IDEA+Maven+SSM+MyBatis整合，超详细！！

前言：工作之余就像突然复习一下SSM+Maven这个框架，多多复习才能记得牢固。

1，创建一个maven项目

2.GroupId和ArtifactId，因为关系后面配置文件的包地址问题，建议记一下GroupId

3.添加archetypeCatalog  = internal，然后一直next一直到finsh。

4.添加框架需要的包，在pom.xml里

<!-- 声明版本 -->
  <properties>
    <servlet.version>3.1.0</servlet.version>
    <jsp.version>2.3.1</jsp.version>
    <jstl.version>1.2</jstl.version>
    <mybatis.version>3.4.6</mybatis.version>
    <mybatis-spring.version>1.3.2</mybatis-spring.version>
    <spring.version>4.3.13.RELEASE</spring.version>
    <mysql.version>5.1.40</mysql.version>
    <log4j.version>1.2.17</log4j.version>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.7</maven.compiler.source>
    <maven.compiler.target>1.7</maven.compiler.target>
    <jackson.version>2.5.4</jackson.version>
  </properties>

  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
      <scope>test</scope>
    </dependency>

    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-core</artifactId>
      <version>${jackson.version}</version>
    </dependency>
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-databind</artifactId>
      <version>${jackson.version}</version>
    </dependency>

    <!-- 加入servlet的依赖 -->
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>${servlet.version}</version>
      <scope>provided</scope>
    </dependency>
    <!-- 加入jsp的依赖 -->
    <dependency>
      <groupId>javax.servlet.jsp</groupId>
      <artifactId>javax.servlet.jsp-api</artifactId>
      <version>${jsp.version}</version>
      <scope>provided</scope>
    </dependency>
    <!-- 加入jstl的依赖 -->
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>jstl</artifactId>
      <version>${jstl.version}</version>
    </dependency>
    <!-- 加入mybtais的依赖 -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>${mybatis.version}</version>
    </dependency>
    <!-- 加入mybtais-spring的依赖 -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>${mybatis-spring.version}</version>
    </dependency>
    <!-- 加入spring的依赖 -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-aspects</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-aop</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-core</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-expression</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-tx</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <!-- 加入springmvc的依赖 -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <!-- 加入mysql的依赖 -->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>${mysql.version}</version>
    </dependency>
    <!-- 加入log4j的依赖 -->
    <dependency>
      <groupId>log4j</groupId>
      <artifactId>log4j</artifactId>
      <version>${log4j.version}</version>
    </dependency>


    <dependency>
      <groupId>org.apache.commons</groupId>
      <artifactId>commons-dbcp2</artifactId>
      <version>2.5.0</version>
    </dependency>

  </dependencies>

5.在pom.xml下面的build里面添加，网上给的答案是，有这个可以防止扫描不到.properties和.xml文件

   <resources>
      <resource>
        <directory>src/main/java</directory>
        <includes>
          <include>**/*.properties</include>
          <include>**/*.xml</include>
        </includes>
        <filtering>false</filtering>
      </resource>
    </resources>

6.创建项目的架构，建议先把各个里面的文件先创建出来。方便配置文件时候可以寻找到文件。尤其是mapper里面的.xml文件

7.然后是配置文件

7.1：applicationContext.xml

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       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-4.3.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context-4.3.xsd
        http://www.springframework.org/schema/aop
        http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
        http://www.springframework.org/schema/tx
        http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">
    <!--读取db.properties-->
    <context:property-placeholder location="classpath:config/db.properties"/>
    <!--配置数据源-->
    <bean id="dataSource" class="org.apache.commons.dbcp2.BasicDataSource">
        <!--数据库驱动-->
        <property name="driverClassName" value="${jdbc.driver}"/>
        <!--连接数据库的url-->
        <property name="url" value="${jdbc.url}"/>
        <!--连接数据库的用户名-->
        <property name="username" value="${jdbc.username}"/>
        <!--连接数据库的密码-->
        <property name="password" value="${jdbc.password}"/>
        <!--最大连接数-->
        <property name="maxTotal" value="${jdbc.maxTotal}"/>
        <!--最大空闲数-->
        <property name="maxIdle" value="${jdbc.maxIdle}"/>
        <!--初始化连接数-->
        <property name="initialSize" value="${jdbc.initialSize}"/>
    </bean>
    <!-- 事务管理器，依赖于数据源-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>
    <!--通知-->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <!--传播行为-->
            <tx:method name="save*" propagation="REQUIRED"/>
            <tx:method name="insert*" propagation="REQUIRED"/>
            <tx:method name="add*" propagation="REQUIRED"/>
            <tx:method name="create*" propagation="REQUIRED"/>
            <tx:method name="delete*" propagation="REQUIRED"/>
            <tx:method name="update*" propagation="REQUIRED"/>
            <tx:method name="find*" propagation="SUPPORTS" read-only="true"/>
            <tx:method name="select*" propagation="SUPPORTS" read-only="true"/>
            <tx:method name="get*" propagation="SUPPORTS" read-only="true"/>
        </tx:attributes>
    </tx:advice>
    <!--切面-->
    <aop:config>
        <aop:advisor advice-ref="txAdvice" pointcut="execution(* com.test.service.*.*(..))"/>
    </aop:config>

