary key: disabled
[main] INFO org.hibernate.cfg.SettingsFactory - Order SQL inserts for batching: disabled
[main] INFO org.hibernate.cfg.SettingsFactory - Query translator: org.hibernate.hql.ast.ASTQueryTranslatorFactory
[main] INFO org.hibernate.hql.ast.ASTQueryTranslatorFactory - Using ASTQueryTranslatorFactory
[main] INFO org.hibernate.cfg.SettingsFactory - Query language substitutions: {}
[main] INFO org.hibernate.cfg.SettingsFactory - JPA-QL strict compliance: disabled
[main] INFO org.hibernate.cfg.SettingsFactory - Second-level cache: enabled
[main] INFO org.hibernate.cfg.SettingsFactory - Query cache: disabled
[main] INFO org.hibernate.cfg.SettingsFactory - Cache region factory : org.hibernate.cache.impl.bridge.RegionFactoryCacheProviderBridge
[main] INFO org.hibernate.cache.impl.bridge.RegionFactoryCacheProviderBridge - Cache provider: org.hibernate.cache.HashtableCacheProvider
[main] INFO org.hibernate.cfg.SettingsFactory - Optimize cache for minimal puts: disabled
[main] INFO org.hibernate.cfg.SettingsFactory - Structured second-level cache entries: disabled
[main] INFO org.hibernate.cfg.SettingsFactory - Statistics: disabled
[main] INFO org.hibernate.cfg.SettingsFactory - Deleted entity synthetic identifier rollback: disabled
[main] INFO org.hibernate.cfg.SettingsFactory - Default entity-mode: pojo
[main] INFO org.hibernate.cfg.SettingsFactory - Named query checking : enabled
[main] INFO org.hibernate.cfg.SettingsFactory - Check Nullability in Core (should be disabled when Bean Validation is on): enabled
[main] INFO org.hibernate.impl.SessionFactoryImpl - building session factory
[main] INFO org.hibernate.impl.SessionFactoryObjectFactory - Not binding factory to JNDI, no JNDI name configured
[main] INFO org.hibernate.tool.hbm2ddl.SchemaExport - Running hbm2ddl schema export
[main] INFO org.hibernate.tool.hbm2ddl.SchemaExport - exporting generated schema to database
[main] INFO org.hibernate.tool.hbm2ddl.SchemaExport - schema export complete

Answer 1

您没有提交交易。你需要这样做：

public static void main(String[] args) {
    Session session = SessionFactoryUtil.getSessionFactory().getCurrentSession();

    Transaction tx = session.beginTransaction();

    User user = new User();
    user.setPassword("abcd");
    user.setStatus(UserStatus.OFFLINE);
    user.setUserName("testuser");

    session.save(user);
    tx.commit();
    session.close();
}

Hibernate创建表但不创建条目？

1 个答案: