项目效果预览：
通过访问控制层的test/dologin方法进入index.jsp，展示jsp中的“hello,ssm”内容
一、新建项目：
1.打开IDEA，新建一个Maven项目
2.点击next,新建一个为ssmDemo的Maven项目（自己定义项目GroupId和ArtifactId）
3.配置本地Maven路径
4.点击Next,确认项目信息,配置项目名称和项目路径，点击Finish按钮即可创建项目
5.项目创建完成,目录结构如下：
注：如项目目录中未包含src,则项目还在初始化，注意网络连接，稍等片刻即可
二、补充项目结构：
1.在main文件夹下面创建java和resources文件夹
2.使java文件夹为项目资源文件夹（Sources root）
3.使resources文件夹为Resources root
4.在src/java目录下面创建com包，在com包创建controller、dao、po、service、service.impl包
三、完善pom.xml(添加项目依赖--完整pom.xml代码)
<?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.demo</groupId>
<artifactId>ssmDemo02</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<name>ssmDemo02 Maven Webapp</name>
<!-- FIXME change it to the project's website -->
<url>http://www.example.com</url>
<properties>
<!--编译编码-->
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<!--maven版本管理-->
<maven.compiler.source>1.7</maven.compiler.source>
<maven.compiler.target>1.7</maven.compiler.target>
<!-- spring版本管理
当对spring进行版本控制后，
maven导入的jar包就不需要关心版本的问题，
因为会自动匹配符合当前版本控制版本的jar包
，导入方式如下：${spring.version}-->
<spring.version>5.0.2.RELEASE</spring.version>
<!-- log4j日志文件管理包版本 -->
<slf4j.version>1.6.6</slf4j.version>
<log4j.version>1.2.12</log4j.version>
<shiro.version>1.2.3</shiro.version>
<!-- mysql连接驱动版本号 -->
<mysql.version>5.1.6</mysql.version>
<!-- mybatis版本号 -->
<mybatis.version>3.4.5</mybatis.version>
<spring.security.version>5.0.1.RELEASE</spring.security.version>
</properties>
<dependencies>
<!-- Mybatis 和 mybatis 与 spring 的整合 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.0</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.6.8</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<!--junit测试-->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<!--mysql-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.version}</version>
</dependency>
<!--servlet-->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
<!--jstl-->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- log -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>${log4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j.version}</version>
</dependency>
<!--alibaba连接池-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.0.9</version>
</dependency>
</dependencies>
<build>
<finalName>ssmDemo02</finalName>
<pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
<plugins>
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<version>3.1.0</version>
</plugin>
<!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>3.0.2</version>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.1</version>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.2.2</version>
</plugin>
<plugin>
<artifactId>maven-install-plugin</artifactId>
<version>2.5.2</version>
</plugin>
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.8.2</version>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>
效果图：
注1：代码复制完成后，选择右下角的Import Changes
注2：如Import Changes后External还未出现jar包,则选中项目，右键，选择maven，Generate Sources...
四、为项目导入jar包
1.选择项目右键 -- open Module Setting
2.选择Artifact
3.选择项目名，选择outPut LayOut，选择Available Elements -- 选择项目名称 -- 右键 -- put into...
效果图(WEB-INF中添加了lib目录)：
五、完善target文件夹
1.选择右侧侧栏的maven
2.选择Lifecycle -- 选择clean(双击)
3.选择Lifecycle -- 选择install(双击)
4.效果图
六、测试项目
1.添加tomcat(run --> editConfigurations --> 点击+ --> 选择tomcat-- local)
2.配置Deployment(点击Deployment -- 选择右下角+ -- 选择Artifact --选择Artifa)
3.配置访问路径:/ssmDemotest
4.启动tomcat，访问：http://localhost:8080/ssmDemotest
七、编写ssm框架所需xml
1.在src/resources文件夹下面添加mybatis包、spring包
2.在src/resources文件夹下面添加log4j.properties、db.properties
3.在mybatis包下添加：mybatis-config.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<!-- 别名 -->
<typeAliases>
<package name="com.po" />
</typeAliases>
</configuration>
4.在spring包下添加：spring-dao.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
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-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">
<!-- 1.配置component-scan 扫描service,mapper包 -->
<!-- 如不写,则在控制层的@Resource注解则指定不到对应的service类 -->
<context:component-scan base-package="com.service" />
<context:component-scan base-package="com.dao" />
<!-- 2.配置 读取properties文件 jdbc.properties -->
<context:property-placeholder location="classpath:db.properties" />
<!-- 3.配置 数据源 -->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
<property name="driverClassName" value="${jdbc.driver}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
</bean>
<!-- 4.配置SqlSessionFactory对象 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 4.1.注入数据库连接池 -->
<property name="dataSource" ref="dataSource" />
<!-- 4.2.配置MyBaties全局配置文件:mybatis-config.xml -->
<property name="configLocation" value="classpath:mybatis/mybatis-config.xml" />
<!-- 4.3.扫描entity包 使用别名 -->
<property name="typeAliasesPackage" value="com.po" />
<!-- 4.4.扫描sql配置文件:mapper需要的xml文件
<property name="mapperLocations" value="classpath:com/dao/*.xml" /> -->
</bean>
<!-- 5.配置Mapper扫描 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!-- 5.1.注入sqlSessionFactory -->
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
<!-- 5.2.配置Mapper扫描 -->
<property name="basePackage" value="com.dao" />
</bean>
</beans>
5.在spring包下添加：spring-service.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
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-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">
<!-- 配置Service扫描 -->
<context:component-scan base-package="com.service" />
</beans>
6.在spring包下添加：spring-mvc.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">
<!-- 1.配置Controller扫描 -->
<context:component-scan base-package="com.controller" />
<!-- 2.配置注解驱动 -->
<mvc:annotation-driven />
<!-- 3.配置视图解析器 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!-- 4.1.前缀 -->
<property name="prefix" value="/WEB-INF/jsp/" />
<!-- 4.2.后缀 -->
<property name="suffix" value=".jsp" />
</bean>
</beans>
7. 完善web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID"
version="2.5">
<display-name>Archetype Created Web Application</display-name>
<!-- 1.加载spring容器 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/spring-dao.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- 2.springmvc前端控制器 -->
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/spring-mvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- 3.设置匹配所有的url -->
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.js</url-pattern>
</servlet-mapping>
</web-app>
八、启动tomcat,测试xml文件是否正确
1.如启动日志没有错误信息，则xml添加无误
2.如网址：http://localhost:8080/ssmDemotest 正常展示，则xml添加无误
注：由于大部分代码均为复制，可以重启IDEA
九、controller层
1.在controller包新建类：TestController
2.在类顶部(导包语句下面)添加注解：@Controller，@RequestMapping(value = "test")
3.编写方法：
@RequestMapping("dologin")
public String dologin() {
System.out.println("====test====");
return "index";
}
十、JSP
1.在web-inf下创建目录：jsp
2.在jsp文件下创建:index.jsp
3.在index.jsp下添加:hello,ssm
十一、测试
http://localhost:8080/ssmDemotest/test/dologin
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