Servlet 버전별 web.xml 스키마 기술

개요

Tomcat 9에서 쓰던 어플리케이션을 Jeus7에서 Deploy하려다 보니 JeusServer.log 파일에 아래와 같은 오류가 발생한다. 

Cannot find the declaration of element 'web-app'

원인은 JEUS 7 은 servlet 3.0까지 지원하는데 web.xml 파일에 servlet 4.0을 선언하고 어플리케이션을 디플로이 하려다 보니 생기는 오류였다.( tomcat 9는 servlet 4.0 지원)

 

각 servlet 버전별 web.xml 스키마 헤더 

1. servlet 4.0

<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"> </web-app>

2. servlet 3.1

<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>

3. servlet 3.0

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

4. servlet 2.5

<?xml version="1.0" encoding="UTF-8"?> <web-app id="servlet-2_5" version="2.5"               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"> </web-app>

5. servlet 2.4

<?xml version="1.0" encoding="UTF-8"?> <web-app id="servlet-2_4" version="2.4"               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"> </web-app>

6. servlet 2.3

<?xml version="1.0" encoding="UTF-8"?> <!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> </web-app>

7. servlet 2.2

<?xml version="1.0" encoding="UTF-8"?> <!!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN" "http://java.sun.com/j2ee/dtds/web-app_2_2.dtd"> <web-app> </web-app>

** 2.4 부터는 DTD(Document Type Definition)를 사용하지 않고 xsd(XML Schema Definition)로 변경되었네요