简述
Maven工程的拆分和聚合
（1）定义父工程，集中管理依赖版本，模块基于父工程进行创建；
（2）模块拆分的越细，可重用越高，避免重复代码；
（3）模块之间需要通过依赖来建立关系；
（4）三层结构（dao：取数据；service：业务处理；controller：展现数据）
项目三层拆分示例
（1）创建parent工程（pom）
（2）创建dao模块（jar），引入dao相关依赖、代码和配置文件（applicationContext-dao.xml、jdbc.properties）
（3）创建service模块（jar），引入dao模块，引入service相关依赖、代码和配置文件（applicationContext-service.xml，还需要导入applicationContext-dao.xml）
（4）创建controller模块（war），引入service模块，引入controller相关依赖、代码和配置文件（springmvc.xml、log4j.porperties、applicationContext.xml需要导入applicationContext-service.xml）
本地私服
（1）上传配置
1、本地需要安装nexus和maven；
2、在maven的配置文件中配置连接nexus
<server>
<!--这是server的id（注意不是用户登陆的id），该id与distributionManagement中repository元素的id相匹配。-->
<id>nexus-releases</id>
<!--鉴权用户名。鉴权用户名和鉴权密码表示服务器认证所需要的登录名和密码。 -->
<username>admin</username>
<password>admin123</password>
</server>
<server>
<id>nexus-snapshots</id>
<username>admin</username>
<password>admin123</password>
</server>
3、在需要发布到私服的模块pom.xml中配置
<!--定义snapshots库和releases库的nexus地址-->
<distributionManagement>
<repository>
<id>nexus-releases</id>
<url>
http://localhost:8081/nexus/content/repositories/releases/
</url>
</repository>
<snapshotRepository>
<id>nexus-snapshots</id>
<url>
http://localhost:8081/nexus/content/repositories/snapshots/
</url>
</snapshotRepository>
</distributionManagement>
4、在需要发布到私服的模块目录下执行命令：deploy
（2）下载配置
1、本地需要安装nexus和maven；
2、在maven的配置文件中配置
<!-- 下载jar包配置 -->
<profile>
<!--profile的id -->
<id>dev</id>
<repositories>
<repository> <!--仓库id，repositories可以配置多个仓库，保证id不重复 -->
<id>nexus</id> <!--仓库地址，即nexus仓库组的地址 -->
<url>http://localhost:8081/nexus/content/groups/public/</url> <!--是否下载releases构件 -->
<releases>
<enabled>true</enabled>
</releases> <!--是否下载snapshots构件 -->
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories> <!-- 插件仓库，maven的运行依赖插件，也需要从私服下载插件 -->
<pluginRepository> <!-- 插件仓库的id不允许重复，如果重复后边配置会覆盖前边 -->
<id>public</id>
<name>Public Repositories</name>
<url>http://localhost:8081/nexus/content/groups/public/</url>
</pluginRepository>
</pluginRepositories>
</profile>
<activeProfiles>
<activeProfile>dev</activeProfile>
</activeProfiles>
pom.xml
<!-- 集中定义依赖版本号 -->
<properties>
<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>
<mybatis.paginator.version>1.2.15</mybatis.paginator.version>
<spring.datajpa.version>1.4.1.RELEASE</spring.datajpa.version>
<hibernate.version>3.6.10.Final</hibernate.version>
<oracle.version>10.2.0.4.0</oracle.version>
<mysql.version>5.1.6</mysql.version>
<postgresql.version>9.3-1102-jdbc4</postgresql.version>
<struts2.version>2.5.8</struts2.version>
<slf4j.version>1.6.4</slf4j.version>
<jackson.version>2.4.2</jackson.version>
<druid.version>1.0.9</druid.version>
<c3p0.version>0.9.1.2</c3p0.version>
<bonecp.version>0.8.0.RELEASE</bonecp.version>
<httpclient.version>4.3.5</httpclient.version>
<jstl.version>1.2</jstl.version>
<servlet-api.version>2.5</servlet-api.version>
<jsp-api.version>2.0</jsp-api.version>
<joda-time.version>2.5</joda-time.version>
<cglib.version>3.1</cglib.version>
<commons-lang3.version>3.3.2</commons-lang3.version>
<commons-io.version>1.3.2</commons-io.version>
<commons-net.version>3.3</commons-net.version>
<commons-codec.version>1.9</commons-codec.version>
<hibernate-validator.version>5.1.3.Final</hibernate-validator.version>
<pagehelper.version>3.4.2-fix</pagehelper.version>
<jsqlparser.version>0.9.1</jsqlparser.version>
<mapper.version>2.3.4</mapper.version>
<commons-fileupload.version>1.3.1</commons-fileupload.version>
<jedis.version>2.7.2</jedis.version>
<solrj.version>4.10.3</solrj.version>
<hibernate-tools.version>3.6.0.CR1</hibernate-tools.version>
<poi.version>3.9</poi.version>
<pinyin4j.version>2.5.0</pinyin4j.version>
<cxf.version>3.1.5</cxf.version>
<gson.version>2.6.1</gson.version>
<hibernate-search.version>3.4.2.Final</hibernate-search.version>
<IKAnalyzer.version>3.2.8</IKAnalyzer.version>
<shiro.version>1.2.4</shiro.version>
<ehcache.version>2.6.10</ehcache.version>
<activiti.version>5.19.0.2</activiti.version>
