【前后端的那些事】前后端环境搭建+树形结构表格实现

文章目录

    • [1. 前后端项目环境搭建](#1. 前后端项目环境搭建)
    • [2. table-tree](#2. table-tree)
      • [2.1 后端准备](#2.1 后端准备)
      • [2.2 前端准备](#2.2 前端准备)

前言 :最近写项目,发现了一些很有意思的功能,想写文章,录视频把这些内容记录下。但这些功能太零碎,如果为每个功能都单独搭建一个项目,这明显不合适。于是我想,就搭建一个项目,把那些我想将的小功能全部整合到一起。实现搭一次环境,处处使用。

本文主要实现一下两个功能

  1. 前后端项目搭建
  2. 表格展示树形数据

1. 前后端项目环境搭建

前端:pure-admin-thin + renren-fast-vue

后端:springboot 2.7.5 + renren-fast

前端

  • 克隆pure-admin-thin

    bash 复制代码
    git clone https://github.com/pure-admin/pure-admin-thin.git
  • 安装前端依赖

    bash 复制代码
    pnpm i
  • 运行前端项目

    bash 复制代码
    pnpm run dev

后端

  • 构建springboot项目

  • pom.xml

    xml 复制代码
        <properties>
            <java.version>1.8</java.version>
            <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
            <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
            <java.version>1.8</java.version>
            <mybatisplus.version>3.3.1</mybatisplus.version>
            <mysql.version>8.0.28</mysql.version>
            <mssql.version>4.0</mssql.version>
            <oracle.version>11.2.0.3</oracle.version>
            <druid.version>1.1.13</druid.version>
            <quartz.version>2.3.0</quartz.version>
            <commons.lang.version>2.6</commons.lang.version>
            <commons.fileupload.version>1.2.2</commons.fileupload.version>
            <commons.io.version>2.5</commons.io.version>
            <commons.codec.version>1.10</commons.codec.version>
            <commons.configuration.version>1.10</commons.configuration.version>
            <shiro.version>1.9.0</shiro.version>
            <jwt.version>0.7.0</jwt.version>
            <kaptcha.version>0.0.9</kaptcha.version>
            <qiniu.version>7.2.23</qiniu.version>
            <aliyun.oss.version>2.8.3</aliyun.oss.version>
            <qcloud.cos.version>4.4</qcloud.cos.version>
            <swagger.version>2.7.0</swagger.version>
            <joda.time.version>2.9.9</joda.time.version>
            <gson.version>2.8.5</gson.version>
            <hutool.version>4.1.1</hutool.version>
            <lombok.version>1.18.4</lombok.version>
        </properties>
    
    
        <dependencies>
            <dependency>
                <groupId>com.fasterxml.jackson.datatype</groupId>
                <artifactId>jackson-datatype-jsr310</artifactId>
            </dependency>
    
            <!--日志-->
            <dependency>
                <groupId>ch.qos.logback</groupId>
                <artifactId>logback-classic</artifactId>
            </dependency>
            <dependency>
                <groupId>ch.qos.logback</groupId>
                <artifactId>logback-access</artifactId>
            </dependency>
            <dependency>
                <groupId>ch.qos.logback</groupId>
                <artifactId>logback-core</artifactId>
            </dependency>
            <dependency>
                <groupId>commons-dbcp</groupId>
                <artifactId>commons-dbcp</artifactId>
                <version>1.4</version>
            </dependency>
    
            <dependency>
                <groupId>com.auth0</groupId>
                <artifactId>java-jwt</artifactId>
                <version>3.2.0</version>
            </dependency>
    
