我已经提问过一次了！！！请务必详细解答 

 我因该在url里输入什么 在地址栏里输入什么？ 现在打开网页是404  或 有的时候地址输入 是一直转也不跳转 也不报错    到底是哪里的问题 ，耽误一天的时间了 希望赶紧解决

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration
        PUBLIC "-//mybatis.org//DTD Config 3.4//EN"
        "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>

    <environments default="development">
        <environment id="development">
            <transactionManager type="JDBC"></transactionManager>
            <dataSource type="POOLED">
                <property name="driver" value="com.mysql.jdbc.Driver"/>
                <property name="url" value="jdbc:mysql://localhost:3306/icake?useUnicode=true&amp;characterEncoding=UTF-8&amp;serverTimezone=UTC"/>
                <property name="username" value="root"/>
                <property name="password" value="123456"/>
            </dataSource>
        </environment>
    </environments>
    <mappers>
        <package name="com.imooc.icake.dao"/>
    </mappers>
</configuration>

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.imooc</groupId>
    <artifactId>icake</artifactId>
    <version>1.0-SNAPSHOT</version>

    <packaging>war</packaging>

    <dependencies>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.18</version>
        </dependency>

        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.4.4</version>
        </dependency>

        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>4.0.0</version>
        </dependency>

        <dependency>
            <groupId>jstl</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>

    </dependencies>




</project>

<?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">
<!--    <listener>-->
<!--        <listener-class>com.imooc.icake.global.CatelogTreeListener</listener-class>-->
<!--    </listener>-->
    <filter>
        <filter-name>encoding</filter-name>
        <filter-class>com.imooc.icake.global.EncodingFilter</filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF-8</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>encoding</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

<!--    <filter>-->
<!--        <filter-name>Login</filter-name>-->
<!--        <filter-class>com.imooc.icake.global.LoginFilter</filter-class>-->
<!--    </filter>-->
<!--    <filter-mapping>-->
<!--        <filter-name>Login</filter-name>-->
<!--        <url-pattern>/admin/*</url-pattern>-->
<!--    </filter-mapping>-->

    <servlet>
        <servlet-name>GlobalServlet</servlet-name>
        <servlet-class>com.imooc.icake.global.GlobalController</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>GlobalServlet</servlet-name>
        <url-pattern>*.do</url-pattern>
    </servlet-mapping>
</web-app>