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package servlet;

import util.VerifyCodeUtils;

import javax.imageio.ImageIO;

import javax.servlet.ServletException;

import javax.servlet.annotation.WebServlet;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import javax.servlet.http.HttpSession;

import java.awt.image.BufferedImage;

import java.io.IOException;

@WebServlet("/codeServlet")

public class CodeServlet extends HttpServlet {

@Override

protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

String gen_code = VerifyCodeUtils.generateVerifyCode(4);

BufferedImage img = VerifyCodeUtils.createCode(150, 40, gen_code);

ImageIO.write(img,"jpg",resp.getOutputStream());

HttpSession session = req.getSession();

session.setAttribute("vcode",gen_code);

}

@Override

protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

this.doGet(req, resp);

}

}