java中main方法发送httpPost请求

Release 4.3.1 ------------------- HttpClient 4.3.1 (GA) is a bug fix release that addresses a number of issues reported since release 4.3. Users of HttpClient 4.3 are strongly encouraged to upgrade. Changelog ------------------- * [HTTPCLIENT-1410] Browser compatible hostname verifier no longer rejects *.co.<countrycode>, *.gov.<countrycode>, *.info.<countrycode>, etc as invalid. Contributed by Oleg Kalnichevski <olegk at apache.org> * Ensure X509HostnameVerifier is never null. Contributed by Oleg Kalnichevski <olegk at apache.org> * [HTTPCLIENT-1405] CONNECT HTTP/1.1 requests lack mandatory 'Host' header. Contributed by Oleg Kalnichevski <olegk at apache.org> * [HTTPCLIENT-1402] Cache default User-Agent value. Contributed by yuexiaojun <junedo at qq.com> * [HTTPCLIENT-1398] Fixed invalid OSGi metadata caused by corrupted Maven bundle plugin metadata. Contributed by Oleg Kalnichevski <olegk at apache.org> * [HTTPCLIENT-1399] Fixed NPE in RequestBuilder. Contributed by Oleg Kalnichevski <olegk at apache.org> Release 4.3 Final ------------------- This is the first stable (GA) release of HttpClient 4.3. The most notable enhancements included in this release are: * Support for Java 7 try-with-resources for resource management (connection release.) * Added fluent Builder classes for HttpEntity, HttpRequest, HttpClient and SSLContext instances. * Deprecation of preference and configuration API based on HttpParams interface in favor of constructor injection and plain configuration objects. * Reliance on object immutability instead of access synchronization for thread safety. Several old classes whose instances can be shared by multiple request exchanges have been replaced by immutable equivalents. * DefaultHttpClient, DecompressingHttpClient, CachingHttpClient and similar classes are deprecated in favor of builder classes that produce immutable HttpClient instances. * HttpClient builders now dynamically construct a request execution pipeline tailored specifically to the user configuration by physically excluding unnecessary protocol components. * There is now an option to construct a minimal HttpClient implementation that can only execute basic HTTP message exchanges without redirects, authentication, state management or proxy support. This feature might be of particular use in web crawler development. * There is now option to avoid strict URI syntax for request URIs by executing HTTP requests with an explicitly specified target host. HttpClient will no longer attempt to parse the request URI if it does not need to extract the target host from it. This release also includes all fixes from the stable 4.2.x release branch. Changelog ------------------- * [HTTPCLIENT-1371] Weak ETag Validation is Useful On PUT With If-Match Contributed by James Leigh <james at 3roundstones dot com> * [HTTPCLIENT-1394] Support for Native windows Negotiate/NTLM via JNA Contributed by Ryan McKinley <ryan at apache.org> * [HTTPCLIENT-1384] Expose CacheInvalidator interface. Contributed by Nicolas Richeton <nicolas.richeton at free.fr> * [HTTPCLIENT-1385] Fixed path normalization in CacheKeyGenerator Contributed by James Leigh <james at 3roundstones dot com> * [HTTPCLIENT-1370] Response to non-GET requests should never be cached with the default ResponseCachingPolicy Contributed by James Leigh <james at 3roundstones dot com> * [HTTPCLIENT-1373] OPTIONS and TRACE should not invalidate cache Contributed by James Leigh <james at 3roundstones dot com> * [HTTPCLIENT-1383] HttpClient enters an infinite loop during NTLM authentication if the opposite endpoint keeps responding with a type 2 NTLM response after type 3 MTLM message has already been sent by the client. Contributed by Oleg Kalnichevski <olegk at apache.org> * [HTTPCLIENT-1372] Refactor HttpMultipart, and add RFC6532 mode, so that headers in post are no longer constrained to ASCII values. Contributed by Karl Wright <kwright at apache.org> * [HTTPCLIENT-1377] User principal for non-NTLM authentication is incorrectly generated when using user credentials are specified as NTCredentials Contributed by Gary Gregory <ggregory at apache.org> Release 4.3 BETA2 ------------------- This is the second BETA release of HttpClient 4.3. The most notable features and improvements in the 4.3 branch are: Support for Java 7 try-with-resources for resource management (connection release); fluent Builder classes for HttpEntity, HttpRequest and HttpClient instances, deprecation of preference and configuration API based on HttpParams interface in favor of constructor injection and plain configuration objects, reliance on object immutability instead of access synchronization for thread safety. This release also includes all fixes from the stable 4.2.x release branch. Changelog ------------------- * [HTTPCLIENT-1366] org.apache.http.client.utils.URLEncodedUtils should parse the semicolon as a query parameter separator. Contributed by Gary Gregory <ggregory at apache.org> * [HTTPCLIENT-1365] NPE when ManagedHttpClientConnectionFactory.create(ConnectionConfig) is called with null. Contributed by Gary Gregory <ggregory at apache.org> * [HTTPCLIENT-1362] Better error messages for connect timed out and connection refused exceptions. Contributed by Oleg Kalnichevski <olegk at apache.org> * [HTTPCLIENT-1360] separate out DeflateInputStream as an independent class, so it can be used by others. Contributed by Karl Wright <kwright at apache.org> * [HTTPCLIENT-1359] repeated requests using the same context fail if they redirect. Contributed by James Leigh <james at 3roundstones.com> * [HTTPCLIENT-1354] do not quote algorithm parameter in DIGEST auth response. Contributed by Oleg Kalnichevski <olegk at apache.org> * [HTTPCLIENT-1351] Added utility method to resolve final location from original request, target host and a list of redirects. Contributed by James Leigh <james at 3roundstones.com> * [HTTPCLIENT-1344] Userinfo credentials in URI should not default to preemptive BASIC authentication. Contributed by Oleg Kalnichevski <olegk at apache.org> * [HTTPCLIENT-1345] Useinfo credentials ignored in redirect location header. Contributed by Oleg Kalnichevski <olegk at apache.org> * [HTTPCLIENT-1294] HttpClient to rewrite host name of the redirect location URI in order to avoid circular redirect exception due to host name case mismatch. Contributed by Oleg Kalnichevski <olegk at apache.org> * [HTTPCLIENT-1264] Add support for multiple levels of browser compatibility to BrowserCompatSpec and BrowserCompatSpecFactory. Include constructor argument for IE medium-security compatibility. Contributed by Karl Wright (kwright at apache.org) * [HTTPCLIENT-1349] SSLSocketFactory incorrectly identifies key passed with keystore as the keystore password. Contributed by David Graff <djgraff209 at gmail.com> * [HTTPCLIENT-1346] Ensure propagation of SSL handshake exceptions. Contributed by Pasi Eronen <pe at iki.fi> * [HTTPCLIENT-1343] SSLSocketFactory optional parameters for supported SSL protocols and cipher suites. Contributed by Oleg Kalnichevski <olegk at apache.org> * [HTTPCLIENT-1238] Contribute Bundle Activator And Central Proxy Configuration. Contributed by Simone Tripodi <simonetripodi at apache.org> * [HTTPCLIENT-1299] (regression) cache incorrectly disposes of the underlying cache resource when storing variant entry. Contributed by James Leigh <james at 3roundstones.com> * [HTTPCLIENT-1342] Redirects with underscore character in the location hostname cause "java.lang.IllegalArgumentException: Host name may not be null". Contributed by Oleg Kalnichevski <olegk at apache.org> Release 4.3 BETA1 -