jdbc.properties+web.xml

1. jdbc.properties

#\u8FDE\u63A5\u8BBE\u7F6E【左边是properties被IDE编码后的结果】
jdbc.driverClassName=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql:///数据库名
jdbc.username=账户
jdbc.password=密码
# 其他内容在Spring配置文件定义

2.web.xml【前缀的版本要注意一下，版本低了一些功能不支持】

在这里version="3.1"

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         id="WebApp_ID" version="3.1">

    <!-- 读取SpringMVC -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:applicationContext.xml</param-value>
    </context-param>
    <!-- 启动Spring的监听器 -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <!--  配置解决中文乱码的问题 -->
    <filter>
        <filter-name>characterEncodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF-8</param-value>
        </init-param>
        <init-param>
            <param-name>forceEncoding</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>characterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <!-- 配置核心控制器-->
    <servlet>
        <servlet-name>dispatcher</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <!-- 告诉SpringMVC到哪里去找配置文件 -->
            <param-name>contextConfigLocation</param-name>
            <!-- 注意:这里只读取springmvc的xml -->
            <param-value>classpath:applicationContext-mvc.xml</param-value>
        </init-param>
        <!-- Servlet默认在每一次访问的时候创建 -->
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>dispatcher</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
</web-app>