干货来了！使用idea从零开始搭建一个良好的SSM框架（spring+springmvc+mybatis）

最新推荐文章于 2024-04-25 13:56:39 发布

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本文详细介绍了一个基于Spring、Spring MVC及MyBatis（SSM）框架的项目搭建过程，包括项目结构设计、配置文件编写及核心代码实现。

1、打开idea，直接new一个project。

选中maven一直next，需要输入的地方输入自己喜欢的名字即可！

2、新建好项目后直接删除src文件夹，新建两个目录service和web，并且分别放一个pom.xml文件。

3、修改3个pom.xml的内容，代码如下：

项目的pom.xml包含web和service两个模块：

<?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.river</groupId>
    <artifactId>good_ssm</artifactId>
    <packaging>pom</packaging>
    <version>1.0</version>

    <modules>
        <module>web</module>
        <module>service</module>
    </modules>
    
</project>

service的pom打成jar包：

<?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>

    <artifactId>service</artifactId>
    <parent>
        <artifactId>good_ssm</artifactId>
        <groupId>com.river</groupId>
        <version>1.0</version>
    </parent>
    <packaging>jar</packaging>

</project>

web的pom.xml打成war包，并包含service.jar：

<?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>

    <artifactId>web</artifactId>
    <parent>
        <groupId>com.river</groupId>
        <artifactId>good_ssm</artifactId>
        <version>1.0</version>
    </parent>
    <packaging>war</packaging>

    <dependencies>
        <!--打包的时候包含service.jar-->
        <dependency>
            <groupId>com.river</groupId>
            <artifactId>service</artifactId>
            <version>1.0</version>
        </dependency>
    </dependencies>
</project>

5、定义目录属性（java文件夹定义为Sources Root，resources文件夹定义为Resources Root）

6、加入web.xml并配置tomcat

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_4_0.xsd"
         version="4.0">
    <display-name>good_ssm 1.0</display-name>

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

</web-app>

再new一个index.jsp就可以运行和访问浏览器了！

7、加入spring、springmvc和mybatis的依赖（我整理好了，缺一不可，有相应的说明！）

8、web.xml中配置spring监听器和springmvc

9、加入spring配置文件并在web.xml中配置路径

10、新建Controller层、Service层和Dao层以及mybatis的持久层映射文件

11、数据库密码加密显示，框架搭建完成！

最终形成的目录如下：

下面开始粘贴代码，也可以下载我已经搭建好的项目！地址：https://download.youkuaiyun.com/download/river66/11065819。觉得有用的兄弟可以点个赞吗^_^

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_4_0.xsd"
         version="4.0">

    <display-name>good_ssm 1.0</display-name>
    <!-- spring配置文件 -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring/application-*.xml</param-value>
    </context-param>

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

    <!-- 配置Spring MVC过滤器 -->
    <servlet>
        <servlet-name>spring-mvc</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring/mvc-servlet.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>spring-mvc</servlet-name>
        <url-pattern>*.do</url-pattern>
    </servlet-mapping>
    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>
</web-app>

application-context.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"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
	   http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
       ">

    <!-- 配置注解扫描 -->
    <context:annotation-config />

    <!-- 自动扫描的包名 -->
    <context:component-scan base-package="com.good.frame" />


    <!-- 加载配置文件 -->
    <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="ignoreUnresolvablePlaceholders" value="true"/>
        <property name="locations">
            <list>
                <value>classpath:config.properties</value>
            </list>
        </property>
    </bean>
</beans>

application-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"
       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-3.0.xsd ">

    <!--根据@RequestMapping注解进行映射解析-->
    <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping">
        <property name="order" value="1"/>
    </bean>
    <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">
        <property name="webBindingInitializer" ref="webBindingInitializer"/>
        <property name="messageConverters">
            <list>
                <!-- Json消息转换-->
                <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
                    <property name="supportedMediaTypes">
                        <list>
                            <value>text/html;charset=UTF-8</value>
                            <value>application/json;charset=UTF-8</value>
                        </list>
                    </property>
                    <property name="objectMapper">
                        <bean class="com.good.frame.util.FormatObjectMapper"/>
                    </property>
                </bean>
            </list>
        </property>
    </bean>
    <bean id="webBindingInitializer" class="org.springframework.web.bind.support.ConfigurableWebBindingInitializer">
        <property name="conversionService" ref="conversionService"/>
        <!--<property name="validator" ref="validator"/>-->
    </bean>
    <bean id="conversionService" class="org.springframework.format.support.FormattingConversionServiceFactoryBean">
        <property name="converters">
            <set>

