Gradle解决版本冲突问题

心已赠人 2021-07-24 15:14 831阅读 0赞

**一 版本冲突例子**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70][]

**二 解决冲突**

*  查看依赖报告
 *  排除传递性依赖
 *  强制一个版本（Gradle默认依赖高版本）

**三 解决方法**

1 修改默认解决策略

configurations.all{
        resolutionStrategy{
            failOnVersionConflict()
        }
    }

通过这个配置可以发现版本冲突。

2 排除传递性依赖

compile('org.hibernate:hibernate-core:3.6.3.Final'){
        exclude group:"org.slf4j",module:"slf4j-api"
    }

3 强制指定一个版本

configurations.all{
        resolutionStratety{
            force 'org.slf4j:slf4j-api:1.7.24'
        }
    }

**四 实战**

代码参考：[https://github.com/cakin24/todo][https_github.com_cakin24_todo]

1 添加一个hibernate依赖

dependencies {
        compile 'org.hibernate:hibernate-core:3.6.3.Final'
        compile group: 'ch.qos.logback', name: 'logback-classic', version: '1.2.3'
        testCompile group: 'junit', name: 'junit', version: '4.12'
    }

2 查看依赖关系

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70 1][]

3 另外一种查看版本的方法

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70 2][]

结果输出如下

compile - Dependencies for source set 'main' (deprecated, use 'implementation ' instead).
    +--- org.hibernate:hibernate-core:3.6.3.Final
    |    +--- antlr:antlr:2.7.6
    |    +--- commons-collections:commons-collections:3.1
    |    +--- dom4j:dom4j:1.6.1
    |    +--- org.hibernate:hibernate-commons-annotations:3.2.0.Final
    |    |    \--- org.slf4j:slf4j-api:1.5.8 -> 1.7.25
    |    +--- org.hibernate.javax.persistence:hibernate-jpa-2.0-api:1.0.0.Final
    |    +--- javax.transaction:jta:1.1
    |    \--- org.slf4j:slf4j-api:1.6.1 -> 1.7.25
    \--- ch.qos.logback:logback-classic:1.2.3
         +--- ch.qos.logback:logback-core:1.2.3
         \--- org.slf4j:slf4j-api:1.7.25

可以清楚的看到版本被gradle强制变换为最高版本：org.slf4j:slf4j-api:1.7.25

4 版本出现了冲突，我们制定策略，强制构建失败

// 强制构建失败
    configurations.all{
        resolutionStrategy{
            failOnVersionConflict()
        }
    }
    
    repositories {
        // 配置多个仓库，按顺序查找，找到为止
        // 本地仓库
        mavenLocal()
        // 中央仓库
        mavenCentral()
    }
    
    dependencies {
        // 添加hibernate依赖
        compile 'org.hibernate:hibernate-core:3.6.3.Final'
        compile group: 'ch.qos.logback', name: 'logback-classic', version: '1.2.3'
        testCompile group: 'junit', name: 'junit', version: '4.12'
    }

下面是构建失败的结果

FAILURE: Build failed with an exception.
    
    
    * What went wrong:
    Could not resolve all dependencies for configuration ':compileClasspath'.
    > A conflict was found between the following modules:
       - org.slf4j:slf4j-api:1.6.1
       - org.slf4j:slf4j-api:1.7.25
       - org.slf4j:slf4j-api:1.5.8

5 通过排除传递性依赖解决上面构建失败问题

sourceCompatibility = 1.8
    // 强制构建失败
    configurations.all{
        resolutionStrategy{
            failOnVersionConflict()
        }
    }
    
    
    repositories {
        // 配置多个仓库，按顺序查找，找到为止
        // 本地仓库
        mavenLocal()
        // 中央仓库
        mavenCentral()
    }
    
    
    dependencies {
        // 排除hibernate对slf4j-api传递性依赖
        compile ('org.hibernate:hibernate-core:3.6.3.Final'){
            exclude group:"org.slf4j",module:"slf4j-api"
        }
        compile group: 'ch.qos.logback', name: 'logback-classic', version: '1.2.3'
        testCompile group: 'junit', name: 'junit', version: '4.12'
    }

查看传递性依赖是否消失

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70 3][]

再次构建可以成功。

6 强制指定一个版本解决版本冲突

sourceCompatibility = 1.8
    
    
    configurations.all{
        resolutionStrategy{
            // 强制构建失败
            failOnVersionConflict()
            // 强制指定一个版本解决版本冲突
            force 'org.slf4j:slf4j-api:1.7.24'
        }
    }
    
    
    repositories {
        // 配置多个仓库，按顺序查找，找到为止
        // 本地仓库
        mavenLocal()
        // 中央仓库
        mavenCentral()
    }
    
    
    dependencies {
        // 添加hibernate依赖
        compile ('org.hibernate:hibernate-core:3.6.3.Final'){
    //        exclude group:"org.slf4j",module:"slf4j-api"
        }
        compile group: 'ch.qos.logback', name: 'logback-classic', version: '1.2.3'
        testCompile group: 'junit', name: 'junit', version: '4.12'
    }

7 查看版本依赖关系

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70 4][]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70]: /images/20210724/5bc02828455d467fa3912c71cdce6ed9.png
[https_github.com_cakin24_todo]: https://github.com/cakin24/todo
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70 1]: /images/20210724/e3ba77638663418eb8d47a33b89ee9c9.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70 2]: /images/20210724/6058f82cc7914239bc5dfef3e485c2f7.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70 3]: /images/20210724/e89a3781d6aa463d9c22bc9d5994cb6a.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70 4]: /images/20210724/77fda441e6264ee3be7ac7cce9ff0b05.png