在spring reference中提到一个解决spring jar包之间版本冲突的解决方案，原文如下
It is possible to accidentally mix different versions of Spring JARs when using Maven. For example, you may find that a third-party library, or another Spring project, pulls in a transitive dependency to an older release. If you forget to explicitly declare a direct dependency yourself, all sorts of unexpected issues can arise.
To overcome such problems Maven supports the concept of a "bill of materials" (BOM) dependency. You can import the spring-framework-bom in yourdependencyManagement section to ensure that all spring dependencies (both direct and transitive) are at the same version.
在配置spring项目依赖时可以通过引入spring-framework-bom避免项目中的spring jar包及关联依赖的三方jar包之间的版本冲突，引入方式：<dependencyManagement> <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-framework-bom</artifactId> <version>4.1.3.RELEASE</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement> 引入后的另一个好处就是在pom文件中引入spring相关依赖时不用再声明<version>属性，以后直接像下边这样声明就可以了：
<dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> </dependency> <dependencies> PS: Spring官方reference网址 http://docs.spring.io/spring/docs/current/spring-framework-reference/htmlsingle/ 还有就是最近找到一个翻译reference的网址，虽然没有翻译完整有兴趣的也可以看看 http://spring.cndocs.tk/