            </set>
        </property>
    </bean>

    <!-- Multipart文件上传解析 -->
    <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <property name="defaultEncoding" value="UTF-8"/>
        <property name="maxUploadSize" value="2000000"/>
    </bean>
</beans>

application-mybatis.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:tx="http://www.springframework.org/schema/tx" xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
	   http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd"
       default-lazy-init="true" default-autowire="byName">

    <!-- 数据源 -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close">
        <property name="driverClass" value="${${database.type}.jdbc.driverClassName}"/>
        <property name="jdbcUrl" value="${${database.type}.jdbc.url}"/>
        <property name="properties" ref="dataSourceProperties"/>
        <!--<property name="autoCommitOnClose" value="false"/>-->
        <property name="checkoutTimeout" value="${cpool.checkoutTimeout}"/>
        <property name="initialPoolSize" value="${cpool.minPoolSize}"/>
        <property name="minPoolSize" value="${cpool.minPoolSize}"/>
        <property name="maxPoolSize" value="${cpool.maxPoolSize}"/>
        <property name="maxIdleTime" value="${cpool.maxIdleTime}"/>
        <property name="acquireIncrement" value="${cpool.acquireIncrement}"/>
        <property name="maxIdleTimeExcessConnections" value="${cpool.maxIdleTimeExcessConnections}"/>
        <property name="idleConnectionTestPeriod" value="${cpool.idleConnectionTestPeriod}"/>
        <property name="testConnectionOnCheckout" value="true"/>
    </bean>

    <bean id="dataSourceProperties" class="com.good.frame.factory.PropertiesEncryptFactoryBean">
        <property name="properties">
            <props>
                <prop key="user">${jdbc.username}</prop>
                <prop key="password">${jdbc.password}</prop>
            </props>
        </property>
    </bean>

    <!--基于注解的事务管理-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
        <property name="globalRollbackOnParticipationFailure" value="false" /> <!--指定此参数为false-->
    </bean>

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

    <bean id="lazySqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <property name="configLocation" value="classpath:mybatis/mybatis-config.xml"/>
        <!-- 当mybatis的xml文件和mapper接口不在相同包下时，需要用mapperLocations属性指定xml文件的路径。
             *是个通配符，代表所有的文件，**代表所有目录下 -->
        <property name="mapperLocations" value="classpath:mapper/**/*.xml" />
    </bean>

    <!-- 扫描mybatis映射接口类 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.good.frame.dao"/>
        <property name="sqlSessionFactoryBeanName" value="lazySqlSessionFactory"/>
    </bean>
</beans>

mvc-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"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">

</beans>

config.properties

#DB type
database.type=mysql

mysql.jdbc.driverClassName=com.mysql.jdbc.Driver
mysql.jdbc.url=jdbc:mysql://localhost:3306/ssm?useUnicode=true&characterEncoding=utf8

jdbc.username=3B73289CE2F67296
jdbc.password=3B73289CE2F67296

#POOL CONFIG
cpool.checkoutTimeout=60000
cpool.minPoolSize=2
cpool.maxPoolSize=200
cpool.maxIdleTime=60
cpool.maxIdleTimeExcessConnections=60
cpool.acquireIncrement=2
cpool.idleConnectionTestPeriod=5000

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>
    <typeAliases>
        <typeAlias alias="user" type="com.good.frame.bean.User"/>
    </typeAliases>
</configuration>

User.xml

<?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">

<!-- 用户相关信息处理 -->
<mapper namespace="com.good.frame.dao.IUserDao">
    <resultMap type="user" id="userMap">
        <id property="id" column="id"/>
        <result property="userName" column="user_name"/>
        <result property="password" column="password"/>
    </resultMap>
    <insert id="insertUser" parameterType="user">
        insert into user (user_name,password)
        values (#{userName},#{password})
    </insert>
</mapper>

下面是java代码：

User.java

public class User {
    private String userName;
    private String password;
    //省略了getter/setter/constructor
}

UserController.java

@Controller
@RequestMapping(value = "/user", method = {RequestMethod.POST, RequestMethod.GET})
public class UserController {

    @Autowired
    UserService userService;

    @ResponseBody
    @RequestMapping("/addUser.do")
    public String addUser(String userName, String password) {
        if(userName == null && password == null)
            return "参数错误！";
        User user = new User(userName, userName);
        boolean isSuccess = userService.addUser(user);
        if (isSuccess)
            return "添加用户成功！";
        else
            return "添加失败！";
    }
}

