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  • web.xml文件头声明各个版本参考

    1. Servlet 3.1
      Java EE 7 XML schema, namespace is 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
    <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
    <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
    <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>
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  • 原文地址:https://www.cnblogs.com/Im-Victor/p/10919577.html
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