前后端分离 权限系统[SpringBoot2+SpringSecurity+Vue+ElementPlus]

前言:创建一个根目录管理前端和后端的项目 比如 E:\javaStudy\SOFAB2

gitee仓库地址[项目完整代码都在里面了]:SOFAB: 权限管理系统

搭建后端系统架构

1.创建jd-admin项目

2.pom.xml 引入依赖

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.jd</groupId>
    <artifactId>jd-admin</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>jd-admin</name>
    <description>jd-admin</description>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.2.RELEASE</version>
    </parent>
    <properties>
        <java.version>1.8</java.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <spring-boot.version>2.3.2.RELEASE</spring-boot.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>

        <!--连接池-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.12</version>
        </dependency>

        <!--mp启动器-->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.4.3</version>
        </dependency>

        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.40</version>
        </dependency>

        <!--jwt-->
        <dependency>
            <groupId>com.auth0</groupId>
            <artifactId>java-jwt</artifactId>
            <version>4.3.0</version>
        </dependency>
        <dependency>
            <groupId>io.jsonwebtoken</groupId>
            <artifactId>jjwt</artifactId>
            <version>0.9.1</version>
        </dependency>

        <dependency>
            <groupId>commons-io</groupId>
            <artifactId>commons-io</artifactId>
            <version>2.5</version>
        </dependency>

        <!--lombok-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>

        <!--redis缓存-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>

        <!--lettuce poll 缓存连接池-->
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-pool2</artifactId>
        </dependency>

        <!--hutool工具类-->
        <dependency>
            <groupId>cn.hutool</groupId>
            <artifactId>hutool-all</artifactId>
            <version>5.3.3</version>
        </dependency>
    </dependencies>
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>${spring-boot.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

 3.在resources目录下创建application.yml文件

server:
  port: 81
  servlet:
    context-path: /

spring:
  datasource: #mysql数据连接池配置
    driver-class-name: com.mysql.jdbc.Driver
    type: com.alibaba.druid.pool.DruidDataSource
    url: jdbc:mysql://localhost:3306/db_admin?useUnicode=true&characterEncoding=utf-8&useSSL=true&serverTimezone=UTC
    username: root
    password: yr
  redis: #redis配置
    host: 192.168.200.130 #ip
    port: 6379 #端口
    password: yr #密码
    lettuce: #lettuce redis客户端配置
      pool: #连接池配置
        max-active: 8 #连接池最大连接数[使用负值表示没有限制] 默认 8
        max-wait: 200s #连接池最大阻塞等待事件[使用负值表示没有限制] 默认 -1
        max-idle: 8 #连接池中的最大空闲连接 默认 8
        min-idle: 0 #连接池中最小空闲连接 默认 0

mybatis-plus:
  global-config:
    db-config:
      id-type: auto #主键自增
  configuration:
    map-underscore-to-camel-case: true #开启下划线到驼峰命名法的自动映射
    auto-mapping-behavior: full #置自动映射行为为 full:会自动映射所有的结果集,无论是否有嵌套结果集映射
    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl #sql日志输出
  mapper-locations: classpath:mapper/*.xml #XXXMapper.xml文件存放路径

 4.注意redis要启动 且ip是192.168.200.130[我是把redis安装在了linux虚拟机上 可以使用ip address查看ip]

 5.创建数据库和表

# 新建数据库 db_admin
CREATE DATABASE jd_admin;
USE jd_admin;

# 新建用户表
CREATE TABLE `sys_user` (
`id` BIGINT(20) NOT NULL PRIMARY KEY AUTO_INCREMENT COMMENT '用户Id',
username VARCHAR(100) DEFAULT NULL COMMENT '用户名',
`password` VARCHAR(100) DEFAULT NULL COMMENT '密码',
`avatar` VARCHAR(255) DEFAULT 'default.jpg' COMMENT '用户头像',
`email` VARCHAR(100) DEFAULT '' COMMENT '用户邮箱',
`phonenumber` VARCHAR(11) DEFAULT '' COMMENT '手机号码',
`login_date` DATETIME DEFAULT NULL COMMENT '最后登录时间',
`status` CHAR(1) DEFAULT '0' COMMENT '账号状态(0正常 1禁用)',
`create_time` DATETIME DEFAULT NULL COMMENT '创建时间',
`update_time` DATETIME DEFAULT NULL COMMENT '更新时间',
`remark` VARCHAR(500) DEFAULT NULL COMMENT '备注'
)ENGINE=INNODB CHARSET = utf8;

