版权声明: https://blog.csdn.net/dadan1314/article/details/83899921
web.xml配置
servlet
<servlet>
<servlet-name>ServletDemo1</servlet-name>
<servlet-class>com.yuan.servlet.ServletDemo1</servlet-class>
<load-on-startup>1</load-on-startup>
<init-param>
<param-name>name</param-name>
<param-value>yuan</param-value>
</init-param>
</servlet>
<servlet-name> servlet注册名
<servlet-class> servlet注册类
<load-on-startup> 启动加载servlet顺序,0表示不加载
<init-param> servlet初始化参数
servlet-mapping
<servlet-mapping>
<servlet-name>ServletDemo1</servlet-name>
<url-pattern>/ServletDemo1</url-pattern>
</servlet-mapping>
<url-pattern> 映射servlet的url
context-param
<context-param>
<param-name>url</param-name>
<param-value>jdbc:mysql://localhost:3306/test</param-value>
</context-param>
<param-name> 参数名
<param-value> 参数值
附录
<?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">
<context-param>
<param-name></param-name>
<param-value></param-value>
</context-param>
<listener>
<listener-class></listener-class>
</listener>
<servlet>
<servlet-name></servlet-name>
<servlet-class></servlet-class>
<init-param>
<param-name></param-name>
<param-value></param-value>
</init-param>
<load-on-startup></load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name></servlet-name>
<url-pattern></url-pattern>
</servlet-mapping>
<filter>
<filter-name></filter-name>
<filter-class></filter-class>
<init-param>
<param-name></param-name>
<param-value></param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name></filter-name>
<url-pattern></url-pattern>
</filter-mapping>
<welcome-file-list>
<welcome-file></welcome-file>
</welcome-file-list>
</web-app>