    <!--配置MyBatis工厂SqlSessionFactory-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!--注入数据源-->
        <property name="dataSource" ref="dataSource"/>
        <!--指定mapper文件的位置-->
        <property name="mapperLocations" value="classpath:mapper/*.xml"/>
        <!--指定MyBatis的核心配置文件-->
        <property name="configLocation" value="classpath:config/mybatis-config.xml"/>
    </bean>
    <!-- 接口开发,扫描 com.itheima.core.dao包 ，写在此包下的接口即可被扫描到 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.test.dao"/>
    </bean>
    <!-- 配置扫描@Service注解 -->
    <context:component-scan base-package="com.test.service"/>

</beans>

7.2：db.properties

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/mytest
jdbc.username=root
jdbc.password=123456
jdbc.maxTotal=30
jdbc.maxIdle=10
jdbc.initialSize=5

7.3：log4j.properties

log4j.rootLogger=DEBUG, Console
### 控制台的输出###
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.layout=org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=%d{ABSOLUTE} %-5p [%c{3}] %m%n
#log4j.appender.Console.layout.ConversionPattern=%d{ABSOLUTE} %-5p [%c] %m%n
###sql的打印###
log4j.logger.com.ibatis=DEBUG
log4j.logger.com.ibatis.common.jdbc.SimpleDataSource=DEBUG
log4j.logger.com.ibatis.common.jdbc.ScriptRunner=DEBUG
log4j.logger.com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate=DEBUG
log4j.logger.java.sql.Connection=DEBUG
log4j.logger.java.sql.Statement=DEBUG
log4j.logger.java.sql.PreparedStatement=DEBUG
log4j.logger.org.springframework=INFO

7.4：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>
    <!-- 别名定义 -->
    <typeAliases>
        <package name="com.test.dao" />
    </typeAliases>
</configuration>

7.5：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-4.2.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context-4.2.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd">
    <!-- 注解标签驱动开启-->
    <mvc:annotation-driven></mvc:annotation-driven>
    <mvc:default-servlet-handler />

    <context:annotation-config/>
    <!-- 静态资源映射 -->
    <mvc:resources location="/page/res/" mapping="/res/**"/>

    <!--视图-->
    <bean id="defaultViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver" p:order="1">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
        <property name="contentType" value="text/html" />
        <property name="prefix" value="/WEB-INF/page/jsp" />
        <property name="suffix" value=".jsp" />
    </bean>

    <!--避免IE执行AJAX时，返回JSON出现下载文件 -->
    <bean id="mappingJacksonHttpMessageConverter" class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
        <property name="supportedMediaTypes">
            <list>
                <value>text/html;charset=UTF-8</value>
            </list>
        </property>
    </bean>
    <!-- 启动SpringMVC的注解功能，完成请求和注解POJO的映射 -->
    <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
        <property name="messageConverters">
            <list>
                <ref bean="mappingJacksonHttpMessageConverter" /> <!-- JSON转换器 -->
            </list>
        </property>
    </bean>


    <mvc:annotation-driven>
        <mvc:message-converters>
            <bean class="org.springframework.http.converter.StringHttpMessageConverter"/>
            <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"/>
        </mvc:message-converters>
    </mvc:annotation-driven>

    <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <!-- 最大下载速度 -->
        <property name="maxUploadSize">
            <value>104857600</value>
        </property>
        <property name="maxInMemorySize">
            <value>2048</value>
        </property>
    </bean>
</beans>

7.6：springmvc-config.xml

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       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-4.3.xsd
    http://www.springframework.org/schema/mvc
    http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-4.3.xsd
    http://www.springframework.org/schema/aop
    http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
    http://www.springframework.org/schema/tx
    http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">
    <!-- 加载属性文件 -->
    <!--<context:property-placeholder location="classpath:config/resource.properties"/>-->
    <!-- 配置扫描器 -->
    <context:component-scan base-package="com.test.controller"/>
    <!-- 注解驱动：配置处理器映射器和适配器 -->
    <mvc:annotation-driven/>
    <!--配置静态资源的访问映射，此配置中的文件，将不被前端控制器拦截 -->
    <mvc:resources mapping="/js/**" location="/page/res/js/"/>
    <mvc:resources mapping="/css/**" location="/page/res/css/"/>
    <mvc:resources mapping="/image/**" location="/page/res/image/"/>
    <!-- 配置视图解释器ViewResolver -->
    <bean id="jspViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp/"/>
        <property name="suffix" value=".jsp"/>
    </bean>

