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maven中的传递依赖和传递依赖的解除

例如创建三个maven工程A B C

pom文件分别为

 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 
 5   <groupId>org.lonecloud.A</groupId>
 6   <artifactId>A</artifactId>
 7   <version>0.0.1-SNAPSHOT</version>
 8   <packaging>jar</packaging>
 9 
10   <name>A</name>
11   <url>http://maven.apache.org</url>
12 
13   <properties>
14     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
15   </properties>
16 
17   <dependencies>
18     <dependency>
19       <groupId>junit</groupId>
20       <artifactId>junit</artifactId>
21       <version>3.8.1</version>
22       <scope>test</scope>
23     </dependency>
24   </dependencies>
25 </project>

View Code

 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 
 5     <groupId>org.lonecloud.B</groupId>
 6     <artifactId>B</artifactId>
 7     <version>0.0.1-SNAPSHOT</version>
 8     <packaging>jar</packaging>
 9 
10     <name>B</name>
11     <url>http://maven.apache.org</url>
12 
13     <properties>
14         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
15     </properties>
16 
17     <dependencies>
18         <dependency>
19             <groupId>junit</groupId>
20             <artifactId>junit</artifactId>
21             <version>3.8.1</version>
22             <scope>test</scope>
23         </dependency>
24         <!-- B依赖于A -->
25         <dependency>
26             <groupId>org.lonecloud.A</groupId>
27             <artifactId>A</artifactId>
28             <version>0.0.1-SNAPSHOT</version>
29         </dependency>
30     </dependencies>
31 </project>

View Code

 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 
 5     <groupId>org.lonecloud.C</groupId>
 6     <artifactId>C</artifactId>
 7     <version>0.0.1-SNAPSHOT</version>
 8     <packaging>jar</packaging>
 9 
10     <name>C</name>
11     <url>http://maven.apache.org</url>
12 
13     <properties>
14         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
15     </properties>
16 
17     <dependencies>
18         <dependency>
19             <groupId>junit</groupId>
20             <artifactId>junit</artifactId>
21             <version>3.8.1</version>
22             <scope>test</scope>
23         </dependency>
24         <!--C依赖于B但是会将A的依赖传递进来 -->
25         <dependency>
26             <groupId>org.lonecloud.B</groupId>
27             <artifactId>B</artifactId>
28             <version>0.0.1-SNAPSHOT</version>
29         </dependency>
30     </dependencies>
31 </project>

View Code

当我只需要B的依赖而不需要A的依赖的时候可以使用

            <!-- 此标签的作用是可以将B的传递依赖关系A不传递给C -->
            <exclusions>
                <exclusion>
                    <groupId>org.lonecloud.A</groupId>
                    <artifactId>A</artifactId>
                </exclusion>
            </exclusions>

排除对A的依赖

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原文地址：https://www.cnblogs.com/lonecloud/p/5692036.html