mybatis-plus逻辑删除

springboot整合mybatis-plus

        
            com.baomidou
            mybatis-plus-boot-starter
            2.2.0
        

1、application.properties 添加一下配置

mybatis-plus:
  mapper-locations: classpath:com/cicdi/invoice/mapping/**/*Mapper.xml
  typeAliasesPackage: com.cicdi.invoice.**.model
  global-config:
    id-type: 2
    db-column-underline: true #驼峰下划线转换
    logic-delete-value: 101003  #配置逻辑删除字段为1是删除
    logic-not-delete-value: 101001 #配置逻辑删除字段为101001是未删除
    sql-injector: com.baomidou.mybatisplus.mapper.LogicSqlInjector #逻辑删除配置
    meta-object-handler: com.cicdi.invoice.common.config.mybatis.MetaObjectHandlerConfig
  configuration:
    map-underscore-to-camel-case: true

2、实体类添加注解，标记该字段为逻辑删除字段

    @TableLogic  //逻辑删除注解
    @JsonIgnore  //忽略
    @TableField(fill = FieldFill.INSERT)  //新增的时候自动插入，MetaObjectHandlerConfig配置文件
    private Integer status;

3、然后调用mybatis-plus的delete相关方法即是逻辑删除

    @RequestMapping(value = "/delete", method = RequestMethod.POST)
    @Transactional
    public ResponseObj delete(@ModelAttribute BaseInvoice model) throws Exception {
//        String userId = CommonUtils.getUserId();
        String userId = "huangjihai";

        //只允许删除自己的发票
        boolean result = service.delete(new EntityWrapper()
                .eq("INVOICE_ID", model.getInvoiceId())
                .eq("USER_ID", userId)
                .eq("USED", 0));
        //修改t_file表status状态
        boolean delete = invoiceFileService.delete(new EntityWrapper()
                .eq("ASSOCIATE_ID", model.getInvoiceId())
                .eq("STATUS", 101001));
        if (result && delete)
            return new ResponseObj<>(result, RetCode.SUCCESS);
        return new ResponseObj<>(result, RetCode.FAIL);
    }

执行的sql语句：
① UPDATE T_INVOICE SET `status`=101003 WHERE `status`=101001 AND (INVOICE_ID = 1063004582892011522 AND USER_ID = 'huangjihai' AND USED = 0)
② UPDATE t_file SET `status`=101003 WHERE `status`=101001 AND (ASSOCIATE_ID = 1063004582892011522 AND STATUS = 101001)
那么非逻辑删除呢

mybatis-plus更新：更新部分字段，不影响其他字段在表里的值

UPDATE T_INVOICE SET invoice_name='上海圆迈贸易有限公司', invoice_remarks='订单号:81452438092' WHERE `status`=101001 AND (USER_ID = 'huangjihai' AND INVOICE_ID = 1064813605193740289)