web.xml文件头声明各个版本参考

￡神魔★判官ぃ 2022-01-07 07:49 218阅读 0赞

1.  Servlet 3.1  
    Java EE 7 XML schema, namespace is [http://xmlns.jcp.org/xml/ns/javaee/][http_xmlns.jcp.org_xml_ns_javaee]

<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
             http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
             version="3.1">
    </web-app>

1.  Servlet 3.0  
    Java EE 6 XML schema, namespace is [http://java.sun.com/xml/ns/javaee][http_java.sun.com_xml_ns_javaee]

<web-app xmlns="http://java.sun.com/xml/ns/javaee"
              xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
              xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
              http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
              version="3.0">
    </web-app>

1.  Servlet 2.5  
    Java EE 5 XML schema, namespace is [http://java.sun.com/xml/ns/javaee][http_java.sun.com_xml_ns_javaee]

<web-app xmlns="http://java.sun.com/xml/ns/javaee"
              xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
              xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
              http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
              version="2.5">
    </web-app>

1.  Servlet 2.4  
    J2EE 1.4 XML schema, namespace is [http://java.sun.com/xml/ns/j2ee][http_java.sun.com_xml_ns_j2ee]

<web-app 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"
              version="2.4">
    
      <display-name>Servlet 2.4 Web Application</display-name>
    </web-app>

1.  Servlet 2.3  
    J2EE 1.3 DTDs schema. This web.xml file is too old, highly recommend you to upgrade it.

<!DOCTYPE web-app PUBLIC
     "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
     "http://java.sun.com/dtd/web-app_2_3.dtd" >
    
    <web-app>
      <display-name>Servlet 2.3 Web Application</display-name>
    </web-app>

转载于:https://www.cnblogs.com/Im-Victor/p/10919577.html

[http_xmlns.jcp.org_xml_ns_javaee]: https://link.jianshu.com?t=http%3A%2F%2Fxmlns.jcp.org%2Fxml%2Fns%2Fjavaee%2F
[http_java.sun.com_xml_ns_javaee]: https://link.jianshu.com?t=http%3A%2F%2Fjava.sun.com%2Fxml%2Fns%2Fjavaee
[http_java.sun.com_xml_ns_j2ee]: https://link.jianshu.com?t=http%3A%2F%2Fjava.sun.com%2Fxml%2Fns%2Fj2ee