关于导入电信天翼物联网sdk（ctg-ag-sdk-core，ag-sdk-biz-58193.tar.gz）运行时报NoClassDefFoundError

可以看到RequestFormat依赖了org.apache.http.entity.ContentType
所以导致报NoClassDefFoundError
加以下坐标在pom.xml中就能解决这个问题了

 	    dependency>
            groupId>org.apache.httpcomponentsgroupId>
            artifactId>httpasyncclientartifactId>
            version>4.1.4version>
        dependency>
        dependency>
            groupId>org.apache.httpcomponentsgroupId>
            artifactId>httpclientartifactId>
            version>4.5.6version>
        dependency>
        dependency>
            groupId>org.apache.httpcomponentsgroupId>
            artifactId>httpcoreartifactId>
            version>4.4.10version>
        dependency>
        dependency>
            groupId>org.apache.httpcomponentsgroupId>
            artifactId>httpcore-nioartifactId>
            version>4.4.10version>
        dependency>