            <dependency>
                <groupId>com.aliyun</groupId>
                <artifactId>dysmsapi20170525</artifactId>
                <version>2.0.23</version>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-validation</artifactId>
            </dependency>
            <dependency>
                <groupId>commons-io</groupId>
                <artifactId>commons-io</artifactId>
                <version>2.11.0</version>
            </dependency>
            <dependency>
                <groupId>javax.annotation</groupId>
                <artifactId>javax.annotation-api</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-jdbc</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-thymeleaf</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
            <dependency>
                <groupId>com.baomidou</groupId>
                <artifactId>mybatis-plus-boot-starter</artifactId>
                <version>${mybatisplus.version}</version>
                <exclusions>
                    <exclusion>
                        <groupId>com.baomidou</groupId>
                        <artifactId>mybatis-plus-generator</artifactId>
                    </exclusion>
                </exclusions>
            </dependency>
            <dependency>
                <groupId>org.apache.shiro</groupId>
                <artifactId>shiro-core</artifactId>
                <version>${shiro.version}</version>
            </dependency>
            <dependency>
                <groupId>org.apache.shiro</groupId>
                <artifactId>shiro-spring</artifactId>
                <version>${shiro.version}</version>
            </dependency>
            <dependency>
                <groupId>io.jsonwebtoken</groupId>
                <artifactId>jjwt</artifactId>
                <version>${jwt.version}</version>
            </dependency>
            <dependency>
                <groupId>com.github.axet</groupId>
                <artifactId>kaptcha</artifactId>
                <version>${kaptcha.version}</version>
            </dependency>
            <dependency>
                <groupId>io.springfox</groupId>
                <artifactId>springfox-swagger2</artifactId>
                <version>${swagger.version}</version>
            </dependency>
            <dependency>
                <groupId>io.springfox</groupId>
                <artifactId>springfox-swagger-ui</artifactId>
                <version>${swagger.version}</version>
            </dependency>
            <dependency>
                <groupId>com.qiniu</groupId>
                <artifactId>qiniu-java-sdk</artifactId>
                <version>${qiniu.version}</version>
            </dependency>
            <dependency>
                <groupId>com.aliyun.oss</groupId>
                <artifactId>aliyun-sdk-oss</artifactId>
                <version>${aliyun.oss.version}</version>
            </dependency>
            <dependency>
                <groupId>com.qcloud</groupId>
                <artifactId>cos_api</artifactId>
                <version>${qcloud.cos.version}</version>
                <exclusions>
                    <exclusion>
                        <groupId>org.slf4j</groupId>
                        <artifactId>slf4j-log4j12</artifactId>
                    </exclusion>
                </exclusions>
            </dependency>
            <dependency>
                <groupId>joda-time</groupId>
                <artifactId>joda-time</artifactId>
                <version>${joda.time.version}</version>
            </dependency>
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>fastjson</artifactId>
                <version>1.2.79</version>
            </dependency>
            <dependency>
                <groupId>com.google.code.gson</groupId>
                <artifactId>gson</artifactId>
                <version>${gson.version}</version>
            </dependency>
            <dependency>
                <groupId>cn.hutool</groupId>
                <artifactId>hutool-all</artifactId>
                <version>${hutool.version}</version>
            </dependency>
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
                <version>${lombok.version}</version>
            </dependency>
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
            </dependency>
            <dependency>
                <groupId>commons-lang</groupId>
                <artifactId>commons-lang</artifactId>
                <version>${commons.lang.version}</version>
            </dependency>
            <dependency>
                <groupId>org.aspectj</groupId>
                <artifactId>aspectjweaver</artifactId>
            </dependency>
            <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-data-redis -->
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-data-redis</artifactId>
                <version>2.7.5</version>
            </dependency>
            <!-- https://mvnrepository.com/artifact/org.springframework.data/spring-data-redis -->
            <dependency>
                <groupId>org.springframework.data</groupId>
                <artifactId>spring-data-redis</artifactId>
                <version>2.7.5</version>
            </dependency>
    