#测试数据

INSERT INTO
`sys_user`(`id`,`username`,`password`,`avatar`,`email`,`phonenumber`,`login_date`,`status`,`create_time`,`update_time`,`remark`)
 VALUES
(1,'tom','$2a$10$Kib4zuVhTzg3I1CoqJfd0unuY9G9ysI7cfbhyT3fi7k7Z/4pr3bGW','20220727112556000000325.jpg','caofeng4017@126.com','18862857417','2022-08-29 22:10:52','0','2022-06-09 08:47:52','2022-06-22 08:47:54','备注'),
(2,'common','$2a$10$tiArwm0GxChyEP5k0JGzsOuzyY15IKA.ZTl8S2aj3haYlKAfpwfl.','222.jpg','','','2022-08-22 21:34:39','0',NULL,NULL,NULL),
(3,'test','$2a$10$tiArwm0GxChyEP5k0JGzsOuzyY15IKA.ZTl8S2aj3haYlKAfpwfl.','333.jpg','','','2022-07-24 17:36:07','0',NULL,NULL,NULL),
(4,'1','$2a$10$lD0Fx7oMsFFmX9hVkmYy7eJteH8pBaXXro1X9DEMP5sbM.Z6Co55m','default.jpg','','',NULL,'1',NULL,NULL,NULL),
(5,'2',NULL,'default.jpg','','',NULL,'1',NULL,NULL,NULL),
(15,'fdsfs','$2a$10$AQVcp4hQ7REc5o7ztVnI7eX.sJdcYy3d1x2jm5CfrcCoMZMPacfpi','default.jpg','fdfa4@qq.com','18862851414','2022-08-02 02:22:45','1','2022-08-02 02:21:24','2022-08-01 18:23:16','fdfds4'),
(28,'sdfss2','$2a$10$7aNJxwVmefI0XAk64vrzYuOqeeImYJUQnoBrtKP9pLTGTWO2CXQ/y','default.jpg','dfds3@qq.com','18862857413',NULL,'1','2022-08-07 00:42:46','2022-08-06 16:43:04','ddd33'),
(29,'ccc','$2a$10$7cbWeVwDWO9Hh3qbJrvTHOn0E/DLYXxnIZpxZei0jY4ChfQbJuhi.','20220829080150000000341.jpg','3242@qq.com','18862584120','2022-08-29 19:52:27','0','2022-08-29 17:04:58',NULL,'xxx'),
(30,'ccc666','$2a$10$Tmw5VCM/K2vb837AZDYHQOqE3gPiRZKevxLsh/ozndpTSjdwABqaK','20220829100454000000771.jpg','fdafds@qq.com','18865259845','2022-08-29 22:05:18','0','2022-08-29 22:00:39',NULL,'ccc');
 

 

6.使用MybatisX插件快速生成 entity、mapper、service

 

 

 此时便可以看到该库下的表和字段了

 

 

 

好啦生成完毕!

 7.创建封装返回json的数据的通用类

package com.yr.java123admin.entity;

import lombok.Data;

import java.util.HashMap;
import java.util.Map;

/**
 * @author java大帝
 * @ClassName R
 * @description 封装返回参数的类,用于统一处理应用程序的响应结果。
 *              该类包含了消息、状态码和扩展数据等属性,以及一系列静态方法用于创建不同状态的响应对象。
 * @date 2025年01月13日
 * @version 1.0
 */
@Data
public class R {
    // 消息
    private String msg;
    // 状态码
    private Integer code;
    // 数据
    private Map<String, Object> data = new HashMap<>();

    /**
     * 创建一个表示成功的R对象,默认消息为 "success",状态码为 200。
     *
     * @return 表示成功的R对象。
     */
    public static R success() {
        R r = new R();
        r.setMsg("success");
        r.setCode(200);
        return r;
    }

    /**
     * 创建一个表示成功的R对象,自定义成功消息,状态码为 200。
     *
     * @param msg 自定义的成功消息。
     * @return 表示成功的R对象。
     */
    public static R success(String msg) {
        R r = new R();
        r.setMsg(msg);
        r.setCode(200);
        return r;
    }

    /**
     * 创建一个表示成功的R对象,带有扩展数据,默认消息为 "success",状态码为 200。
     *
     * @param extend 包含扩展数据的Map。
     * @return 表示成功的R对象。
     */
    public static R success(Map<String, Object> extend) {
        R r = new R();
        r.setMsg("success");
        r.setCode(200);
        r.setData(extend);
        return r;
    }

    /**
     * 创建一个表示失败的R对象,默认消息为 "未知异常 请联系管理员!",状态码为 500。
     *
     * @return 表示失败的R对象。
     */
    public static R fail() {
        R r = new R();
        r.setMsg("未知异常 请联系管理员!");
        r.setCode(500);
        return r;
    }

