Maven+shade 打包运行异常，Configuration problem: Unable to locate Spring NamespaceHandler for XML schema namespace [http://www.springframework.org/schema/context] Offending resource: class path resource [bus/spring/applicationContext.xml]
使用Maven + shade 打包成jar 时，启动应用报如下错误：
org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Unable to locate Spring NamespaceHandler for XML schema namespace [http://www.springframework.org/schema/context] Offending resource: class path resource [bus/spring/applicationContext.xml]
stackoverflow 查到如下信息：
http://stackoverflow.com/questions/1937767/spring-3-0-unable-to-locate-spring-namespacehandler-for-xml-schema-namespace解决方案：在maven-shade-plugin 的 configuration 的 transformers 中加入spring 打包的 META-INF信息即可
<plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-shade-plugin</artifactId> <version>1.4</version> <executions> <execution> <phase>package</phase> <goals> <goal>shade</goal> </goals> <configuration> <transformers> <!-- 加入以下段落 --> <transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer"> <resource>META-INF/spring.handlers</resource> </transformer> <transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer"> <resource>META-INF/spring.schemas</resource> </transformer>
<!-- 加入以上段落 -->
<transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer"> <mainClass>start.StartGameServer</mainClass> </transformer> </transformers> </configuration> </execution> </executions> </plugin>