文章目录


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

已录制视频
b站视频链接

仓库地址
https://github.com/xuhuafeifei/fgbg-font-and-back.git

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

    git clone https://github.com/pure-admin/pure-admin-thin.git

  • 安装前端依赖

    pnpm i

  • 运行前端项目

    pnpm run dev

后端

  • 构建springboot项目

  • pom.xml

        <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

    # 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

在这里插入图片描述
后端项目结构
在这里插入图片描述

2.1 后端准备

  • 数据表创建

    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】

      /**
 * 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

      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

    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

        @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】

        /**
     * 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

    {
  "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

    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

    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

 <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>
# java
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