Description: Explain some of the main methods sevlet, including add, delete, update, some of the commonly used methods of inquiry sevlet.
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File list (Check if you may need any files):
javaweb\.classpath
.......\.project
.......\.settings\org.eclipse.jdt.core.prefs
.......\aaa\WEB-INF\classes\com\yunju\servlet\FirstServlet.class
.......\...\.......\lib\servlet-api.jar
.......\...\.......\web.xml
.......\src\com\yunju\servlet\FirstServlet.java
.......\aaa\WEB-INF\classes\com\yunju\servlet
.......\...\.......\.......\...\yunju
.......\...\.......\.......\com
.......\src\com\yunju\servlet
.......\aaa\WEB-INF\classes
.......\...\.......\lib
.......\src\com\yunju
.......\aaa\WEB-INF
.......\src\com
.......\.settings
.......\aaa
.......\src
javaweb