### **ssm父模块** 1.创建父工程 2.定义pom.xml 在父工程的pom.xml中抽取一些重复的配置的，比如：锁定jar包的版本、设置编译版本等。 ~~~ <?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>cn.li</groupId> <artifactId>ssm</artifactId> <version>1.0-SNAPSHOT</version> <modules> <module>ssm-bean</module> <module>ssm-dao</module> <module>ssm-service</module> <module>ssm-web</module> </modules> <packaging>pom</packaging> <!--版本锁定--> <properties> <pagehelper.version>5.0.0</pagehelper.version> <junit.version>4.12</junit.version> <mysql.version>5.1.41</mysql.version> <c3p0.version>0.9.1</c3p0.version> <json.version>2.8.8</json.version> <spring.version>4.3.7.RELEASE</spring.version> <mybatis.version>3.4.2</mybatis.version> <mybatis-spring.version>1.3.1</mybatis-spring.version> <servlet-api.version>3.0.1</servlet-api.version> <jsp-api.version>2.0</jsp-api.version> <jstl.version>1.2</jstl.version> </properties> <dependencyManagement> <dependencies> <!--引入pageHelper分页插件 有点像自己封装过的那个分页的bean ... --> <dependency> <groupId>com.github.pagehelper</groupId> <artifactId>pagehelper</artifactId> <version>${pagehelper.version}</version> </dependency> <!-- springmvc的jar 。。。 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <!-- 返回json字符串的支持 --> <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind --> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>${json.version}</version> </dependency> <!--JSR303数据校验支持；tomcat7及以上的服务器， tomcat7以下的服务器：el表达式。额外给服务器的lib包中替换新的标准的el --> <!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-validator --> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-validator</artifactId> <version>5.4.1.Final</version> </dependency> <!-- Spring-Jdbc --> <!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>${spring.version}</version> </dependency> <!-- Spring面向切面编程 --> <!-- https://mvnrepository.com/artifact/org.springframework/spring-aspects --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aspects</artifactId> <version>${spring.version}</version> </dependency> <!--MyBatis --> <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>${mybatis.version}</version> </dependency> <!-- MyBatis整合Spring的适配包 --> <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>${mybatis-spring.version}</version> </dependency> <!-- 数据库连接池、驱动 --> <!-- https://mvnrepository.com/artifact/c3p0/c3p0 --> <dependency> <groupId>c3p0</groupId> <artifactId>c3p0</artifactId> <version>${c3p0.version}</version> </dependency> <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>${mysql.version}</version> </dependency> <!-- （jstl，servlet-api，junit） --> <!-- https://mvnrepository.com/artifact/jstl/jstl --> <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId> <version>${jstl.version}</version> </dependency> <!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api --> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>${servlet-api.version}</version> <!-- jar包可以指定作用范围 。provided 已经提供的 。 jar(依赖)冲突 。 <scope>provided</scope> 高级程序员 架构师 。 --> <scope>provided</scope> </dependency> <!-- junit --> <!-- https://mvnrepository.com/artifact/junit/junit --> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>${junit.version}</version> <scope>test</scope> </dependency> </dependencies> </dependencyManagement> <build> <!-- &lt;!&ndash;资源文件打包问题&ndash;&gt; <resources> <resource> <directory>src/main/java</directory> <includes> <include>**/*.xml</include> </includes> </resource> <resource> <directory>src/main/resources</directory> <includes> <include>**/*.xml</include> <include>**/*.properties</include> </includes> </resource> </resources>--> <plugins> <!--修正编译器版本 （maven默认使用1.5编译） 直接可以被子模块继承--> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <configuration> <source>1.8</source> <target>1.8</target> </configuration> </plugin> </plugins> <!--插件版本锁定--> <pluginManagement> <plugins> <plugin> <groupId>org.eclipse.jetty</groupId> <artifactId>jetty-maven-plugin</artifactId> <version>9.4.14.v20181114</version> </plugin> </plugins> </pluginManagement> </build> </project> ~~~