若依框架的验证换成美观的EasyCaptcha验证码

项目场景：

提示：这里简述项目相关背景：

修改若依框架的验证码

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问题描述

提示：这里描述项目中遇到的问题：

若依框本身验证码比较丑，换成EasyCaptcha验证码

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解决方案：

首先在pom文件中添加依赖

<!-- 自己加的验证码EasyCaptcha依赖  -->
		<dependency>
            <groupId>com.github.whvcse</groupId>
            <artifactId>easy-captcha</artifactId>
            <version>1.6.2</version>
        </dependency>

然后在CaptchaController类更改

package com.example.admin.common;

import com.example.common.constant.Constants;
import com.example.common.core.domain.AjaxResult;
import com.example.common.core.redis.RedisCache;
import com.example.common.utils.VerifyCodeUtils;
import com.example.common.utils.sign.Base64;
import com.example.common.utils.uuid.IdUtils;
import com.example.web.domain.WebAssInfo;
import com.example.web.domain.WebExpertsScore;
import com.example.web.service.IWebAssInfoService;
import com.example.web.service.IWebExpertsScoreService;
import com.wf.captcha.ArithmeticCaptcha;
import com.wf.captcha.ChineseCaptcha;
import com.wf.captcha.SpecCaptcha;
import com.wf.captcha.base.Captcha;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletResponse;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.List;
import java.util.concurrent.TimeUnit;

/**
 * 验证码操作处理
 */
@RestController
public class CaptchaController {
    @Autowired
    private RedisCache redisCache;
    @Autowired
    private IWebExpertsScoreService webExpertsScoreService;
    @Autowired
    private IWebAssInfoService webAssInfoService;
    // 验证码类型，从配置文件获取
    @Value("${review.captchaType}")
    private String captchaType;
    /**
     * 生成验证码
     */
    @CrossOrigin
    @GetMapping({"/captchaImage"})
    public AjaxResult getCode(HttpServletResponse response) throws IOException {
        AjaxResult ajax = AjaxResult.success();
        // 保存验证码信息
        String uuid = IdUtils.simpleUUID();
        String verifyKey = "captcha_codes:"   uuid;
        //以下是自己新加的代码——————————————————————————————————————————————————————————
        //验证码EasyCaptcha工具
        Captcha captcha = null;
        if ("math".equals(captchaType)) {//math 算术验证
            //创建算术验证码
            captcha = new ArithmeticCaptcha(115, 42);
        } else if ("chinese".equals(captchaType)) {//chinese 中文验证
            //中文验证
            captcha = new ChineseCaptcha(115, 42);
        } else if ("char".equals(captchaType)) {//char 字符验证
            //创建字符验证码
            captcha = new SpecCaptcha(115,42);
        }
        //得到验证码的值
        String code = captcha.text();
        //存入redis
        redisCache.setCacheObject(verifyKey, code, Constants.CAPTCHA_EXPIRATION, TimeUnit.MINUTES);
        ajax.put("uuid", uuid);
        ajax.put("img", captcha.toBase64());  //获得图片的base64编码
        return ajax;
    }
}

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