HttpClient官方最新jar包。

android使用HttpClient官方最新的jar包，下载把 httpcore-4.3.2.jar和httpmime-4.3.5.jar放在项目工程的libs下就可以使用MultipartEntityBuilder类实现httpClient

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 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2017-09-02 14:40  httpcomponents-client-4.3.5\
     目录           0  2017-09-02 14:40  httpcomponents-client-4.3.5\examples\
     目录           0  2017-09-02 14:40  httpcomponents-client-4.3.5\examples\org\
     目录           0  2017-09-02 14:40  httpcomponents-client-4.3.5\examples\org\apache\
     目录           0  2017-09-02 14:40  httpcomponents-client-4.3.5\examples\org\apache\http\
     目录           0  2017-09-02 14:40  httpcomponents-client-4.3.5\examples\org\apache\http\client\
     目录           0  2017-09-02 14:40  httpcomponents-client-4.3.5\examples\org\apache\http\client\fluent\
     文件        3232  2014-07-30 16:55  httpcomponents-client-4.3.5\examples\org\apache\http\client\fluent\FluentAsync.java
     文件        3336  2014-07-30 16:55  httpcomponents-client-4.3.5\examples\org\apache\http\client\fluent\FluentExecutor.java
     文件        1847  2014-07-30 16:55  httpcomponents-client-4.3.5\examples\org\apache\http\client\fluent\FluentQuickStart.java
     文件        2782  2014-07-30 16:55  httpcomponents-client-4.3.5\examples\org\apache\http\client\fluent\FluentRequests.java
     文件        4032  2014-07-30 16:55  httpcomponents-client-4.3.5\examples\org\apache\http\client\fluent\FluentResponseHandling.java
     目录           0  2017-09-02 14:40  httpcomponents-client-4.3.5\examples\org\apache\http\examples\
     目录           0  2017-09-02 14:40  httpcomponents-client-4.3.5\examples\org\apache\http\examples\client\
     文件        2451  2014-07-30 16:54  httpcomponents-client-4.3.5\examples\org\apache\http\examples\client\ClientAbortMethod.java
     文件        2974  2014-07-30 16:54  httpcomponents-client-4.3.5\examples\org\apache\http\examples\client\ClientAuthentication.java
     文件        3304  2014-07-30 16:54  httpcomponents-client-4.3.5\examples\org\apache\http\examples\client\ClientChunkEncodedPost.java
     文件       13393  2014-07-30 16:54  httpcomponents-client-4.3.5\examples\org\apache\http\examples\client\ClientConfiguration.java
     文件        3405  2014-07-30 16:54  httpcomponents-client-4.3.5\examples\org\apache\http\examples\client\ClientConnectionRelease.java
     文件        3283  2014-07-30 16:54  httpcomponents-client-4.3.5\examples\org\apache\http\examples\client\ClientCustomContext.java
     文件        3817  2014-07-30 16:54  httpcomponents-client-4.3.5\examples\org\apache\http\examples\client\ClientCustomSSL.java
     文件        4678  2014-07-30 16:54  httpcomponents-client-4.3.5\examples\org\apache\http\examples\client\ClientEvictExpiredConnections.java
     文件        2796  2014-07-30 16:54  httpcomponents-client-4.3.5\examples\org\apache\http\examples\client\ClientExecuteProxy.java
     文件        4916  2014-07-30 16:54  httpcomponents-client-4.3.5\examples\org\apache\http\examples\client\ClientExecuteSOCKS.java
     文件        4229  2014-07-30 16:54  httpcomponents-client-4.3.5\examples\org\apache\http\examples\client\ClientFormLogin.java
     文件        4872  2014-07-30 16:54  httpcomponents-client-4.3.5\examples\org\apache\http\examples\client\ClientMultiThreadedExecution.java
     文件        4032  2014-07-30 16:54  httpcomponents-client-4.3.5\examples\org\apache\http\examples\client\ClientPreemptiveBasicAuthentication.java
     文件        4321  2014-07-30 16:54  httpcomponents-client-4.3.5\examples\org\apache\http\examples\client\ClientPreemptiveDigestAuthentication.java
     文件        3393  2014-07-30 16:54  httpcomponents-client-4.3.5\examples\org\apache\http\examples\client\ClientProxyAuthentication.java
     文件        5532  2014-07-30 16:54  httpcomponents-client-4.3.5\examples\org\apache\http\examples\client\ClientWithRequestFuture.java
     文件        3235  2014-07-30 16:54  httpcomponents-client-4.3.5\examples\org\apache\http\examples\client\ClientWithResponseHandler.java
............此处省略35个文件信息