MyBatis-Plus中的逻辑删除功能及实例分析

import com.baomidou.mybatisplus.annotation.TableLogic;
import com.baomidou.mybatisplus.annotation.TableName;
import lombok.Data;

@Data
@TableName("blog")
public class Blog {
    private Long id;
    private String title;
    private String content;
    @TableLogic
    private Integer deleted;
}

import org.springframework.stereotype.Repository;

@Repository
public interface BlogMapper extends BaseMapper<Blog> {
}

import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.springframework.stereotype.Service;

@Service
public class BlogServiceImpl extends ServiceImpl<BlogMapper, Blog> implements BlogService {

    @Override
    public boolean deleteBlogById(Long id) {
        return baseMapper.deleteById(id) > 0;
    }
}

mybatis-plus:
  global-config:
    db-config:
      logic-delete-value: 1
      logic-not-delete-value: 0

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
import com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor;
import com.baomidou.mybatisplus.extension.plugins.inner.OptimisticLockerInnerInterceptor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class MyBatisPlusConfig {

    @Bean
    public MybatisPlusInterceptor mybatisPlusInterceptor() {
        MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();
        // 添加乐观锁插件
        interceptor.addInnerInterceptor(new OptimisticLockerInnerInterceptor());
        return interceptor;
    }

    @Bean
    public PaginationInterceptor paginationInterceptor() {
        return new PaginationInterceptor();
    }
}

import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;

@SpringBootTest
public class BlogServiceTest {

    @Autowired
    private BlogService blogService;

    @Test
    public void testDeleteBlog() {
        Long blogId = 1L; // 假设要删除ID为1的博客
        boolean result = blogService.deleteBlogById(blogId);
        System.out.println("Delete successful: " + result);
    }
}