package com.ks.push.controller.admin;

import com.google.code.kaptcha.Producer;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;

import javax.annotation.Resource;
import javax.imageio.ImageIO;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.awt.image.BufferedImage;

@Controller
@RequestMapping("admin/api")
public class CaptchaController {
    @Resource
    private Producer captchaProducer;

    @GetMapping("captcha.jpg")
    public void getCaptcha(HttpServletRequest request, HttpServletResponse response) throws Exception {
        response.setContentType("image/jpeg");
        String capText = captchaProducer.createText();
        request.getSession().setAttribute("captcha", capText);
        BufferedImage bi = captchaProducer.createImage(capText);
        ServletOutputStream out = response.getOutputStream();
        ImageIO.write(bi, "jpg", out);
        try {
            out.flush();
        } finally {
            out.close();
        }
    }
}