package com.ruoyi.project.common;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.util.concurrent.TimeUnit;
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import javax.servlet.http.HttpServletResponse;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.RestController;
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import com.ruoyi.common.constant.Constants;
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import com.ruoyi.common.utils.IdUtils;
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import com.ruoyi.common.utils.VerifyCodeUtils;
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import com.ruoyi.common.utils.sign.Base64;
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import com.ruoyi.framework.redis.RedisCache;
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import com.ruoyi.framework.web.domain.AjaxResult;
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/**
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* 验证码操作处理
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*
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* @author ruoyi
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*/
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@RestController
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public class CaptchaController
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{
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@Autowired
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private RedisCache redisCache;
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/**
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* 生成验证码
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*/
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@GetMapping("/captchaImage")
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public AjaxResult getCode(HttpServletResponse response) throws IOException
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{
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// 生成随机字串
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String verifyCode = VerifyCodeUtils.generateVerifyCode(4);
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// 唯一标识
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String uuid = IdUtils.simpleUUID();
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String verifyKey = Constants.CAPTCHA_CODE_KEY + uuid;
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redisCache.setCacheObject(verifyKey, verifyCode, Constants.CAPTCHA_EXPIRATION, TimeUnit.MINUTES);
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// 生成图片
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int w = 111, h = 36;
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ByteArrayOutputStream stream = new ByteArrayOutputStream();
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VerifyCodeUtils.outputImage(w, h, stream, verifyCode);
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try
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{
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AjaxResult ajax = AjaxResult.success();
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ajax.put("uuid", uuid);
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ajax.put("img", Base64.encode(stream.toByteArray()));
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return ajax;
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}
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catch (Exception e)
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{
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e.printStackTrace();
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return AjaxResult.error(e.getMessage());
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}
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finally
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{
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stream.close();
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}
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}
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}
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