标签：article ice course 复杂 基础 key autowired option nal
http://www.itwendao.com/article/detail/165400.html
http://www.itdadao.com/articles/c15a754492p0.html
https://stackoverflow.com/questions/29783059/redirect-in-a-filter-with-spring-boot/29789630
在spring security的内置login处理是无法满足要求的，需要自己进行各种定制。这里介绍login中实现验证码的实现。
可以有三种方法可以实现验证码的功能
自定义一个filter，放在SpringSecurity过滤器之前，在用户登录的时候会先经过这个filter，然后在这个filter中实现对验证码进行验证的功能，这种方法不推荐，因为它已经脱离了SpringSecurity
自定义一个filter让它继承自UsernamePasswordAuthenticationFilter，然后重写attemptAuthentication方法在这个方法中实现验证码的功能，如果验证码错误就抛出一个继承自AuthenticationException的验证吗错误的异常比如（CaptchaException），然后这个异常就会被SpringSecurity捕获到并将异常信息返回到前台，这种实现起来比较简单。
@Override
public Authentication attemptAuthentication(HttpServletRequest request,
HttpServletResponse response) throws AuthenticationException {
String requestCaptcha = request.getParameter(this.getCaptchaFieldName());
String genCaptcha = (String)request.getSession().getAttribute("code");
logger.info("开始校验验证码，生成的验证码为："+genCaptcha+" ，输入的验证码为："+requestCaptcha);
if( !genCaptcha.equals(requestCaptcha)){
throw new CaptchaException(
this.messageSource.getMessage("AbstractUserDetailsAuthenticationProvider.badCaptcha",null,"Default",null));
}
return super.attemptAuthentication(request, response);
} 接着在配置文件中配置：
<bean id="loginFilter" class="com.zrhis.system.security.DefaultUsernamePasswordAuthenticationFilter">
<property name="authenticationManager" ref="authenticationManager"></property>
<property name="authenticationSuccessHandler">
<bean class="org.springframework.security.web.authentication.SavedRequestAwareAuthenticationSuccessHandler">
<property name="defaultTargetUrl" value="/index.jsp"></property>
</bean>
</property>
<property name="authenticationFailureHandler">
<bean class="org.springframework.security.web.authentication.SimpleUrlAuthenticationFailureHandler">
<property name="defaultFailureUrl" value="/login.jsp"></property>
</bean>
</property>
</bean> 最后在http中加入custom-filter配置，将这个filter放在SpringSecurity的FORM_LOGIN_FILTER之前.
<custom-filter ref="loginFilter" before="FORM_LOGIN_FILTER"/> 直接替换掉SpringSecurity的UsernamePasswordAuthenticationFilter，这种比较复杂，但是更为合理，也是我现在正在用的。
如果用这种方法那么http 中的auto-config就必须去掉，而form-login配置也必须去掉，因为这个不需要了，里面的属性都需要我们自行注入。
首先需要创建并配置一个login.jsp作为登录页面EntryPoint
<bean id="authenticationEntryPoint" class="org.springframework.security.web.authentication.LoginUrlAuthenticationEntryPoint">
<property name="loginFormUrl" value="/login.jsp" />
</bean> 然后在http中配置下
<sec:http access-decision-manager-ref="accessDecisionManager"
entry-point-ref="authenticationEntryPoint"> 然后我们来写CaptchaAuthenticationFilter，同样需要继承自UsernamePasswordAuthenticationFilter
public class CaptchaAuthenticationFilter extends UsernamePasswordAuthenticationFilter{
public static final String SPRING_SECURITY_FORM_CAPTCHA_KEY = "j_captcha";
public static final String SESSION_GENERATED_CAPTCHA_KEY = Constant.SESSION_GENERATED_CAPTCHA_KEY;
private String captchaParameter = SPRING_SECURITY_FORM_CAPTCHA_KEY;
public Authentication attemptAuthentication(HttpServletRequest request,
HttpServletResponse response) throws AuthenticationException {
String genCode = this.obtainGeneratedCaptcha(request);
String inputCode = this.obtainCaptcha(request);
if(genCode == null)
throw new CaptchaException(this.messages.getMessage("LoginAuthentication.captchaInvalid"));
if(!genCode.equalsIgnoreCase(inputCode)){
throw new CaptchaException(this.messages.getMessage("LoginAuthentication.captchaNotEquals"));
}