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>javax.servlet-api</artifactId>
                <version>3.1.0</version>
            </dependency>
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>druid-spring-boot-starter</artifactId>
                <version>1.2.13</version>
            </dependency>
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
                <optional>true</optional>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <scope>test</scope>
            </dependency>
            <dependency>
                <groupId>io.minio</groupId>
                <artifactId>minio</artifactId>
                <version>8.2.2</version>
            </dependency>
            <dependency>
                <groupId>org.apache.commons</groupId>
                <artifactId>commons-lang3</artifactId>
            </dependency>
        </dependencies>
    
        <build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                    <configuration>
                        <excludes>
                            <exclude>
                                <groupId>org.projectlombok</groupId>
                                <artifactId>lombok</artifactId>
                            </exclude>
                        </excludes>
                    </configuration>
                </plugin>
            </plugins>
        </build>
  • yml

    yaml 复制代码
    # Tomcat
    server:
      tomcat:
        uri-encoding: UTF-8
        max-threads: 1000
        min-spare-threads: 30
      port: 9006
    #  connection-timeout: 5000ms
      servlet:
        context-path: /api_demo
    
    spring:
      datasource:
        type: com.alibaba.druid.pool.DruidDataSource
        druid:
          driver-class-name: com.mysql.cj.jdbc.Driver
          url: jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai
          username: root
          password: root
          initial-size: 10
          max-active: 100
          min-idle: 10
          max-wait: 60000
          pool-prepared-statements: true
          max-pool-prepared-statement-per-connection-size: 20
          time-between-eviction-runs-millis: 60000
          min-evictable-idle-time-millis: 300000
          #Oracle需要打开注释
          #validation-query: SELECT 1 FROM DUAL
          test-while-idle: true
          test-on-borrow: false
          test-on-return: false
          stat-view-servlet:
            enabled: true
            url-pattern: /druid/*
            #login-username: admin
            #login-password: admin
          filter:
            stat:
              log-slow-sql: true
              slow-sql-millis: 1000
              merge-sql: false
            wall:
              config:
                multi-statement-allow: true
      # 环境 dev|test|prod
      profiles:
        active: dev
      # jackson时间格式化
      jackson:
        time-zone: GMT+8
        date-format: yyyy-MM-dd HH:mm:ss
      servlet:
        multipart:
          max-file-size: 100MB
          max-request-size: 100MB
          enabled: true
      redis:
        open: false  # 是否开启redis缓存  true开启   false关闭
        database: 0
        host: localhost
        port: 6379
        #    password: 123456   # 密码(默认为空)
        timeout: 6000ms  # 连接超时时长(毫秒)
        jedis:
          pool:
            max-active: 1000  # 连接池最大连接数(使用负值表示没有限制)
            max-wait: -1ms      # 连接池最大阻塞等待时间(使用负值表示没有限制)
            max-idle: 10      # 连接池中的最大空闲连接
            min-idle: 5       # 连接池中的最小空闲连接
      mvc:
        throw-exception-if-no-handler-found: true
        pathmatch:
          matching-strategy: ANT_PATH_MATCHER
    #  resources:
    #    add-mappings: false
    
    
    #mybatis
    mybatis-plus:
      logging:
        level:
          #      org.springframework: warn
          org.apache.ibatis.logging: debug
      #      com.tmxk.municipal.**.dao: debug
      mapper-locations: classpath*:/mapper/**/*.xml
      #实体扫描,多个package用逗号或者分号分隔
      typeAliasesPackage: io.renren.modules.*.entity
      global-config:
        #数据库相关配置
        db-config:
          #主键类型  AUTO:"数据库ID自增", INPUT:"用户输入ID", ID_WORKER:"全局唯一ID (数字类型唯一ID)", UUID:"全局唯一ID UUID";
          #      id-type: ASSIGN_ID
          id-type: AUTO
          logic-delete-value: 0
          logic-not-delete-value: 1
        banner: false
      #原生配置
      configuration:
        map-underscore-to-camel-case: true
        cache-enabled: false
        call-setters-on-nulls: true
        jdbc-type-for-null: 'null'
        log-impl: org.apache.ibatis.logging.slf4j.Slf4jImpl
    
    
    renren:
      redis:
        open: false
      shiro:
        redis: false
      # APP模块,是通过jwt认证的,如果要使用APP模块,则需要修改【加密秘钥】
      jwt:
        # 加密秘钥
        secret: f4e2e52034348f86b67cde581c0f9eb5[www.renren.io]
        # token有效时长,7天,单位秒
        expire: 604800
        header: token

