mavan 依赖的问题

Question

假如我的pom.xml如下：

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>test</groupId>
            <artifactId>test</artifactId>
            <version>1.1.11</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>
<dependencies>
    <dependency>
        <groupId>aa</groupId>
        <artifactId>aa</artifactId>
    </dependency>
</dependencies>

test的pom如下：

 <properties>
    <aa.version>1.0.6</aa.version>
</properties>
<dependencyManagement>
    <dependencies>
            <dependency>
            <groupId>aa</groupId>
            <artifactId>aa</artifactId>
            <version>${aa.version}</version>
        </dependency>
    </dependencies>
</dependencyManagement>

如果我在我的pom文件中做修改

<dependencies>
    <dependency>
        <groupId>aa</groupId>
        <artifactId>aa</artifactId>
        <version>2.3</version>
    </dependency>
</dependencies>

那么我的项目的aa依赖的版本是2.3还是1.0.6呢？

Answer 1

依赖这个：

<dependencies>
    <dependency>
        <groupId>aa</groupId>
        <artifactId>aa</artifactId>
        <version>2.3</version>
    </dependency>
</dependencies>

显式得指定了version，就不会去dependencyManagement里找了

Answer 2

jar包名称相同maven依赖会取最新的版本

Answer 3

依赖两条原则
1.优先解析路径短的
2.如果路径长的，先声明先优先