SSM超详细搭建教程(Spring+SpringMVC+Mybatis)以及集成Redis和Druid

这个教程主要包括以下部分：
1，基础SSM(Spring+SpringMVC+Mybatis)搭建教程
2，集成Redis
3，Redis Sentinel高可用方案（基于docker）
4，Druid

该教程写完可以当作一个脚手架以后直接使用，很方便，同时会讲解一下缓存方案，为下面搭建一个分布式高可用的系统先做点铺垫，源码以及全部上传到git上面，https://github.com/wacxt/pretty_ssm ，下面开始
（1）首先是项目结构和架构图：

(2)pom.xml

<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/maven-v4_0_0.xsd">
  <modelVersion>4.0.0modelVersion>
  <groupId>pretty_ssmgroupId>
  <artifactId>pretty_ssmartifactId>
  <packaging>warpackaging>
  <version>0.0.1-SNAPSHOTversion>
  <name>pretty_ssm Maven Webappname>
  <url>http://maven.apache.orgurl>

  <properties>
        <project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
        <maven.build.timestamp.format>yyyyMMddmaven.build.timestamp.format>
        <spring.version>4.2.0.RELEASEspring.version>
    properties>

  <dependencies>
        
        <dependency>
            <groupId>com.google.guavagroupId>
            <artifactId>guavaartifactId>
            <version>18.0version>
        dependency>

        <dependency>
            <groupId>log4jgroupId>
            <artifactId>log4jartifactId>
            <version>1.2.17version>
        dependency>
        <dependency>
            <groupId>org.slf4jgroupId>
            <artifactId>slf4j-apiartifactId>
            <version>1.7.5version>
        dependency>
        <dependency>
            <groupId>org.slf4jgroupId>
            <artifactId>slf4j-log4j12artifactId>
            <version>1.7.5version>
        dependency>

        <dependency>
            <groupId>org.apache.commonsgroupId>
            <artifactId>commons-lang3artifactId>
            <version>3.3.2version>
        dependency>

        <dependency>
            <groupId>commons-iogroupId>
            <artifactId>commons-ioartifactId>
            <version>2.4version>
        dependency>

        <dependency>
            <groupId>junitgroupId>
            <artifactId>junitartifactId>
            <version>4.12version>
        dependency>

        <dependency>
            <groupId>commons-collectionsgroupId>
            <artifactId>commons-collectionsartifactId>
            <version>3.2.1version>
        dependency>

        <dependency>
            <groupId>org.quartz-schedulergroupId>
            <artifactId>quartzartifactId>
            <version>1.8.5version>
        dependency>

        <dependency>
            <groupId>com.alibabagroupId>
            <artifactId>fastjsonartifactId>
            <version>1.2.8version>
        dependency>

        <dependency>
            <groupId>org.hibernategroupId>
            <artifactId>hibernate-validatorartifactId>
            <version>4.2.0.Finalversion>
        dependency>
        

        
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-coreartifactId>
            <version>${spring.version}version>
        dependency>

        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-beansartifactId>
            <version>${spring.version}version>
        dependency>

        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-contextartifactId>
            <version>${spring.version}version>
        dependency>

        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-context-supportartifactId>
            <version>${spring.version}version>
        dependency>

        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-aopartifactId>
            <version>${spring.version}version>
        dependency>

        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-aspectsartifactId>
            <version>${spring.version}version>
        dependency>

        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-expressionartifactId>
            <version>${spring.version}version>
        dependency>

        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-txartifactId>
            <version>${spring.version}version>
        dependency>

        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-testartifactId>
            <version>${spring.version}version>
        dependency>
        

        
        <dependency>
            <groupId>jstlgroupId>
            <artifactId>jstlartifactId>
            <version>1.2version>
        dependency>

        <dependency>
            <groupId>javax.servletgroupId>
            <artifactId>javax.servlet-apiartifactId>
            <version>3.1.0version>
        dependency>

        <dependency>
            <groupId>taglibsgroupId>
            <artifactId>standardartifactId>
            <version>1.1.2version>
        dependency>

        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-webartifactId>
            <version>${spring.version}version>
        dependency>

        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-webmvcartifactId>
            <version>${spring.version}version>
        dependency>