    /**
     * 创建一个表示失败的R对象,自定义失败消息,状态码为 500。
     *
     * @param msg 自定义的失败消息。
     * @return 表示失败的R对象。
     */
    public static R fail(String msg) {
        R r = new R();
        r.setMsg(msg);
        r.setCode(500);
        return r;
    }

    public static R fail(Integer code,String msg) {
        R r = new R();
        r.setMsg(msg);
        r.setCode(code);
        return r;
    }

    public R put(String key, Object val) {
        this.data.put(key, val);
        return this;
    }
}

8.创建controlelr.TestController 

package com.yr.java123admin.controller;

import com.yr.java123admin.entity.R;
import com.yr.java123admin.entity.SysUser;
import com.yr.java123admin.service.SysUserService;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;
import java.util.HashMap;
import java.util.List;

/**
 * @author java大帝
 * @ClassName TestController
 * @description: 测试包
 * @date 2025年 01月 13日
 * @version: 1.0
 */
@RestController
@RequestMapping("/test")
public class TestController {
    @Resource
    private SysUserService sysUserService;

    @RequestMapping("list")
    public R userList(){
        HashMap<String, Object> resultMap = new HashMap<>();
        List<SysUser> list = sysUserService.list();
        resultMap.put("userList",list);
        return R.success(resultMap);
    }

}

9.修改一下启动类并使用浏览器测试

package com.jd.jdadmin;

import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
@MapperScan("com.jd.jdadmin.mapper") //扫描XXXMapper类
public class JdAdminApplication {

    public static void main(String[] args) {
        SpringApplication.run(JdAdminApplication.class, args);
    }

}

搭建前端系统架构

1.使用命令创建vue3

 

 2.使用idea打开SOFAB2

 3.启动前端项目

 

使用浏览器访问

4.安装axios和elementPlus依赖

5.测试elementPlus是否安装成功

        在main.ts中引入

import ElementPlus from 'element-plus'
import 'element-plus/dist/index.css'
app.use(ElementPlus)

        在App.vue中使用elementPlus的按钮组件

<template>
  <div>
    <el-button type="danger">猜猜我是谁</el-button>
  </div>
</template>

<script setup lang="ts">

</script>

<style scoped>

</style>

         浏览器访问

JWT前后端交互

        Json Web Token(jwt),是为了在网络应用环境间传递声明而执行的一种基于JSON的开放标准(RFC 7519)

        JWT就是一段字符串,用来进行用户身份认证的凭证,该字符串分成三段[头部、载荷、凭证]

           1.创建common.constant包 并创建JwtConstant类

       

package com.jd.jdadmin.common.constant;

/**
 * @author java大帝
 * @ClassName JwtConstant
 * @description: 常量类
 * @date 2025年 01月 13日
 * @version: 1.0
 */
public class JwtConstant {
    /*token*/
    public static final int JWT_ERRCODE_NULL = 4000; // token不存在
    public static final int JWT_ERRCODE_EXPIRE = 4001; // token过期
    public static final int JWT_ERRCODE_FAIL = 4002; // 认证不通过

    /*jwt*/
    public static final String JWT_SECERT = "1ba@842as45*74s?1p41-15a*s/dj;"; // 密钥
    public static final long JWT_TTL = 24* 60 * 60 * 1000; //  24小时
}

2.在entity包下创建CheckResult类

package com.jd.jdadmin.entity;

import io.jsonwebtoken.Claims;

/**
 * @author java大帝
 * @ClassName CheckResult
 * @description: 认证结果
 * @date 2025年 01月 13日
 * @version: 1.0
 */
public class CheckResult {
    private int errCode;
    private boolean success;
    private Claims claims;

    public int getErrCode() {
        return errCode;
    }

    public void setErrCode(int errCode) {
        this.errCode = errCode;
    }

    public boolean isSuccess() {
        return success;
    }

    public void setSuccess(boolean success) {
        this.success = success;
    }

    public Claims getClaims() {
        return claims;
    }

    public void setClaims(Claims claims) {
        this.claims = claims;
    }
}

3.创建util包 并创建JwtUtils类 

package com.jd.jdadmin.util;

import cn.hutool.core.codec.Base64;
import com.jd.jdadmin.common.constant.JwtConstant;
import com.jd.jdadmin.entity.CheckResult;
import io.jsonwebtoken.*;

import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
import java.util.Date;

/**
 * @author java大帝
 * @ClassName JwtUtils
 * @description: Jwt工具类
 * @date 2025年 01月 13日
 * @version: 1.0
 */
public class JwtUtils {
    // 生成JWT
    public static String createJWT(String id,String subject,long ttlMillis){
        SignatureAlgorithm signatureAlgorithm = SignatureAlgorithm.HS256;
        long nowMillis = System.currentTimeMillis();
        Date now = new Date(nowMillis);
        SecretKey secretKey = generalKey();
        JwtBuilder jwtBuilder = Jwts.builder()
                .setId(id)
                .setSubject(subject) // 主体
                .setIssuer("yr") // 签发者
                .setIssuedAt(now) // 签发时间
                .signWith(signatureAlgorithm, secretKey);// 签名算法以及密钥
        if (ttlMillis >= 0){
            long expMillis = nowMillis + ttlMillis;
            Date expDate = new Date(expMillis);
            jwtBuilder.setExpiration(expDate); //设置过期时间
        }
        return  jwtBuilder.compact();
    }

