模块化建立项目流程(Maven聚合模块)

先说项目使用Maven的好处

1、项目构建。Maven定义了软件开发的整套流程体系，并进行了封装，开发人员只需要指定项目的构建流程，无需针对每个流程编写自己的构建脚本。

2、依赖管理。除了项目构建，Maven最核心的功能是软件包的依赖管理，能够自动分析项目所需要的依赖软件包，并到Maven中心仓库去下载。

A)管理依赖的jar包

B)管理工程之间的依赖关系。

传统工程结构

 

Maven管理的工程结构：

不使用maven：工程部署时需要手动复制jar包。完成工程构建。非常繁琐。

使用maven进行工程构建：

使用maven可以实现一步构建。

1.创建springmvc-parent

1.1创建maven工程

1.1.2修改pom文件

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1. <!-- 集中定义依赖版本号 -->  
2.     <properties>  
3.         <junit.version>4.12</junit.version>  
4.         <spring.version>4.1.3.RELEASE</spring.version>  
5.         <mybatis.version>3.2.8</mybatis.version>  
6.         <mybatis.spring.version>1.2.2</mybatis.spring.version>  
7.         <mybatis.paginator.version>1.2.15</mybatis.paginator.version>  
8.         <mysql.version>5.1.32</mysql.version>  
9.         <slf4j.version>1.6.4</slf4j.version>  
10.         <jackson.version>2.4.2</jackson.version>  
11.         <druid.version>1.0.9</druid.version>  
12.         <httpclient.version>4.3.5</httpclient.version>  
13.         <jstl.version>1.2</jstl.version>  
14.         <servlet-api.version>2.5</servlet-api.version>  
15.         <jsp-api.version>2.0</jsp-api.version>  
16.         <joda-time.version>2.5</joda-time.version>  
17.         <commons-lang3.version>3.3.2</commons-lang3.version>  
18.         <commons-io.version>1.3.2</commons-io.version>  
19.         <commons-net.version>3.3</commons-net.version>  
20.         <pagehelper.version>3.4.2-fix</pagehelper.version>  
21.         <jsqlparser.version>0.9.1</jsqlparser.version>  
22.         <commons-fileupload.version>1.3.1</commons-fileupload.version>  
23.         <jedis.version>2.7.2</jedis.version>  
24.         <solrj.version>4.10.3</solrj.version>  
25.     </properties>  
26. <!-- 只定义以来的版本，并不实际依赖-->  
27.   <dependencyManagement>  
28.         <dependencies>  
29.             <!-- 时间操作组件 -->  
30.             <dependency>  
31.                 <groupId>joda-time</groupId>  
32.                 <artifactId>joda-time</artifactId>  
33.                 <version>${joda-time.version}</version>  
34.             </dependency>  
35.             <!-- Apache工具组件 -->  
36.             <dependency>  
37.                 <groupId>org.apache.commons</groupId>  
38.                 <artifactId>commons-lang3</artifactId>  
39.                 <version>${commons-lang3.version}</version>  
40.             </dependency>  
41.             <dependency>  
42.                 <groupId>org.apache.commons</groupId>  
43.                 <artifactId>commons-io</artifactId>  
44.                 <version>${commons-io.version}</version>  
45.             </dependency>  
46.             <dependency>  
47.                 <groupId>commons-net</groupId>  
48.                 <artifactId>commons-net</artifactId>  
49.                 <version>${commons-net.version}</version>  
50.             </dependency>  
51.             <!-- Jackson Json处理工具包 -->  
52.             <dependency>  
53.                 <groupId>com.fasterxml.jackson.core</groupId>  
54.                 <artifactId>jackson-databind</artifactId>  
55.                 <version>${jackson.version}</version>  
56.             </dependency>  
57.             <!-- httpclient -->  
58.             <dependency>  
59.                 <groupId>org.apache.httpcomponents</groupId>  
60.                 <artifactId>httpclient</artifactId>  
61.                 <version>${httpclient.version}</version>  
62.             </dependency>  
63.             <!-- 单元测试 -->  
64.             <dependency>  
65.                 <groupId>junit</groupId>  
66.                 <artifactId>junit</artifactId>  
67.                 <version>${junit.version}</version>  
68.                 <scope>test</scope>  
69.             </dependency>  
70.             <!-- 日志处理 -->  
71.             <dependency>  
72.                 <groupId>org.slf4j</groupId>  
73.                 <artifactId>slf4j-log4j12</artifactId>  
74.                 <version>${slf4j.version}</version>  
75.             </dependency>  
76.             <!-- Mybatis -->  
77.             <dependency>  
78.                 <groupId>org.mybatis</groupId>  
79.                 <artifactId>mybatis</artifactId>  
80.                 <version>${mybatis.version}</version>  
81.             </dependency>  
82.             <dependency>  
83.                 <groupId>org.mybatis</groupId>  
84.                 <artifactId>mybatis-spring</artifactId>  
85.                 <version>${mybatis.spring.version}</version>  
86.             </dependency>  
87.             <dependency>  
88.                 <groupId>com.github.miemiedev</groupId>  
89.                 <artifactId>mybatis-paginator</artifactId>  
90.                 <version>${mybatis.paginator.version}</version>  
91.             </dependency>  
92.             <dependency>  
93.                 <groupId>com.github.pagehelper</groupId>  
94.                 <artifactId>pagehelper</artifactId>  
95.                 <version>${pagehelper.version}</version>  
96.             </dependency>  
