java - springBoot+spring security+Kaptcha如何实现图片验证码-PHP Chinese Network Q&A

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java - springBoot+spring security+Kaptcha如何实现图片验证码

阿神 2017-04-18 10:23:20

1064

@Component public class MyAuthenticationProvider implements AuthenticationProvider { @Autowired private CustomUserDetailsService userService; @Override public Authentication authenticate(Authentication authentication) throws AuthenticationException { String username = authentication.getName(); String password = (String) authentication.getCredentials(); CustomUserDetails user = (CustomUserDetails) userService.loadUserByUsername(username); if(user == null){ throw new BadCredentialsException("用户不存在"); } if (!password.equals(user.getPassword())) { throw new BadCredentialsException("错误的密码"); } Collection authorities = user.getAuthorities(); return new UsernamePasswordAuthenticationToken(user, password, authorities); } @Override public boolean supports(Class arg0) { return true; } }

在springBoot项目中有这个类验证用户名和密码。现在想添加图片验证码（Kaptcha）该如何实现？？？

阿神

闭关修行中......

reply all (1)

迷茫2017-04-18 10:25:20 1 floor

Rewrite this class and add verification code verification to it;
Here is another example of Shiro’s method of adding verification code

public class CaptchaFormAuthenticationFilter extends FormAuthenticationFilter{

private static final Logger LOG = LoggerFactory.getLogger(CaptchaFormAuthenticationFilter.class); private static final String DEFAULT_CAPTCHA_PARAM = "captcha"; private String captchaParam = DEFAULT_CAPTCHA_PARAM; public String getCaptchaParam() { return captchaParam; } public void setCaptchaParam(String captchaParam) { this.captchaParam = captchaParam; } protected String getCaptcha(ServletRequest request){ return WebUtils.getCleanParam(request, captchaParam); } public CaptchaFormAuthenticationFilter() { } @Override protected boolean executeLogin(ServletRequest request, ServletResponse response) throws Exception { CaptchaUsernamePasswordToken token = (CaptchaUsernamePasswordToken) createToken(request, response); boolean isValidate = doCaptchaValidate((HttpServletRequest) request,token); if(isValidate){ Subject subject = getSubject(request, response); subject.login(token); return super.executeLogin(request, response); } return false; } protected boolean doCaptchaValidate(HttpServletRequest request,CaptchaUsernamePasswordToken token){ String captcha = (String) request.getSession().getAttribute(DEFAULT_CAPTCHA_PARAM); if (captcha != null && !captcha.equalsIgnoreCase(token.getCaptcha())) { return false; } return true; } /** * 创建口令 */ @Override protected AuthenticationToken createToken(ServletRequest request, ServletResponse response) { String captcha = getCaptcha(request); String username = getUsername(request); String password = getPassword(request); boolean rememberMe = isRememberMe(request); String host = getHost(request); return new CaptchaUsernamePasswordToken(username, password.toCharArray(), rememberMe, host, captcha) ; }

}

public class CaptchaUsernamePasswordToken extends UsernamePasswordToken {

private static final long serialVersionUID = 8446567829844028162L; //验证码字符串 private String captcha; public CaptchaUsernamePasswordToken(String username, char[] password, boolean rememberMe, String host, String captcha) { super(username, password, rememberMe, host); this.captcha = captcha; } public String getCaptcha() { return captcha; } public void setCaptcha(String captcha) { this.captcha = captcha; }

}