    // 生成jwt token
    public static String genJwtToken(String username){return createJWT(username,username,60 * 60 * 1000);}

    // 验证JWT
    public static CheckResult validateJWT(String jwtStr){
        CheckResult checkResult = new CheckResult();
        Claims claims = null;
        try {
            claims = parseJWT(jwtStr);
            checkResult.setSuccess(true);
            checkResult.setClaims(claims);
        } catch (ExpiredJwtException e) {
            checkResult.setErrCode(JwtConstant.JWT_ERRCODE_EXPIRE);
            checkResult.setSuccess(false);
        } catch (SignatureException e){
            checkResult.setErrCode(JwtConstant.JWT_ERRCODE_FAIL);
            checkResult.setSuccess(false);
        } catch (Exception e) {
            checkResult.setErrCode(JwtConstant.JWT_ERRCODE_FAIL);
            checkResult.setSuccess(false);
        }
        return checkResult;
    }

    // 生成加密key
    public static SecretKey generalKey(){
        byte[] encodeKey = Base64.decode(JwtConstant.JWT_SECERT);
        SecretKeySpec key = new SecretKeySpec(encodeKey, 0, encodeKey.length, "AES");
        return key;
    }

    // 解析JWT字符串
    public static Claims parseJWT(String jwt){
        SecretKey secretKey = generalKey();
        return Jwts.parser()
                .setSigningKey(secretKey)
                .parseClaimsJws(jwt)
                .getBody();
    }

    public static void main(String[] args) {
        // 小明失效 10s
        String sc = createJWT("1", "小明", 60 * 60 * 1000);
        System.out.println(sc);
        System.out.println(validateJWT(sc).getErrCode());
        System.out.println(validateJWT(sc).getClaims().getId());
        System.out.println(validateJWT(sc).getClaims().getSubject());

        System.out.println(validateJWT(sc).getClaims());

    }
}

测试一下

 3.发请求测试login登录返回token

        3.1后端:创建测试类controller.TestController

@RestController
@RequestMapping("/test")
public class TestController {
    @Resource
    private SysUserService sysUserService;

    @RequestMapping("list")
    public R userList(@RequestHeader(required = false) String token){
        if (StrUtil.isNotEmpty(token)){
            HashMap<String, Object> resultMap = new HashMap<>();
            List<SysUser> list = sysUserService.list();
            resultMap.put("userList",list);
            return R.success(resultMap);
        }
        return R.fail(401,"无权访问");
    }

    @RequestMapping("login")
    public R login(){
        String token = JwtUtils.genJwtToken("java123456");
        return R.success().put("token",token);
    }

}

        3.2 后端:创建util.StrUtil字符串的工具类

package com.jd.jdadmin.util;

import java.util.ArrayList;
import java.util.List;
import java.util.Random;

/**
 * @author java大帝
 * @ClassName StrUtil
 * @description: 字符串工具类
 * @date 2025年 01月 13日
 * @version: 1.0
 */
public class StrUtil {
    /**
     * 判断是否是空
     * @param str
     * @return
     */
    public static boolean isEmpty(String str){
        if(str==null||"".equals(str.trim())){
            return true;
        }else{
            return false;
        }
    }

    /**
     * 判断是否不是空
     * @param str
     * @return
     */
    public static boolean isNotEmpty(String str){
        if((str!=null)&&!"".equals(str.trim())){
            return true;
        }else{
            return false;
        }
    }

    /**
     * 格式化模糊查询
     * @param str
     * @return
     */
    public static String formatLike(String str){
        if(isNotEmpty(str)){
            return "%"+str+"%";
        }else{
            return null;
        }
    }

    /**
     * 过滤掉集合里的空格
     * @param list
     * @return
     */
    public static List<String> filterWhite(List<String> list){
        List<String> resultList=new ArrayList<String>();
        for(String l:list){
            if(isNotEmpty(l)){
                resultList.add(l);
            }
        }
        return resultList;
    }

    /**
     * 去除html标签
     */
    public static String stripHtml(String content) {
        // <p>段落替换为换行
        content = content.replaceAll("<p .*?>", "\r\n");
        // <br><br/>替换为换行
        content = content.replaceAll("<br\\s*/?>", "\r\n");
        // 去掉其它的<>之间的东西
        content = content.replaceAll("\\<.*?>", "");
        // 去掉空格
        content = content.replaceAll(" ", "");
        return content;
    }

