servlet版本与tomcat版本对应关系，各版本web.xml头信息写法

r囧r小猫 2022-09-29 01:51 177阅读 0赞

Apache官方对各版本的解释：[http://tomcat.apache.org/whichversion.html][http_tomcat.apache.org_whichversion.html]

The mapping between the specifications and the respective Apache Tomcat versions is:

<table style="border:1px solid silver; border-collapse:collapse; word-break:break-word; color:rgb(0,0,0); font-family:Verdana,Arial,Helvetica,sans-serif; font-size:14px"> 
 <tbody> 
 <tr> 
 <th style="border:1px solid silver; border-collapse:collapse; padding:3px">Servlet Spec</th> 
 <th style="border:1px solid silver; border-collapse:collapse; padding:3px">JSP Spec</th> 
 <th style="border:1px solid silver; border-collapse:collapse; padding:3px">EL Spec</th> 
 <th style="border:1px solid silver; border-collapse:collapse; padding:3px">WebSocket Spec</th> 
 <th style="border:1px solid silver; border-collapse:collapse; padding:3px">JASPIC Spec</th> 
 <th style="border:1px solid silver; border-collapse:collapse; padding:3px">Apache Tomcat version</th> 
 <th style="border:1px solid silver; border-collapse:collapse; padding:3px">Actual release revision</th> 
 <th style="border:1px solid silver; border-collapse:collapse; padding:3px">Supported Java Versions</th> 
 </tr> 
 <tr> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 4.0</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> TBD (2.4?)</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> TBD (3.1?)</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> TBD (1.2?)</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 1.1</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 9.0.x</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 9.0.0.M9 (alpha)</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 8 and later</td> 
 </tr> 
 <tr> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 3.1</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 2.3</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 3.0</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 1.1</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 1.1</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 8.5.x</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 8.5.4</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 7 and later</td> 
 </tr> 
 <tr> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 3.1</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 2.3</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 3.0</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 1.1</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> N/A</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 8.0.x (superseded)</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 8.0.35 (superseded)</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 7 and later</td> 
 </tr> 
 <tr> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 3.0</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 2.2</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 2.2</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 1.1</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> N/A</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 7.0.x</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 7.0.70</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 6 and later (7 and later for WebSocket)</td> 
 </tr> 
 <tr> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 2.5</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 2.1</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 2.1</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> N/A</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> N/A</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 6.0.x</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 6.0.45</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 5 and later</td> 
 </tr> 
 <tr> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 2.4</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 2.0</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> N/A</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> N/A</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> N/A</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 5.5.x (archived)</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 5.5.36 (archived)</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 1.4 and later</td> 
 </tr> 
 <tr> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 2.3</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 1.2</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> N/A</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> N/A</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> N/A</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 4.1.x (archived)</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 4.1.40 (archived)</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 1.3 and later</td> 
 </tr> 
 <tr> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 2.2</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 1.1</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> N/A</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> N/A</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> N/A</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 3.3.x (archived)</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 3.3.2 (archived)</td> 
 <td style="font-size:14px; border:1px solid silver; border-collapse:collapse; padding:3px"> 1.1 and later </td> 
 </tr> 
 </tbody> 
</table>

web.xml v2.3

![复制代码][copycode.gif]

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 
 4 <web-app> 
 5 
 6 </web-app>

![复制代码][copycode.gif]

web.xml v2.4

![复制代码][copycode.gif]

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 
 6 </web-app>

![复制代码][copycode.gif]

web.xml v2.5

![复制代码][copycode.gif]

1 <?xml version="1.0" encoding="UTF-8"?> 
 2 
 3 <web-app xmlns="http://java.sun.com/xml/ns/javaee" 
 4 
 5 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
 6 
 7 xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 
 8 
 9 version="2.5"> 
 10 
 11 </web-app>

![复制代码][copycode.gif]

web.xml v3.0

![复制代码][copycode.gif]

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

[http_tomcat.apache.org_whichversion.html]: http://tomcat.apache.org/whichversion.html
[copycode.gif]: /images/20220708/aee96729d85c452e84dddd0d60507ece.png