一、Mybatis Plus 2,oracle 自增序列配置
1. config.yml 配置文件
#mybaits-plus配置,修改主鍵類型,mapper.xml、type 別名等
mybatis-plus:
mapper-locations: classpath:/mapper/*Mapper.xml
global-config:
#主鍵類型 0:"數據庫ID自增", 1:"用戶輸入ID",2:"全局唯一ID (數字類型唯一ID)", 3:"全局唯一ID UUID";
id-type: 1
# Sequence序列接口實現類配置
key-generator: com.baomidou.mybatisplus.incrementer.OracleKeyGenerator
2. MybatisPlusConfigurer.java 配置
@Configuration
@MapperScan("user.mapper")
public class MybatisPlusConfigurer {
}
3. 實體配置
@TableName("T_USER")
@KeySequence(value = "SEQ_USER", clazz = Integer.class)
public class User extends Model<User> {
private static final long serialVersionUID = 1L;
/**
* 用戶ID
*/
@TableId(value = "USER_ID", type = IdType.INPUT)
private Integer userId;
}
二、Mybatis Plus 3,oracle 自增序列配置
1. config.yml 配置文件
#mybaits-plus配置,修改主鍵類型,mapper.xml、type 別名等
mybatis-plus:
mapper-locations: classpath:/mapper/*Mapper.xml
global-config:
#主鍵類型 0:"數據庫ID自增", 1:"用戶輸入ID",2:"全局唯一ID (數字類型唯一ID)", 3:"全局唯一ID UUID";
id-type: 1
# Sequence序列接口實現類配置
key-generator: com.baomidou.mybatisplus.extension.incrementer.OracleKeyGenerator
2. MybatisPlusConfigurer.java 配置
@Configuration
@MapperScan("user.mapper")
public class MybatisPlusConfigurer {
/**
* Sequence主鍵自增
*
* @return 返回oracle自增類
* @author zhenggc
* @date 2019/1/2
*/
@Bean
public OracleKeyGenerator oracleKeyGenerator(){
return new OracleKeyGenerator();
}
}
3. 實體配置
@TableName("T_USER")
@KeySequence(value = "SEQ_USER", clazz = Integer.class)
public class User extends Model<User> {
private static final long serialVersionUID = 1L;
/**
* 用戶ID
*/
@TableId(value = "USER_ID", type = IdType.INPUT)
private Integer userId;
}
三、Mybatis Plus 2 升到 Mybatis Plus 3,有兩個配置文件存在差異
1. config.yml 配置文件的差異,OracleKeyGenerator 的包路徑變了
Mybatis Plus 2 :
key-generator: com.baomidou.mybatisplus.incrementer.OracleKeyGenerator
Mybatis Plus 3 :
key-generator: com.baomidou.mybatisplus.extension.incrementer.OracleKeyGenerator
2. MybatisPlusConfigurer.java 配置的差異
Mybatis Plus 2 不需要配置 OracleKeyGenerator 的 bean ,而 Mybatis Plus 3 需要配置 OracleKeyGenerator。