Maven多模块项目
Maven多模块项目,适用于一些比较大的项目，通过合理的模块拆分，实现代码的复用，便于维护和管理。尤其是一些开源框架，也是采用多模块的方式，提供插件集成，用户可以根据需要配置指定的模块。
项目结构如下：
test-hd-parent (父级)
---pom.xml
---test-hd-api (第三方接口层)
----pom.xml
---test-hd-foundation (基础工具层)
----pom.xml
---test-hd-resource (资源层)
----pom.xml
---test-hd-service (逻辑业务层)
----pom.xml
---test-hd-modules (web层)
----pom.xml
---test-hd-www (web模块1)
----pom.xml
---test-hd-admin (web模块2)
----pom.xml
创建一个父maven工程
- 新建一个maven项目，选择存储位置，并选择创建一个简单的maven工程
- 输入Group Id、Artifact Id、Packaging，packaging选择pom包
- 生成父工程，pom.xml如下
- 删除工程中的src 目录
创建子模块
- 右击父工程名---》New---》Project，然后选择新建一个maven module工程
- 设置子工程名以及父工程，再设置快速创建模式
- 得到子工程（test-hd-api，第三方接口层），设置编译的jdk
- 同理设置，子模块：test-hd-foundation(基础工具层)、test-hd-resource(资源层) 、test-hd-service(逻辑业务层)
- 新建test-hd-modules (web层)，选择创建一个a simple project，输入Group Id、Artifact Id、Packaging，packaging选择pom包
创建web子模块
- web子模块在建在test-hd-modules (web层)里面，右击test-hd-modules 工程名---》New---》Project，然后选择新建一个maven module工程，设置子工程名以及父工程，选择新建web项目
- 配置maven web项目，参照：【Maven】Eclipse 使用Maven创建Java Web项目
- 同理可以配置其他的web子模块 test-hd-admin(web模块2)
配置个模块的依赖
- 在parent项目pom.xml中建立依赖管理（dependencyManagement）
1 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
2 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
3 <modelVersion>4.0.0</modelVersion>
4 <groupId>com.hd</groupId>
5 <artifactId>test-hd-parent</artifactId>
6 <version>0.0.1-SNAPSHOT</version>
7 <packaging>pom</packaging>
8 <modules>
9 <module>test-hd-api</module>
10 <module>test-hd-service</module>
11 <module>test-hd-resource</module>
12 <module>test-hd-foundation</module>
13 <module>test-hd-modules</module>
14 </modules>
15
16
17 <!-- maven依赖 -->
18 <dependencyManagement>
19
20 <dependencies>
21 <!-- hd -->
22 <dependency>
23 <groupId>com.hd</groupId>
24 <artifactId>test-hd-api</artifactId>
25 <version>0.0.1-SNAPSHOT</version>
26 </dependency>
27
28 <dependency>
29 <groupId>com.hd</groupId>
30 <artifactId>test-hd-service</artifactId>
31 <version>0.0.1-SNAPSHOT</version>
32 </dependency>
33
34 <dependency>
35 <groupId>com.hd</groupId>
36 <artifactId>test-hd-resource</artifactId>
37 <version>0.0.1-SNAPSHOT</version>
38 </dependency>
39
40 <dependency>
41 <groupId>com.hd</groupId>
42 <artifactId>test-hd-foundation</artifactId>
43 <version>0.0.1-SNAPSHOT</version>
44 </dependency>
45
46 <!-- Servlet -->
47 <dependency>
48 <groupId>javax.servlet</groupId>
49 <artifactId>javax.servlet-api</artifactId>
50 <version>3.0.1</version>
51 <scope>provided</scope>
52 </dependency>
53 <dependency>
54 <groupId>javax.servlet.jsp</groupId>
55 <artifactId>jsp-api</artifactId>
56 <version>2.2</version>
57 <scope>provided</scope>
58 </dependency>
59
60 <!-- jstl -->
61 <dependency>
62 <groupId>javax.servlet</groupId>
63 <artifactId>jstl</artifactId>
64 <version>1.2</version>
65 </dependency>
66
67 <dependency>
68 <groupId>taglibs</groupId>
69 <artifactId>standard</artifactId>
70 <version>1.1.2</version>
71 </dependency>
72
73 <dependency>
74 <groupId>junit</groupId>
75 <artifactId>junit</artifactId>
76 <version>3.8.1</version>
77 <scope>test</scope>
78 </dependency>
79
80 </dependencies>
81 </dependencyManagement>
82
83 </project> - test-hd-foundation中的依赖
1 <?xml version="1.0"?>
2 <project
3 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
4 xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
5 <modelVersion>4.0.0</modelVersion>
6 <parent>
7 <groupId>com.hd</groupId>
8 <artifactId>test-hd-parent</artifactId>
