一SSM项目的创建

　　1、在创建好的maven项目中新建java文件夹和resources文件夹

　　　　　①java文件夹mark directory as sources root

　　　　②resources文件夹mark directory as resources root

　　2、在resources文件夹中新建springmvc-conf.xml文件

　　3、在resources文件夹中新建applicationContext.xml文件

　　4、在resources文件夹中新建datbase.properties文件

　　5、在resources文件夹中新建log4j.properties文件

二、web.xml的配置

①servlet

<servlet>
  <servlet-name>dispatcherServletservlet-name>
  <servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
  <init-param>
    <param-name>contextConfigLocationparam-name>
    <param-value>classpath:sprigMVc.xmlparam-value>
  </init-param>
    
    load-on-start元素标记容器是是否在启动的时候就加载这个servlet
    x的值必须是一个整数，表示servlet应该被载入的顺序，当它的值大于或等于0时，表示同期在应用启动时就初始化这个servlet，当它的值小于0时表示容器在该servlet被选择时才会被加载，当值相同时容器自己选择顺序加载
    x的取值12345代表的是优先级
    
  <load-on-startup>xload-on-startup>
servlet>
​
<servlet-mapping>
  <servlet-name>dispatcherServletservlet-name>
  <url-pattern>/url-pattern>
url是后缀为/的请求都必须经过spring容器
servlet-mapping>

②filter过滤器

<filter>
  <filter-name>encodingFilterfilter-name>
  <filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>
  <init-param>
    <param-name>encodingparam-name>
    <param-value>UTF-8param-value>
  init-param>
  <init-param>
    <param-name>forceEncodingparam-name>
    <param-value>trueparam-value>
  init-param>
filter>
<filter-mapping>
  <filter-name>encodingFilterfilter-name>
  <url-pattern>/*url-pattern>
filter-mapping>

三、springmvc-conf.xml的配置

1、页面架构，头文件

version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">

2、页面目录配置（视图解析器）

指定控制页面转向的目录及文件后缀
​
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    <property name="prefix" value="/WEB-INF/pages/">property>
    <property name="suffix" value=".jsp">property>
bean>

3、扫描controller包

<context:component-scan base-package="cn.travel.controller">context:component-scan>

4、开启mvc支持

<mvc:annotation-driven>mvc:annotation-driven>

四、导入依赖

（此处为培训所需ssm依赖）

  <properties>
    <project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
      指定spring版本
    <spring.version>5.0.2.RELEASEspring.version>
  properties>
​
​
<dependencies>
<!--单元测试依赖-->
  <dependency>
    <groupId>junitgroupId>
    <artifactId>junitartifactId>
    <version>4.11version>
    <scope>testscope>
  dependency>
    <!--使用action调用servlet里面get和post方法的时候需要这两个个jar包-->
  <dependency>
    <groupId>javax.servletgroupId>
    <artifactId>javax.servlet-apiartifactId>
    <version>3.1.0version>
    <scope>providedscope>
  dependency>
  <dependency>
    <groupId>javax.servlet.jspgroupId>
    <artifactId>jsp-apiartifactId>
    <version>2.2version>
    <scope>providedscope>
  dependency>
       <!--JSTL-->
    <dependency>
      <groupId>javax.servletgroupId>
      <artifactId>jstlartifactId>
      <version>1.2version>
      <scope>runtimescope>
    dependency>
<!--mysql驱动-->
  <dependency>
    <groupId>mysqlgroupId>
    <artifactId>mysql-connector-javaartifactId>
    <version>5.1.26version>
    <scope>compilescope>
  dependency>
   <!--druid连接池-->
  <dependency>
    <groupId>com.alibabagroupId>
    <artifactId>druidartifactId>
    <version>1.0.9version>
  dependency>
    <!--fastjson-->
  <dependency>
    <groupId>com.alibabagroupId>
    <artifactId>fastjsonartifactId>
    <version>1.2.75version>
  dependency