    <!--&lt;!&ndash;配置拦截器&ndash;&gt;-->
    <!--<mvc:interceptors>-->
        <!--<mvc:interceptor>-->
            <!--<mvc:mapping path="/**"/>-->
            <!--<bean class="com.ma.core.interceptor.LoginInterceptor"/>-->
        <!--</mvc:interceptor>-->
    <!--</mvc:interceptors>-->

</beans>

7.7：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_3_0.xsd"
         id="WebApp_ID" version="3.0">
  <display-name>manager</display-name>


  <!-- 配置加载Spring文件的监听器-->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:/config/applicationContext.xml</param-value>
  </context-param>
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>

  <!-- 编码过滤器 -->
  <filter>
    <filter-name>encoding</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>
  </filter>
  <filter-mapping>
    <filter-name>encoding</filter-name>
    <url-pattern>/</url-pattern>
  </filter-mapping>

  <!-- 配置Spring MVC前端核心控制器 -->
  <servlet>
    <servlet-name>MVC</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:/config/springmvc-config.xml</param-value>
    </init-param>
    <!-- 配置服务器启动后立即加载Spring MVC配置文件 -->
    <load-on-startup>1</load-on-startup>
  </servlet>

  <servlet-mapping>
    <servlet-name>MVC</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>

  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
</web-app>

7.8：结束后检查一下各个文件里面有没有报红报错，如果有的话可能就是文件地址一类的，包地址不对，建议看一下。

8：新建数据库，注意数据库名字要和db文件里面的数据库名一样，我建的数据库mytest：

9.：然后编写UserMapper.xml，我这里写了两个很简单的sql语句。

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.test.dao.UserDao">
    <select id="getList" parameterType="com.test.model.User" resultType="com.test.model.User">
        SELECT * FROM t_user
     </select>

    <select id="getcount" resultType="java.lang.Integer">
        select count(userid) from t_user
    </select>
</mapper>

10：User实体类，创建get和set快捷键：alt+insert。

package com.test.model;

public class User {
    private String userid;
    private String username;
    private String password;
    private String phone;

    public String getUserid() {
        return userid;
    }

    public void setUserid(String userid) {
        this.userid = userid;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public String getPhone() {
        return phone;
    }

    public void setPhone(String phone) {
        this.phone = phone;
    }
}

11：UserDao接口

package com.test.dao;
import com.test.model.User;
import org.springframework.stereotype.Repository;
import java.util.List;

@Repository
public interface UserDao {

    public List<User> getList();

    int getcount();
}

12.UserService接口

package com.test.service;

import com.test.model.User;
import java.util.List;

public interface UserService {
    public List<User> getList();

    int getcount();
}

13：UserServiceImpl.要注意的是方法前面的注解@service

package com.test.service.impl;

import com.test.dao.UserDao;
import com.test.model.User;
import com.test.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class UserServiceImpl implements UserService {

    @Autowired
    private UserDao userDao;


    @Override
    public List<User> getList() {
        return userDao.getList();
    }

    @Override
    public int getcount() {
        return userDao.getcount();
    }


}

14：UserController.要注意是方法上面的一些注解@Controller，@RequestMapping等

package com.test.controller;

import com.test.model.User;
import com.test.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import java.util.HashMap;
import java.util.Map;

@Controller
@RequestMapping(value = "/user")
public class UserController {

    @Autowired
    private UserService userService;

    @RequestMapping(value = "/getlist")
    @ResponseBody
    public Map<String, Object> getlist(User user){
        HashMap<String,Object> map = new HashMap<String, Object>();
        map.put("limit",userService.getList() );
        map.put("offset",userService.getcount() );
        return map;
    }

}

15：代码已经简单的写完了，接下来配置tomcat：

这里要选择第二个。 

结束后选择Apply，这里建议选择第三个，这个选项可以修改jsp页面不用重启tomcat，否则的话修改jsp就得重启tomcat。结束然后apply。

 16：愉快的启动tomcat，我这里修改了index.jsp。所以是这样的，正常的是一个Hello Word。

 17：然后调用写的接口试一下：

18:很愉快的就这样结束了。 

总结：有一段时间没用这个框架，欢迎提一些改进的意见！