springboot vue项目管理后端实现接口新增

package com.pingguo.bloomtest.pojo;
import com.baomidou.mybatisplus.annotation.FieldFill;
import com.baomidou.mybatisplus.annotation.IdType;
import com.baomidou.mybatisplus.annotation.TableField;
import com.baomidou.mybatisplus.annotation.TableId;
import lombok.Data;
import java.util.Date;
@Data
public class Project {
    @TableId(type = IdType.AUTO)
    private Long id;
    private String projectName;
    private String description;
    @TableField(fill = FieldFill.INSERT)        // 新增的时候填充数据
    private Date createTime;
    @TableField(fill = FieldFill.INSERT_UPDATE) // 新增或修改的时候填充数据
    private Date updateTime;
    private String createUser;
}

CREATE TABLE `project` (
  `id` bigint NOT NULL AUTO_INCREMENT COMMENT '主键ID',
  `projectName` varchar(30) DEFAULT NULL COMMENT '项目名称',
  `description` varchar(255) DEFAULT NULL COMMENT '描述',
  `createTime` datetime NOT NULL DEFAULT '1900-01-01 00:00:00' COMMENT '创建时间',
  `updateTime` datetime NOT NULL DEFAULT '1900-01-01 00:00:00' COMMENT '更新时间',
  `createUser` varchar(30) DEFAULT NULL COMMENT '创建人',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8 COMMENT='项目表';

# mybatis-plus，关闭自动转化驼峰和下划线
mybatis-plus.configuration.map-underscore-to-camel-case=false

package com.pingguo.bloomtest.dao;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.pingguo.bloomtest.pojo.Project;
import org.springframework.stereotype.Repository;
@Repository
public interface ProjectDAO extends BaseMapper<Project> {
}

package com.pingguo.bloomtest.service;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.pingguo.bloomtest.common.BtException;
import com.pingguo.bloomtest.dao.ProjectDAO;
import com.pingguo.bloomtest.pojo.Project;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.Date;
@Service
public class ProjectService {
    @Autowired
    ProjectDAO projectDAO;
    public void addProject(Project project) {
        if (StringUtils.isBlank(project.getProjectName())) {
            BtException.throwException("项目名称为空");
        }
        QueryWrapper<Project> wrapperProject = new QueryWrapper<>();
        wrapperProject.eq("projectName", project.getProjectName());
        if (projectDAO.selectCount(wrapperProject) != 0) {
            BtException.throwException("项目名称已存在");
        }
        project.setCreateTime(new Date());
        project.setUpdateTime(new Date());
        projectDAO.insert(project);
    }
}

package com.pingguo.bloomtest.common;
public class BtException extends RuntimeException{
    private BtException(String message) {
        super(message);
    }
    public static void throwException(String message) {
        throw new BtException(message);
    }
}

package com.pingguo.bloomtest.controller;
import com.pingguo.bloomtest.common.Result;
import com.pingguo.bloomtest.pojo.Project;
import com.pingguo.bloomtest.service.ProjectService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
@RequestMapping("project")
public class ProjectController {
    @Autowired
    ProjectService projectService;
    @PostMapping("/add")
    public Result addProject(@RequestBody Project project) {
        try {
            projectService.addProject(project);
            return Result.success();
        } catch (Exception e) {
            return Result.fail(e.toString());
        }
    }
}