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

 	    
            org.apache.httpcomponents
            httpasyncclient
            4.1.4
        
        
            org.apache.httpcomponents
            httpclient
            4.5.6
        
        
            org.apache.httpcomponents
            httpcore
            4.4.10
        
        
            org.apache.httpcomponents
            httpcore-nio
            4.4.10