1.引入MAVEN依赖
若依官方引入的是1.2.7版本。我选择了目前最常用的1.3.0版本。
在项目中给的 ruoyi-framework\pom.xml 添加依赖

<!-- anji滑块验证码 -->
    <dependency>
        <groupId>com.anji-plus</groupId>
        <artifactId>spring-boot-starter-captcha</artifactId>
        <version>1.3.0</version>
    </dependency>

2.修改application.yml,加入aj-captcha配置
ruoyi-admin模块中的application.yml中添加aj-captcha配置

spring.application.name=captcha-service
server.port=8088
 
# 滑动验证,底图路径,不配置将使用默认图片
# 支持全路径
# 支持项目路径,以classpath:开头,取resource目录下路径,例:classpath:images/jigsaw
aj.captcha.jigsaw=classpath:images/jigsaw
# 滑动验证,底图路径,不配置将使用默认图片
# 支持全路径
# 支持项目路径,以classpath:开头,取resource目录下路径,例:classpath:images/pic-click
aj.captcha.pic-click=classpath:images/pic-click
 
# 对于分布式部署的应用,我们建议应用自己实现CaptchaCacheService,比如用Redis或者memcache,
# 参考CaptchaCacheServiceRedisImpl.java
# 如果应用是单点的,也没有使用redis,那默认使用内存。
# 内存缓存只适合单节点部署的应用,否则验证码生产与验证在节点之间信息不同步,导致失败。
# !!! 注意啦,如果应用有使用spring-boot-starter-data-redis,
# 请打开CaptchaCacheServiceRedisImpl.java注释。
# redis ----->  SPI: 在resources目录新建META-INF.services文件夹(两层),参考当前服务resources。
# 缓存local/redis...
aj.captcha.cache-type=local
# local缓存的阈值,达到这个值,清除缓存
#aj.captcha.cache-number=1000
# local定时清除过期缓存(单位秒),设置为0代表不执行
#aj.captcha.timing-clear=180
#spring.redis.host=10.108.11.46
#spring.redis.port=6379
#spring.redis.password=
#spring.redis.database=2
#spring.redis.timeout=6000
 
# 验证码类型default两种都实例化。
aj.captcha.type=default
# 汉字统一使用Unicode,保证程序通过@value读取到是中文,可通过这个在线转换
# https://tool.chinaz.com/tools/unicode.aspx 中文转Unicode
# 右下角水印文字(我的水印)
aj.captcha.water-mark=我的水印
# 右下角水印字体(不配置时,默认使用文泉驿正黑)
# 由于宋体等涉及到版权,我们jar中内置了开源字体【文泉驿正黑】
# 方式一:直接配置OS层的现有的字体名称,比如:宋体
# 方式二:自定义特定字体,请将字体放到工程resources下fonts文件夹,支持ttf\ttc\otf字体
# aj.captcha.water-font=WenQuanZhengHei.ttf
# 点选文字验证码的文字字体(文泉驿正黑)
# aj.captcha.font-type=WenQuanZhengHei.ttf
# 校验滑动拼图允许误差偏移量(默认5像素)
aj.captcha.slip-offset=5
# aes加密坐标开启或者禁用(true|false)
aj.captcha.aes-status=true
# 滑动干扰项(0/1/2)
aj.captcha.interference-options=2
 
#点选字体样式 默认Font.BOLD
aj.captcha.font-style=1
#点选字体字体大小
aj.captcha.font-size=25
#点选文字个数,存在问题,暂不支持修改
#aj.captcha.click-word-count=4
 
 
aj.captcha.history-data-clear-enable=false
 
# 接口请求次数一分钟限制是否开启 true|false
aj.captcha.req-frequency-limit-enable=false
# 验证失败5次,get接口锁定
aj.captcha.req-get-lock-limit=5
# 验证失败后,锁定时间间隔,s
aj.captcha.req-get-lock-seconds=360
# get接口一分钟内请求数限制
aj.captcha.req-get-minute-limit=30
# check接口一分钟内请求数限制
aj.captcha.req-check-minute-limit=30
# verify接口一分钟内请求数限制(暂用不上,可后台直接调用captchaService)
#aj.captcha.req-verify-minute-limit=30

