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https://github.com/openingo/mybatis-x
MyBatis(Plus) Extensions
https://github.com/openingo/mybatis-x
mybatis mybatis-plus mybatis-plus-x mybatis-x
Last synced: 10 days ago
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MyBatis(Plus) Extensions
- Host: GitHub
- URL: https://github.com/openingo/mybatis-x
- Owner: openingo
- License: other
- Created: 2020-06-18T03:19:53.000Z (over 4 years ago)
- Default Branch: master
- Last Pushed: 2021-07-29T04:01:54.000Z (over 3 years ago)
- Last Synced: 2023-08-06T09:02:11.936Z (over 1 year ago)
- Topics: mybatis, mybatis-plus, mybatis-plus-x, mybatis-x
- Language: Java
- Homepage:
- Size: 46.9 KB
- Stars: 2
- Watchers: 3
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
### MyBatis(Plus) Extensions
```xml
org.openingo.boot
mybatis-x
new_version
```
#### features
- ModelX: 针对MyBatis-Plus的Model扩展
#### 使用方式
- generator配置
```java
// 策略配置
StrategyConfig strategy = new StrategyConfig();
strategy.setNaming(NamingStrategy.underline_to_camel);
strategy.setColumnNaming(NamingStrategy.underline_to_camel);
strategy.setSuperEntityClass(ModelX.class); // ModelX在这里
```
#### 示例
> 以UserDO举例
>
> ```java
> @TableName("t_user")
> public UserDO extends ModelX {
> private static final long serialVersionUID=1L;
>
> @TableId(value = "user_id", type = IdType.AUTO)
> private Integer userId;
>
> private String userName;
>
> private Integer sex;
> }
> ```
>
>
- doQuery
```java
// sql: select user_id, user_name from t_user where user_name = 'qicz';
UserDO.dao(UserDO.class).eq(UserDO::getUserName, "qicz").eq(UserDO::getSex: 1).select(UserDO::getUserId, UserDO::getUserName).doQuery();
```
> select输出的位置不限
- doQueryLimitOne
```java
// sql: select user_id, user_name from t_user where user_name = 'qicz' limit 1;
UserDO.dao(UserDO.class).eq(UserDO::getUserName, "qicz").eq(UserDO::getSex: 1).select(UserDO::getUserId, UserDO::getUserName).doQueryLimitOne();
```
> 【暂仅支持MySQL】会自动在queryWrapper拼接`LIMIT 1`，不影响添加`LIMIT 1`之后的其他操作(MyBatis-Plus只能进行一次last操作的问题解决)。
- doQueryOne
```java
// sql: select user_id, user_name from t_user where user_name = 'qicz';
UserDO.dao(UserDO.class).eq(UserDO::getUserName, "qicz").eq(UserDO::getSex: 1).select(UserDO::getUserId, UserDO::getUserName).doQueryOne();
```
> 当查询结果大于1条时，会有异常。
- doUpdate
```java
// sql: update t_user set user_name = 'qicz-new-name' where user_name = 'qicz' and sex = 1;
UserDO.dao(UserDO.class).eq(UserDO::getUserName, "qicz").eq(UserDO::getSex: 1).set(UserDO::getUserName, "qicz-new-name").doUpdate();
```
- doDelete
```java
// sql: delete from t_user where user_name = 'qicz' and sex = 1;
UserDO.dao(UserDO.class).eq(UserDO::getUserName, "qicz").eq(UserDO::getSex: 1).doDelete();
```
- 先doQuery再doUpdate或doDelete
```java
// do query
// sql: select user_id, user_name from t_user where user_name = 'qicz';
UserDO userDO = UserDO.dao(UserDO.class).eq(UserDO::getUserName, "qicz").select(UserDO::getUserId, UserDO::getUserName).doQuery();
// do delete
// sql: delete from t_user where user_name = 'qicz' and sex = 1;
userDO.eq(UserDO::getSex: 1).doDelete();
// do update
// sql: update t_user set user_name = 'qicz-new-name' where user_name = 'qicz' and sex = 1;
userDO.set(UserDO::getUserName, "qicz-new-name").doUpdate();
```
- by
```java
// sql: select user_id, user_name from t_user where user_name = 'qicz' and sex = 1;
UserDO userDO = UserDO.dao(UserDO.class);
userDO.setUserName("qicz");
userDO.setSex(1);
userDO.by(userDO).select(UserDO::getUserId, UserDO::getUserName).doQuery();
```