    /**
     * 生成六位随机数
     * @return
     */
    public static String genSixRandomNum(){
        Random random = new Random();
        String result="";
        for (int i=0;i<6;i++)
        {
            result+=random.nextInt(10);
        }
        return result;
    }

    /**
     * 生成由[A-Z,0-9]生成的随机字符串
     * @param length  欲生成的字符串长度
     * @return
     */
    public static String getRandomString(int length){
        Random random = new Random();

        StringBuffer sb = new StringBuffer();

        for(int i = 0; i < length; ++i){
            int number = random.nextInt(2);
            long result = 0;

            switch(number){
                case 0:
                    result = Math.round(Math.random() * 25 + 65);
                    sb.append(String.valueOf((char)result));
                    break;
                case 1:

                    sb.append(String.valueOf(new Random().nextInt(10)));
                    break;
            }
        }
        return sb.toString();
    }


}

 3.3前端:二次封装axios

// 引入axios
import axios from 'axios'
import {ElMessage} from "element-plus"
import useUserStore from "@/stores/modules/user"
//基础路径
export let baseUrl = 'http://localhost:81/'

const request = axios.create({
    baseURL:baseUrl, // 基础路径
    timeout:5000 // 超时时间
})

// 请求拦截器
request.interceptors.request.use(config =>  {
    let userStore = useUserStore()
    // 在发送请求之前做些什么 比如携带token请求头
    config.headers.token = userStore.token
    return config
},err => {
    return Promise.reject(err)
})

// 响应拦截器
request.interceptors.response.use(resp => {
    console.log(resp)
    return resp.data
},err => {
    //错误处理
    let message = ''
    let status = err.response.status
    switch (status){
        case 401:
            message = 'token过期'
            break
        case 403:
            message = '无权访问'
            break
        case 404:
            message='请求地址有误'
            break
        case 500:
            message = '服务器出错'
            break
        default:
            message = '网络错误'
            break
    }
    ElMessage({
        type:'error',
        message
    })
})
export default request

 3.4前端:创建用户相关小仓库

 大仓库

import {createPinia} from "pinia"

let pinia = createPinia()

export default pinia

         在main.ts中引入大仓库并使用

import pinia from "@/stores"
app.use(pinia) 

        小仓库

import { defineStore } from "pinia"
import request from "@/util/request"
import {GET_TOKEN, SET_TOKEN} from "@/util/token";


const useUserStore = defineStore('User',{
    state(){
        return {
            token:GET_TOKEN()
        }
    },
    actions:{
        async userLogin(){
            let res = await request.get('test/login')
            if (res.code == 200){
                SET_TOKEN(res.data.token)
                return 'ok'
            } else {
                return Promise.reject(res.msg)
            }
        }
    }
})

export default useUserStore

3.5 创建token工具类

export const SET_TOKEN = (token:string)=> {
    localStorage.setItem("TOKEN",token)
}

export const GET_TOKEN = ()=> {
    return localStorage.getItem("TOKEN")
}

export const REMOVE_TOKEN = ()=> {
    return localStorage.removeItem("TOKEN")
}

3.6App.vue中写相关测试代码

<template>
  <div>
    <el-button type="danger" @click="handleLogin">测试登录</el-button>
    <el-button type="primary" @click="handleUserList">测试获取用户请求</el-button>
  </div>
</template>

<script setup lang="ts">
import useUserStore from "@/stores/modules/user"
import request from "@/util/request"


let userStore = useUserStore()
const handleLogin = async () => {
  await userStore.userLogin()
}

const handleUserList = async () => {
  let res = await request.get('test/list')
  if (res.code == 200) {
    console.log('userlist',res)
  }
}
</script>

<style scoped>

</style>

 3.7浏览器访问出现跨域问题

 3.8创建config.WebAppConfigurer解决跨域

        

package com.jd.jdadmin.config;

import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

/**
 * @author java大帝
 * @ClassName WebAppConfigurer
 * @description: 跨域解决
 * @date 2025年 01月 13日
 * @version: 1.0
 */
@Configuration
public class WebAppConfigurer implements WebMvcConfigurer {
    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry
                .addMapping("/**")
                .allowedOrigins("*")
                .allowCredentials(true)
                .allowedMethods("GET","HEAD","POST","DELETE","OPTIONS")
                .maxAge(3600);
    }
}