        <dependency>
            <groupId>com.fasterxml.jackson.coregroupId>
            <artifactId>jackson-databindartifactId>
            <version>2.7.4version>
        dependency>
        

        
        <dependency>
            <groupId>mysqlgroupId>
            <artifactId>mysql-connector-javaartifactId>
            <version>5.1.38version>
            <scope>runtimescope>
        dependency>

        <dependency>
            <groupId>com.alibabagroupId>
            <artifactId>druidartifactId>
            <version>1.0.20version>
        dependency>

        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-jdbcartifactId>
            <version>${spring.version}version>
        dependency>

        <dependency>
            <groupId>org.mybatisgroupId>
            <artifactId>mybatisartifactId>
            <version>3.4.0version>
        dependency>

        <dependency>
            <groupId>org.mybatisgroupId>
            <artifactId>mybatis-springartifactId>
            <version>1.3.0version>
        dependency>

        <dependency>
            <groupId>redis.clientsgroupId>
            <artifactId>jedisartifactId>
            <version>2.8.0version>
        dependency>
        <dependency>
            <groupId>org.springframework.datagroupId>
            <artifactId>spring-data-redisartifactId>
            <version>1.6.4.RELEASEversion>
        dependency>

        <dependency>
            <groupId>com.dyuproject.protostuffgroupId>
            <artifactId>protostuff-coreartifactId>
            <version>1.0.8version>
        dependency>

        <dependency>
            <groupId>com.dyuproject.protostuffgroupId>
            <artifactId>protostuff-runtimeartifactId>
            <version>1.0.8version>
        dependency>
        
    dependencies>
    
    
    <build>
        <finalName>${project.artifactId}_${project.version}_${maven.build.timestamp}finalName>
        <resources>
            <resource>
                
                <directory>src/main/resourcesdirectory>
                
                <filtering>truefiltering>
            resource>
        resources>
        <plugins>
            <plugin>
                <artifactId>maven-compiler-pluginartifactId>
                <version>2.3.2version>
                <configuration>
                    <source>1.8source>
                    <target>1.8target>
                configuration>
            plugin>
            <plugin>
                <groupId>org.apache.maven.pluginsgroupId>
                <artifactId>maven-war-pluginartifactId>
                <version>2.6version>
            plugin>
        plugins>
    build>
project>

(3)web.xml

<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">

    
    <servlet>
        <servlet-name>spring-dispatcherservlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
        
        <init-param>
            <param-name>contextConfigLocationparam-name>
            <param-value>classpath:spring/spring-*.xmlparam-value>
        init-param>
        <load-on-startup>1load-on-startup>
    servlet>
    <servlet-mapping>
        <servlet-name>spring-dispatcherservlet-name>
        
        <url-pattern>/url-pattern>
    servlet-mapping>

    
    <servlet>
        <servlet-name>DruidStatViewservlet-name>
        <servlet-class>com.alibaba.druid.support.http.StatViewServletservlet-class>
    servlet>
    <servlet-mapping>
        <servlet-name>DruidStatViewservlet-name>
        <url-pattern>/druid/*url-pattern>
    servlet-mapping>

    <filter>
        <filter-name>DruidWebStatFilterfilter-name>
        <filter-class>com.alibaba.druid.support.http.WebStatFilterfilter-class>
        <init-param>
            <param-name>exclusionsparam-name>
            <param-value>*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*param-value>
        init-param>
    filter>
    <filter-mapping>
        <filter-name>DruidWebStatFilterfilter-name>
        <url-pattern>/*url-pattern>
    filter-mapping>

web-app>

上面主要配置了DispatcherServlet，这是非常重要的，还有配置了Druid，以后我们就可以通过访问:youurl+/druid看到一些监控数据了。

(4)接下来我们就要在spring文件夹里面配置了，先配置spring-dao.xml文件，这里主要配置：数据库连接参数，连接池，SqlSessionFactory对象（mybatis），扫描dao层接口，动态实现dao接口
spring-dao.xml

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd 
        http://www.springframework.org/schema/context 
        http://www.springframework.org/schema/context/spring-context.xsd"
>

    

    
    <context:property-placeholder location="classpath:jdbc.properties" ignore-unresolvable="true"/>

