生产实习-7 项目功能开发

7 项目功能开发

7.1 项目实体创建

  • 创建ProjectInfo（之前用dbgan程序生成过），还需要在数据库创建表：

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    CREATE TABLE IF NOT EXISTS `myweb`.`project_info` (
      `id` VARCHAR(45) NOT NULL,
      `user_id` VARCHAR(45) NULL,
      `project_name` VARCHAR(45) NULL,
      `project_content` VARCHAR(45) NULL,
      `created_by` VARCHAR(45) NULL,
      `creation_date` DATETIME NULL,
      `last_updated_by` VARCHAR(45) NULL,
      `last_update_date` DATETIME NULL,
      PRIMARY KEY (`id`))
    ENGINE = InnoDB

7.2 数据库映射创建

  • 创建ProjectInfoMapper接口（之前dbgan程序生成过xml文件）

7.3 创建功能接口

  • 先写service层的接口：ProjectService：

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    package com.lyingedu.questionnaire.biz.user.service;

    import com.lyingedu.questionnaire.dbmap.entities.ProjectInfo;

    import java.util.List;

    public interface ProjectService {
        /**
         * 增加项目
         * @param projectInfo
         * @return
         */
        int addProjectInfo(ProjectInfo projectInfo, String UserId);

        /**
         * 修改项目
         * @param projectInfo
         * @return
         */
        int modifyProjectInfo(ProjectInfo projectInfo);

        /**
         * 删除项目
         * @param id
         * @return
         */
        int deleteProjectById(String id);

        /**
         * 查询项目列表
         * @return
         */
        List<ProjectInfo> queryProjectList(ProjectInfo projectInfo);
    }

  • 再写service实现类：ProjectServiceImpl:

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    package com.lyingedu.questionnaire.biz.user.service;

    import com.lyingedu.questionnaire.dbmap.entities.ProjectInfo;
    import com.lyingedu.questionnaire.dbmap.imapper.ProjectInfoMapper;
    import jakarta.annotation.Resource;
    import org.springframework.stereotype.Service;

    import java.util.List;

    @Service
    public class ProjectServiceImpl implements ProjectService {
        
        @Resource
        private ProjectInfoMapper projectInfoMapper;

        @Override
        public int addProjectInfo(ProjectInfo projectInfo, String UserId) {
            return 0;
        }

        @Override
        public int modifyProjectInfo(ProjectInfo projectInfo) {
            return 0;
        }

        @Override
        public int deleteProjectById(String id) {
            return 0;
        }

        @Override
        public List<ProjectInfo> queryProjectList(ProjectInfo projectInfo) {
            return null;
        }


    }

  • 最后写control层：

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    package com.lyingedu.questionnaire.biz.user.controller;

    import com.lyingedu.questionnaire.beans.HttpResponseEntity;
    import com.lyingedu.questionnaire.biz.user.service.ProjectService;
    import com.lyingedu.questionnaire.dbmap.entities.ProjectInfo;
    import jakarta.annotation.Resource;
    import lombok.extern.slf4j.Slf4j;
    import org.springframework.web.bind.annotation.RequestBody;
    import org.springframework.web.bind.annotation.RestController;


    @RestController //rest的接口风格
    @Slf4j
    public class ProjectController {
        @Resource
        private ProjectService projectService;

        public HttpResponseEntity queryProjectList(@RequestBody ProjectInfo projectInfo){
            return null;
        }

        public HttpResponseEntity addProjectInfo(@RequestBody ProjectInfo projectInfo){
            return null;
        }

        public HttpResponseEntity modifyProjectInfo(@RequestBody ProjectInfo projectInfo){
            return null;
        }

        public HttpResponseEntity deleteProjectById(@RequestBody String id){
            return null;
        }

    }

7.3 项目列表功能

  • 先查看对应的前端代码得到路径

7.3.1 control层

  • ProjectController.queryProjectList：
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@PostMapping("/queryProjectList")
public HttpResponseEntity queryProjectList(@RequestBody ProjectInfo projectInfo){

    HttpResponseEntity httpResponseEntity = new HttpResponseEntity();

    List<ProjectInfo> projectInfos = projectService.queryProjectList(projectInfo);
    if(projectInfos.size() == 1) {
        httpResponseEntity.setCode("666");
    }
    httpResponseEntity.setData(projectInfos);

    return httpResponseEntity;
}

7.3.2 service层

  • ProjectServiceImpl.queryProjectList：
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public List<ProjectInfo> queryProjectList(ProjectInfo projectInfo) {

    ProjectInfoExample projectInfoExample = new ProjectInfoExample();
    ProjectInfoExample.Criteria projectInfoCriteria = projectInfoExample.createCriteria();
    projectInfoCriteria.andCreatedByEqualTo(projectInfo.getCreatedBy());
    return projectInfoMapper.selectByExample(projectInfoExample);
}

7.3.3 数据库映射

  • 实现selectByEanmple：

  • imapper函数接口（已经生成过了）：

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    package com.lyingedu.questionnaire.dbmap.imapper;

    import com.lyingedu.questionnaire.dbmap.entities.ProjectInfo;
    import com.lyingedu.questionnaire.dbmap.entities.ProjectInfoExample;
    import java.util.List;
    import org.apache.ibatis.annotations.Param;

    public interface ProjectInfoMapper {
        /**
         * This method was generated by MyBatis Generator.
         * This method corresponds to the database table project_info
         *
         * @mbg.generated Tue Mar 05 14:17:07 CST 2024
         */
        long countByExample(ProjectInfoExample example);

        /**
         * This method was generated by MyBatis Generator.
         * This method corresponds to the database table project_info
         *
         * @mbg.generated Tue Mar 05 14:17:07 CST 2024
         */
        int deleteByExample(ProjectInfoExample example);

