web.xml

它统一管理各个应用系统用户的身份验证

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4" 
	xmlns="http://java.sun.com/xml/ns/j2ee" 
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
	xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee 
	http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
	<filter>
        <filter-name>SSOFilter</filter-name>
        <filter-class>sso.SSOFilter</filter-class>
        <init-param>
            <param-name>cookieName</param-name>
            <param-value>WebAppSSOID</param-value>
        </init-param>
        <init-param>
            <param-name>SSOServiceURL</param-name>
            <param-value>http://localhost:8080/SSOAuth/SSOAuth</param-value>
        </init-param>
        <init-param>
            <param-name>SSOLoginPage</param-name>
            <param-value>http://localhost:8080/SSOAuth/login.jsp</param-value>
        </init-param>
        </filter>
    <filter-mapping>
        <filter-name>SSOFilter</filter-name>
        <url-pattern>/manage/*</url-pattern>
    </filter-mapping>
    <session-config>
        <session-timeout>
            30
        </session-timeout>
    </session-config>
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
</web-app>