使用Mybatis-plus实现时间自动填充(代码直接可用)

2024-04-02 19:04:59 328人浏览安东尼

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摘要

目录一. 搭建基础项目二. 设置自动填充一. 搭建基础项目引入依赖 <dependencies> <dependency>

一. 搭建基础项目

引入依赖

<dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-WEB</artifactId>
        </dependency>
        <!--lombok 依赖-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <!-- swagger2 依赖 -->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>2.7.0</version>
        </dependency>
        <!-- Swagger第三方ui依赖 -->
        <dependency>
            <groupId>com.GitHub.xiaoymin</groupId>
            <artifactId>swagger-bootstrap-ui</artifactId>
            <version>1.9.6</version>
        </dependency>
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.3.1.tmp</version>
        </dependency>
        <dependency>
            <groupId>Mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.26</version>
        </dependency>
    </dependencies>

controller

@RestController
public class TestController {
 
    @Autowired
    private IProjectService projectService;
 
    @apiOperation("新增项目")
    @PostMapping("/")
    public void addProjectWrite(@RequestBody Project project) {
        projectService.save(project);
    }
}

service

public interface IProjectService extends IService<Project> {
 
}

serviceImpl

@Service
public class ProjectServiceImpl extends ServiceImpl<ProjectMapper, Project> implements IProjectService {
 
}

Mapper

@Service
public class ProjectServiceImpl extends ServiceImpl<ProjectMapper, Project> implements IProjectService {
 
}

Pojo

@Data
@EqualsAndHashCode(callSuper = false)
@Accessors(chain = true)
@TableName("ts_project")
@ApiModel(value="Project对象", description="撰写项目申请书的基本内容")
public class Project implements Serializable {
 
    private static final long serialVersionUID = 1L;
    @TableId(value = "id", type = IdType.AUTO)
    private String id;
 
    private Integer workNumber;
    private Integer adminId;
    private String name;
 
    @ApiModelProperty(value = "创建时间")
    @JSONFORMat(pattern = "yyyy-MM-dd HH:mm:ss",timezone = "Asia/Shanghai")
    @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss")
    private Date gmtCreate;
 
    @ApiModelProperty(value = "更新时间")
    @jsonFormat(pattern = "yyyy-MM-dd HH:mm:ss",timezone = "Asia/Shanghai")
    @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss")
    private Date gmtModified;
 
}

application.yml

server:
  # 端口
  port: 8081
 
spring:
  # 数据源配置
  datasource:
    driver-class-name: com.mysql.cj.jdbc.Driver
    url: jdbc:mysql://localhost:3306/test2?useUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai
    username: root
    passWord: root
 
 
# Mybatis-plus配置
mybatis-plus:
  #配置Mapper映射文件
  mapper-locations: classpath*:/mapper
@Component
public class MyMetaObjectHandler implements MetaObjectHandler {
    @Override
    public void insertFill(MetaObject metaObject) {
        this.setFieldValByName("gmtCreate",  new Date(), metaObject);
        this.setFieldValByName("gmtModified", new Date(), metaObject);
    }
 
    @Override
    public void updateFill(MetaObject metaObject) {
        this.setFieldValByName("gmtModified", new Date(), metaObject);
 
    }
}

修改pojo类

@Data
@EqualsAndHashCode(callSuper = false)
@Accessors(chain = true)
@TableName("ts_project")
@ApiModel(value="Project对象", description="撰写项目申请书的基本内容")
public class Project implements Serializable {
 
    private static final long serialVersionUID = 1L;
    @TableId(value = "id", type = IdType.AUTO)
    private String id;
 
    private Integer workNumber;
    private Integer adminId;
    private String name;
 
    @ApiModelProperty(value = "创建时间")
    @TableField(fill = FieldFill.INSERT)
    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss",timezone = "Asia/Shanghai")
    @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss")
    private Date gmtCreate;
 
    @ApiModelProperty(value = "更新时间")
    @TableField(fill = FieldFill.INSERT_UPDATE)
    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss",timezone = "Asia/Shanghai")
    @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss")
    private Date gmtModified;
}