利用maven搭建ssm框架，干货

太过爱你忘了你带给我的痛 2022-12-27 04:58 136阅读 0赞

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话不多说，直接上干货。  
1.所需环境  
IDE：IDEA，JDK版本：1.8，数据库：mysql5.7 　　启动方式：tomcat  
2.搭建项目  
2.1  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2JlaXhpc2h1bw_size_16_color_FFFFFF_t_70]  
2.2  
![在这里插入图片描述][20201208111154545.png]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2JlaXhpc2h1bw_size_16_color_FFFFFF_t_70 1]  
2.3  
![在这里插入图片描述][2020120811123587.png]  
完整目录结构：  
![在这里插入图片描述][20201208203304854.png]

3.导入依赖  
下面是需要在pom.xml文件中添加的依赖：

<properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>1.7</maven.compiler.source>
        <maven.compiler.target>1.7</maven.compiler.target>
        
        <junit.version>4.12</junit.version>
        <spring.version>4.1.3.RELEASE</spring.version>
        <mybatis.version>3.2.8</mybatis.version>
        <mybatis.spring.version>1.2.2</mybatis.spring.version>
        <mysql.version>5.1.32</mysql.version>
        <slf4j.version>1.6.4</slf4j.version>
        <jackson.version>2.4.2</jackson.version>
        <druid.version>1.0.9</druid.version>
        <jstl.version>1.2</jstl.version>
        <servlet-api.version>2.5</servlet-api.version>
        <jsp-api.version>2.0</jsp-api.version>
        <commons-lang3.version>3.3.2</commons-lang3.version>
        <jsqlparser.version>0.9.1</jsqlparser.version>
      </properties>
      
      <dependencies>
        
        <dependency>
          <groupId>org.apache.commons</groupId>
          <artifactId>commons-lang3</artifactId>
          <version>${
        commons-lang3.version}</version>
        </dependency>
        
        <dependency>
          <groupId>com.fasterxml.jackson.core</groupId>
          <artifactId>jackson-databind</artifactId>
          <version>${
        jackson.version}</version>
        </dependency>
        
        <dependency>
          <groupId>junit</groupId>
          <artifactId>junit</artifactId>
          <version>${
        junit.version}</version>
        </dependency>
        
        <dependency>
          <groupId>org.slf4j</groupId>
          <artifactId>slf4j-log4j12</artifactId>
          <version>${
        slf4j.version}</version>
        </dependency>
        
        <dependency>
          <groupId>org.mybatis</groupId>
          <artifactId>mybatis</artifactId>
          <version>${
        mybatis.version}</version>
        </dependency>
        <dependency>
          <groupId>org.mybatis</groupId>
          <artifactId>mybatis-spring</artifactId>
          <version>${
        mybatis.spring.version}</version>
        </dependency>
        
        <dependency>
          <groupId>mysql</groupId>
          <artifactId>mysql-connector-java</artifactId>
          <version>${
        mysql.version}</version>
        </dependency>
        
        <dependency>
          <groupId>com.alibaba</groupId>
          <artifactId>druid</artifactId>
          <version>${
        druid.version}</version>
        </dependency>
        
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-context</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-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-aspects</artifactId>
          <version>${
        spring.version}</version>
        </dependency>
        
        <dependency>
          <groupId>jstl</groupId>
          <artifactId>jstl</artifactId>
          <version>${
        jstl.version}</version>
        </dependency>
        <dependency>
          <groupId>javax.servlet</groupId>
          <artifactId>servlet-api</artifactId>
          <version>${
        servlet-api.version}</version>
          <scope>provided</scope>
        </dependency>
        <dependency>
          <groupId>javax.servlet</groupId>
          <artifactId>jsp-api</artifactId>
          <version>${
        jsp-api.version}</version>
          <scope>provided</scope>
        </dependency>
      </dependencies>
    
      <build>
        <resources>
          
          <resource>
            <directory>src/main/java</directory>
            <includes>
              <include>**/*.properties</include>
              <include>**/*.xml</include>
            </includes>
            <filtering>false</filtering>
          </resource>
          
          <resource>
            <directory>src/main/resources</directory>
            <includes>
              <include>**/*.properties</include>
              <include>**/*.xml</include>
            </includes>
            <filtering>false</filtering>
          </resource>
        </resources>
      </build>

4.配置文件  
4.1 db.properties是放置数据库以及数据池的数据：

driver=com.mysql.jdbc.Driver
    #在和mysql传递数据的过程中，使用unicode编码格式，并且字符集设置为utf-8
    url=jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=utf-8
    user=root
    password=root
    #password=123456
    
    minIdle=50
    maxIdle=45
    initialSize=5
    maxActive=100
    maxWait=100
    removeAbandonedTimeout=180
    removeAbandoned=true
    timeBetweenEvictionRunsMillis=60000
    testWhileIdle=true
    testOnBorrow=false
    testOnReturn=false

