验证码实现

liuhaonan

2022-04-25 763789a6797ffe6ab09b4e2a35ed4a8d4a3b29c5

 ximon-admin/src/main/java/com/sandu/ximon/admin/security/authcode/VerifyCodeController.java

@@ -3,6 +3,7 @@
import cn.hutool.core.lang.Snowflake;
import cn.hutool.core.util.StrUtil;
import com.baomidou.mybatisplus.core.toolkit.StringUtils;
import com.sandu.common.security.annotation.AnonymousAccess;
import lombok.AllArgsConstructor;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
@@ -33,6 +34,8 @@

    private final Snowflake snowflake;


    @AnonymousAccess
    @RequestMapping("/getImg")
    @ResponseBody
    public Map getVerifiCode(HttpServletRequest request, HttpServletResponse response) throws IOException {
@@ -44,20 +47,11 @@
        long key = snowflake.nextId();
        ImageVerificationCode ivc = new ImageVerificationCode();     //用我们的验证码类，生成验证码类对象
        BufferedImage image = ivc.getImage();  //获取验证码

//        ByteArrayOutputStream baos = new ByteArrayOutputStream();//io流
//        ImageIO.write(image, "JPEG", baos);//写入流中
//        byte[] bytes = baos.toByteArray();//转换成字节
//        BASE64Encoder encoder = new BASE64Encoder();
//        String png_base64 = encoder.encodeBuffer(bytes).trim();//转换成base64串
//        png_base64 = png_base64.replaceAll("\n", "").replaceAll("\r", "");//删除 \r\n

        //        ImageIO.write(bufferedImage, "png", new File("D:/qrcode1.png"));
//        System.out.println("值为："+"data:image/jpg;base64,"+png_base64);
        request.getSession().setAttribute(key+"", ivc.getText()); //将验证码的文本存在session中
        request.getSession().setAttribute(key+"", MD5Util.md5(ivc.getText().toUpperCase())); //将验证码的文本存在session中
//        ImageVerificationCode.output(image, response.getOutputStream());//将验证码图片响应给客户端
        String img = getBufferedImageToBase64(image, "JPEG");
        String session_vcode = (String) request.getSession().getAttribute(key+"");

        Map map = new HashMap();
//        map.put("img", "data:image/jpg;base64,"+png_base64);
        map.put("img", img);
@@ -66,11 +60,12 @@
        return map;
    }

    @AnonymousAccess
    @RequestMapping("/Login_authentication/{key}")
    @ResponseBody
    public String Login_authentication(HttpServletRequest request, HttpServletResponse response,@PathVariable String key) throws IOException, ServletException {
        request.setCharacterEncoding("utf-8");
//        String vcode = (String)map.get("session_vcode");
//        String vcode = (String)map.get("session_vcode");  r6mt
//        if(vcode.isEmpty()||vcode==null){
//            return "验证码不能为空";
//        }