IUserService.java

public interface IUserService {
    boolean addUser(User user);
}

UserService.java

@Service
public class UserService implements IUserService {

    @Autowired
    IUserDao userDao;

    @Override
    public boolean addUser(User user) {
        int flag = userDao.insertUser(user);
        if(flag == 0)
            return false;
        else
            return true;
    }
}

IUserDao.java

public interface IUserDao {
    int insertUser(User user);
}

PropertiesEncryptFactoryBean.java

public class PropertiesEncryptFactoryBean implements FactoryBean {
    private Properties properties;
    private static String KEY = "river";

    public Object getObject() throws Exception {
        return getProperties();
    }

    public Class getObjectType() {
        return Properties.class;
    }

    public boolean isSingleton() {
        return true;
    }

    public Properties getProperties() {
        return properties;
    }

    public void setProperties(Properties inProperties) {
        this.properties = inProperties;
        properties.put("user", decrypt(properties.getProperty("user")));
        properties.put("password", decrypt(properties.getProperty("password")));
    }

    /** 解密 */
    private static String decrypt(String encryptedData) {
        return DESUtil.getInstance().decode(encryptedData, KEY);
    }
}

DESUtil.java

public class DESUtil {
    public static final String DES = "DES";
    public static final String charset = "UTF-8";
    public static final int keysizeDES = 0;

    private static DESUtil instance;

    private DESUtil() {
    }

    // 单例
    public static DESUtil getInstance() {
        if (instance == null) {
            synchronized (DESUtil.class){
                if (instance == null) {
                    instance = new DESUtil();
                }
            }
        }
        return instance;
    }

    /**
     * 使用 DES 进行加密
     */
    public String encode(String res, String key) {
        return keyGeneratorES(res, DES, key, keysizeDES, true);
    }

    /**
     * 使用 DES 进行解密
     */
    public String decode(String res, String key) {
        return keyGeneratorES(res, DES, key, keysizeDES, false);
    }

    // 使用KeyGenerator双向加密，DES/AES，注意这里转化为字符串的时候是将2进制转为16进制格式的字符串，不是直接转，因为会出错
    private String keyGeneratorES(String res, String algorithm, String key, int keysize, boolean isEncode) {
        try {
            KeyGenerator kg = KeyGenerator.getInstance(algorithm);
            if (keysize == 0) {
                byte[] keyBytes = charset == null ? key.getBytes() : key.getBytes(charset);
                kg.init(new SecureRandom(keyBytes));
            } else if (key == null) {
                kg.init(keysize);
            } else {
                byte[] keyBytes = charset == null ? key.getBytes() : key.getBytes(charset);
                kg.init(keysize, new SecureRandom(keyBytes));
            }
            SecretKey sk = kg.generateKey();
            SecretKeySpec sks = new SecretKeySpec(sk.getEncoded(), algorithm);
            Cipher cipher = Cipher.getInstance(algorithm);
            if (isEncode) {
                cipher.init(Cipher.ENCRYPT_MODE, sks);
                byte[] resBytes = charset == null ? res.getBytes() : res.getBytes(charset);
                return parseByte2HexStr(cipher.doFinal(resBytes));
            } else {
                cipher.init(Cipher.DECRYPT_MODE, sks);
                return new String(cipher.doFinal(parseHexStr2Byte(res)));
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    // 将二进制转换成16进制
    private String parseByte2HexStr(byte buf[]) {
        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < buf.length; i++) {
            String hex = Integer.toHexString(buf[i] & 0xFF);
            if (hex.length() == 1) {
                hex = '0' + hex;
            }
            sb.append(hex.toUpperCase());
        }
        return sb.toString();
    }

    // 将16进制转换为二进制
    private byte[] parseHexStr2Byte(String hexStr) {
        if (hexStr.length() < 1)
            return null;
        byte[] result = new byte[hexStr.length() / 2];
        for (int i = 0; i < hexStr.length() / 2; i++) {
            int high = Integer.parseInt(hexStr.substring(i * 2, i * 2 + 1), 16);
            int low = Integer.parseInt(hexStr.substring(i * 2 + 1, i * 2 + 2), 16);
            result[i] = (byte) (high * 16 + low);
        }
        return result;
    }
}

FormatObjectMapper.java

public class FormatObjectMapper extends ObjectMapper {
    public FormatObjectMapper()
    {
        SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        this.setDateFormat(sdf);
    }
}

