Java: HTTP Client (Apache)
October 3rd, 2008 by jeremychone
Http Client from Apache
- Standards based, pure Java, implementation of HTTP versions 1.0 and 1.1
- Full implementation of all HTTP methods (GET, POST, PUT, DELETE, HEAD, OPTIONS, and TRACE) in an extensible OO framework.
- Supports encryption with HTTPS (HTTP over SSL) protocol.
- Granular non-standards configuration and tracking.
- Transparent connections through HTTP proxies.
- Tunneled HTTPS connections through HTTP proxies, via the CONNECT method.
- Transparent connections through SOCKS proxies (version 4 & 5) using native Java socket support.
- Authentication using Basic, Digest and the encrypting NTLM (NT Lan Manager) methods.
- Plug-in mechanism for custom authentication methods.
- Multi-Part form POST for uploading large files.
- Pluggable secure sockets implementations, making it easier to use third party solutions
- Connection management support for use in multi-threaded applications. Supports setting the maximum total connections as well as the maximum connections per host. Detects and closes stale connections.
- Automatic Cookie handling for reading Set-Cookie: headers from the server and sending them back out in a Cookie: header when appropriate.
- Plug-in mechanism for custom cookie policies.
- Request output streams to avoid buffering any content body by streaming directly to the socket to the server.
- Response input streams to efficiently read the response body by streaming directly from the socket to the server.
- Persistent connections using KeepAlive in HTTP/1.0 and persistance in HTTP/1.1
- Direct access to the response code and headers sent by the server.
- The ability to set connection timeouts.
- HttpMethods implement the Command Pattern to allow for parallel requests and efficient re-use of connections.
- Source code is freely available under the Apache Software License.