Java 冬眠不'；不要创建表

我正在实现一个Spring+Hibernate web应用程序。在此应用程序中，我有三个实体，如下所示：

用户：

我已将

hibernate.dialogue

设置为

org.hibernate.dialogue.mysql5innodbdialogue

和

hibernate.hbm2ddl.auto

设置为

create

当我运行tomcat时，将成功创建JPA会话，并创建表

tbl_用户

，

tbl_会话

和

tbl_用户

会话，但hibernate不会创建

tbl_消息

服务器日志：

Hibernate: 
    alter table tbl_message 
        drop 
        foreign key FK_4unouf9cqiw2e35a7mae9latk
Hibernate: 
    alter table tbl_message 
        drop 
        foreign key FK_h06m8p8o7furulj37xh4fd7s7
Hibernate: 
    alter table tbl_user_session 
        drop 
        foreign key FK_o9ow3kvh6odmn7raj1r10ninx
Hibernate: 
    alter table tbl_user_session 
        drop 
        foreign key FK_j33qeb6km5ffswqfcms9c3xqj
Hibernate: 
    drop table if exists tbl_message
Hibernate: 
    drop table if exists tbl_session
Hibernate: 
    drop table if exists tbl_user
Hibernate: 
    drop table if exists tbl_user_session
Hibernate: 
    create table tbl_message (
        messageId bigint not null,
        content varchar(255),
        mediaMessage bit not null,
        read bit not null,
        sendDate datetime,
        sent bit not null,
        sender_userId bigint,
        session_sessionId bigint,
        primary key (messageId)
    ) ENGINE=InnoDB
Hibernate: 
    create table tbl_session (
        sessionId bigint not null,
        startDate datetime,
        primary key (sessionId)
    ) ENGINE=InnoDB
Hibernate: 
    create table tbl_user (
        userId bigint not null,
        active bit not null,
        displayName varchar(255),
        joinDate datetime,
        mobile varchar(255),
        password varchar(255) not null,
        searchable bit not null,
        username varchar(255) not null,
        primary key (userId)
    ) ENGINE=InnoDB
Hibernate: 
    create table tbl_user_session (
        sessionId bigint not null,
        userId bigint not null
    ) ENGINE=InnoDB
Hibernate: 
    alter table tbl_message 
        add constraint FK_4unouf9cqiw2e35a7mae9latk 
        foreign key (sender_userId) 
        references tbl_user (userId)
Hibernate: 
    alter table tbl_message 
        add constraint FK_h06m8p8o7furulj37xh4fd7s7 
        foreign key (session_sessionId) 
        references tbl_session (sessionId)
Hibernate: 
    alter table tbl_user_session 
        add constraint FK_o9ow3kvh6odmn7raj1r10ninx 
        foreign key (userId) 
        references tbl_user (userId)
Hibernate: 
    alter table tbl_user_session 
        add constraint FK_j33qeb6km5ffswqfcms9c3xqj 
        foreign key (sessionId) 
        references tbl_session (sessionId)

任何帮助都将提前得到感谢

create table tbl_message (
    messageId bigint not null,
    content varchar(255),
    mediaMessage bit not null,
    read bit not null,
    sendDate datetime,
    sent bit not null,
    sender_userId bigint,
    session_sessionId bigint,
    primary key (messageId)
) ENGINE=InnoDB

此sql失败，因为读取是保留规则，应成为：

create table tbl_message (
    messageId bigint not null,
    content varchar(255),
    mediaMessage bit not null,
    `read` bit not null,
    sendDate datetime,
    sent bit not null,
    sender_userId bigint,
    session_sessionId bigint,
    primary key (messageId)
) ENGINE=InnoDB

---

您可以自己创建表，或者为带有注释的列指定另一个名称。

en toch。。。沃根斯uw日志。。。Hibernate:创建表tbl_message（messageId bigint not null，content varchar（255），mediaMessage bit not null，read bit not null，sendDate datetime，send bit not null，sender_userId bigint，session_sessionId bigint，主键（messageId））ENGINE=InnoDBIt根据您的日志执行。。。您可能希望尝试

update

来保存数据，而不是

create

。从日志-

create table tbl\u消息-

-这表明hibernate正在创建表。那你为什么说

hibernate不创建tbl_消息。

？可能问题是读取的是mysql中的保留字，hibernate使用的create语句没有仔细处理它，也没有引用它。谢谢，我更改了字段名，它工作得很好。

Hibernate: 
    alter table tbl_message 
        drop 
        foreign key FK_4unouf9cqiw2e35a7mae9latk
Hibernate: 
    alter table tbl_message 
        drop 
        foreign key FK_h06m8p8o7furulj37xh4fd7s7
Hibernate: 
    alter table tbl_user_session 
        drop 
        foreign key FK_o9ow3kvh6odmn7raj1r10ninx
Hibernate: 
    alter table tbl_user_session 
        drop 
        foreign key FK_j33qeb6km5ffswqfcms9c3xqj
Hibernate: 
    drop table if exists tbl_message
Hibernate: 
    drop table if exists tbl_session
Hibernate: 
    drop table if exists tbl_user
Hibernate: 
    drop table if exists tbl_user_session
Hibernate: 
    create table tbl_message (
        messageId bigint not null,
        content varchar(255),
        mediaMessage bit not null,
        read bit not null,
        sendDate datetime,
        sent bit not null,
        sender_userId bigint,
        session_sessionId bigint,
        primary key (messageId)
    ) ENGINE=InnoDB
Hibernate: 
    create table tbl_session (
        sessionId bigint not null,
        startDate datetime,
        primary key (sessionId)
    ) ENGINE=InnoDB
Hibernate: 
    create table tbl_user (
        userId bigint not null,
        active bit not null,
        displayName varchar(255),
        joinDate datetime,
        mobile varchar(255),
        password varchar(255) not null,
        searchable bit not null,
        username varchar(255) not null,
        primary key (userId)
    ) ENGINE=InnoDB
Hibernate: 
    create table tbl_user_session (
        sessionId bigint not null,
        userId bigint not null
    ) ENGINE=InnoDB
Hibernate: 
    alter table tbl_message 
        add constraint FK_4unouf9cqiw2e35a7mae9latk 
        foreign key (sender_userId) 
        references tbl_user (userId)
Hibernate: 
    alter table tbl_message 
        add constraint FK_h06m8p8o7furulj37xh4fd7s7 
        foreign key (session_sessionId) 
        references tbl_session (sessionId)
Hibernate: 
    alter table tbl_user_session 
        add constraint FK_o9ow3kvh6odmn7raj1r10ninx 
        foreign key (userId) 
        references tbl_user (userId)
Hibernate: 
    alter table tbl_user_session 
        add constraint FK_j33qeb6km5ffswqfcms9c3xqj 
        foreign key (sessionId) 
        references tbl_session (sessionId)

create table tbl_message (
    messageId bigint not null,
    content varchar(255),
    mediaMessage bit not null,
    read bit not null,
    sendDate datetime,
    sent bit not null,
    sender_userId bigint,
    session_sessionId bigint,
    primary key (messageId)
) ENGINE=InnoDB

create table tbl_message (
    messageId bigint not null,
    content varchar(255),
    mediaMessage bit not null,
    `read` bit not null,
    sendDate datetime,
    sent bit not null,
    sender_userId bigint,
    session_sessionId bigint,
    primary key (messageId)
) ENGINE=InnoDB