如何修改多个servlet的web.xml

我只是对如何修改多个 servlet 的 web.xml 感到困惑。 我有3个servlet来处理3个不同的jsp，但现在只有1个servlet有效。

您应该在 web.xml 文件中声明并定义类/servlet，如下所示：

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" 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">
    
    <servlet>
        <servlet-name>LoginForm</servlet-name>
        <servlet-class>com.project.system.LoginForm</servlet-class>
    </servlet>
    <servlet>
        <servlet-name>RegisterForm</servlet-name>
        <servlet-class>com.project.system.RegisterForm</servlet-class>
    </servlet>
    <servlet>
        <servlet-name>UserController</servlet-name>
        <servlet-class>com.project.controller.UserController</servlet-class>
    </servlet>

    <servlet-mapping>
        <servlet-name>LoginForm</servlet-name>
        <url-pattern>/LoginForm</url-pattern>
    </servlet-mapping>   
    <servlet-mapping>
        <servlet-name>RegisterForm</servlet-name>
        <url-pattern>/RegisterForm</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>UserController</servlet-name>
        <url-pattern>/UserController</url-pattern>
    </servlet-mapping>

    <session-config>
        <session-timeout>
            30
        </session-timeout>
    </session-config>

</web-app>