9 <version>0.0.1-SNAPSHOT</version>
10 </parent>
11 <artifactId>test-hd-foundation</artifactId>
12
13 <dependencies>
14
15 <!-- servlet -->
16 <dependency>
17 <groupId>javax.servlet</groupId>
18 <artifactId>jstl</artifactId>
19 </dependency>
20
21 <dependency>
22 <groupId>taglibs</groupId>
23 <artifactId>standard</artifactId>
24 </dependency>
25
26 <dependency>
27 <groupId>junit</groupId>
28 <artifactId>junit</artifactId>
29 </dependency>
30 </dependencies>
31
32 <build>
33 <plugins>
34 <!-- define the project compile level -->
35 <plugin>
36 <groupId>org.apache.maven.plugins</groupId>
37 <artifactId>maven-compiler-plugin</artifactId>
38 <version>2.3.2</version>
39 <configuration>
40 <source>1.7</source>
41 <target>1.7</target>
42 </configuration>
43 </plugin>
44 </plugins>
45 </build>
46 </project> - test-hd-api中的依赖关系
View Code
1 <?xml version="1.0"?>
2 <project
3 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
4 xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
5 <modelVersion>4.0.0</modelVersion>
6 <parent>
7 <groupId>com.hd</groupId>
8 <artifactId>test-hd-parent</artifactId>
9 <version>0.0.1-SNAPSHOT</version>
10 </parent>
11 <artifactId>test-hd-api</artifactId>
12 <dependencies>
13
14 <dependency>
15 <groupId>com.hd</groupId>
16 <artifactId>test-hd-foundation</artifactId>
17 </dependency>
18
19 <!-- servlet -->
20 <dependency>
21 <groupId>javax.servlet</groupId>
22 <artifactId>jstl</artifactId>
23 </dependency>
24
25 <dependency>
26 <groupId>taglibs</groupId>
27 <artifactId>standard</artifactId>
28 </dependency>
29
30 <dependency>
31 <groupId>junit</groupId>
32 <artifactId>junit</artifactId>
33 </dependency>
34 </dependencies>
35 <build>
36 <plugins>
37 <!-- define the project compile level -->
38 <plugin>
39 <groupId>org.apache.maven.plugins</groupId>
40 <artifactId>maven-compiler-plugin</artifactId>
41 <version>2.3.2</version>
42 <configuration>
43 <source>1.7</source>
44 <target>1.7</target>
45 </configuration>
46 </plugin>
47 </plugins>
48 <finalName>test-hd-api</finalName>
49 </build>
50 </project> - test-hd-resource中的依赖关系
View Code
1 <?xml version="1.0"?>
2 <project
3 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
4 xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
5 <modelVersion>4.0.0</modelVersion>
6 <parent>
7 <groupId>com.hd</groupId>
8 <artifactId>test-hd-parent</artifactId>
9 <version>0.0.1-SNAPSHOT</version>
10 </parent>
11 <artifactId>test-hd-resource</artifactId>
12 <dependencies>
13
14 <dependency>
15 <groupId>junit</groupId>
16 <artifactId>junit</artifactId>
17 </dependency>
18 </dependencies>
19
20 <build>
21 <plugins>
22 <!-- define the project compile level -->
23 <plugin>
24 <groupId>org.apache.maven.plugins</groupId>
25 <artifactId>maven-compiler-plugin</artifactId>
26 <version>2.3.2</version>
27 <configuration>
28 <source>1.7</source>
29 <target>1.7</target>
30 </configuration>
31 </plugin>
32 </plugins>
33 </build>
34 </project> - test-hd-service中的依赖关系
View Code
1 <?xml version="1.0"?>
2 <project
3 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
4 xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
5 <modelVersion>4.0.0</modelVersion>
6 <parent>
7 <groupId>com.hd</groupId>
8 <artifactId>test-hd-parent</artifactId>
9 <version>0.0.1-SNAPSHOT</version>
10 </parent>
11 <artifactId>test-hd-service</artifactId>
12 <dependencies>
13
14 <dependency>
15 <groupId>com.hd</groupId>