<activiti.version>5.19.0.2</activiti.version>
</properties>
<!-- 只定义依赖的版本，并不实际依赖 -->
<dependencyManagement>
<dependencies>
<!-- 时间操作组件，页面向mvc中提交date型数据的时候，使用 -->
<dependency>
<groupId>joda-time</groupId>
<artifactId>joda-time</artifactId>
<version>${joda-time.version}</version>
</dependency>
<!-- Apache工具组件lang3 -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>${commons-lang3.version}</version>
</dependency>
<!-- 延迟加载需要的倚赖包 -->
<dependency>
<groupId>cglib</groupId>
<artifactId>cglib</artifactId>
<version>${cglib.version}</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-io</artifactId>
<version>${commons-io.version}</version>
</dependency>
<!-- ftp -->
<dependency>
<groupId>commons-net</groupId>
<artifactId>commons-net</artifactId>
<version>${commons-net.version}</version>
</dependency>
<!-- md5加密 -->
<dependency>
<groupId>commons-codec</groupId>
<artifactId>commons-codec</artifactId>
<version>${commons-codec.version}</version>
</dependency>
<!-- 数据校验 -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<version>${hibernate-validator.version}</version>
</dependency>
<!-- Jackson Json处理工具包 -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>${jackson.version}</version>
</dependency>
<!-- httpclient -->
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>${httpclient.version}</version>
</dependency>
<!-- 单元测试 -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<!-- 日志处理 -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j.version}</version>
</dependency>
<!-- hibernate核心 -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>${hibernate.version}</version>
</dependency>
<!-- hibernate对jpa支持(整合) -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>${hibernate.version}</version>
</dependency>
<!-- spring data jpa核心 -->
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-jpa</artifactId>
<version>${spring.datajpa.version}</version>
</dependency>
<!-- Mybatis核心 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<!-- spring整合 mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>${mybatis.spring.version}</version>
</dependency>
<!-- mybatis分页插件 -->
<dependency>
<groupId>com.github.miemiedev</groupId>
<artifactId>mybatis-paginator</artifactId>
<version>${mybatis.paginator.version}</version>
</dependency>
<!-- pagehelper分页 -->
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper</artifactId>
<version>${pagehelper.version}</version>
</dependency>
<dependency>
<groupId>com.github.jsqlparser</groupId>
<artifactId>jsqlparser</artifactId>
<version>${jsqlparser.version}</version>
</dependency>
<!-- 通用Mapper -->
<dependency>
<groupId>com.github.abel533</groupId>
<artifactId>mapper</artifactId>
<version>${mapper.version}</version>
</dependency>
<!-- Oracle驱动 -->
<dependency>
<groupId>com.oracle</groupId>
<artifactId>ojdbc14</artifactId>
<version>${oracle.version}</version>
<scope>runtime</scope>
</dependency>
<!-- mysql驱动 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.version}</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>${postgresql.version}</version>
<scope>runtime</scope>
</dependency>
<!-- alibaba连接池 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>${druid.version}</version>
</dependency>
<!-- c3p0连接池 -->
<dependency>
<groupId>c3p0</groupId>
<artifactId>c3p0</artifactId>
<version>${c3p0.version}</version>
</dependency>
<!-- bonecp连接池 -->
<dependency>
<groupId>com.jolbox</groupId>
<artifactId>bonecp-spring</artifactId>
<version>${bonecp.version}</version>
</dependency>
<!-- struts核心 -->
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-core</artifactId>
<version>${struts2.version}</version>
</dependency>
<!-- struts综合spring插件 -->
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-spring-plugin</artifactId>
<version>${struts2.version}</version>
</dependency>
<!-- struts自动json插件 -->
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-json-plugin</artifactId>
<version>${struts2.version}</version>
</dependency>