 测试成功

 登录功能实现

        前端静态登录页面实现

                1.准备两个样式文件

border.css

@charset "utf-8";
.border,
.border-top,
.border-right,
.border-bottom,
.border-left,
.border-topbottom,
.border-rightleft,
.border-topleft,
.border-rightbottom,
.border-topright,
.border-bottomleft {
    position: relative;
}
.border::before,
.border-top::before,
.border-right::before,
.border-bottom::before,
.border-left::before,
.border-topbottom::before,
.border-topbottom::after,
.border-rightleft::before,
.border-rightleft::after,
.border-topleft::before,
.border-topleft::after,
.border-rightbottom::before,
.border-rightbottom::after,
.border-topright::before,
.border-topright::after,
.border-bottomleft::before,
.border-bottomleft::after {
    content: "\0020";
    overflow: hidden;
    position: absolute;
}
/* border
 * 因,边框是由伪元素区域遮盖在父级
 * 故,子级若有交互,需要对子级设置
 * 定位 及 z轴
 */
.border::before {
    box-sizing: border-box;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    border: 1px solid #eaeaea;
    transform-origin: 0 0;
}
.border-top::before,
.border-bottom::before,
.border-topbottom::before,
.border-topbottom::after,
.border-topleft::before,
.border-rightbottom::after,
.border-topright::before,
.border-bottomleft::before {
    left: 0;
    width: 100%;
    height: 1px;
}
.border-right::before,
.border-left::before,
.border-rightleft::before,
.border-rightleft::after,
.border-topleft::after,
.border-rightbottom::before,
.border-topright::after,
.border-bottomleft::after {
    top: 0;
    width: 1px;
    height: 100%;
}
.border-top::before,
.border-topbottom::before,
.border-topleft::before,
.border-topright::before {
    border-top: 1px solid #eaeaea;
    transform-origin: 0 0;
}
.border-right::before,
.border-rightbottom::before,
.border-rightleft::before,
.border-topright::after {
    border-right: 1px solid #eaeaea;
    transform-origin: 100% 0;
}
.border-bottom::before,
.border-topbottom::after,
.border-rightbottom::after,
.border-bottomleft::before {
    border-bottom: 1px solid #eaeaea;
    transform-origin: 0 100%;
}
.border-left::before,
.border-topleft::after,
.border-rightleft::after,
.border-bottomleft::after {
    border-left: 1px solid #eaeaea;
    transform-origin: 0 0;
}
.border-top::before,
.border-topbottom::before,
.border-topleft::before,
.border-topright::before {
    top: 0;
}
.border-right::before,
.border-rightleft::after,
.border-rightbottom::before,
.border-topright::after {
    right: 0;
}
.border-bottom::before,
.border-topbottom::after,
.border-rightbottom::after,
.border-bottomleft::after {
    bottom: 0;
}
.border-left::before,
.border-rightleft::before,
.border-topleft::after,
.border-bottomleft::before {
    left: 0;
}
@media (max--moz-device-pixel-ratio: 1.49), (-webkit-max-device-pixel-ratio: 1.49), (max-device-pixel-ratio: 1.49), (max-resolution: 143dpi), (max-resolution: 1.49dppx) {
    /* 默认值,无需重置 */
}
@media (min--moz-device-pixel-ratio: 1.5) and (max--moz-device-pixel-ratio: 2.49), (-webkit-min-device-pixel-ratio: 1.5) and (-webkit-max-device-pixel-ratio: 2.49), (min-device-pixel-ratio: 1.5) and (max-device-pixel-ratio: 2.49), (min-resolution: 144dpi) and (max-resolution: 239dpi), (min-resolution: 1.5dppx) and (max-resolution: 2.49dppx) {
    .border::before {
        width: 200%;
        height: 200%;
        transform: scale(.5);
    }
    .border-top::before,
    .border-bottom::before,
    .border-topbottom::before,
    .border-topbottom::after,
    .border-topleft::before,
    .border-rightbottom::after,
    .border-topright::before,
    .border-bottomleft::before {
        transform: scaleY(.5);
    }
    .border-right::before,
    .border-left::before,
    .border-rightleft::before,
    .border-rightleft::after,
    .border-topleft::after,
    .border-rightbottom::before,
    .border-topright::after,
    .border-bottomleft::after {
        transform: scaleX(.5);
    }
}
@media (min--moz-device-pixel-ratio: 2.5), (-webkit-min-device-pixel-ratio: 2.5), (min-device-pixel-ratio: 2.5), (min-resolution: 240dpi), (min-resolution: 2.5dppx) {
    .border::before {
        width: 300%;
        height: 300%;
        transform: scale(.33333);
    }
    .border-top::before,
    .border-bottom::before,
    .border-topbottom::before,
    .border-topbottom::after,
    .border-topleft::before,
    .border-rightbottom::after,
    .border-topright::before,
    .border-bottomleft::before {
        transform: scaleY(.33333);
    }
    .border-right::before,
    .border-left::before,
    .border-rightleft::before,
    .border-rightleft::after,
    .border-topleft::after,
    .border-rightbottom::before,
    .border-topright::after,
    .border-bottomleft::after {
        transform: scaleX(.33333);
    }
}

 reset.css

/* http://meyerweb.com/eric/tools/css/reset/
   v2.0 | 20110126
   License: none (public domain)
*/

html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
    margin: 0;
    padding: 0;
    border: 0;
    font-size: 100%;
    font: inherit;
    vertical-align: baseline;
}
/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure,
footer, header, hgroup, menu, nav, section {
    display: block;
}
html{
    font-size: 12px;
}
body {
    line-height: 1;
}
ol, ul {
    list-style: none;
}
blockquote, q {
    quotes: none;
}
blockquote:before, blockquote:after,
q:before, q:after {
    content: '';
    content: none;
}
table {
    border-collapse: collapse;
    border-spacing: 0;
}