最后是3个pom.xml文件：

good_ssm——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.river</groupId>
    <artifactId>good_ssm</artifactId>
    <packaging>pom</packaging>
    <version>1.0</version>

    <modules>
        <module>web</module>
        <module>service</module>
    </modules>

    <properties>
        <spring.version>4.3.14.RELEASE</spring.version>
        <aspectj.version>1.6.11</aspectj.version>
        <jackson.version>2.7.4</jackson.version>
    </properties>
    <dependencyManagement>
        <dependencies>
            <!--spring的依赖包主要是以下7个-->
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-core</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-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>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-expression</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-aop</artifactId>
                <version>${spring.version}</version>
            </dependency>

            <!--RequestMappingHandlerAdapter会依赖到以下三个-->
            <dependency>
                <groupId>com.fasterxml.jackson.core</groupId>
                <artifactId>jackson-core</artifactId>
                <version>${jackson.version}</version>
            </dependency>
            <dependency>
                <groupId>com.fasterxml.jackson.core</groupId>
                <artifactId>jackson-annotations</artifactId>
                <version>${jackson.version}</version>
            </dependency>
            <dependency>
                <groupId>com.fasterxml.jackson.core</groupId>
                <artifactId>jackson-databind</artifactId>
                <version>${jackson.version}</version>
            </dependency>

            <!-- multipartResolver需要用到以下三个 -->
            <dependency>
                <groupId>commons-fileupload</groupId>
                <artifactId>commons-fileupload</artifactId>
                <version>1.3.1</version>
            </dependency>
            <dependency>
                <groupId>commons-io</groupId>
                <artifactId>commons-io</artifactId>
                <version>2.4</version>
            </dependency>
            <dependency>
                <groupId>commons-logging</groupId>
                <artifactId>commons-logging</artifactId>
                <version>1.2</version>
            </dependency>

            <!--spring+mybatis-->
            <dependency>
                <groupId>org.mybatis</groupId>
                <artifactId>mybatis</artifactId>
                <version>3.4.6</version>
            </dependency>
            <dependency>
                <groupId>org.mybatis</groupId>
                <artifactId>mybatis-spring</artifactId>
                <version>1.3.2</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-tx</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>com.mchange</groupId>
                <artifactId>c3p0</artifactId>
                <version>0.9.5.2</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-jdbc</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>5.1.38</version>
            </dependency>

        </dependencies>
    </dependencyManagement>
</project>

web——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>

    <artifactId>web</artifactId>
    <parent>
        <groupId>com.river</groupId>
        <artifactId>good_ssm</artifactId>
        <version>1.0</version>
    </parent>
    <packaging>war</packaging>

    <dependencies>
        <!--打包的时候包含service.jar-->
        <dependency>
            <groupId>com.river</groupId>
            <artifactId>service</artifactId>
            <version>1.0</version>
        </dependency>
        <!--@ResponseBody、@RequestMapping和@Controller等都用到这个依赖-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
        </dependency>
        <!--RequestMappingHandlerMapping依赖这个-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
        </dependency>
        <!-- multipartResolver需要依赖这个 -->
        <dependency>
            <groupId>commons-fileupload</groupId>
            <artifactId>commons-fileupload</artifactId>
        </dependency>
        <!--mybatis-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
        </dependency>
        <dependency>
            <groupId>com.mchange</groupId>
            <artifactId>c3p0</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
    </dependencies>
</project>

service——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>

    <artifactId>service</artifactId>
    <parent>
        <artifactId>good_ssm</artifactId>
        <groupId>com.river</groupId>
        <version>1.0</version>
    </parent>
    <packaging>jar</packaging>

    <dependencies>
        <!--@ResponseBody、@RequestMapping和@Controller等都用到这个依赖-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
        </dependency>

        <!--RequestMappingHandlerAdapter会依赖到这个-->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
        </dependency>
        <!--spring+mybatis-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <!--Compiler插件编译时和编译后运行的JVM版本目前默认的设置为1.5，使用这个插件指定JVM编译版本-->
            <!--如果没有加这个会提示：Warning:java: 源值1.5已过时, 将在未来所有发行版中删除-->
            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.7</source>
                    <target>1.7</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

maven依赖的仓库：https://mvnrepository.com/search?q=spring，可以自行下载需要的版本！

有什么疑问的都可以评论留言，我都会看的！如果有什么问题会误导大家的，还请大神们指出来，我好更正过来！

如果对您有用的话赞一下呗！谢谢啦！