4.2log4j.properties是日志的相关配置：

# Global logging configuration
    log4j.rootLogger=DEBUG, stdout
    # Console output...
    log4j.appender.stdout=org.apache.log4j.ConsoleAppender
    log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
    log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n

4.3ApplicationContext.xml是Spring的配置文件：

<?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">
    
        
        <context:component-scan base-package="com.beixi.*"></context:component-scan>
    
        
        <context:property-placeholder location="classpath:db.properties" />
    
        
        <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
              destroy-method="close">
            <property name="url" value="${url}" />
            <property name="username" value="${user}" />
            <property name="password" value="${password}" />
            <property name="driverClassName" value="${driver}" />
            <property name="maxActive" value="10" />
            <property name="minIdle" value="5" />
        </bean>
    
        
        <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
            <property name="configLocation" value="classpath:mybatis-config.xml"></property>
            <property name="dataSource" ref="dataSource"></property>
        </bean>
    
        
        <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
            <property name="dataSource" ref="dataSource"/>
        </bean>
    
        
        <tx:advice id="Advice" transaction-manager="transactionManager">
            <tx:attributes>
                
                <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="drop*" propagation="REQUIRED" />
                <tx:method name="modify*" 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>
    
        
        <aop:config>
            <aop:advisor advice-ref="Advice" pointcut="execution(* com.beixi.service.*.*(..))" />
        </aop:config>
    </beans>

4.4mybatis-config.xml是mybatis的配置文件：

<?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>
            <package name="com.beixi.entity"/>
        </typeAliases>
        
        <mappers>
            <mapper resource="mappers/UserMapper.xml"/>
        </mappers>
      
    </configuration>

4.5SpringMvc.xml是springmvc的配置文件：

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
    <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/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">
    
        
        <context:component-scan base-package="com.beixi.*" />
        <mvc:annotation-driven />
    
    
        
        <mvc:resources mapping="/js/**" location="/WEB-INF/js/" />
        <mvc:resources mapping="/css/**" location="/WEB-INF/css/" />
        <mvc:resources mapping="/fonts/**" location="/WEB-INF/fonts/" />
        <mvc:resources mapping="/plugins/**" location="/WEB-INF/plugins/" />
        <mvc:resources mapping="images/**" location="/WEB-INF/images/" />
    
        
        <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
            
            <property name="prefix" value="/WEB-INF/"/>
            <property name="suffix" value=".jsp"/>
        </bean>
    
    </beans>

4.6接下来是web.xml的全局配置：

<?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>ssm</display-name>
      <welcome-file-list>
        <welcome-file>index.html</welcome-file>
        <welcome-file>index.htm</welcome-file>
        <welcome-file>index.jsp</welcome-file>
        <welcome-file>default.html</welcome-file>
        <welcome-file>default.htm</welcome-file>
        <welcome-file>default.jsp</welcome-file>
      </welcome-file-list>
    
    
      
      <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:ApplicationContext.xml</param-value>
      </context-param>
      <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
      </listener>
    
    
    
      
      <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.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>
    
      
      <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>

到此，ssm的环境基本算是搭建成功，接下来是要编码了。  
5.编写后台代码  
5.1数据库  
![在这里插入图片描述][20201208113355914.png]  
5.2实体类

public class User {
        
        int id;
        String name;
        String password;
       // 省略get/set方法
    }

5.3实体类映射文件（UserMapper.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">
    <mapper namespace="UserDao">
    
     <select id="selectById" resultType="User">
       select * from user where id=#{
        id}
     </select>
    </mapper>

5.4持久层（UserMapper）

@Repository
    public class UserMapper {
        
        @Resource
        private SqlSessionFactory sqlSessionFactory;
    
        public User selectById(int id) {
        
            SqlSession sqlSession = sqlSessionFactory.openSession();
            return sqlSession.selectOne("UserDao.selectById", id);
        }
    }

5.5业务层（UserService）

@Service
    public class UserService {
        
        @Resource
        UserMapper userMapper;
        public User selectById(int id){
        
    
            return userMapper.selectById(id);
        }
    }

5.6控制层（UserController）

@Controller
    public class UserController {
        
        @Resource
        UserService service;
    
        @RequestMapping("/selectById/{id}")
        public String selectById(@PathVariable int id){
        
            User user = service.selectById(id);
            System.out.println(user);
            return null;
        }
    }

6.启动项目  
访问：http://localhost:8080/selectById/2  
完整目录：  
![在这里插入图片描述][20201208203334457.png]

专注于IT技术知识梳理，书写前沿技术文章！更多技术在这里慢慢探索吧，请关注杰哥 公众号！

![!\[在这里插入图片描述\](https://img-blog.csdnimg.cn/2020111620380146.png\#pic\_center][https_img-blog.csdnimg.cn_2020111620380146.png_pic_center]

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