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  • web.xml 文件头

     Servlet 2.3

    <!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>

    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>

    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>

    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>

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

    <?xml version="1.0" encoding="UTF-8"?>
    <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>

    Servlet 4.1

    <?xml version="1.0" encoding="UTF-8"?>
    <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_4_0.xsd"
         version="4.0">
        <display-name>Archetype Created Web Application</display-name>
    </web-app>

    https://www.mkyong.com/web-development/the-web-xml-deployment-descriptor-examples/

    https://en.wikipedia.org/wiki/Java_servlet

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  • 原文地址:https://www.cnblogs.com/jhxxb/p/10573843.html
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