        /**
         * This method was generated by MyBatis Generator.
         * This method corresponds to the database table project_info
         *
         * @mbg.generated Tue Mar 05 14:17:07 CST 2024
         */
        int deleteByPrimaryKey(String id);

        /**
         * This method was generated by MyBatis Generator.
         * This method corresponds to the database table project_info
         *
         * @mbg.generated Tue Mar 05 14:17:07 CST 2024
         */
        int insert(ProjectInfo row);

        /**
         * This method was generated by MyBatis Generator.
         * This method corresponds to the database table project_info
         *
         * @mbg.generated Tue Mar 05 14:17:07 CST 2024
         */
        int insertSelective(ProjectInfo row);

        /**
         * This method was generated by MyBatis Generator.
         * This method corresponds to the database table project_info
         *
         * @mbg.generated Tue Mar 05 14:17:07 CST 2024
         */
        List<ProjectInfo> selectByExample(ProjectInfoExample example);

        /**
         * This method was generated by MyBatis Generator.
         * This method corresponds to the database table project_info
         *
         * @mbg.generated Tue Mar 05 14:17:07 CST 2024
         */
        ProjectInfo selectByPrimaryKey(String id);

        /**
         * This method was generated by MyBatis Generator.
         * This method corresponds to the database table project_info
         *
         * @mbg.generated Tue Mar 05 14:17:07 CST 2024
         */
        int updateByExampleSelective(@Param("row") ProjectInfo row, @Param("example") ProjectInfoExample example);

        /**
         * This method was generated by MyBatis Generator.
         * This method corresponds to the database table project_info
         *
         * @mbg.generated Tue Mar 05 14:17:07 CST 2024
         */
        int updateByExample(@Param("row") ProjectInfo row, @Param("example") ProjectInfoExample example);

        /**
         * This method was generated by MyBatis Generator.
         * This method corresponds to the database table project_info
         *
         * @mbg.generated Tue Mar 05 14:17:07 CST 2024
         */
        int updateByPrimaryKeySelective(ProjectInfo row);

        /**
         * This method was generated by MyBatis Generator.
         * This method corresponds to the database table project_info
         *
         * @mbg.generated Tue Mar 05 14:17:07 CST 2024
         */
        int updateByPrimaryKey(ProjectInfo row);
    }

  • xmapper执行sql（已经生成过了）：

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    <select id="selectByExample" parameterType="com.lyingedu.questionnaire.dbmap.entities.ProjectInfoExample" resultMap="BaseResultMap">
      <!--
        WARNING - @mbg.generated
        This element is automatically generated by MyBatis Generator, do not modify.
        This element was generated on Tue Mar 05 14:17:07 CST 2024.
      -->
      select
      <if test="distinct">
        distinct
      </if>
      <include refid="Base_Column_List" />
      from project_info
      <if test="_parameter != null">
        <include refid="Example_Where_Clause" />
      </if>
      <if test="orderByClause != null">
        order by ${orderByClause}
      </if>
    </select>

7.3.3 测试

  • 登陆后会显示当前用户创建的问卷

7.4 新建项目功能

  • 查看前端代码得到路径

7.4.1 control层

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@PostMapping("/addProjectInfo")
public HttpResponseEntity addProjectInfo(@RequestBody ProjectInfo projectInfo) {

    HttpResponseEntity httpResponseEntity = new HttpResponseEntity();
    int count = projectService.addProjectInfo(projectInfo, projectInfo.getCreatedBy()); //返回受影响的行数 //用户名要唯一
    if(count == 1) { //插入成功则状态码为666，否则为默认错误值
        httpResponseEntity.setCode("666");
    }
    return httpResponseEntity;
}

7.4.2 service层

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public int addProjectInfo(ProjectInfo projectInfo, String userName) {

    projectInfo.setId(UUIDUtil.getOneUUID());
    projectInfo.setCreatedBy(userName);
    return projectInfoMapper.insert(projectInfo);
}

7.5 项目修改

7.5.1 control层

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@PostMapping("/modifyProjectInfo")
public HttpResponseEntity modifyProjectInfo(@RequestBody ProjectInfo projectInfo) {

    HttpResponseEntity httpResponseEntity = new HttpResponseEntity();
    projectService.modifyProjectInfo(projectInfo);
    httpResponseEntity.setCode("666");
    httpResponseEntity.setMessage("修改成功");
    return httpResponseEntity;
}

7.5.2 service层

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public int modifyProjectInfo(ProjectInfo projectInfo) {
    return projectInfoMapper.updateByPrimaryKeySelective(projectInfo)
}

7.6 项目删除

7.6.1 control层

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@PostMapping("/deleteProjectById")
public HttpResponseEntity deleteProjectById(@RequestBody ProjectInfo projectInfo) {

    HttpResponseEntity httpResponseEntity = new HttpResponseEntity();
    projectService.deleteProjectById(projectInfo.getId());
    httpResponseEntity.setCode("666");
    httpResponseEntity.setMessage("删除成功");
    return httpResponseEntity;
}

7.6.2 service层

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public int deleteProjectById(String id) {
    return projectInfoMapper.deleteByPrimaryKey(id);
}
赏

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    缺失模块。
    1、请确保node版本大于6.2
    2、在博客根目录（注意不是yilia根目录）执行以下命令：
    npm i hexo-generator-json-content --save

    3、在根目录_config.yml里添加配置： 

      jsonContent:
    meta: false
    pages: false
    posts:
      title: true
      date: true
      path: true
      text: false
      raw: false
      content: false
      slug: false
      updated: false
      comments: false
      link: false
      permalink: false
      excerpt: false
      categories: false
      tags: true

很惭愧<br><br>只做了一点微小的工作<br>谢谢大家