或者

# 滑块验证码
aj:
   captcha:
      # 缓存类型
      cache-type: redis
      # blockPuzzle 滑块 clickWord 文字点选  default默认两者都实例化
      type: blockPuzzle
      # 右下角显示字
      water-mark: ruoyi.vip
      # 校验滑动拼图允许误差偏移量(默认5像素)
      slip-offset: 5
      # aes加密坐标开启或者禁用(true|false)
      aes-status: true
      # 滑动干扰项(0/1/2)
      interference-options: 2

这只是基础配置,可以参考aj-captcha详细配置选择自己想用的参数。

在SecurityConfig中设置aj-captcha匿名访问权限
在 SecurityConfig.java 文件中configure方法下的httpSecurity添加如下语句:

.antMatchers("/captcha/get", "/captcha/check").anonymous()

修改后台实现代码
大家在修改代码时,切记不要按照文档官方文档直接覆盖,建议使用文本比较工具将代码进行比对后只更新相关内容,这也是开发人员的良好习惯!!!!

修改SysLoginService.java
抽离改动点比较麻烦,大家自行去比对吧。主要改动login方法。

import javax.annotation.Resource;
 
import com.anji.captcha.model.common.ResponseModel;
import com.anji.captcha.model.vo.CaptchaVO;
import com.anji.captcha.service.CaptchaService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Lazy;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.BadCredentialsException;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.stereotype.Component;
import com.ruoyi.common.constant.Constants;
import com.ruoyi.common.core.domain.entity.SysUser;
import com.ruoyi.common.core.domain.model.LoginUser;
import com.ruoyi.common.core.redis.RedisCache;
import com.ruoyi.common.exception.ServiceException;
import com.ruoyi.common.exception.user.CaptchaException;
import com.ruoyi.common.exception.user.CaptchaExpireException;
import com.ruoyi.common.exception.user.UserPasswordNotMatchException;
import com.ruoyi.common.utils.DateUtils;
import com.ruoyi.common.utils.MessageUtils;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.common.utils.ServletUtils;
import com.ruoyi.common.utils.ip.IpUtils;
import com.ruoyi.framework.manager.AsyncManager;
import com.ruoyi.framework.manager.factory.AsyncFactory;
import com.ruoyi.system.service.ISysConfigService;
import com.ruoyi.system.service.ISysUserService;
 
/**
 * 登录校验方法
 *
 * @author ruoyi
 */
@Component
public class SysLoginService
{
    @Autowired
    private TokenService tokenService;
 
    @Resource
    private AuthenticationManager authenticationManager;
 
    @Autowired
    private RedisCache redisCache;
 
 
    @Autowired
    private ISysUserService userService;
 
    @Autowired
    private ISysConfigService configService;
 
    @Autowired
    @Lazy
    private CaptchaService captchaService;
    /**
     * 登录验证
     *
     * @param username 用户名
     * @param password 密码
     * @param code 验证码
     * @param uuid 唯一标识
     * @return 结果
     */
    public String login(String username, String password, String code, String uuid)
    {
        CaptchaVO captchaVO = new CaptchaVO();
        captchaVO.setCaptchaVerification(code);
        ResponseModel response = captchaService.verification(captchaVO);
        if (!response.isSuccess())
        {
            AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL,
                    MessageUtils.message("user.jcaptcha.error")));
            throw new CaptchaException();
        }
        /*boolean captchaOnOff = configService.selectCaptchaOnOff();
        // 验证码开关
        if (captchaOnOff)
        {
            validateCaptcha(username, code, uuid);
        }*/
        // 用户验证
        Authentication authentication = null;
        try
        {
            // 该方法会去调用UserDetailsServiceImpl.loadUserByUsername
            authentication = authenticationManager
                    .authenticate(new UsernamePasswordAuthenticationToken(username, password));
        }
        catch (Exception e)
        {
            if (e instanceof BadCredentialsException)
            {
                AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.password.not.match")));
                throw new UserPasswordNotMatchException();
            }
            else
            {
                AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, e.getMessage()));
                throw new ServiceException(e.getMessage());
            }
        }
        AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_SUCCESS, MessageUtils.message("user.login.success")));
        LoginUser loginUser = (LoginUser) authentication.getPrincipal();
        recordLoginInfo(loginUser.getUserId());
        // 生成token
        return tokenService.createToken(loginUser);
    }
 