    2. table-tree

效果图


后端项目结构

2.1 后端准备

  • 数据表创建

    sql 复制代码
    DROP TABLE IF EXISTS `tb_unit`;
    CREATE TABLE `tb_unit`  (
      `id` int NOT NULL AUTO_INCREMENT COMMENT '主键',
      `unit` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_croatian_ci NULL DEFAULT NULL COMMENT '单位名称',
      `pid` int NULL DEFAULT NULL COMMENT '父id',
      PRIMARY KEY (`id`) USING BTREE
    ) ENGINE = InnoDB AUTO_INCREMENT = 9 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_croatian_ci COMMENT = '用户所属单位设置表' ROW_FORMAT = Dynamic;
    
    SET FOREIGN_KEY_CHECKS = 1;
  • common模块

    • R【通用返回类】

      java 复制代码
      /**
       * 返回数据
       *
       * @author Mark sunlightcs@gmail.com
       */
      public class R extends HashMap<String, Object> {
      	private static final long serialVersionUID = 1L;
      
          public static String data = "data";
      
          public R() {
      		put("code", 0);
      		put("msg", "success");
      	}
      	
      	public static R error() {
      		return error(HttpStatus.SC_INTERNAL_SERVER_ERROR, "未知异常,请联系管理员");
      	}
      
      	public static R error(ErrorCode code) {
      		return error(code.getErrorCode(), code.getMsg());
      	}
      
      	public static R error(String msg) {
      		return error(HttpStatus.SC_INTERNAL_SERVER_ERROR, msg);
      	}
      	
      	public static R error(int code, String msg) {
      		R r = new R();
      		r.put("code", code);
      		r.put("msg", msg);
      		return r;
      	}
      
      	public static R ok(String msg) {
      		R r = new R();
      		r.put("msg", msg);
      		return r;
      	}
      	
      	public static R ok(Map<String, Object> map) {
      		R r = new R();
      		r.putAll(map);
      		return r;
      	}
      	
      	public static R ok() {
      		return new R();
      	}
      
      	public R put(String key, Object value) {
      		super.put(key, value);
      		return this;
      	}
      }
    • ErrorCode

