package?com.edu.swu.controller;

import?com.google.code.kaptcha.Constants;
import?com.google.code.kaptcha.Producer;
import?org.slf4j.Logger;
import?org.slf4j.LoggerFactory;
import?org.springframework.beans.factory.annotation.Autowired;
import?org.springframework.stereotype.Controller;
import?org.springframework.web.bind.annotation.RequestMapping;
import?org.springframework.web.servlet.ModelAndView;

import?javax.imageio.ImageIO;
import?javax.servlet.ServletOutputStream;
import?javax.servlet.http.HttpServletRequest;
import?javax.servlet.http.HttpServletResponse;
import?javax.servlet.http.HttpSession;
import?java.awt.image.BufferedImage;

/**
?*?@Description?//TODO：
?*?@Author?shaohjz
?*?@Date?2019/2/25
?**/
@Controller
@RequestMapping（value?=?“/captcha“）
public?class?captchaController?{
????/**
?????*?驗證碼相關的接口
?????*
?????*?@author?gaowei.cheng
?????*/

????private?static?Logger?log?=?LoggerFactory.getLogger（captchaController.class）;

????@Autowired
????private?Producer?captchaProducer;

????@RequestMapping（value?=?“/getCaptchaImage“）
????public?ModelAndView?getCaptchaImage（HttpServletRequest?request?HttpServletResponse?response）?throws?Exception?{
????????HttpSession?session?=?request.getSession（）;
????????String?code?=?（String）?session.getAttribute（Constants.KAPTCHA_SESSION_KEY）;
????????System.out.println（“******************驗證碼是:?“?+?code?+?“******************“）;

????????response.setDateHeader（“Expires“?0）;

????????//?Set?standard?HTTP/1.1?no-cache?headers.
????????response.setHeader（“Cache-Control“?“no-store?no-cache?must-revalidate“）;

????????//?Set?IE?extended?HTTP/1.1?no-cache?headers?（use?addHeader）.
????????response.addHeader（“Cache-Control“?“post-check=0?pre-check=0“）;

????????//?Set?standard?HTTP/1.0?no-cache?header.
????????response.setHeader（“Pragma“?“no-cache“）;

????????//?return?a?jpeg
????????response.setContentType（“image/jpeg“）;

????????//?create?the?text?for?the?image
????????String?capText?=?captchaProducer.createText（）;

????????//?store?the?text?in?the?session
????????session.setAttribute（Constants.KAPTCHA_SESSION_KEY?capText）;

????????//?create?the?image?with?the?text
????????BufferedImage?bi?=?captchaProducer.createImage（capText）;
????????ServletOutputStream?out?=?response.getOutputStream（）;

????????//?write?the?data?out
????????ImageIO.write（bi?“jpg“?out）;
????????try?{
????????????out.flush（）;
????????}?finally?{
????????????out.close（）;
????????}
????????return?null;
????}

}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2020-03-09?15:26??IdeaProjects\
?????目錄???????????0??2020-03-08?14:42??IdeaProjects\.git\
?????文件?????????130??2019-09-21?15:34??IdeaProjects\.git\config
?????文件??????????73??2019-09-21?15:34??IdeaProjects\.git\description
?????文件??????????23??2019-09-21?15:34??IdeaProjects\.git\HEAD
?????目錄???????????0??2020-03-07?22:27??IdeaProjects\.git\hooks\
?????文件?????????478??2019-09-21?15:34??IdeaProjects\.git\hooks\applypatch-msg.sample
?????文件?????????896??2019-09-21?15:34??IdeaProjects\.git\hooks\commit-msg.sample
?????文件????????3327??2019-09-21?15:34??IdeaProjects\.git\hooks\fsmonitor-watchman.sample
?????文件?????????189??2019-09-21?15:34??IdeaProjects\.git\hooks\post-update.sample
?????文件?????????424??2019-09-21?15:34??IdeaProjects\.git\hooks\pre-applypatch.sample
?????文件????????1638??2019-09-21?15:34??IdeaProjects\.git\hooks\pre-commit.sample
?????文件????????1348??2019-09-21?15:34??IdeaProjects\.git\hooks\pre-push.sample
?????文件????????4898??2019-09-21?15:34??IdeaProjects\.git\hooks\pre-rebase.sample
?????文件?????????544??2019-09-21?15:34??IdeaProjects\.git\hooks\pre-receive.sample
?????文件????????1492??2019-09-21?15:34??IdeaProjects\.git\hooks\prepare-commit-msg.sample
?????文件????????3610??2019-09-21?15:34??IdeaProjects\.git\hooks\update.sample
?????目錄???????????0??2019-09-23?21:06??IdeaProjects\.git\info\
?????目錄???????????0??2020-03-07?22:27??IdeaProjects\.git\objects\
?????目錄???????????0??2019-09-23?21:06??IdeaProjects\.git\objects\info\
?????目錄???????????0??2019-09-23?21:06??IdeaProjects\.git\objects\pack\
?????目錄???????????0??2020-03-07?22:27??IdeaProjects\.git\refs\
?????目錄???????????0??2019-09-23?21:06??IdeaProjects\.git\refs\heads\
?????目錄???????????0??2019-09-23?21:06??IdeaProjects\.git\refs\tags\
?????目錄???????????0??2020-03-08?15:04??IdeaProjects\.idea\
?????文件???????????8??2020-03-06?17:09??IdeaProjects\.idea\.name
?????文件?????????541??2020-03-08?14:33??IdeaProjects\.idea\compiler.xml
?????文件?????????177??2020-03-06?17:18??IdeaProjects\.idea\encodings.xml
?????文件?????????656??2020-03-06?17:18??IdeaProjects\.idea\misc.xml
?????文件?????????172??2020-03-06?17:18??IdeaProjects\.idea\vcs.xml
?????文件???????33314??2020-03-08?15:04??IdeaProjects\.idea\workspace.xml
............此處省略601個文件信息