    /**
     * 校验验证码
     *
     * @param username 用户名
     * @param code 验证码
     * @param uuid 唯一标识
     * @return 结果
     */
   /* public void validateCaptcha(String username, String code, String uuid)
    {
        String verifyKey = Constants.CAPTCHA_CODE_KEY + StringUtils.nvl(uuid, "");
        String captcha = redisCache.getCacheObject(verifyKey);
        redisCache.deleteObject(verifyKey);
        if (captcha == null)
        {
            AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.jcaptcha.expire")));
            throw new CaptchaExpireException();
        }
        if (!code.equalsIgnoreCase(captcha))
        {
            AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.jcaptcha.error")));
            throw new CaptchaException();
        }
    }
*/
    /**
     * 记录登录信息
     *
     * @param userId 用户ID
     */
    public void recordLoginInfo(Long userId)
    {
        SysUser sysUser = new SysUser();
        sysUser.setUserId(userId);
        sysUser.setLoginIp(IpUtils.getIpAddr(ServletUtils.getRequest()));
        sysUser.setLoginDate(DateUtils.getNowDate());
        userService.updateUserProfile(sysUser);
    }
}

新增 CaptchaRedisService.java

import java.util.concurrent.TimeUnit;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import com.anji.captcha.service.CaptchaCacheService;
 
/**
 * 自定义redis验证码缓存实现类
 * 
 * @author ruoyi
 */
public class CaptchaRedisService implements CaptchaCacheService
{
    @Autowired
    private StringRedisTemplate stringRedisTemplate;
 
    @Override
    public void set(String key, String value, long expiresInSeconds)
    {
        stringRedisTemplate.opsForValue().set(key, value, expiresInSeconds, TimeUnit.SECONDS);
    }
 
    @Override
    public boolean exists(String key)
    {
        return stringRedisTemplate.hasKey(key);
    }
 
    @Override
    public void delete(String key)
    {
        stringRedisTemplate.delete(key);
    }
 
    @Override
    public String get(String key)
    {
        return stringRedisTemplate.opsForValue().get(key);
    }
 
    @Override
    public Long increment(String key, long val)
    {
        return stringRedisTemplate.opsForValue().increment(key, val);
    }
 
    @Override
    public String type()
    {
        return "redis";
    }
}

6.资源导入
将aj-captcha 官方提供的demo中的images包整体引入到resources包下。
文章的最上边提供了下载地址,可自行下载。
至此,后端全部修改完毕。