97.             <!-- MySql -->  
98.             <dependency>  
99.                 <groupId>mysql</groupId>  
100.                 <artifactId>mysql-connector-java</artifactId>  
101.                 <version>${mysql.version}</version>  
102.             </dependency>  
103.             <!-- 连接池 -->  
104.             <dependency>  
105.                 <groupId>com.alibaba</groupId>  
106.                 <artifactId>druid</artifactId>  
107.                 <version>${druid.version}</version>  
108.             </dependency>  
109.             <!-- Spring -->  
110.             <dependency>  
111.                 <groupId>org.springframework</groupId>  
112.                 <artifactId>spring-context</artifactId>  
113.                 <version>${spring.version}</version>  
114.             </dependency>  
115.             <dependency>  
116.                 <groupId>org.springframework</groupId>  
117.                 <artifactId>spring-beans</artifactId>  
118.                 <version>${spring.version}</version>  
119.             </dependency>  
120.             <dependency>  
121.                 <groupId>org.springframework</groupId>  
122.                 <artifactId>spring-webmvc</artifactId>  
123.                 <version>${spring.version}</version>  
124.             </dependency>  
125.             <dependency>  
126.                 <groupId>org.springframework</groupId>  
127.                 <artifactId>spring-jdbc</artifactId>  
128.                 <version>${spring.version}</version>  
129.             </dependency>  
130.             <dependency>  
131.                 <groupId>org.springframework</groupId>  
132.                 <artifactId>spring-aspects</artifactId>  
133.                 <version>${spring.version}</version>  
134.             </dependency>  
135.             <!-- JSP相关 -->  
136.             <dependency>  
137.                 <groupId>jstl</groupId>  
138.                 <artifactId>jstl</artifactId>  
139.                 <version>${jstl.version}</version>  
140.             </dependency>  
141.             <dependency>  
142.                 <groupId>javax.servlet</groupId>  
143.                 <artifactId>servlet-api</artifactId>  
144.                 <version>${servlet-api.version}</version>  
145.                 <scope>provided</scope>  
146.             </dependency>  
147.             <dependency>  
148.                 <groupId>javax.servlet</groupId>  
149.                 <artifactId>jsp-api</artifactId>  
150.                 <version>${jsp-api.version}</version>  
151.                 <scope>provided</scope>  
152.             </dependency>  
153.             <!-- 文件上传组件 -->  
154.             <dependency>  
155.                 <groupId>commons-fileupload</groupId>  
156.                 <artifactId>commons-fileupload</artifactId>  
157.                 <version>${commons-fileupload.version}</version>  
158.             </dependency>  
159.             <!-- Redis客户端 -->  
160.             <dependency>  
161.                 <groupId>redis.clients</groupId>  
162.                 <artifactId>jedis</artifactId>  
163.                 <version>${jedis.version}</version>  
164.             </dependency>  
165.             <!-- solr客户端 -->  
166.             <dependency>  
167.                 <groupId>org.apache.solr</groupId>  
168.                 <artifactId>solr-solrj</artifactId>  
169.                 <version>${solrj.version}</version>  
170.             </dependency>  
171.         </dependencies>  
172.     </dependencyManagement>  
173.       
174.     <build>  
175.         <finalName>${project.artifactId}</finalName>  
176.         <plugins>  
177.             <!-- 资源文件拷贝插件，实际依赖 -->  
178.             <plugin>  
179.                 <groupId>org.apache.maven.plugins</groupId>  
180.                 <artifactId>maven-resources-plugin</artifactId>  
181.                 <version>2.7</version>  
182.                 <configuration>  
183.                     <encoding>UTF-8</encoding>  
184.                 </configuration>  
185.             </plugin>  
186.             <!-- java编译插件 -->  
187.             <plugin>  
188.                 <groupId>org.apache.maven.plugins</groupId>  
189.                 <artifactId>maven-compiler-plugin</artifactId>  
190.                 <version>3.2</version>  
191.                 <configuration>  
192.                     <source>1.7</source>  
193.                     <target>1.7</target>  
194.                     <encoding>UTF-8</encoding>  
195.                 </configuration>  
196.             </plugin>  
197.         </plugins>  
198.         <pluginManagement>  
199.             <plugins>  
200.                 <!-- 配置Tomcat插件 -->  
201.                 <plugin>  
202.                     <groupId>org.apache.tomcat.maven</groupId>  
203.                     <artifactId>tomcat7-maven-plugin</artifactId>  
204.                     <version>2.2</version>  
205.                 </plugin>  
206.             </plugins>  
207.         </pluginManagement>  
208.     </build>    