return super.attemptAuthentication(request, response);
}
protected String obtainCaptcha(HttpServletRequest request){
return request.getParameter(this.captchaParameter);
}
protected String obtainGeneratedCaptcha (HttpServletRequest request){
return (String)request.getSession().getAttribute(SESSION_GENERATED_CAPTCHA_KEY);
}
} 在配置文件中配置CaptchaAuthenticationFilter
<bean id="captchaAuthenticaionFilter" class="com.zrhis.system.security.CaptchaAuthenticationFilter">
<property name="authenticationManager" ref="authenticationManager" />
<property name="authenticationFailureHandler" ref="authenticationFailureHandler" />
<property name="authenticationSuccessHandler" ref="authenticationSuccessHandler" />
<property name="filterProcessesUrl" value="/login.do" />
</bean>
<bean id="authenticationSuccessHandler" class="com.zrhis.system.security.SimpleLoginSuccessHandler">
<property name="defaultTargetUrl" value="/WEB-INF/app.jsp"></property>
<property name="forwardToDestination" value="true"></property>
</bean>
<bean id="authenticationFailureHandler" class="org.springframework.security.web.authentication.SimpleUrlAuthenticationFailureHandler">
<property name="defaultFailureUrl" value="/login.jsp" />
</bean> 从配置文件中就可以看出来authenticationManager、authenticationFailureHandler、authenticationSuccessHandler、filterProcessesUrl等都需要我们自行注入了。
filterProcessesUrl定义的是登录验证的地址，默认的是j_spring_security_check这里我们改成login.do
authenticationSuccessHandler中的defaultTargetUrl定义的是登录成功后跳转到的页面
authenticationFailureHandler中的defaultTargetUrl定义的是登录失败后跳转到的页面
我们的首页app.jsp在/WEB-INF下所以需要使用服务器跳转，所以需要将forwardToDestination设为true，因为客户端跳转是不能直接访问WEB-INF下的内容的。
最后在http中将FORM_LOGIN_FILTER替换掉，最终http中完整的配置就变成了下面的内容
<sec:http access-decision-manager-ref="accessDecisionManager"
entry-point-ref="authenticationEntryPoint">
<sec:access-denied-handler ref="accessDeniedHandler"/>
<sec:session-management invalid-session-url="/login.jsp" />
<sec:custom-filter ref="filterSecurityInterceptor" before="FILTER_SECURITY_INTERCEPTOR"/>
<sec:custom-filter ref="captchaAuthenticaionFilter" position="FORM_LOGIN_FILTER"/>
</sec:http> custom-filter中before是在这个filter之前，after是之后，position是替换。
http://www.infocool.net/kb/WWW/201701/268891.html
在使用Spring Security框架过程中，经常会有这样的需求，即在登录验证时，附带增加额外的数据，如验证码、用户类型等。下面将介绍如何实现。
注：我的工程是在Spring Boot框架基础上的，使用xml方式配置的话请读者自行研究吧。
该类提供了获取用户登录时携带的额外信息的功能，默认实现WebAuthenticationDetails提供了remoteAddress与sessionId信息。开发者可以通过Authentication的getDetails()获取WebAuthenticationDetails。我们编写自定义类CustomWebAuthenticationDetails继承自WebAuthenticationDetails，添加我们关心的数据（以下是一个token字段）。
package com.cgs.courses.service;
import javax.servlet.http.HttpServletRequest;
import org.springframework.security.web.authentication.WebAuthenticationDetails;
public class CustomWebAuthenticationDetails extends WebAuthenticationDetails {
/**
*
*/
private static final long serialVersionUID = 6975601077710753878L;
private final String token;
public CustomWebAuthenticationDetails(HttpServletRequest request) {
super(request);
token = request.getParameter("token");
}
public String getToken() {
return token;
}
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append(super.toString()).append("; Token: ").append(this.getToken());
return sb.toString();
}
}
注：在登录页面，可将token字段放在form表单中，也可以直接加在url的参数中，进而把额外数据发送给后台。
该接口用于在Spring Security登录过程中对用户的登录信息的详细信息进行填充，默认实现是WebAuthenticationDetailsSource，生成上面的默认实现WebAuthenticationDetails。我们编写类实现AuthenticationDetailsSource，用于生成上面自定义的CustomWebAuthenticationDetails。
package com.cgs.courses.service;