<!-- struts约定注解开发 -->
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-convention-plugin</artifactId>
<version>${struts2.version}</version>
</dependency>
<!-- Spring 核心提供了大量扩展 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- spring bean -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- springMVC核心 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- spring jdbc事物管理 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- springAOP -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- spring注解测试 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- jstl -->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>${jstl.version}</version>
</dependency>
<!-- servlet -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>${servlet-api.version}</version>
<scope>provided</scope>
</dependency>
<!-- jsp -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jsp-api</artifactId>
<version>${jsp-api.version}</version>
<scope>provided</scope>
</dependency>
<!-- 文件上传组件 -->
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>${commons-fileupload.version}</version>
</dependency>
<!-- Redis客户端 -->
<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
<version>${jedis.version}</version>
</dependency>
<!-- solr客户端 -->
<dependency>
<groupId>org.apache.solr</groupId>
<artifactId>solr-solrj</artifactId>
<version>${solrj.version}</version>
</dependency>
<!-- hibernate工具，表反转生成实体类 -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-tools</artifactId>
<version>${hibernate-tools.version}</version>
<!-- 排除重复 -->
<exclusions>
<exclusion>
<artifactId>freemarker</artifactId>
<groupId>freemarker</groupId>
</exclusion>
</exclusions>
</dependency>
<!-- apache POI处理office核心 -->
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>${poi.version}</version>
</dependency>
<!-- apache POI处理office -->
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>${poi.version}</version>
</dependency>
<!-- 汉字转拼音pinyin4j -->
<dependency>
<groupId>com.belerweb</groupId>
<artifactId>pinyin4j</artifactId>
<version>2.5.0</version>
</dependency>
<!-- cxf-WebServic框架-->
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-frontend-jaxws</artifactId>
<version>${cxf.version}</version>
</dependency>
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-transports-http</artifactId>
<version>${cxf.version}</version>
</dependency>
<!-- gson json序列化和反序列化 -->
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>${gson.version}</version>
</dependency>
<!-- hibernate search全文索引 -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-search</artifactId>
<version>${hibernate-search.version}</version>
</dependency>
<!-- ik分词器 -->
<dependency>
<groupId>IKAnalyzer</groupId>
<artifactId>IKAnalyzer</artifactId>
<version>${IKAnalyzer.version}</version>
</dependency>
<!-- shiro权限认证 -->
<dependency>
<groupId>org.apache.shiro</groupId>
<artifactId>shiro-all</artifactId>
<version>${shiro.version}</version>
</dependency>
<!-- ehcache核心 -->
<dependency>
<groupId>net.sf.ehcache</groupId>
<artifactId>ehcache-core</artifactId>
<version>${ehcache.version}</version>
</dependency>
<!-- activiti核心依赖 -->
<dependency>
<groupId>org.activiti</groupId>
<artifactId>activiti-engine</artifactId>
<version>${activiti.version}</version>
</dependency>
<!-- spring整合activiti -->
<dependency>
<groupId>org.activiti</groupId>
<artifactId>activiti-spring</artifactId>
<version>${activiti.version}</version>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<finalName>${project.artifactId}</finalName>
<plugins>
<!-- 资源文件拷贝插件 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>2.7</version>
<configuration>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
<!-- java编译插件 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.2</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
</plugins>
<pluginManagement>
<plugins>
<!-- 配置Tomcat插件 -->
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.2</version>
</plugin>
</plugins>
</pluginManagement>
</build>