PROSAGA码农传奇-安全配置管理-更改Spring Security配置

<div class =“post-text”itemprop =“text”>
  <P>
    您可以创建DelegatingAuthenticationEntryPoint，如果CAS服务器已启动或委派给LoginUrlAuthenticationEntryPoint，它将委派给标准CasAuthenticationEntryPoint。实现看起来如下所示
  </p>
   <pre>
    <code>
      public class DelegatingAuthenticationEntryPoint implements AuthenticationEntryPoint {
    private AuthenticationEntryPoint casAuthenticationEntryPoint;
    private AuthenticationEntryPoint ldapAuthenticationEntryPoint;

public DelegatingAuthenticationEntryPoint(AuthenticationEntryPoint casAuthenticationEntryPoint,
        AuthenticationEntryPoint ldapAuthenticationEntryPoint) {
        this.casAuthenticationEntryPoint = casAuthenticationEntryPoint;
        this.ldapAuthenticationEntryPoint = ldapAuthenticationEntryPoint;
    }

public void commence(HttpServletRequest request, HttpServletResponse response, AuthenticationException authException)
        throws IOException, ServletException {
        if(casServerAvailable()) {
            casAuthenticationEntryPoint.commence(request, response, authException);
        } else {
            ldapAuthenticationEntryPoint.commence(request, response, authException);
        }
    }

private boolean casServerAvailable() {
        // TODO implement this method
        return false;
    }
}

</code>
  </pre>
  <P>
    然后，您将使用类似于以下内容的entry-point-ref属性连接DelegatingAuthenticationEntryPoint：
  </p>
   <pre>
    <code>
          <sec:http entry-point-ref="delegateEntryPoint">
      ...
    </sec:http>
<bean id="delegateEntryPoint" class="sample.DelegatingAuthenticationEntryPoint">
    <constructor-arg>
        <bean class="org.springframework.security.cas.web.CasAuthenticationEntryPoint"
            p:serviceProperties-ref="serviceProperties" 
            p:loginUrl="https://example.com/cas/login" />
    </constructor-arg>
    <constructor-arg>
        <bean class="org.springframework.security.web.authentication.LoginUrlAuthenticationEntryPoint"
            p:loginFormUrl="/login"/>
    </constructor-arg>
</bean>

</code>
  </pre>
</DIV>