import javax.servlet.http.HttpServletRequest;
import org.springframework.security.authentication.AuthenticationDetailsSource;
import org.springframework.security.web.authentication.WebAuthenticationDetails;
import org.springframework.stereotype.Component;
@Component
public class CustomAuthenticationDetailsSource implements AuthenticationDetailsSource<HttpServletRequest, WebAuthenticationDetails> {
@Override
public WebAuthenticationDetails buildDetails(HttpServletRequest context) {
return new CustomWebAuthenticationDetails(context);
}
}
只要看这一句.formLogin().authenticationDetailsSource(authenticationDetailsSource)
@Autowired
private AuthenticationDetailsSource<HttpServletRequest, WebAuthenticationDetails> authenticationDetailsSource;
protected void configure(HttpSecurity http) throws Exception {
http
.headers()
.cacheControl()
.contentTypeOptions()
.httpStrictTransportSecurity()
.xssProtection()
.and()
.authorizeRequests()
.antMatchers(
"/css/**",
"/js/**")
.permitAll()
.antMatchers("/**")
.authenticated()
.and()
.formLogin()
.loginPage("/login")
.permitAll()
.defaultSuccessUrl("/todo.html", true)
.authenticationDetailsSource(authenticationDetailsSource)
.and()
.logout()
.logoutUrl("/logout")
.logoutRequestMatcher(new AntPathRequestMatcher("/logout"))
.logoutSuccessUrl("/login")
.and()
.csrf().disable();
}
AuthenticationProvider提供登录验证处理逻辑，我们实现该接口编写自己的验证逻辑。
package com.cgs.courses.service;
import org.springframework.security.authentication.AuthenticationProvider;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.AuthenticationException;
import org.springframework.stereotype.Component;
@Component
public class CustomAuthenticationProvider implements AuthenticationProvider {
@Override
public Authentication authenticate(Authentication authentication)
throws AuthenticationException {
CustomWebAuthenticationDetails details = (CustomWebAuthenticationDetails) authentication.getDetails(); // 如上面的介绍，这里通过authentication.getDetails()获取详细信息
// System.out.println(details); details.getRemoteAddress(); details.getSessionId(); details.getToken();
// 下面是验证逻辑，验证通过则返回UsernamePasswordAuthenticationToken，
// 否则，可直接抛出错误（AuthenticationException的子类，在登录验证不通过重定向至登录页时可通过session.SPRING_SECURITY_LAST_EXCEPTION.message获取具体错误提示信息）
if (验证通过) {
return UsernamePasswordAuthenticationToken(省略参数);
} else {
throw new AuthenticationException的子类("你要显示的错误信息")
}
}
@Override
public boolean supports(Class<?> authentication) {
return authentication.equals(UsernamePasswordAuthenticationToken.class);
}
}
@Autowired
private AuthenticationProvider authenticationProvider;
@Autowired public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception { auth.authenticationProvider(authenticationProvider); }
http://www.cnblogs.com/phoenix-smile/p/5666686.html
@Bean public AuthenticationFailureHandler authenticationFailureHandler() { ExceptionMappingAuthenticationFailureHandler failureHandler = new ExceptionMappingAuthenticationFailureHandler(); Map<String, String> failureUrlMap = new HashMap<>(); failureUrlMap.put(AccountExpiredException.class.getName(), LoginAuthenticationFailureHandler.EXPIRE_URL); failureUrlMap.put(BadCredentialsException.class.getName(), LoginAuthenticationFailureHandler.PASS_ERROR_URL); failureUrlMap.put(CaptchaException.class.getName(), LoginAuthenticationFailureHandler.KAPTCHA_ERROR_URL); failureHandler.setExceptionMappings(failureUrlMap); return failureHandler; }
标签：article ice course 复杂 基础 key autowired option nal
原文地址：http://www.cnblogs.com/softidea/p/6914279.html