16 <artifactId>test-hd-foundation</artifactId>
17 </dependency>
18
19 <dependency>
20 <groupId>com.hd</groupId>
21 <artifactId>test-hd-api</artifactId>
22 </dependency>
23
24 <!-- servlet -->
25 <dependency>
26 <groupId>javax.servlet</groupId>
27 <artifactId>jstl</artifactId>
28 </dependency>
29
30 <dependency>
31 <groupId>taglibs</groupId>
32 <artifactId>standard</artifactId>
33 </dependency>
34
35 <dependency>
36 <groupId>junit</groupId>
37 <artifactId>junit</artifactId>
38 </dependency>
39 </dependencies>
40
41
42 <build>
43 <plugins>
44 <!-- define the project compile level -->
45 <plugin>
46 <groupId>org.apache.maven.plugins</groupId>
47 <artifactId>maven-compiler-plugin</artifactId>
48 <version>2.3.2</version>
49 <configuration>
50 <source>1.7</source>
51 <target>1.7</target>
52 </configuration>
53 </plugin>
54 </plugins>
55 <finalName>test-hd-service</finalName>
56 </build>
57 </project> - test-hd-module中的依赖关系
View Code
1 <?xml version="1.0" encoding="UTF-8"?>
2 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
3 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
4 <modelVersion>4.0.0</modelVersion>
5 <parent>
6 <groupId>com.hd</groupId>
7 <artifactId>test-hd-parent</artifactId>
8 <version>0.0.1-SNAPSHOT</version>
9 </parent>
10
11 <artifactId>test-hd-modules</artifactId>
12 <packaging>pom</packaging>
13
14 <modules>
15 <module>test-hd-www</module>
16 <module>test-hd-admin</module>
17 </modules>
18
19 <dependencies>
20
21 <dependency>
22 <groupId>com.hd</groupId>
23 <artifactId>test-hd-foundation</artifactId>
24 </dependency>
25
26 <dependency>
27 <groupId>com.hd</groupId>
28 <artifactId>test-hd-service</artifactId>
29 </dependency>
30 <dependency>
31 <groupId>com.hd</groupId>
32 <artifactId>test-hd-api</artifactId>
33 </dependency>
34
35 <dependency>
36 <groupId>com.hd</groupId>
37 <artifactId>test-hd-resource</artifactId>
38 </dependency>
39
40 <!-- servlet -->
41 <dependency>
42 <groupId>javax.servlet</groupId>
43 <artifactId>jstl</artifactId>
44 </dependency>
45
46 <dependency>
47 <groupId>taglibs</groupId>
48 <artifactId>standard</artifactId>
49 </dependency>
50
51 <dependency>
52 <groupId>junit</groupId>
53 <artifactId>junit</artifactId>
54 </dependency>
55
56 </dependencies>
57 </project> - test-hd-www中的依赖关系
View Code
1 <?xml version="1.0"?>
2 <project
3 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
4 xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
5 <modelVersion>4.0.0</modelVersion>
6 <parent>
7 <groupId>com.hd</groupId>
8 <artifactId>test-hd-modules</artifactId>
9 <version>0.0.1-SNAPSHOT</version>
10 </parent>
11 <artifactId>test-hd-www</artifactId>
12 <packaging>war</packaging>
13
14 <build>
15 <plugins>
16 <!-- define the project compile level -->
17 <plugin>
18 <groupId>org.apache.maven.plugins</groupId>
19 <artifactId>maven-compiler-plugin</artifactId>
20 <version>2.3.2</version>
21 <configuration>
22 <source>1.7</source>
23 <target>1.7</target>
24 </configuration>
25 </plugin>
26 </plugins>
27 <finalName>test-hd-www</finalName>
28 </build>
29
30 </project> - 最后使用maven-update整个工程，右击父工程名--》Maven--》Update Project
打包和发布
- 打包，右击父工程名 test-hd-parent---->Run As--->Maven Install
- 打包web子工程，右击工程名test-hd-www--->Run As ---> Maven Build...---> Goals: clean package--->Run
- 右击工程名test-hd-www，进行刷新，找到war包，放到tomcat的webapps中，启动tomcat，即可访问工程http://localhost:8080/test-hd-www
- 可以去tomcat下面webapps》test-hd-www》WEB-INF》lib中，看到引用的jar包
