使用IDEA搭建SSM框架

使用IDEA搭建SSM(spring+springmvc+mybatis)框架

新建Maven项目，选择从原型创建，选择org.apache.maven.archetypes:maven-archetype-webapp

填写项目名，坐标等，最后点击完成，等待一段时间项目创建完成。

创建完成后引入jar包：pom.xml

<?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.ice</groupId>
  <artifactId>sport-shop</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>war</packaging>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
    <!--spring 版本-->
    <spring.version>5.2.5.RELEASE</spring.version>
    <!--mybatis 版本-->
    <mybatis.version>3.5.4</mybatis.version>
  </properties>

  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
      <scope>test</scope>
    </dependency>
    
<!--spring JAR包-->
    <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-oxm</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-webmvc</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-aop</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-test</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>${mybatis.version}</version>
    </dependency>

<!--    spring mybatis整合包 用于配置连接工厂 SQL session factory-->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>1.3.2</version>
    </dependency>

<!--mysql驱动-->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>5.1.49</version>
    </dependency>

<!--数据库连接池-->
    <dependency>
      <groupId>com.mchange</groupId>
      <artifactId>c3p0</artifactId>
      <version>0.9.5.5</version>
    </dependency>

    <!-- 日志 -->
    <dependency>
      <groupId>log4j</groupId>
      <artifactId>log4j</artifactId>
      <version>1.2.17</version>
    </dependency>
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-api</artifactId>
      <version>1.7.30</version>
    </dependency>
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-log4j12</artifactId>
      <version>1.7.30</version>
    </dependency>
<!--j2ee相关包 servlet jsp jstl-->
    <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>2.2</version>
      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
    </dependency>
     <dependency>
      <groupId>taglibs</groupId>
      <artifactId>standard</artifactId>
      <version>1.1.2</version>
    </dependency>
<!--分页 -->
    <dependency>
      <groupId>com.github.pagehelper</groupId>
      <artifactId>pagehelper</artifactId>
      <version>5.2.0</version>
    </dependency>

  </dependencies>

</project>

项目结构

编写配置：web.xml

<?xml version="1.0" encoding="UTF-8"?>
<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" >
<!--放在最顶上spring框架
  ContextLoaderListener监听器的作用是启动Web容器是，自动配置applicationcontext的配置信息。
  因为它实现了ServletContextLisener这个接口，在web.xml配置这个监听器，启动容器时，就会默认执行它实现的方法
-->

  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:spring/applicationContext.xml</param-value>
  </context-param>


  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>

<!--  springMVC的控制中心-->
  <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:springMVC/springMVC-servlet.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
    <async-supported>true</async-supported>
  </servlet>
  
  <servlet-mapping>
    <servlet-name>springMVC</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>

<!--  防止乱码 requestsSetChrarater-->
  <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>


</web-app>

编写spring配置文件applicationContext.xml：

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

<!--    启动注解 springIOC 除了controller contronllerAdvice 其他的都注入-->
    <context:component-scan base-package="com.ice">
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>

<!--  1、创建数据源对象-->
    <context:property-placeholder location="classpath:properties/jdbc.properties"/>

    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${jdbc.driver}"></property>
        <property name="jdbcUrl" value="${jdbc.url}"></property>
        <property name="user" value="${jdbc.username}"></property>
        <property name="password" value="${jdbc.password}"></property>
    </bean>

<!--    2、配置SqlSessionFactory对象， 代表数据库 数据库连接池-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">

<!--        注入数据库连接池-->
        <property name="dataSource" ref="dataSource"/>

<!--        配置MyBatis全局配置文件：mybatis-config.xml-->
        <property name="configLocation" value="classpath:mybatis/mybatis-config.xml"/>

<!--        扫描sql配置文件：mapper需要的xml文件-->
        <property name="mapperLocations" value="classpath:mapper/*.xml"/>
    </bean>
<!--    配置扫描Dao接口包，根据dao接口找到Mapper文件，用动态代理模式生成Dao的实现对象，注入到spring容器中-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!--注入sqlSessionFactory-->
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
        <!--给出需要扫描Dao接口包-->
        <property name="basePackage" value="com.ice.dao"/>
    </bean>

    <!--3、配置事务管理器-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"></property>
    </bean>

<!--    开启事务注解-->
    <tx:annotation-driven transaction-manager="transactionManager"></tx:annotation-driven>


</beans>

编写springMVC配置springMVC-servlet.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: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.xsd
       http://www.springframework.org/schema/mvc
       http://www.springframework.org/schema/mvc/spring-mvc.xsd
       http://www.springframework.org/schema/tx
       http://www.springframework.org/schema/tx/spring-tx.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context.xsd">