 2.准备好背景图片

 网址:The night sky over a mountain range with stars in the sky photo – Free Chamonix Image on Unsplash

3. 在main.ts中引入两个样式文件

// 引入样式文件
import '@/assets/styles/border.css'
import '@/assets/styles/reset.css'

4. 修改router/index.ts

import { createRouter, createWebHistory } from 'vue-router'

const router = createRouter({
  history: createWebHistory(import.meta.env.BASE_URL),
  routes: [
    {
      path: '/',
      name: 'home',
      component: () => import('@/views/Home.vue')
    },
    {
      path: '/login',
      name: 'login',
      component: () => import('@/views/Login.vue')
    }
  ]
})

export default router

5.创建Login.vue

<script setup>

const handleLogin = () => {

}
</script>

<template>
<div class="login">

    <el-form ref="loginRef" :model="loginForm" :rules="loginRules" class="login-form">
      <h3 class="title">java大帝 Vue3 后台管理系统</h3>

      <el-form-item prop="username">

        <el-input

            type="text"
            size="large"
            auto-complete="off"
            placeholder="账号"
        >

        </el-input>
      </el-form-item>
      <el-form-item prop="password">
        <el-input
            type="password"
            size="large"
            auto-complete="off"
            placeholder="密码"
            @keyup.enter="handleLogin"
            show-password
        >

        </el-input>
      </el-form-item>


      <el-checkbox  style="margin:0px 0px 25px 0px;">记住密码</el-checkbox>
      <el-form-item style="width:100%;">
        <el-button
            size="large"
            type="primary"
            style="width:100%;"
            @click.prevent="handleLogin"
        >
          <span>登 录</span>

        </el-button>

      </el-form-item>
    </el-form>
    <!--  底部  -->
    <div class="el-login-footer">
      <span>Copyright © 2013-2022 <a href="http://www.java1234.vip" target="_blank">java大帝.vip</a> 版权所有.</span>
    </div>
  </div>
</template>


<style lang="scss" scoped>
a{
  color:white
}
.login {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  background-image: url("../assets/images/bg.jpg");
  background-size: cover;
}
.title {
  margin: 0px auto 30px auto;
  text-align: center;
  color: #707070;
}

.login-form {
  border-radius: 6px;
  background: #ffffff;
  width: 400px;
  padding: 25px 25px 5px 25px;

  .el-input {
    height: 40px;



    input {
      display: inline-block;
      height: 40px;
    }
  }
  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 0px;
  }

}
.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}
.login-code {
  width: 33%;
  height: 40px;
  float: right;
  img {
    cursor: pointer;
    vertical-align: middle;
  }
}
.el-login-footer {
  height: 40px;
  line-height: 40px;
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: #fff;
  font-family: Arial;
  font-size: 12px;
  letter-spacing: 1px;
}
.login-code-img {
  height: 40px;
  padding-left: 12px;
}
</style>

6.安装scss

npm install sass sass-loader --save-dev   

7.修改App.vue 

<template>
  <router-view />
</template>

<script setup lang="ts">

</script>

<style>
html,body,#app {
  height: 100%;
}

.app-container {
  padding: 20px;
}
</style>

8.浏览器访问 

 全局注册Element-Plus的图标组件
 

1.安装element-plus icon

npm install @element-plus/icons-vue

2.将其注册为全局组件

import * as ElementPlusIconsVue from '@element-plus/icons-vue'

export  default {
    install(app:any){
        //@ts-ignore
        for (const [key, component] of Object.entries(ElementPlusIconsVue)) {
            app.component(key, component)
        }
    }
}

3.在main.ts中引入钩子并使用 

// 引入钩子
import globalComponent from '@/components/index'
app.use(globalComponent)

4.在Login.vue的表单项中使用

<el-form-item prop="username">

  <el-input
      prefix-icon="User"
      type="text"
      size="large"
      auto-complete="off"
      placeholder="账号"
  >

  </el-input>
</el-form-item>
<el-form-item prop="password">
  <el-input
      prefix-icon="Lock"
      type="password"
      size="large"
      auto-complete="off"
      placeholder="密码"
      @keyup.enter="handleLogin"
      show-password
  >

  </el-input>
</el-form-item>

SpringSecurity执行原理概述

        SpringSecurity简单原理

SpringSecurity有很多很多的拦截器 在执行流程里面主要有两个核心的拦截器

 1.登录验证拦截器 AuthenticationProcessingFilter

 2.资源管理拦截器AbstractSecurityInterceptor

但拦截器里面的实现需要一些组件来实现 所以就有了AuthenticationManager认证管理器、accessDecisionManager决策管理器等组件来支撑

 FilterChainProxy是一个代理 真正起作用的是各个Filter,这些Filter作为Bean被Spring管理,是Spring Security的核心,各有各的职责 不直接处理认证和授权,交由认证管理器和决策管理器处理!

