Question

在数据库中：有一个字段，其类型为TINYINT（1），默认值为0.在Model中，它定义为TINYINT（1）DEFAULT 0.但是它给出了如下错误：

错误

[jar:file:/C:/workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/NetaCommerceFrameworkAdmin/WEB-INF/lib/NetaCommerceFramework-0.0.1-SNAPSHOT.jar!/com/netasoft/commerce/framework/lang/dao/LangDaoImpl.class]: Unsatisfied dependency expressed through constructor argument with index 0 of type 
[org.hibernate.SessionFactory]: :Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/spring/admin-hibernate.xml]: Invocation of init method failed; nested exception is org.hibernate.HibernateException: Wrong column type in kaft.nc_alert_log for column alerted. Found: bit, expected: TINYINT(1) DEFAULT 0; nested exception is 
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/spring/admin-hibernate.xml]: Invocation of init method failed; nested exception is org.hibernate.HibernateException: Wrong column type in kaft.nc_alert_log for column alerted. Found: bit, expected: TINYINT(1) DEFAULT 0

模型定义

@Column(name="alerted", columnDefinition = "TINYINT(1) DEFAULT 0")
private int alerted;

public int getAlerted() {
    return alerted;
}

public void setAlerted(int alerted) {
    this.alerted = alerted;
}

Db.properties

hibernate.hbm2ddl.auto=validate
#hibernate.hbm2ddl.auto=create-drop
hibernate.hbm2ddl.import_files=/import_standard.sql
hibernate.show_sql=false
hibernate.format_sql=true
hibernate.generate_statistics=false
hibernate.use_sql_comments=true
hibernate.query.factory_class=org.hibernate.hql.ast.ASTQueryTranslatorFactory
hibernate.cache.use_query_cache=true
hibernate.cache.region.factory_class=net.sf.ehcache.hibernate.SingletonEhCacheRegionFactory
hibernate.cache.use_second_level_cache=true
#-------------------------------------------------------------------------------
# MySQL Settings

jdbc.driverClassName=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/xxx?autoReconnect=true
jdbc.username=xxx
jdbc.password=xxx

# Property that determines which Hibernate dialect / MySQL5Dialect || MySQLDialect
hibernate.dialect=org.hibernate.dialect.MySQL5Dialect

方言版本

2013-01-17 08:45:36,920 INFO [org.hibernate.cfg.SettingsFactory] - Database ->
       name : MySQL
    version : 5.0.96-community-nt
      major : 5
      minor : 0
2013-01-17 08:45:36,921 INFO [org.hibernate.cfg.SettingsFactory] - Driver ->
       name : MySQL-AB JDBC Driver
    version : mysql-connector-java-5.1.12 ( Revision: ${bzr.revision-id} )
      major : 5
      minor : 1

它也在服务器和另一台计算机上运行。但是在我的计算机和安装的新计算机上只是为了尝试它会产生同样的错误。我正在谷歌搜索几天，无法弄清楚是什么问题。在模型中尝试了boolean columnDefinition并更改了MySqlDialect定义但是没有任何改变。甚至错误信息都是一样的。

Answer 1

将BIT用作columnDefinition

这对我有用：

@Column(name = "my_field",columnDefinition = "BIT")
private int myField;

Answer 2

将@Type注释添加到警报字段，如下所示：

@org.hibernate.annotations.Type(type="true_false")
@Column(name="alerted", columnDefinition = "TINYINT(1) DEFAULT 0")
private int alerted;

Answer 3

您可以使用tinyInt1isBit = false mysql驱动程序参数。即jdbc：mysql：// localhost？tinyInt1isBit = false

http://dev.mysql.com/doc/refman/5.5/en/connector-j-reference-configuration-properties.html

这可以防止驱动程序将tinyint（1）列报告为java.sql.Type.BIT

但是如果它们在DB中表示为tinyint（1），你可能会开始遇到布尔字段的问题。

春天＆amp;休眠，找到位，预期TINYINT（1）DEFAULT 0

3 个答案: