/** @Description: 用户端登录 @Created Time: 2013-3-29 上午11:29:36 @Author lys */
public void teacherLogin() {
try {
ServiceResult result = new ServiceResult(false);
String captchaID = request.getSession().getId();
String challengeResponse =
StringUtils.upperCase(request.getParameter(JCaptchaEngine.CAPTCHA_INPUT_NAME));
if (StringUtils.isEmpty(challengeResponse)
|| captchaService.validateResponseForID(captchaID, challengeResponse) == false) {
result.setMessage("验证码错误");
ajaxJson(result.toJSON());
return;
}
// 根据用户名和密码判断是否允许登录
Teacher loginTeacher = teacherService.login(userCode, MD5Util.getMD5(userPwd));
if (null == loginTeacher) {
result.setMessage("用户名或密码错误!!");
} else {
setSession(Teacher.LOGIN_TEACHERID, loginTeacher.getTeacherId());
setSession(Teacher.LOGIN_TEACHERName, loginTeacher.getTeacherName());
setSession(LoginType.LOGINTYPE, LoginType.TEACHER);
result.setIsSuccess(true);
}
String ajaxString = result.toJSON();
ajaxJson(ajaxString);
} catch (Exception e) {
e.printStackTrace();
}
}
/** @Description: 学生登陆 @Created Time: 2013-5-9 下午4:08:03 @Author lys */
public void studentLogin() {
try {
ServiceResult result = new ServiceResult(false);
String captchaID = request.getSession().getId();
String challengeResponse =
StringUtils.upperCase(request.getParameter(JCaptchaEngine.CAPTCHA_INPUT_NAME));
if (StringUtils.isEmpty(challengeResponse)
|| captchaService.validateResponseForID(captchaID, challengeResponse) == false) {
result.setMessage("验证码错误");
ajaxJson(result.toJSON());
return;
}
// 根据用户名和密码判断是否允许登录
Student loginStudent = studentService.login(userCode, MD5Util.getMD5(userPwd));
if (null == loginStudent) {
result.setMessage("用户名或密码错误或未注册激活!!");
} else {
setSession(Student.LOGIN_ID, loginStudent.getStudentId());
setSession(Student.LOGIN_NAME, loginStudent.getStudentName());
setSession(LoginType.LOGINTYPE, LoginType.STUDENT);
result.addData("studentId", loginStudent.getStudentId());
result.addData("studentName", loginStudent.getStudentName());
result.setIsSuccess(true);
}
String ajaxString = result.toJSON();
ajaxJson(ajaxString);
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 根据HttpServletRequest校验验证码
*
* @param parameterName 参数名称
* @return 是否验证通过
*/
public static boolean validateCaptchaByRequest(HttpServletRequest request, String parameterName) {
String captchaID = request.getSession().getId();
String challengeResponse = StringUtils.upperCase(request.getParameter(parameterName));
if (StringUtils.isEmpty(captchaID) || StringUtils.isEmpty(challengeResponse)) {
return false;
}
CaptchaService captchaService = (CaptchaService) SpringUtil.getBean(CAPTCHA_SERVICE_BEAN_NAME);
try {
if (captchaService.validateResponseForID(captchaID, challengeResponse)) {
return true;
}
} catch (Exception e) {
}
return false;
}
protected boolean validateCaptchaChallenge(final HttpServletRequest request) {
try {
String captchaID = request.getSession().getId();
String challengeResponse = request.getParameter(captchaParamterName);
return captchaService.validateResponseForID(captchaID, challengeResponse);
} catch (Exception e) {
return false;
}
}
private boolean validateCaptchaChallenge(final HttpServletRequest request) {
try {
String captchaID = request.getSession().getId();
String challengeResponse = request.getParameter(captchaParamterName);
if (autoPassValue != null && autoPassValue.equals(challengeResponse)) {
return true;
}
return captchaService.validateResponseForID(captchaID, challengeResponse);
} catch (CaptchaServiceException e) {
logger.error(e.getMessage(), e);
return false;
}
}
private void genernateCaptchaImage(
final HttpServletRequest request, final HttpServletResponse response) throws IOException {
response.setHeader("Cache-Control", "no-store");
response.setHeader("Pragma", "no-cache");
response.setDateHeader("Expires", 0);
response.setContentType("image/jpeg");
ServletOutputStream out = response.getOutputStream();
try {
String captchaId = request.getSession(true).getId();
BufferedImage challenge =
(BufferedImage) captchaService.getChallengeForID(captchaId, request.getLocale());
ImageIO.write(challenge, "jpg", out);
out.flush();
} catch (CaptchaServiceException e) {
logger.error(e.getMessage(), e);
} finally {
out.close();
}
}
protected void genernateCaptchaImage(
final HttpServletRequest request, final HttpServletResponse response) {
ServletUtils.setDisableCacheHeader(response);
response.setContentType("image/png");
ServletOutputStream out = null;
try {
out = response.getOutputStream();
String captchaId = request.getSession(true).getId();
BufferedImage challenge =
(BufferedImage) captchaService.getChallengeForID(captchaId, request.getLocale());
// String writerNames[] = ImageIO.getWriterFormatNames();
ImageIO.write(challenge, "png", out);
out.flush();
} catch (IOException | CaptchaServiceException e) {
log.error("生成验证码出错", e);
} finally {
try {
out.close();
} catch (IOException e) {
log.error("生成验证码出错", e);
}
}
}