1.1.3 将spring-parent安装到本地仓库

2.创建spring-common

注意：我们这里创建common项目的用途是用来放其他工程需要用到的通用组件、工具类、以及单元测试等等，可以让整个结构体系看起来更加清晰，明确

2.1.1 创建工程（由于我之前建过这个项目所以我这里只是演示下）

2.1.2修改pom文件

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1. <!-- jar包的依赖 -->  
2.     <dependencies>  
3.         <!-- 时间操作组件 -->  
4.         <dependency>  
5.             <groupId>joda-time</groupId>  
6.             <artifactId>joda-time</artifactId>  
7.         </dependency>  
8.         <!-- Apache工具组件 -->  
9.         <dependency>  
10.             <groupId>org.apache.commons</groupId>  
11.             <artifactId>commons-lang3</artifactId>  
12.         </dependency>  
13.         <dependency>  
14.             <groupId>org.apache.commons</groupId>  
15.             <artifactId>commons-io</artifactId>  
16.         </dependency>  
17.         <dependency>  
18.             <groupId>commons-net</groupId>  
19.             <artifactId>commons-net</artifactId>  
20.         </dependency>  
21.         <!-- Jackson Json处理工具包 -->  
22.         <dependency>  
23.             <groupId>com.fasterxml.jackson.core</groupId>  
24.             <artifactId>jackson-databind</artifactId>  
25.         </dependency>  
26.         <!-- httpclient -->  
27.         <dependency>  
28.             <groupId>org.apache.httpcomponents</groupId>  
29.             <artifactId>httpclient</artifactId>  
30.         </dependency>  
31.         <!-- 单元测试 -->  
32.         <dependency>  
33.             <groupId>junit</groupId>  
34.             <artifactId>junit</artifactId>  
35.             <scope>test</scope>  
36.         </dependency>  
37.         <!-- 日志处理 -->  
38.         <dependency>  
39.             <groupId>org.slf4j</groupId>  
40.             <artifactId>slf4j-log4j12</artifactId>  
41.         </dependency>  
42.     </dependencies>  

