spring测试save方法报错

Posted 2021-01-01 魔瞳

用test类测试service的save方法时,报错如下:

2018-08-24 21:52:13,506 - could not read a hi value
com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Table ‘sell.hibernate_sequence‘ doesn‘t exist
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
    at com.mysql.jdbc.Util.getInstance(Util.java:408)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:944)

后经过调查,原因是实体类的自增主键写的有问题,

原写法:

@GeneratedValue
    private Integer categoryId;

现写法:

@GeneratedValue(strategy = GenerationType.IDENTITY) //设置主键生成模式为自增
    private Integer categoryId;

加上策略后,问题解决