Maven
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<parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.2.6.RELEASE</version> <relativePath/> <!-- lookup parent from repository --></parent> <dependency> <groupId>com.baomidou</groupId> <artifactId>mybatis-plus-boot-starter</artifactId> <version>3.1.0</version></dependency> |
解决方案
1、 实体类
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/** * 基础Bean */@Datapublic class BaseEntity implements Serializable { @TableField(value = "create_user", fill = FieldFill.INSERT) // 新增执行 private String createUser; @TableField(value = "create_time", fill = FieldFill.INSERT) private LocalDateTime createTime; @TableField(value = "update_user", fill = FieldFill.INSERT_UPDATE) // 新增和更新执行 private String updateUser; @TableField(value = "update_time", fill = FieldFill.INSERT_UPDATE) private LocalDateTime updateTime; @TableField(value = "remark") private String remark; } |
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@Data@TableName("sys_dept")public class SysDeptEntity extends BaseEntity { private static final long serialVersionUID = 1L; /** * 部门ID **/ @TableId private Long deptId; /** * 部门父节点ID **/ private Long parentId; /** * 部门名称 **/ private String deptName; /** * 显示顺序 **/ private Integer orderNum; /** * 用户状态（0：正常 1：禁用） **/ private Integer status; @TableField(exist = false) private List<SysDeptEntity> children; } |
2、拦截器MetaObjectHandler
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/** * @author ShenTuZhiGang * @version 1.0.0 * @date 2020-11-26 15:52 */@Slf4j@Componentpublic class CustomMetaObjectHandler implements MetaObjectHandler { @Autowired private AuthenticationTrustResolver authenticationTrustResolver; @Override public void insertFill(MetaObject metaObject) { log.info("come to insert fill ........."); this.setFieldValByName("createTime", LocalDateTime.now(), metaObject); this.setFieldValByName("updateTime", LocalDateTime.now(), metaObject); Authentication authentication = SecurityContextHolder.getContext().getAuthentication(); if(!authenticationTrustResolver.isAnonymous(authentication) && authentication!=null){ AuthenticationUser user = (AuthenticationUser) authentication.getPrincipal(); this.setFieldValByName("createUser", user.getUsername(), metaObject); this.setFieldValByName("updateUser", user.getUsername(), metaObject); }else{ this.setFieldValByName("createUser", "unknown", metaObject); this.setFieldValByName("updateUser", "unknown", metaObject); } } @Override public void updateFill(MetaObject metaObject) { log.info("come to update fill ........."); this.setFieldValByName("update_time", LocalDateTime.now(), metaObject); Authentication authentication = SecurityContextHolder.getContext().getAuthentication(); if(!authenticationTrustResolver.isAnonymous(authentication) && authentication!=null){ AuthenticationUser user = (AuthenticationUser) authentication.getPrincipal(); this.setFieldValByName("updateUser", user.getUsername(), metaObject); }else{ this.setFieldValByName("updateUser", "unknown", metaObject); } }} |
不需要以下代码：
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@Configurationpublic class MyBatisPlusConfig { /** * 自动填充功能 * @return */ @Bean public GlobalConfig globalConfig() { GlobalConfig globalConfig = new GlobalConfig(); globalConfig.setMetaObjectHandler(new MetaHandler()); return globalConfig; } } |
3、测试
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@RequiresPermissions("sys:dept:add")@PostMapping("/add")@ResponseBodypublic R add(@RequestBody SysDeptEntity deptEntity) { logger.info("添加信息={}", deptEntity); sysDeptService.save(deptEntity); // 不再需要设置setCreateUser、setCreateTime、setUpdateUser、setUpdateTime操作，代码更优美 return R.ok();} |
参考文章
使用MyBatis Plus自动添加数据库表中的创建时间、创建者、更新时间、更新者
使用mybatis plus插入或更新数据时mysql表的添加时间和更新时间字段没有更新（mybatis plus坑之一）
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原文链接：https://blog.csdn.net/weixin_43272781/article/details/110198852
