MyBatisPlus

在 ruoyi 模块中锁定版本，在 ruoyi-common 模块中添加 mybatisplus 依赖

<dependency>
    <groupId>com.baomidou</groupId>
    <artifactId>mybatis-plus-boot-starter</artifactId>
    <!-- 禁止升级 避免版本冲突 -->
    <version>3.5.0</version>
</dependency>

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修改 mybatis 配置为 mybatis-plus

# MyBatis Plus配置
mybatis-plus:
    # 搜索指定包别名
    typeAliasesPackage: com.ruoyi.**.domain
    # 配置mapper的扫描，找到所有的mapper.xml映射文件
    mapperLocations: classpath*:mapper/**/*Mapper.xml
    # 加载全局的配置文件
    configLocation: classpath:mybatis/mybatis-config.xml
    global-config:
      db-config:
        # 数据库ID自增
        id-type: auto

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删除 ruoyi-framework 模块中 MyBatisConfig.java 文件，添加 MyBatis Plus 配置

package com.ruoyi.framework.config;

import com.baomidou.mybatisplus.annotation.DbType;
import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
import com.baomidou.mybatisplus.extension.plugins.inner.BlockAttackInnerInterceptor;
import com.baomidou.mybatisplus.extension.plugins.inner.OptimisticLockerInnerInterceptor;
import com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.transaction.annotation.EnableTransactionManagement;

/**
 * Mybatis Plus 配置
 * 
 * @author ruoyi
 */
@EnableTransactionManagement(proxyTargetClass = true)
@Configuration
public class MybatisPlusConfig
{
    @Bean
    public MybatisPlusInterceptor mybatisPlusInterceptor()
    {
        MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();
        // 分页插件
        interceptor.addInnerInterceptor(paginationInnerInterceptor());
        // 乐观锁插件
        interceptor.addInnerInterceptor(optimisticLockerInnerInterceptor());
        // 阻断插件
        interceptor.addInnerInterceptor(blockAttackInnerInterceptor());
        return interceptor;
    }

    /**
     * 分页插件，自动识别数据库类型 https://baomidou.com/guide/interceptor-pagination.html
     */
    public PaginationInnerInterceptor paginationInnerInterceptor()
    {
        PaginationInnerInterceptor paginationInnerInterceptor = new PaginationInnerInterceptor();
        // 设置数据库类型为mysql
        paginationInnerInterceptor.setDbType(DbType.MYSQL);
        // 设置最大单页限制数量，默认 500 条，-1 不受限制
        paginationInnerInterceptor.setMaxLimit(-1L);
        return paginationInnerInterceptor;
    }

    /**
     * 乐观锁插件 https://baomidou.com/guide/interceptor-optimistic-locker.html
     */
    public OptimisticLockerInnerInterceptor optimisticLockerInnerInterceptor()
    {
        return new OptimisticLockerInnerInterceptor();
    }

    /**
     * 如果是对全表的删除或更新操作，就会终止该操作 https://baomidou.com/guide/interceptor-block-attack.html
     */
    public BlockAttackInnerInterceptor blockAttackInnerInterceptor()
    {
        return new BlockAttackInnerInterceptor();
    }
}

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# 配置自动填充功能

@Slf4j
@Component
public class MyMetaObjectHandler implements MetaObjectHandler {
    @Override
    public void insertFill(MetaObject metaObject) {
        try {
            this.strictInsertFill(metaObject, "createBy", String.class, SecurityUtils.getUsername());
        } catch (ServiceException e) {
            log.info(e.getMessage());
        }
        this.strictInsertFill(metaObject, "createTime", Date.class, new Date());
    }

    @Override
    public void updateFill(MetaObject metaObject) {
        try {
            this.strictUpdateFill(metaObject, "updateBy", String.class, SecurityUtils.getUsername());
        } catch (ServiceException e) {
            log.info(e.getMessage());
        }
        this.strictUpdateFill(metaObject, "updateTime", Date.class, new Date());
    }
}

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/** 搜索值 */
@TableField(exist = false)
private String searchValue;

/** 创建者 */
@TableField(exist = false, fill = FieldFill.INSERT)
private String createBy;

/** 创建时间 */
@TableField(exist = false, fill = FieldFill.INSERT)
@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
private Date createTime;

/** 更新者 */
@TableField(exist = false, fill = FieldFill.UPDATE)
private String updateBy;

/** 更新时间 */
@TableField(exist = false, fill = FieldFill.UPDATE)
@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
private Date updateTime;

/** 备注 */
@TableField(exist = false)
private String remark;

/** 请求参数 */
@TableField(exist = false)
private Map<String, Object> params;

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# 修改代码生成模板

mapper.java.vm

import com.baomidou.mybatisplus.core.mapper.BaseMapper;

extends BaseMapper<${ClassName}>

service.java.vm

import com.baomidou.mybatisplus.extension.service.IService;

extends IService<${ClassName}>

serviceImpl.java.vm

import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;

extends ServiceImpl<${ClassName}Mapper, ${ClassName}>

编辑

上次更新: 2022-10-28 22:23:08

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