springboot利用hutool快速生成验证码

生成验证码

public class VerificationCodeUtil {

    public static VerificationCode getVerification() {
        LineCaptcha captcha = CaptchaUtil.createLineCaptcha(70, 35, 4, 30);
        String key = IdUtil.get32Uuid();
        VerificationCode verificationCode= new VerificationCode();
        verificationCode.setCode(captcha.getCode());
        verificationCode.setKey(key);
        verificationCode.setBase64Img(captcha.getImageBase64());
        return verificationCode;
    }
}

存储验证码的key到redis   将图片的base64返给前端

@ApiOperation(value = "获取验证码", notes = "获取验证码")
@GetMapping("/getVerificationCode")
public CommonResult getVerificationCode() {
    VerificationCode verificationCode = VerificationCodeUtil.getVerification();
    redisService.set(RedisKeyConstant.VERIFICATIONCODE_KEY + ":" + verificationCode.getKey(), verificationCode.getCode(), 60);
    verificationCode.setCode(null);
    return CommonResult.success(verificationCode);
}