      java 复制代码
      public enum ErrorCode {
          MANAGER_NOT_FOUND(412001, "主管未设置或不存在"),
          MANAGER_NOT_EQUAL(412002, "主管id不一致, 维修设施信息和维修工单的负责主管不一致"),
          INSTALLREPAIR_STATE_NOT_CORRECT(412003, "维修信息状态(status)错误,用户新上传的维修信息状态应为0(等待维修)"),
          INSTALLREPAIR_ISREPAIR_NOT_CORRECT(412004, "维修信息是否需要维修字段设置错误,允许的状态有0(不需要维修),1(需要维修),2(审核中)"),
          STATUS_NOT_FOUND(412005, "维修信息状态设置错误,允许的状态有0(等待维修),1(正在维修),2(维修完成)"),
          SMS_SEND_FAIL(412006, "短信发送错误, 请联系管理员"),
          SYSTEM_ERROR(412007, "服务器异常"),
          USER_NOT_FOUND(412008, "用户不存在"),
          DATA_ERROR(412009, "数据异常,服务器未接收到数据或传输数据为空"),
          NOT_CONTAIN_SPECIAL_CHAR(412010, "填写字符串信息不应该包含特殊字符"),
          PASSWORD_TO_SHORT(412011, "密码过短,不该小于6位"),
          REGISTER_ERROR(412012, "注册失败"),
          PASSWORD_NOT_EQUAL(412013, "两次密码不一致"),
          USERNAME_DUPLICATE(412014, "用户名已存在"),
          NOT_LOGIN(412015, "未登录"),
          INVALID_SESSION_KEY(412016, "sessionKey异常,请重试"),
          DECRYPTION_ERROR(412017, "用户信息解密异常,请重试"),
          NOT_MANAGER(412018, "您不是主管,请通过普通用户方式登录或者联系管理员升级为主管"),
          SESSIONID_INVALID(412019, "sessionId有误,服务器中不存在"),
          NOT_NULL_MARK(412020, "mark为空"),
          CODE_ERROR(412021, "code错误"),
          APPEALS_LACK_PROPERTY(412022, "appeals缺少property作为区分三表的标志"),
          APPEALS_WRONG_PROPERTY(412023, "appeals的property错误"),
          LOGIN_TIMEOUT(412024, "登录超时"),
          NO_WORKER_REPAIR(412025, "本条记录没有工人负责,请先设置负责工人"),
          WORKER_HAD_FOUND(412026, "本条记录已有负责的工人,请勿重复设置"),
          WORKER_NOT_EXIST(412027, "工人不存在"),
          VISIT_TOO_FREQUENCY(412028, "您的访问过于频繁,被系统认定为机器人,请稍后访问"),
          THINGS_DATA_LENGTH_INVALID(412029, "微信订阅消息的thing.DATA类型数据长度不能大于20"),
          REAPEAT_ORDER(412030, "重复下单"),
          REAPEAT_RECE_ORDER(412031, "重复接单"),
          REAPEAT_UPLOAD(412032, "重复提交");
      
          /**
           * 错误码
           */
          private int errorCode;
      
          /**
           * 错误信息
           */
          private String msg;
      
          ErrorCode() {}
      
          ErrorCode(int errorCode, String msg) {
              this.errorCode = errorCode;
              this.msg = msg;
          }
      
          public int getErrorCode() {
              return errorCode;
          }
      
          public String getMsg() {
              return msg;
          }
      }
  • entity

    java 复制代码
    package com.fgbg.demo.entity;
    
    import com.baomidou.mybatisplus.annotation.IdType;
    import com.baomidou.mybatisplus.annotation.TableField;
    import com.baomidou.mybatisplus.annotation.TableId;
    import com.baomidou.mybatisplus.annotation.TableName;
    import java.io.Serializable;
    import java.util.List;
    
    import lombok.Data;
    
    /**
     * 用户所属单位设置表
     * @TableName tb_unit
     */
    @TableName(value ="tb_unit")
    @Data
    public class TbUnit implements Serializable {
        /**
         * 主键
         */
        @TableId(type = IdType.AUTO)
        private Integer id;
    
        /**
         * 单位名称
         */
        private String unit;
    
        /**
         * 父id
         */
        private Integer pid;
    
        @TableField(exist = false)
        private List<TbUnit> children;
    
        @TableField(exist = false)
        private static final long serialVersionUID = 1L;
    }
  • controller

    java 复制代码
        @RequestMapping("/list")
        public R list() {
            List<TbUnit> list = unitService.listAll();
            /*----
            {
                code: 0,
                msg: 'xxx',
                data: [A, B, C, D, E, F, G, H]
            }
            ---*/
            return R.ok().put("data", list);
        }
  • service【核心逻辑】

    java 复制代码
        /**
         * 查询所有的unit数据, 并返回树形结构
         *
         * @return
         */
        @Override
        public List<TbUnit> listAll() {
            // 查询所有数据
            List<TbUnit> list = this.list();
            // 建立map映射(id->index)
            HashMap<Integer, Integer> map = new HashMap<>();
            for (int index = 0; index < list.size(); index++) {
                Integer id = list.get(index).getId();
                map.put(id, index);
            }
            // ...
            for (int i = 0; i < list.size(); i++) {
                TbUnit node = list.get(i);
                Integer pid = node.getPid();
                // 有父亲
                if (pid != null) {
                    // 找到pid的父亲, 并把当前节点(node)添加到父亲节点的children里面
                    Integer indexParent = map.get(pid);
                    // 获取父亲节点
                    TbUnit parent = list.get(indexParent);
                    if (parent.getChildren() == null) {
                        parent.setChildren(new ArrayList<>());
                    }
                    // 向父亲节点的children字段添加当前node
                    parent.getChildren().add(node);
                }
            }
            // 过滤出一级节点
            List<TbUnit> ans = list.stream().filter(e -> e.getPid() == null).collect(Collectors.toList());
            return ans;
        }
  • 返回的json数据