    
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" 
            init-method="init" destroy-method="close">
        <property name="driverClassName" value="${jdbc.driverClassName}" />
        <property name="url" value="${jdbc.url}" />
        <property name="username" value="${jdbc.username}" />
        <property name="password" value="${jdbc.password}" />

           
        <property name="initialSize" value="${druid.pool.size.init}" />  
        <property name="minIdle" value="${druid.pool.size.min}" />   
        <property name="maxActive" value="${druid.pool.size.max}" />  

        
        <property name="filters" value="wall,stat" /> 
    bean>


    
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        
        <property name="dataSource" ref="dataSource"/>
        
        <property name="configLocation" value="classpath:mybatis-config.xml"/>
        
        <property name="typeAliasesPackage" value="com.pretty.ssm.entity"/>
        
        <property name="mapperLocations" value="classpath:mapper/*.xml"/>
    bean>

    
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
        
        <property name="basePackage" value="com.pretty.ssm.dao"/>
    bean>

beans>

这里千万别忘记配置一下jdbc.properties

jdbc.driverClassName=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://127.0.0.1:3306/pretty_ssm?useUnicode=true&characterEncoding=UTF-8&useSSL=false
jdbc.username=root
jdbc.password=shaoqing

druid.pool.size.max=20
druid.pool.size.min=3
druid.pool.size.init=3

上面useSSL=false一定要下，或者true，如果你用的是mysql高版本

接下来是另外一个套餐，mybatis-config.xml

<configuration>
    
    <settings>
        
        <setting name="useGeneratedKeys" value="true"/>
        
        <setting name="useColumnLabel" value="true"/>
        
        <setting name="mapUnderscoreToCamelCase" value="true"/>
    settings>
configuration>

(5)配置完了DAO层，接下来就是service层了。在spring中新建spring-service.xml文件。需要的工作有：扫描service包所有注解 @Service；配置事务管理器，把事务管理交由spring来完成；配置基于注解的声明式事务，可以直接在方法上@Transaction

spring-service.xml

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="
        http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/aop
        http://www.springframework.org/schema/aop/spring-aop.xsd
        http://www.springframework.org/schema/tx
        http://www.springframework.org/schema/tx/spring-tx.xsd">

    
    <context:component-scan base-package="com.pretty.ssm.service"/>

    
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource">property>
    bean>

    
    <tx:annotation-driven transaction-manager="transactionManager"/>

beans>

(6)配置web层，在spring文件夹新建spring-web.xml，需要的工作有：开启SpringMVC注解模式，可以使用@RequestMapping，@PathVariable，@ResponseBody等；对静态资源处理，如js，css，jpg等；配置jsp 显示ViewResolver；扫描web层 @Controller

spring-web.xml

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/mvc 
        http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd">


    
    <context:component-scan base-package="com.pretty.ssm.aop"/>
    
    <aop:aspectj-autoproxy proxy-target-class="true" />

    
    <mvc:annotation-driven/>

    
    <mvc:default-servlet-handler/>

    
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
        <property name="prefix" value="/WEB-INF/jsp/"/>
        <property name="suffix" value=".jsp"/>
    bean>

    
    <context:component-scan base-package="com.pretty.ssm.web"/>

beans>

(7)接下来来做个小实例
首先新建一个数据库，命名为pretty_ssm,然后导入sql文件夹下面的sql文件，接着在entity层下面添加一个实体User,然后在dao层下面新建一个UserDao接口，接着在mapper文件夹下面新建UserDao.xml，编程相关的sql语句。然后在service层新建UserService接口以及实现类了，这些相关代码我都放在git（实例代码）上面了，可以借鉴着写，喜欢记得给个星。
接下来就是验证的时刻了，访问http://localhost:8080/yourproject/user/list,如果能正常启动并且看到json数据，那么说明配置完成。

跑不起来的看这里
注意：如果本地没有安装redis的，个人建议安装，这确实是个好东西，如果实在不想安装，那么就不要导入spring-redis.xml，UserServiceImpl文件中的getUserList中，去掉跟redis相关的代码。

(8)这个项目只是想当作一个脚手架，以后需要可以直接使用，而且是为了后面搭建一个高可用的分布式架构做准备，所以这里牵扯到了redis，接下来将讲解redis缓存和redis sentinel高可用方案，而且是基于docker来实现

最后再放一下代码地址，以防有些人找不到
ssm框架代码