http访问第三方工具类，接口开发使用类

java开发工具类httpclient-4.5.jar，httpcore-4.4.6.jar，commons-logging-1.2.jar，commons-httpclient-3.1.jar，commons-logging-1.2.jar，commons-codec-1.9.jar，commons-collections-3.2.2.jar，commons-fileupload.jar，commons-validator.jar，log4j-1.2.14.jar