<!--    配置注解驱动 可以将request参数与绑定到controller参数上-->
    <mvc:annotation-driven/>

<!--    对模型视图名称的解析，即在模型视图名称添加前缀（如果最后一个还是表示文件夹，则最后的斜杠不要漏了）使用JSP-->
<!--    默认的视图解析器，在上边的解析错误时使用（默认使用html）-->
    <bean id="defaultViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
        <property name="prefix" value="/WEB-INF/views/"/>
        <property name="suffix" value=".jsp"/>
        <property name="exposeContextBeansAsAttributes" value="true"/>
    </bean>
<!--    自动扫描装配 只扫描controller controllerAdvice-->
    <context:component-scan base-package="com.ice" use-default-filters="false">
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>

<!--    1、静态资源会调用默认的servlet处理，不会显示404-->
    <mvc:default-servlet-handler/>

</beans>

编写mybatis配置文件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>


    <settings>
        <setting name="mapUnderscoreToCamelCase" value="true"/>
        <!-- 打印查询语句 -->
        <setting name="logImpl" value="LOG4J" />
        <!-- 控制全局缓存（二级缓存）-->
<!--        <setting name="cacheEnabled" value="true"/>-->
        <!-- 延迟加载的全局开关。当开启时，所有关联对象都会延迟加载。默认 false  -->
<!--        <setting name="lazyLoadingEnabled" value="true"/>-->
        <!-- 当开启时，任何方法的调用都会加载该对象的所有属性。默认 false，可通过select标签的 fetchType来覆盖-->
<!--        <setting name="aggressiveLazyLoading" value="false"/>-->
        <!--  Mybatis 创建具有延迟加载能力的对象所用到的代理工具，默认JAVASSIST -->
        <!--<setting name="proxyFactory" value="CGLIB" />-->
        <!-- STATEMENT级别的缓存，使一级缓存，只针对当前执行的这一statement有效 -->
        <!--
                <setting name="localCacheScope" value="STATEMENT"/>
        -->
<!--        <setting name="localCacheScope" value="SESSION"/>-->
    </settings>

    <typeAliases>
<!--        <typeAlias alias="blog" type="com.wuzz.domain.Blog" />-->
        <package name="com.ice.entity"/>
    </typeAliases>

    <!--    <typeHandlers>
            <typeHandler handler="com.wuzz.type.MyTypeHandler"></typeHandler>
        </typeHandlers>-->

    <!-- 对象工厂 -->
    <!--    <objectFactory type="com.wuzz.objectfactory.GPObjectFactory">
            <property name="wuzz" value="666"/>
        </objectFactory>-->

       <plugins>
           <!--分页插件-->
            <plugin interceptor="com.github.pagehelper.PageInterceptor">
                <!--设置数据库类型-->
                <property name="helperDialect" value="mysql" />
            </plugin>
        </plugins>

<!--    <environments default="development">-->
<!--        <environment id="development">-->
<!--            <transactionManager type="JDBC"/>&lt;!&ndash; 单独使用时配置成MANAGED没有事务 &ndash;&gt;-->
<!--            <dataSource type="POOLED">-->
<!--                <property name="driver" value="${jdbc.driver}"/>-->
<!--                <property name="url" value="${jdbc.url}"/>-->
<!--                <property name="username" value="${jdbc.username}"/>-->
<!--                <property name="password" value="${jdbc.password}"/>-->
<!--            </dataSource>-->
<!--        </environment>-->
<!--    </environments>-->

<!--    <mappers>-->
<!--        <mapper resource="BlogMapper.xml"/>-->
<!--        <mapper resource="BlogMapperExt.xml"/>-->
<!--    </mappers>-->

</configuration>

数据库jdbc.properties:

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/blog?useUnicode=true&characterEncoding=utf-8
jdbc.username=root
jdbc.password=123456

日志配置：

#定义输出级别
log4j.rootLogger=INFO,Console,File

#定义日志输出目的地为控制台
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.Target=System.out
log4j.appender.console.Encoding=UTF-8

#可以灵活指定日志输出格式
log4j.appender.Console.layout=org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=[%c]-%m%n

log4j.logger.java.sql.Connection=debug
log4j.logger.java.sql.Statement=debug
log4j.logger.java.sql.PrepareStatement=debug

#显示sql日志的配置
log4j.logger.com.ice.dao=debug

编写实体类User进行测试

User.java

public class User {
    private Long id;
    private String nickname;
    private String username;
    private String password;
    private String email;
    private String avatar;
    private Integer type;
    private Date createTime;
    private Date updateTime;
    getter...
    setter
}

Usermapper.xml

<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">

<mapper namespace="com.ice.dao.UserDao">
    <select id="selectUser" resultType="user" parameterType="int">
        select * from t_user where id=#{id}
    </select>

</mapper>

UserController.java

@Controller
public class UserController {

    @Autowired
    UserService userService;

    @RequestMapping("/user")
    @ResponseBody
    public User getuser(){
        System.out.println("hello");
        return userService.selectUser(1);
    }

}

浏览器输入localhost:8088/sport-shop/user

框架搭建成功