2.1.3 更新工程

右键项目->Maven->Update Project Configuration

3.创建spring-manager

注意这是个pom工程

5.1修改pom文件

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1. <project xmlns="http://maven./POM/4.0.0" xmlns:xsi="http://www./2001/XMLSchema-instance"  
2.     xsi:schemaLocation="http://maven./POM/4.0.0 http://maven./xsd/maven-4.0.0.xsd">  
3.     <modelVersion>4.0.0</modelVersion>  
4.     <parent>  
5.         <groupId>com.yanl</groupId>  
6.         <artifactId>springmvc-parent</artifactId>  
7.         <version>0.0.1-SNAPSHOT</version>  
8.     </parent>  
9.     <groupId>com.yanl</groupId>  
10.     <artifactId>spring-manager</artifactId>  
11.     <version>0.0.1-SNAPSHOT</version>  
12.     <packaging>pom</packaging>  
13.     <description>聚合工程，包含4个模块三个jar模块entity，mapper，service以及war模块controller</description>  
14.     <!-- 依赖管理 -->  
15.     <dependencies>  
16.         <dependency>  
17.             <groupId>com.yanl</groupId>  
18.             <artifactId>spring-common</artifactId>  
19.             <version>0.0.1-SNAPSHOT</version>  
20.         </dependency>  
21.     </dependencies>  
22.     <modules>  
23.         <module>spring-manager-entity</module>  
24.         <module>spring-manager-mapper</module>  
25.         <module>spring-manager-service</module>  
26.         <module>spring-manager-web</module>  
27.     </modules>  
28.     <build>  
29.         <plugins>  
30.             <plugin>  
31.                 <groupId>org.apache.tomcat.maven</groupId>  
32.                 <artifactId>tomcat7-maven-plugin</artifactId>  
33.                 <configuration>  
34.                     <port>8080</port>  
35.                     <path>/</path>  
36.                 </configuration>  
37.             </plugin>  
38.         </plugins>  
39.     </build>  
40. </project>  

4.创建spring-manager-entity

注意：这是一个在manager里面的模块所以右键spring-manager项目选择新建项目的Maven Module

5.创建spring-manager-mapper

5.1修改pom文件

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1. <project xmlns="http://maven./POM/4.0.0" xmlns:xsi="http://www./2001/XMLSchema-instance"  
2.     xsi:schemaLocation="http://maven./POM/4.0.0 http://maven./xsd/maven-4.0.0.xsd">  
3.     <modelVersion>4.0.0</modelVersion>  
4.     <parent>  
5.         <groupId>com.yanl</groupId>  
6.         <artifactId>spring-manager</artifactId>  
7.         <version>0.0.1-SNAPSHOT</version>  
8.     </parent>  
9.     <artifactId>spring-manager-mapper</artifactId>  
10.     <!-- 依赖管理 -->  
11.     <dependencies>  
12.         <dependency>  
13.             <groupId>com.yanl</groupId>  
14.             <artifactId>spring-manager-entity</artifactId>  
15.             <version>0.0.1-SNAPSHOT</version>  
16.         </dependency>  
17.         <!-- Mybatis -->  
18.             <dependency>  
19.                 <groupId>org.mybatis</groupId>  
20.                 <artifactId>mybatis</artifactId>  
21.             </dependency>  
22.             <dependency>  
23.                 <groupId>org.mybatis</groupId>  
24.                 <artifactId>mybatis-spring</artifactId>  
25.             </dependency>  
26.             <dependency>  
27.                 <groupId>com.github.miemiedev</groupId>  
28.                 <artifactId>mybatis-paginator</artifactId>  
29.             </dependency>  
30.             <dependency>  
31.                 <groupId>com.github.pagehelper</groupId>  
32.                 <artifactId>pagehelper</artifactId>  
33.             </dependency>  
34.             <!-- MySql -->  
35.             <dependency>  
36.                 <groupId>mysql</groupId>  
37.                 <artifactId>mysql-connector-java</artifactId>  
38.             </dependency>  
39.             <!-- 连接池 -->  
40.             <dependency>  
41.                 <groupId>com.alibaba</groupId>  
42.                 <artifactId>druid</artifactId>  
43.             </dependency>  
44.     </dependencies>  
45. </project>  

6.创建spring-manager-service

6.1修改pom文件

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1. <project xmlns="http://maven./POM/4.0.0" xmlns:xsi="http://www./2001/XMLSchema-instance"  
2.     xsi:schemaLocation="http://maven./POM/4.0.0 http://maven./xsd/maven-4.0.0.xsd">  
3.     <modelVersion>4.0.0</modelVersion>  
4.     <parent>  
5.         <groupId>com.yanl</groupId>  
6.         <artifactId>spring-manager</artifactId>  
7.         <version>0.0.1-SNAPSHOT</version>  
8.     </parent>  
9.     <artifactId>spring-manager-service</artifactId>  
10.     <description>service模块</description>  
11.     <!-- 依赖管理 -->  
12.     <dependencies>  
13.         <dependency>  
14.             <groupId>com.yanl</groupId>  
15.             <artifactId>spring-manager-mapper</artifactId>  
16.             <version>0.0.1-SNAPSHOT</version>  
17.         </dependency>  
18.         <!-- Spring -->  
19.         <dependency>  
20.             <groupId>org.springframework</groupId>  
21.             <artifactId>spring-context</artifactId>  
22.         </dependency>  
23.         <dependency>  
24.             <groupId>org.springframework</groupId>  
25.             <artifactId>spring-beans</artifactId>  
26.         </dependency>  
27.         <dependency>  
28.             <groupId>org.springframework</groupId>  
29.             <artifactId>spring-webmvc</artifactId>  
30.         </dependency>  
31.         <dependency>  
32.             <groupId>org.springframework</groupId>  
33.             <artifactId>spring-jdbc</artifactId>  
34.         </dependency>  
35.         <dependency>  
36.             <groupId>org.springframework</groupId>  
37.             <artifactId>spring-aspects</artifactId>  
38.         </dependency>  
39.     </dependencies>  
40. </project>  

