Java - JavaWeb - POM/Web - Config

1 JAR 依赖包配置

Maven Reponsitory @  Maven Repository: Search/Browse/Explore (mvnrepository.com)
Servlet:  servlet依赖 / JSP依赖
JSP: JSTL依赖 / Standard依赖
MySQL:  JDBC MYSQL依赖
文件上传: Fileupload 依赖 / IO 依赖
Mail邮件: Mail , Activation
Lombok：lombok

单元测试: JUnit依赖

        <!--Servlet 依赖-->
        <!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->

        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>4.0.1</version>
        </dependency>
        <!--JSP 依赖-->
        <!-- https://mvnrepository.com/artifact/javax.servlet.jsp/javax.servlet.jsp-api -->

        <dependency>
            <groupId>javax.servlet.jsp</groupId>
            <artifactId>javax.servlet.jsp-api</artifactId>
            <version>2.3.3</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/javax.servlet.jsp.jstl/jstl-api -->
        <!--JSTL表达式的依赖-->
        <dependency>
            <groupId>javax.servlet.jsp.jstl</groupId>
            <artifactId>jstl-api</artifactId>
            <version>1.2</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/taglibs/standard -->
        <!--Standard 标签库的依赖-->
        <dependency>
            <groupId>taglibs</groupId>
            <artifactId>standard</artifactId>
            <version>1.1.2</version>
        </dependency>

 

MySQL

    <!--      mysql的驱动-->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>8.0.33</version>
    </dependency>

文件上传

<!-- https://mvnrepository.com/artifact/commons-fileupload/commons-fileupload -->
<dependency>
    <groupId>commons-fileupload</groupId>
    <artifactId>commons-fileupload</artifactId>
    <version>1.5</version>
</dependency>

<!-- https://mvnrepository.com/artifact/commons-io/commons-io -->
<dependency>
    <groupId>commons-io</groupId>
    <artifactId>commons-io</artifactId>
    <version>2.13.0</version>
</dependency>

邮件Mail

<!-- https://mvnrepository.com/artifact/javax.mail/mail -->
<dependency>
    <groupId>javax.mail</groupId>
    <artifactId>mail</artifactId>
    <version>1.4.7</version>
</dependency>

<!-- https://mvnrepository.com/artifact/javax.activation/activation -->
<dependency>
    <groupId>javax.activation</groupId>
    <artifactId>activation</artifactId>
    <version>1.1.1</version>
</dependency>

 
Lombok

<!-- https://mvnrepository.com/artifact/org.projectlombok/lombok -->
<dependency>
    <groupId>org.projectlombok</groupId>
    <artifactId>lombok</artifactId>
    <version>1.18.28</version>
    <scope>provided</scope>
</dependency>

 

单元测试

version 4.12 有安全漏洞；4.13.2不支持@Test，所以选择4.13.1
或者直接选择5.9.3 最新版本

<!-- https://mvnrepository.com/artifact/org.junit.jupiter/junit-jupiter-api -->
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-api</artifactId>
<version>5.9.3</version>
<scope>test</scope>
</dependency>

 

2 Web.xml配置

 Servlet，过滤器，监听器配置

<?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_4_0.xsd"
         version="4.0">

    <servlet>
        <servlet-name>ShowServlet</servlet-name>
        <servlet-class>com.crevew.servlet.ShowServlet</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>ShowServlet</servlet-name>
        <url-pattern>/servlet/show</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>ShowServlet</servlet-name>
        <url-pattern>/show</url-pattern>
    </servlet-mapping>

<!--    注册过滤器-->
    <filter>
        <filter-name>CharacterEncodingFileter</filter-name>
        <filter-class>com.crevew.filter.CharacterEncodingFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>CharacterEncodingFileter</filter-name>
        <!-- 只要是/servlet的任何请求，都会经过这个过滤器 -->
        <url-pattern>/servlet/*</url-pattern>
    </filter-mapping>

<!--注册监听器-->
    <listener>
        <listener-class>com.crevew.listener.OnelineCountListener</listener-class>
    </listener>

    <servlet>
        <servlet-name>LoginServlet</servlet-name>
        <servlet-class>com.crevew.servlet.LoginServlet</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>LoginServlet</servlet-name>
        <url-pattern>/servlet/login</url-pattern>
    </servlet-mapping>

    <servlet>
        <servlet-name>LogoutServlet</servlet-name>
        <servlet-class>com.crevew.servlet.LogoutServlet</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>LogoutServlet</servlet-name>
        <url-pattern>/servlet/logout</url-pattern>
    </servlet-mapping>

    <!--    注册过滤器-->
    <filter>
        <filter-name>SysFilter</filter-name>
        <filter-class>com.crevew.filter.SysFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>SysFilter</filter-name>
        <!-- 只要是/servlet的任何请求，都会经过这个过滤器 -->
        <url-pattern>/sys/*</url-pattern>
    </filter-mapping>

</web-app>