<!--
       | Resolves a principal from a credential using an attribute repository that is configured to resolve
       | against a deployer-specific store (e.g. LDAP).
       -->
    <bean id="primaryPrincipalResolver"
          class="org.jasig.cas.authentication.principal.PersonDirectoryPrincipalResolver" >
        <property name="attributeRepository" ref="attributeRepository" />
    </bean>

    <!--
    Bean that defines the attributes that a service may return.  This example uses the Stub/Mock version.  A real implementation
    may go against a database or LDAP server.  The id should remain "attributeRepository" though.
    +-->
    <bean id="attributeRepository" class="org.jasig.services.persondir.support.StubPersonAttributeDao"
            p:backingMap-ref="attrRepoBackingMap" />
    
    <util:map id="attrRepoBackingMap">
        <entry key="uid" value="http://www.mamicode.com/uid" />
        <entry key="eduPersonAffiliation" value="http://www.mamicode.com/eduPersonAffiliation" /> 
        <entry key="groupMembership" value="http://www.mamicode.com/groupMembership" />
    </util:map>

public final Principal resolve(final Credential credential) {
        logger.debug("Attempting to resolve a principal...");
    　　
        String principalId = extractPrincipalId(credential);  //extractPrincipalId 方法从credential中抽取id

       //省略...
        final IPersonAttributes personAttributes = this.attributeRepository.getPerson(principalId);  //根据IPersonAttributeDao 中的getPerson 获取返回的属性
        final Map<String, List<Object>> attributes;

       //最终返回 Principal 
        return new SimplePrincipal(principalId, convertedAttributes);
    }    

public class BlogStubPersonAttributeDao extends StubPersonAttributeDao {

    @Override
    public IPersonAttributes getPerson(String uid) {
        
        Map<String, List<Object>> attributes = new HashMap<String, List<Object>>();
        attributes.put("userid", Collections.singletonList((Object)uid));
        attributes.put("cnblogUsername", Collections.singletonList((Object)"http://www.cnblogs.com/vhua"));
        attributes.put("cnblogPassword", Collections.singletonList((Object)"123456"));
        attributes.put("test", Collections.singletonList((Object)"test"));
        return new AttributeNamedPersonImpl(attributes);
    }
    
}

<bean id="primaryPrincipalResolver"
          class="org.jasig.cas.authentication.principal.PersonDirectoryPrincipalResolver" >
        <property name="attributeRepository" ref="attributeRepository" />
    </bean>

<!-- 修改前 -->
    <bean id="attributeRepository" class="org.jasig.services.persondir.support.StubPersonAttributeDao"
            p:backingMap-ref="attrRepoBackingMap" />
    
    <util:map id="attrRepoBackingMap">
        <entry key="uid" value="http://www.mamicode.com/uid" />
        <entry key="eduPersonAffiliation" value="http://www.mamicode.com/eduPersonAffiliation" /> 
        <entry key="groupMembership" value="http://www.mamicode.com/groupMembership" />
    </util:map>
<!-- 修改前 end-->


<!--修改后-->
    <bean id="attributeRepository" class="org.jasig.services.persondir.support.BlogStubPersonAttributeDao" />    
<!--修改后  end-->

<cas:serviceResponse xmlns:cas=‘http://www.yale.edu/tp/cas‘>
    <cas:authenticationSuccess>
        <cas:user>${fn:escapeXml(assertion.primaryAuthentication.principal.id)}</cas:user>
        
　　　　<!-- 这段 -- >
        <c:if test="${fn:length(assertion.chainedAuthentications[fn:length(assertion.chainedAuthentications)-1].principal.attributes) > 0}">
            <cas:attributes>
                <c:forEach var="attr" items="${assertion.chainedAuthentications[fn:length(assertion.chainedAuthentications)-1].principal.attributes}">
                    <cas:${fn:escapeXml(attr.key)}>${fn:escapeXml(attr.value)}</cas:${fn:escapeXml(attr.key)}>
                </c:forEach>
            </cas:attributes>
        </c:if>
        <!-- 这段 end-- >


        <c:if test="${not empty pgtIou}">
                <cas:proxyGrantingTicket>${pgtIou}</cas:proxyGrantingTicket>
        </c:if>
        <c:if test="${fn:length(assertion.chainedAuthentications) > 1}">
          <cas:proxies>
            <c:forEach var="proxy" items="${assertion.chainedAuthentications}" varStatus="loopStatus" begin="0" end="${fn:length(assertion.chainedAuthentications)-2}" step="1">
                 <cas:proxy>${fn:escapeXml(proxy.principal.id)}</cas:proxy>
            </c:forEach>
          </cas:proxies>
        </c:if>
    </cas:authenticationSuccess>
</cas:serviceResponse>

<!DOCTYPE html">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>返回值测试</title>
</head>
<body>

    <% 
    request.setCharacterEncoding("UTF-8");
    AttributePrincipal principal = (AttributePrincipal) request.getUserPrincipal();
    Map attributes = principal.getAttributes();
    String userid=(String)attributes.get("userid"); 
    String cnblogUsername = (String)attributes.get("cnblogUsername"); 
    String cnblogPassword = (String)attributes.get("cnblogPassword"); 
    String test=(String)attributes.get("test"); 
    
    %>
    <div>飞奔的蜗牛博客：返回值演示</div>
    <ul>
        <li>userid：<%= userid%></li>
        <li>username：<%= cnblogUsername%></li>
        <li>password：<%= cnblogPassword%></li>
        <li>test：<%= test%></li>
    </ul>
</body>
</html>