Appweb写法

web.xml v2.3

1. <?xml version="1.0" encoding="ISO-8859-1"?>
2. <!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">
3. <web-app>
4. </web-app>

web.xml v2.4

1. <?xml version="1.0" encoding="UTF-8"?>
2. <web-app id="WebApp_9" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
3. xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
4. xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
5. </web-app>

web.xml v2.5

1. <?xml version="1.0" encoding="UTF-8"?>
2. <web-app xmlns="http://java.sun.com/xml/ns/javaee"
3. xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
4. xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
5. version="2.5">
6. </web-app>

web.xml v3.0

1. <?xml version="1.0" encoding="UTF-8"?>
2. <web-app
3. version="3.0"
4. xmlns="http://java.sun.com/xml/ns/javaee"
5. xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
6. xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
7. </web-app>

web-fragment.xml

1. <web-fragment xmlns="http://java.sun.com/xml/ns/javaee"
2. xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
3. xsi:schemaLocation="
4. http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-fragment_3_0.xsd" version="3.0">
5. </web-fragment>