大概流程

 认证管理

流程图解读:

1.用户提交用户名、密码被SecurityFilterChain中的UsernamePasswordAuthenticationFilter过滤器获取到,封装为请求Authentication,通常情况下是UsernamePasswordAuthenticationToken这个实现类.

2.然后过滤器将Authentication提交至认证管理器(AuthenticationManager)进行认证.

3.认证成功后,AuthenticationManager身份管理器返回一个被填充满了信息的(包括上面提到的权限信息、身份信息、细节信息,但密码通常会被移除)Authentication实例.

4.SecurityContextHolder安全上下文容器将第三步填充了信息的Authentication,通过SecurityContextHolder.getContext().setAuthentication(...)方法 设置到其中,可以看出AuthenticationManager接口(认证管理器)是认证相关的核心接口,也是发起认证的出发点,它的实现类为ProviderManager,而SpringSecurity支持多种认证方式,因此ProviderManager维护着一个List列表,存放多种认证方式,最终实际的认证工作是由AuthenticationProvider完成的,web表单对应的AuthenticationProvider实现类为DaoAuthenticationProvider,它的内部又维护着一个UserDetailsService负责UserDetails的获取,最终AuthenticationProvider将UserDetails填充至Authentication

授权管理

访问资源(即授权管理),访问url时,会通过FilterSecurityInterceptor拦截器拦截,其中会调用SecurityMetadataSource的方法来获取被拦截url所需的全部权限,再调用授权管理器AccessDecisionManager,这个授权管理器会通过Spring的全局缓存SecurityContextHolder获取用户的权限信息,还会获取被拦截的url和被拦截url所需的全部权限,然后根据所配的投票策略(有:一票否定、一票决定、少数服从多数等),如果权限足够,则决策通过,返回访问资源,请求放行,否则跳转到403页面、自定义页面。

详细执行流程

项目整合SpringSecurity 

 1.在pom.xml中加入SpringSecurity依赖

<!--springsecurity-->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-security</artifactId>
</dependency>

2.创建config.SecurityConfig类

package com.jd.jdadmin.config;

import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.http.SessionCreationPolicy;

/**
 * @author java大帝
 * @ClassName SecurityConfig
 * @description: TODO
 * @date 2025年 01月 14日
 * @version: 1.0
 */
@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true) // 启用了基于方法的安全性控制
public class SecurityConfig extends WebSecurityConfigurerAdapter {
    private static final String URI_WHITELIST[] = {
            "/login",
            "/logout",
            "captcha",
            "/password",
            "/image/**",
            "/test/**"
    };

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        // 开启跨域支持、关闭csrf支持、登录相关处理、退出登录、禁用 session配置、异常配置
        http
                .cors()
                .and()
                .csrf()
                .disable()
                .formLogin()
                .and()
                .sessionManagement()
                .sessionCreationPolicy(SessionCreationPolicy.STATELESS) // 无状态
                .and()
                .authorizeRequests()
                .antMatchers(URI_WHITELIST)                             // 白名单
                .permitAll()
                .anyRequest()
                .authenticated();
    }

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        super.configure(auth); // 使用默认的用户名和密码[内置]
    }
}

3.启动测试 此时浏览器访问http://localhost:81/test/list会报错 因为必须先登录

控制台会打印出密码

 重写登录成功和登录失败处理器

1.创建common.security包 和 LoginSuccessHandler类

package com.jd.jdadmin.common.security;

import cn.hutool.json.JSONUtil;
import com.jd.jdadmin.entity.R;
import com.jd.jdadmin.util.JwtUtils;
import org.springframework.security.core.Authentication;
import org.springframework.security.web.authentication.AuthenticationSuccessHandler;
import org.springframework.stereotype.Component;

import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * @author java大帝
 * @ClassName LoginSuccessHandler
 * @description: 登录成功后的处理器
 * @date 2025年 01月 14日
 * @version: 1.0
 */
@Component
public class LoginSuccessHandler implements AuthenticationSuccessHandler {
    @Override
    public void onAuthenticationSuccess(HttpServletRequest httpServletRequest, HttpServletRespo
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