Apache Http Client 4

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Name Email Dev Id Roles Organization; Ortwin Glueck: oglueck -at- apache.org: oglueck: Emeritus PMC: Oleg Kalnichevski: olegk -at- apache.org: olegk: Committer, PMC.

  1. HttpClient Overview. The Hyper-Text Transfer Protocol (HTTP) is perhaps the most significant protocol used on the Internet today. Web services, network-enabled appliances and the growth of network computing continue to expand the role of the HTTP protocol beyond user-driven web browsers, while increasing the number of applications that require HTTP support.
  2. Preemptive Proxy Authentication with HTTP Tunnel / HTTPS Connection in Apache HttpClient 4.3.1. Java httpClient 4.3.6 basic Authentication with complete URI and scheme. Preemptive Authentication with HttpClient 4.3 and Solr 5. Hot Network Questions Iterative Radix-2 FFT in C.
  3. When upgrading the dependency to version 4.4 of HttpClient, I see that all the above constants are deprecated. The deprecation note in JavaDoc mentioned to use org.apache.http.conn.ssl.DefaultHostnameVerifier. Reading the docs, I assume that DefaultHostnameVerifier is a direct replacement to STRICTHOSTNAMEVERIFIER.

The Apache HttpComponents project is responsible for creating and maintaining a toolset of low level Java components focused on HTTP and associated protocols.

Apache Http Client 4.5 Example

This project functions under the Apache Software Foundation (http://www.apache.org), and is part of a larger community of developers and users.

HttpComponents Overview

The Hyper-Text Transfer Protocol (HTTP) is perhaps the most significant protocol used on the Internet today. Web services, network-enabled appliances and the growth of network computing continue to expand the role of the HTTP protocol beyond user-driven web browsers, while increasing the number of applications that require HTTP support.

Designed for extension while providing robust support for the base HTTP protocol, the HttpComponents may be of interest to anyone building HTTP-aware client and server applications such as web browsers, web spiders, HTTP proxies, web service transport libraries, or systems that leverage or extend the HTTP protocol for distributed communication.

HttpComponents Structure

ClientApache Http Client 4

Apache Httpclient Jar

HttpComponents Core

HttpCore is a set of low level HTTP transport components that can be used to build custom client and server side HTTP services with a minimal footprint. HttpCore supports two I/O models: blocking I/O model based on the classic Java I/O and non-blocking, event driven I/O model based on Java NIO.

HttpComponents Client

Apache Httpclient Https

HttpClient is a HTTP/1.1 compliant HTTP agent implementation based on HttpCore. It also provides reusable components for client-side authentication, HTTP state management, and HTTP connection management. HttpComponents Client is a successor of and replacement for Commons HttpClient 3.x. Users of Commons HttpClient are strongly encouraged to upgrade.

Apache Http Client 4.5.9

Commons HttpClient (legacy)

Apache Httpclient 405

Commons HttpClient 3.x codeline is at the end of life. All users of Commons HttpClient 3.x are strongly encouraged to upgrade to HttpClient 4.1.