使用io.spring.platform时,它会管理各类经过集成测试的依赖版本号。
但有的时候,我们想使用指定的版本号,这个时候就需要去覆盖io.spring.platform的版本号。
前面的文章总结过,使用io.spring.platform有两种方式,一种是继承,一种是导入。
一、先来看继承的方式:
io.spring.platform使用Brussels-SR7版本
<parent> <groupId>io.spring.platform</groupId> <artifactId>platform-bom</artifactId> <version>Brussels-SR7</version> </parent>
我们想使用阿里的easyexcel框架,2.0.5版本
<dependency> <groupId>com.alibaba</groupId> <artifactId>easyexcel</artifactId> <version>2.0.5</version> </dependency>
这个时候就出现了依赖问题,easyexcel 2.0.5版本会依赖poi 3.17版本,而io.spring.platform管理的依赖却是3.15版本。
由于依赖都是io.spring.platform管理的,所以打包时会强制使用poi 3.15版本,这会导致代码执行时找不到对应的新版本class,执行失败。
在继承方式使用io.spring.platform时,解决方法也比较简单,覆盖io.spring.platform对poi的版本号管理即可
<properties> <poi.version>3.17</poi.version> </properties>
这个时候在来看依赖关系,发现poi的版本引入变成了3.17
这样就解决了问题。
附上完整pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com</groupId> <artifactId>springboot-dependency7</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <name>springboot-dependency7</name> <url>http://maven.apache.org</url> <parent> <groupId>io.spring.platform</groupId> <artifactId>platform-bom</artifactId> <version>Brussels-SR7</version> </parent> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <poi.version>3.17</poi.version> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>easyexcel</artifactId> <version>2.0.5</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <configuration> <mainClass>com.springboot_dependency7.main.Applicaiton</mainClass> </configuration> </plugin> </plugins> </build> </project>
二、再来看import的方式
<dependencyManagement> <dependencies> <dependency> <groupId>io.spring.platform</groupId> <artifactId>platform-bom</artifactId> <version>Brussels-SR7</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement>
同样引入easyexcel 2.0.5依赖
<dependency> <groupId>com.alibaba</groupId> <artifactId>easyexcel</artifactId> <version>2.0.5</version> </dependency>
这个时候poi的版本被强制使用3.15
要覆盖io.spring.platform的版本号需要在pom.xml里dependencyManagement节点io.spring.platform引入的前面加上poi的引入
<dependencyManagement> <dependencies> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi</artifactId> <version>3.17</version> </dependency> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-ooxml</artifactId> <version>3.17</version> </dependency> <dependency> <groupId>io.spring.platform</groupId> <artifactId>platform-bom</artifactId> <version>Brussels-SR7</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement>
再来看poi的依赖
版本已经变成了3.17,解决问题。
附上完整pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com</groupId> <artifactId>springboot-dependency8</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <name>springboot-dependency8</name> <url>http://maven.apache.org</url> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> <dependencyManagement> <dependencies> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi</artifactId> <version>3.17</version> </dependency> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-ooxml</artifactId> <version>3.17</version> </dependency> <dependency> <groupId>io.spring.platform</groupId> <artifactId>platform-bom</artifactId> <version>Brussels-SR7</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>easyexcel</artifactId> <version>2.0.5</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <configuration> <mainClass>com.springboot_dependency8.main.Applicaiton</mainClass> </configuration> </plugin> </plugins> </build> </project>