web.xml

xml层次分析

<web-app>
    <display-name>Servlet 2.4 Examples</display-name>
    <description>Servlet 2.4 Examples.</description>
    <filter>
        <filter-name>Servlet Mapped Filter</filter-name>
        <filter-class>filters.ExampleFilter</filter-class>
	<init-param>
	    <param-name>attribute</param-name>
	    <param-value>filters.ExampleFilter.SERVLET_MAPPED</param-value>
	</init-param>
    </filter>
    <filter>
        <filter-name>Path Mapped Filter</filter-name>
        <filter-class>filters.ExampleFilter</filter-class>
	<init-param>
	    <param-name>attribute</param-name>
	    <param-value>filters.ExampleFilter.PATH_MAPPED</param-value>
	</init-param>
    </filter>
    <filter>
        <filter-name>Request Dumper Filter</filter-name>
        <filter-class>filters.RequestDumperFilter</filter-class>
    </filter>

    <filter>
        <filter-name>Set Character Encoding</filter-name>
        <filter-class>filters.SetCharacterEncodingFilter</filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>EUC_JP</param-value>
        </init-param>
    </filter>

    <filter>
        <filter-name>Compression Filter</filter-name>
        <filter-class>compressionFilters.CompressionFilter</filter-class>

        <init-param>
          <param-name>compressionThreshold</param-name>
          <param-value>10</param-value>
        </init-param>
        <init-param>
          <param-name>debug</param-name>
          <param-value>0</param-value>
        </init-param>
    </filter>


    <filter-mapping>
        <filter-name>Servlet Mapped Filter</filter-name>
	<servlet-name>invoker</servlet-name>
    </filter-mapping>
    <filter-mapping>
        <filter-name>Path Mapped Filter</filter-name>
	<url-pattern>/servlet/*</url-pattern>
    </filter-mapping>




    <filter-mapping>
        <filter-name>Set Character Encoding</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <filter-mapping>
      <filter-name>Compression Filter</filter-name>
      <url-pattern>/CompressionTest</url-pattern>
    </filter-mapping>

    <filter-mapping>
        <filter-name>Request Dumper Filter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>


  
    <listener>
        <listener-class>listeners.ContextListener</listener-class>
    </listener>
    <listener>
        <listener-class>listeners.SessionListener</listener-class>
    </listener>



    <servlet>
        <servlet-name>CompressionFilterTestServlet</servlet-name>
        <servlet-class>compressionFilters.CompressionFilterTestServlet</servlet-class>
    </servlet>
    <servlet>
        <servlet-name>HelloWorldExample</servlet-name>
        <servlet-class>HelloWorldExample</servlet-class>
    </servlet>
    <servlet>
        <servlet-name>RequestInfoExample</servlet-name>
        <servlet-class>RequestInfoExample</servlet-class>
    </servlet>
    <servlet>
        <servlet-name>RequestHeaderExample</servlet-name>
        <servlet-class>RequestHeaderExample</servlet-class>
    </servlet>
    <servlet>
        <servlet-name>RequestParamExample</servlet-name>
        <servlet-class>RequestParamExample</servlet-class>
    </servlet>
    <servlet>
        <servlet-name>CookieExample</servlet-name>
        <servlet-class>CookieExample</servlet-class>
    </servlet>
    <servlet>
        <servlet-name>SessionExample</servlet-name>
        <servlet-class>SessionExample</servlet-class>
    </servlet>

    <servlet-mapping>
        <servlet-name>CompressionFilterTestServlet</servlet-name>
        <url-pattern>/CompressionTest</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>HelloWorldExample</servlet-name>
        <url-pattern>/servlet/HelloWorldExample</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>RequestInfoExample</servlet-name>
        <url-pattern>/servlet/RequestInfoExample/*</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>RequestHeaderExample</servlet-name>
        <url-pattern>/servlet/RequestHeaderExample</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>RequestParamExample</servlet-name>
        <url-pattern>/servlet/RequestParamExample</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>CookieExample</servlet-name>
        <url-pattern>/servlet/CookieExample</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>SessionExample</servlet-name>
        <url-pattern>/servlet/SessionExample</url-pattern>
    </servlet-mapping>

    <security-constraint>
      <display-name>Example Security Constraint</display-name>
      <web-resource-collection>
         <web-resource-name>Protected Area</web-resource-name>

         <url-pattern>/jsp/security/protected/*</url-pattern>

	 <http-method>DELETE</http-method>
         <http-method>GET</http-method>
         <http-method>POST</http-method>
	 <http-method>PUT</http-method>
      </web-resource-collection>
      <auth-constraint>
         
         <role-name>tomcat</role-name>
	 <role-name>role1</role-name>
      </auth-constraint>
    </security-constraint>

    <login-config>
      <auth-method>FORM</auth-method>
      <realm-name>Example Form-Based Authentication Area</realm-name>
      <form-login-config>
        <form-login-page>/jsp/security/protected/login.jsp</form-login-page>
        <form-error-page>/jsp/security/protected/error.jsp</form-error-page>
      </form-login-config>
    </login-config>

    
    <security-role>
      <role-name>role1</role-name>
    </security-role>
    <security-role>
      <role-name>tomcat</role-name>
    </security-role>


      <env-entry-description>
         The maximum number of tax exemptions allowed to be set.
      </env-entry-description>
      <env-entry-name>maxExemptions</env-entry-name>
      <env-entry-value>15</env-entry-value>
      <env-entry-type>java.lang.Integer</env-entry-type>
    </env-entry-->
    <env-entry>
      <env-entry-name>minExemptions</env-entry-name>
      <env-entry-value>1</env-entry-value>
      <env-entry-type>java.lang.Integer</env-entry-type>
    </env-entry>
    <env-entry>
      <env-entry-name>foo/name1</env-entry-name>
      <env-entry-value>value1</env-entry-value>
      <env-entry-type>java.lang.String</env-entry-type>
    </env-entry>
    <env-entry>
      <env-entry-name>foo/bar/name2</env-entry-name>
      <env-entry-value>true</env-entry-value>
      <env-entry-type>java.lang.Boolean</env-entry-type>
    </env-entry>
    <env-entry>
      <env-entry-name>name3</env-entry-name>
      <env-entry-value>1</env-entry-value>
      <env-entry-type>java.lang.Integer</env-entry-type>
    </env-entry>
    <env-entry>
      <env-entry-name>foo/name4</env-entry-name>
      <env-entry-value>10</env-entry-value>
      <env-entry-type>java.lang.Integer</env-entry-type>
    </env-entry>

</web-app>