7.修改前端
使用beyondcompare比较一下改动内容。

package.json
dependencies 增加

"crypto-js": "^4.1.1",

\src\views\login.vue
删除原来的验证码部分,增加滑块验证码相关代码

<template>
  <div class="login">
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form">
      <h3 class="title">若依后台管理系统</h3>
      <el-form-item prop="username">
        <el-input
          v-model="loginForm.username"
          type="text"
          auto-complete="off"
          placeholder="账号"
        >
          <svg-icon slot="prefix" icon-class="user" class="el-input__icon input-icon" />
        </el-input>
      </el-form-item>
      <el-form-item prop="password">
        <el-input
          v-model="loginForm.password"
          type="password"
          auto-complete="off"
          placeholder="密码"
          @keyup.enter.native="handleLogin"
        >
          <svg-icon slot="prefix" icon-class="password" class="el-input__icon input-icon" />
        </el-input>
      </el-form-item>
      <Verify
        @success="capctchaCheckSuccess"
        :mode="'pop'"
        :captchaType="'blockPuzzle'"
        :imgSize="{ width: '330px', height: '155px' }"
        ref="verify"
      ></Verify>
      <el-checkbox v-model="loginForm.rememberMe" style="margin:0px 0px 25px 0px;">记住密码</el-checkbox>
      <el-form-item style="width:100%;">
        <el-button
          :loading="loading"
          size="medium"
          type="primary"
          style="width:100%;"
          @click.native.prevent="handleLogin"
        >
          <span v-if="!loading">登 录</span>
          <span v-else>登 录 中...</span>
        </el-button>
        <div style="float: right;" v-if="register">
          <router-link class="link-type" :to="'/register'">立即注册</router-link>
        </div>
      </el-form-item>
    </el-form>
    <!--  底部  -->
    <div class="el-login-footer">
      <span>Copyright © 2018-2022 ruoyi.vip All Rights Reserved.</span>
    </div>
  </div>
</template>
 
<script>
import Cookies from "js-cookie";
import { encrypt, decrypt } from '@/utils/jsencrypt'
import Verify from "@/components/Verifition/Verify";
 
export default {
  components: { Verify },
  name: "Login",
  data() {
    return {
      loginForm: {
        username: "admin",
        password: "admin123",
        rememberMe: false,
        code: "",
      },
      loginRules: {
        username: [
          { required: true, trigger: "blur", message: "请输入您的账号" }
        ],
        password: [
          { required: true, trigger: "blur", message: "请输入您的密码" }
        ],
      },
      loading: false,
      // 注册开关
      register: false,
      redirect: undefined
    };
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect;
      },
      immediate: true
    }
  },
  created() {
    this.getCookie();
  },
  methods: {
 
    getCookie() {
      const username = Cookies.get("username");
      const password = Cookies.get("password");
      const rememberMe = Cookies.get('rememberMe')
      this.loginForm = {
        username: username === undefined ? this.loginForm.username : username,
        password: password === undefined ? this.loginForm.password : decrypt(password),
        rememberMe: rememberMe === undefined ? false : Boolean(rememberMe)
      };
    },
    capctchaCheckSuccess(params) {
      this.loginForm.code = params.captchaVerification;
      this.loading = true;
      if (this.loginForm.rememberMe) {
        Cookies.set("username", this.loginForm.username, { expires: 30 });
        Cookies.set("password", encrypt(this.loginForm.password), { expires: 30, });
        Cookies.set("rememberMe", this.loginForm.rememberMe, { expires: 30 });
      } else {
        Cookies.remove("username");
        Cookies.remove("password");
        Cookies.remove("rememberMe");
      }
      this.$store.dispatch("Login", this.loginForm).then(() => {
          this.$router.push({ path: this.redirect || "/" }).catch(() => {});
        }).catch(() => {
          this.loading = false;
        });
    },
    handleLogin() {
      this.$refs.loginForm.validate((valid) => {
        if (valid) {
          this.$refs.verify.show();
        }
      });
    }
  }
};
</script>
 
<style rel="stylesheet/scss" lang="scss">
.login {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  background-image: url("../assets/images/login-background.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: 38px;
    input {
      height: 38px;
    }
  }
  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 2px;
  }
}
.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}
.login-code {
  width: 33%;
  height: 38px;
  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: 38px;
}
</style>

其他资源
将 “集成aj-captcha实现滑块验证码\ruoyi-ui\src\“ 目录下assets、components两个目录直接复制到项目中。
这就够了。api目录下文件用不到。

8.启动
1.建议先启动后端,再启动前端。
2.前后端都增加了依赖,后端需要更新maven依赖,前端更新crypto-js (npm install --save crypto-js)

最终效果如下:

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