SpirngBoot集成验证码生成EasyCaptcha

Love The Way You Lie 2023-01-18 04:15 108阅读 0赞

#  POM依赖 #

<dependency>
                <groupId>com.github.whvcse</groupId>
                <artifactId>easy-captcha</artifactId>
                <version>1.6.2</version>
            </dependency>

# DEMO #

import javax.servlet.http.HttpServletResponse;
    import java.io.IOException;
    
    @RestController
    public class EasyCaptchaController {
    
        @RequestMapping("/png")
        public void png(HttpServletResponse response) throws IOException {
            // png类型
            SpecCaptcha captcha = new SpecCaptcha(130, 48);
            String text = captcha.text();// 获取验证码的字符
            char[] chars = captcha.textChar();// 获取验证码的字符数组
    
            System.out.println("验证码：" + text);
            System.out.println(chars);
            // 输出验证码
            captcha.out(response.getOutputStream());
        }
    
        @RequestMapping("/gif")
        public void gif(HttpServletResponse response) throws IOException {
    
            // 三个参数分别为宽、高、位数
            GifCaptcha gifCaptcha = new GifCaptcha(100, 48, 4);
            // 设置类型：字母数字混合
            gifCaptcha.setCharType(Captcha.TYPE_DEFAULT);
            //获取验证码
            String text = gifCaptcha.text();
            System.out.println("验证码为：" + text);
            // 输出验证码
            gifCaptcha.out(response.getOutputStream());
        }
    
        @RequestMapping("/zh")
        public void zh(HttpServletResponse response) throws IOException {
    
            // 中文类型
            ChineseCaptcha captcha = new ChineseCaptcha(130, 48);
            //获取验证码
            String text = captcha.text();
            System.out.println("验证码为：" + text);
            // 输出验证码
            captcha.out(response.getOutputStream());
        }
    
        @RequestMapping("/arithmetic")
        public void arithmetic(HttpServletResponse response) throws IOException {
            // 算术类型
            ArithmeticCaptcha captcha = new ArithmeticCaptcha(130, 48);
            captcha.setLen(3);  // 几位数运算，默认是两位
            captcha.getArithmeticString();  // 获取运算的公式：4-9+1=?
            String text = captcha.text();// 获取运算的结果：-4
    
            System.out.println("计算结果为："+text);
            // 输出验证码
            captcha.out(response.getOutputStream());
        }
    
    }

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