1：GIF 格式
/**
* 获取验证码（Gif版本）
* @param response
*/
@RequestMapping(value="getGifCode",method=RequestMethod.GET)
public void getGifCode(HttpServletResponse response,HttpServletRequest request){
try {
response.setHeader("Pragma", "No-cache");
response.setHeader("Cache-Control", "no-cache");
response.setDateHeader("Expires", 0);
response.setContentType("image/gif");
/**
* gif格式动画验证码
* 宽，高，位数。
*/
Captcha captcha = new GifCaptcha(146,33,4);
//输出
captcha.out(response.getOutputStream());
HttpSession session = request.getSession(true);
//存入Session
session.setAttribute("_code",captcha.text().toLowerCase());
} catch (Exception e) {
LoggerUtils.fmtError(getClass(),e, "获取验证码异常：%s",e.getMessage());
}
}
2：jpg格式验证码
/**
* 获取验证码（jpg版本）
* @param response
*/
@RequestMapping(value="getJPGCode",method=RequestMethod.GET)
public void getJPGCode(HttpServletResponse response,HttpServletRequest request){
try {
response.setHeader("Pragma", "No-cache");
response.setHeader("Cache-Control", "no-cache");
response.setDateHeader("Expires", 0);
response.setContentType("image/jpg");
/**
* jgp格式验证码
* 宽，高，位数。
*/
Captcha captcha = new SpecCaptcha(146,33,4);
//输出
captcha.out(response.getOutputStream());
HttpSession session = request.getSession(true);
//存入Session
session.setAttribute("_code",captcha.text().toLowerCase());
} catch (Exception e) {
LoggerUtils.fmtError(getClass(),e, "获取验证码异常：%s",e.getMessage());
}
}
