导入 BOM pom 时如何覆盖 Spring Boot 中的版本号？

Question

如何覆盖 Spring Boot 导入的版本号，而无需在依赖管理部分手动设置每个工件？

<properties>
    <spring.boot.version>1.5.7.RELEASE</spring.boot.version>
    <jackson.version>2.9.1</jackson.version>
</properties>
<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-dependencies</artifactId>
            <version>${spring.boot.version}</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson</groupId>
            <artifactId>jackson-bom</artifactId>
            <version>${jackson.version}</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

然而，当我运行

mvn dependency:tree "-Dincludes=com.fasterxml.jackson.*" -Dverbose

输出

[INFO] ------------------------------------------------------------------------
[INFO] Building dpt-domain-core 1.0.0
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-dependency-plugin:2.8:tree (default-cli) @ dpt-domain-core ---
[INFO] net.initech.dpt:dpt-domain-core:jar:1.0.0
[INFO] +- com.fasterxml.jackson.core:jackson-annotations:jar:2.8.0:compile
[INFO] +- com.fasterxml.jackson.core:jackson-core:jar:2.8.10:compile
[INFO] +- com.fasterxml.jackson.core:jackson-databind:jar:2.8.10:compile
[INFO] |  +- (com.fasterxml.jackson.core:jackson-annotations:jar:2.8.0:compile - omitted for duplicate)
[INFO] |  \- (com.fasterxml.jackson.core:jackson-core:jar:2.8.10:compile - omitted for duplicate)
[INFO] \- com.fasterxml.jackson.datatype:jackson-datatype-jsr310:jar:2.8.10:compile
[INFO]    +- (com.fasterxml.jackson.core:jackson-annotations:jar:2.8.0:compile - omitted for duplicate)
[INFO]    +- (com.fasterxml.jackson.core:jackson-core:jar:2.8.10:compile - omitted for duplicate)
[INFO]    \- (com.fasterxml.jackson.core:jackson-databind:jar:2.8.10:compile - omitted for duplicate)

其中 2.8.10 是 org.springframework.boot:spring-boot-dependencies:1.5.7.RELEASE:pom 定义的 jackson.version 的值。

但是，如果我明确添加

<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-core</artifactId>
    <version>${jackson.version}</version>
</dependency>
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>${jackson.version}</version>
</dependency>
<dependency>
    <groupId>com.fasterxml.jackson.datatype</groupId>
    <artifactId>jackson-datatype-jsr310</artifactId>
    <version>${jackson.version}</version>
</dependency>
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-annotations</artifactId>
    <version>${jackson.version}</version>
</dependency>

到我的 dependency management 部分，然后它正确解析为：

[INFO] ------------------------------------------------------------------------
[INFO] Building dpt-domain-core 1.0.0
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-dependency-plugin:2.8:tree (default-cli) @ dpt-domain-core ---
[INFO] org.autodatacorp.dpt:dpt-domain-core:jar:1.0.0
[INFO] +- com.fasterxml.jackson.core:jackson-annotations:jar:2.9.1:compile
[INFO] +- com.fasterxml.jackson.core:jackson-core:jar:2.9.1:compile
[INFO] +- com.fasterxml.jackson.core:jackson-databind:jar:2.9.1:compile
[INFO] \- com.fasterxml.jackson.datatype:jackson-datatype-jsr310:jar:2.9.1:compile
[INFO] ------------------------------------------------------------------------

这令人费解，因为这似乎应该相当于对 com.fasterxml.jackson:jackson-bom:2.9.1:pom 执行 import 应该是粘贴内容的等效将该代码手动输入。

我什至试过了

<dependency>                                                                                  
    <groupId>org.springframework.boot</groupId>                                               
    <artifactId>spring-boot-dependencies</artifactId>                                         
    <version>${spring.boot.version}</version>                                                 
    <exclusions>                                                                              
        <exclusion>                                                                           
            <groupId>com.fasterxml.jackson</groupId>                                          
            <artifactId>jackson-bom</artifactId>                                              
        </exclusion>                                                                          
    </exclusions>                                                                             
    <type>pom</type>                                                                          
    <scope>import</scope>                                                                     
</dependency>

但没有效果。

PS - 如果重要的话，我使用的 Maven 是：

Apache Maven 3.3.9 (bb52d8502b132ec0a5a3f4c09453c07478323dc5; 2015-11-10T11:41:47-05:00)
Java version: 9, vendor: Oracle Corporation

Answer 1

您可以重新订购 BOM 导入，这会起作用。将 Jackson BOM 放在 Spring Boot BOM 之前。快速示例 https://github.com/Flaw101/gsonconverter/blob/feature/jackson_override/pom.xml
如果你使用 Spring Boot Parent POM，你只需要覆盖它们的属性 jackson.version 来覆盖其他 frameworks/libraries

Spring Boot，

也记录了这一点

https://docs.spring.io/platform/docs/current/reference/html/getting-started-overriding-versions.html

几个额外的链接，

https://docs.spring.io/spring-boot/docs/current/reference/html/using-boot-build-systems.html#using-boot-maven-parent-pom

https://docs.spring.io/spring-boot/docs/current/reference/html/using-boot-build-systems.html#using-boot-maven-without-a-parent

Answer 2

将 jackson-bom.version 添加到 pom.xml 文件的属性部分应该会更新 jackson 依赖项。这将覆盖 Spring Boot Parent POM 中的 jackson 版本。

<properties>
    <jackson-bom.version>2.12.1</jackson-bom.version>
</properties>

使用jackson.version 是行不通的。请参阅 https://github.com/spring-projects/spring-boot/issues/17808

导入 BOM pom 时如何覆盖 Spring Boot 中的版本号？

How to override the version numbers from Spring Boot when importing a BOM pom?

maven

spring-boot

maven-bom