7.创建spring-manager-web（这个就是我们的前端控制器controller）

7.1修改pom文件

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1. <project xmlns="http://maven./POM/4.0.0" xmlns:xsi="http://www./2001/XMLSchema-instance"  
2.     xsi:schemaLocation="http://maven./POM/4.0.0 http://maven./xsd/maven-4.0.0.xsd">  
3.     <modelVersion>4.0.0</modelVersion>  
4.     <parent>  
5.         <groupId>com.yanl</groupId>  
6.         <artifactId>spring-manager</artifactId>  
7.         <version>0.0.1-SNAPSHOT</version>  
8.     </parent>  
9.     <artifactId>spring-manager-web</artifactId>  
10.     <packaging>war</packaging>  
11.     <!-- 依赖管理 -->  
12.     <dependencies>  
13.         <dependency>  
14.             <groupId>com.yanl</groupId>  
15.             <artifactId>spring-manager-service</artifactId>  
16.             <version>0.0.1-SNAPSHOT</version>  
17.         </dependency>  
18.         <!-- JSP相关 -->  
19.         <dependency>  
20.             <groupId>jstl</groupId>  
21.             <artifactId>jstl</artifactId>  
22.             <version>${jstl.version}</version>  
23.         </dependency>  
24.         <dependency>  
25.             <groupId>javax.servlet</groupId>  
26.             <artifactId>servlet-api</artifactId>  
27.             <version>${servlet-api.version}</version>  
28.             <scope>provided</scope>  
29.         </dependency>  
30.         <dependency>  
31.             <groupId>javax.servlet</groupId>  
32.             <artifactId>jsp-api</artifactId>  
33.             <version>${jsp-api.version}</version>  
34.             <scope>provided</scope>  
35.         </dependency>  
36.         <!-- 文件上传组件 -->  
37.         <dependency>  
38.             <groupId>commons-fileupload</groupId>  
39.             <artifactId>commons-fileupload</artifactId>  
40.             <version>${commons-fileupload.version}</version>  
41.         </dependency>  
42.     </dependencies>  
43. </project>  

至此我们的工程建立完成，我们需要测试这个工程能不能用还需要配置如下

8.配置tomcat插件

运行web工程需要添加一个tomcat插件。插件必须添加到spring-manager工程中。因为spring-manager是聚合工程。在运行时需要把子工程聚合到一起才能运行。

上面在创建spring-manager时我已经配置了，这里在配下，提醒。

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1. <build>  
2.         <plugins>  
3.             <plugin>  
4.                 <groupId>org.apache.tomcat.maven</groupId>  
5.                 <artifactId>tomcat7-maven-plugin</artifactId>  
6.                 <configuration>  
7.                     <port>8080</port>  
8.                     <path>/</path>  
9.                 </configuration>  
10.             </plugin>  
11.         </plugins>  
12.     </build>  

9.运行聚合工程

看到如下，说明运行成功

然后打开http://localhost:8080/你会看到

大功告成，说明我们的聚合工程没有问题，这里有几点需要解释下

10.1.关于mybatis分页插件pagehelper的问题

有关分页插件请看我之前写过的一篇pagehelper文章。

10.2  Java编译插件

10.3  Build时控制台报错，一般是提示parent，common没有安装，你右键这两个项目安装下在运行spring-manager就可以了。

10.4 需要用到的仓库我上传到我的资源里面了（由于文件太大，我传百度网盘了，传送门 http://pan.baidu.com/s/1cmrIgu），如果maven下载不了直接将这个仓库覆盖你自己的本地仓库，一般本地仓库在C盘用户.m2文件夹下，祝你成功。

10.5 工程项目在我资源页http://download.csdn.net/detail/lemontreey/9738477，我没有clean所以比较大。