    json 复制代码
    {
      "msg": "success",
      "code": 0,
      "data": [
        {
          "id": 9,
          "unit": "浙江省",
          "pid": null,
          "children": [
            {
              "id": 10,
              "unit": "杭州市",
              "pid": 9,
              "children": [
                {
                  "id": 11,
                  "unit": "滨江区",
                  "pid": 10,
                  "children": null
                },
                {
                  "id": 12,
                  "unit": "余杭区",
                  "pid": 10,
                  "children": null
                }
              ]
            },
            {
              "id": 13,
              "unit": "宁波市",
              "pid": 9,
              "children": null
            },
            {
              "id": 14,
              "unit": "温州市",
              "pid": 9,
              "children": null
            }
          ]
        }
      ]
    }

    2.2 前端准备

  • /src/api/tree.ts

    ts 复制代码
    import { http } from "@/utils/http";
    import { R, baseUrlApi } from "./utils";
    
    export class UnitEntity {
      id: Number;
      unit: String;
      pid: Number;
      children: Array<UnitEntity>;
    }
    
    /** 获取全部的unit数据 */
    export const getData = () => {
      return http.request<R<Array<UnitEntity>>>("get", baseUrlApi("unit/list"));
    };
  • /src/api/utils.ts

    ts 复制代码
    export const baseUrlApi = (url: string) => `/api_demo/${url}`;
    
    /** 后端返回通用数据类型 */
    export type R<T> = {
      code: Number;
      msg: String;
      data: T;
    };
    
    /** 同步休眠函数, 参数为毫秒 */
    export const sleep = (ms: number): Promise<void> => {
      return new Promise(resolve => setTimeout(resolve, ms));
    };
    
    /** 分页数据类型 */
    export type PageUtils<T> = {
      /** 总记录数 */
      totalCount: number;
      /** 每页记录数 */
      pageSize: number;
      /** 总页数 */
      totalPage: number;
      /** 当前页数 */
      currPage: number;
      /** 列表数据 */
      list: Array<T>;
    };
    
    export const getStoreUser = () => {
      const res = sessionStorage.getItem("user-info");
      // const res = sessionStorage.getItem("user-info");
      console.log(res);
      return JSON.parse(res);
    };
  • /src/views/welecome/index.vue

js 复制代码
 <script setup lang="ts">
 import { ref, onMounted } from "vue";
 import { UnitEntity, getData } from "@/api/tree.ts";
 defineOptions({
   name: "Welcome"
 });
 
 const tableData = ref<Array<UnitEntity>>();
 
 onMounted(() => {
   getData().then(res => {
     console.log(res);
     if (res.code === 0) {
       tableData.value = res.data;
     }
   });
 });
 </script>
 
 <template>
   <el-table
     :data="tableData"
     style="width: 100%; margin-bottom: 20px"
     row-key="id"
     border
     default-expand-all
   >
     <el-table-column prop="id" label="序号" sortable />
     <el-table-column prop="unit" label="单位" sortable />
     <el-table-column
       fixed="right"
       header-align="center"
       align="center"
       width="150"
       label="操作"
     >
       <template v-slot="scope">
         <el-button
           type="text"
           size="small"
           @click="addOrUpdateHandle(scope.row.id)"
           >修改</el-button
         >
       </template>
     </el-table-column>
   </el-table>
 </template>
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