httpclient4.3 Tool Class

httpclient4.3 Java Tools class.

。。

。 A tool class was developed for the project. The httpclient request operation, which is often used, should suffice.

Tool class: http://download.csdn.net/detail/ruishenh/7421641

Package Com.ruishenh.utils;import Java.io.ioexception;import Java.io.unsupportedencodingexception;import Java.net.urisyntaxexception;import Java.nio.charset.charset;import Java.util.arraylist;import Java.util.HashMap; Import Java.util.list;import Java.util.map;import Org.apache.commons.httpclient.httpstatus;import Org.apache.http.httpentity;import Org.apache.http.httpexception;import Org.apache.http.httpresponse;import Org.apache.http.namevaluepair;import Org.apache.http.client.clientprotocolexception;import Org.apache.http.client.httpclient;import Org.apache.http.client.config.requestconfig;import Org.apache.http.client.entity.urlencodedformentity;import Org.apache.http.client.methods.httpget;import Org.apache.http.client.methods.httppost;import Org.apache.http.client.methods.httprequestbase;import Org.apache.http.client.utils.urlencodedutils;import Org.apache.http.impl.client.closeablehttpclient;import Org.apache.http.impl.client.httpclientbuilder;import Org.apache.http.impl.conn.PoolInghttpclientconnectionmanager;import Org.apache.http.message.basicnamevaluepair;import Org.apache.http.protocol.http;import Org.apache.http.util.entityutils;public class HttpClientUtils {/** * connection time-out * * public static final int Connection_timeout_ms = 360000;/** * Read Data time-out time */public static final int so_timeout_ms = 360000;pub Lic static final String content_type_json_charset = "APPLICATION/JSON;CHARSET=GBK";p ublic static final string Content_ Type_xml_charset = "APPLICATION/XML;CHARSET=GBK";/** * httpclient character set used when reading content */public static final String Content_ CHARSET = "GBK";p ublic static final CHARSET utf_8 = Charset.forname ("UTF-8");p ublic static final CHARSET GBK = charset.for Name (content_charset);/** * Simple Get call * * @param URL * @param params * @return * @throws clientprotocolexception * @throws IOException * @throws urisyntaxexception */public static string Simplegetinvoke (string url, map<string, string> par AMS) throws Clientprotocolexception, IOException, urisyntaxexception {return SiMplegetinvoke (URL, params,content_charset);} /** * Simple Get call * * @param URL * @param params * @return * @throws clientprotocolexception * @throws IOException * @throws URISyntaxException */public static string Simplegetinvoke (string url, map<string, string> params,string CharSet) Throws Clientprotocolexception, IOException, urisyntaxexception {HttpClient client = Buildhttpclient (false); HttpGet get = buildhttpget (URL, params); HttpResponse response = Client.execute (get); Assertstatus (response); httpentity entity = response.getentity (), if (entity! = null) {String returnstr = entityutils.tostring (Entity,charset); return RETURNSTR;} return null;} /** * Simple Post call * * @param URL * @param params * @return * @throws urisyntaxexception * @throws clientprotocolexception * @throws ioexception */public static string simplepostinvoke (String URL, map<string, string> params) throws URISyntaxException, Clientprotocolexception, IOException {return Simplepostinvoke (URL, params,content_charset);} /** *Simple Post call * * @param URL * @param params * @return * @throws urisyntaxexception * @throws clientprotocolexception * @throw s IOException */public static string simplepostinvoke (String URL, map<string, string> params,string CharSet) throws URISyntaxException, Clientprotocolexception, IOException {HttpClient client = Buildhttpclient (false); HttpPost Postmethod = buildhttppost (URL, params); HttpResponse response = Client.execute (Postmethod); Assertstatus (response); httpentity entity = response.getentity (), if (entity! = null) {String RETURNSTR = entityutils.tostring (entity, CharSet); re Turn returnstr;} return null;} /** * Create HttpClient * * @param ismultithread * @return */public static HttpClient buildhttpclient (Boolean ismultithread) { Closeablehttpclient client;if (ismultithread) client = Httpclientbuilder.create (). Setconnectionmanager (New Poolinghttpclientconnectionmanager ()). build (); elseclient = Httpclientbuilder.create (). build ();//Set proxy server address and port/ /Client.gethostconfiguration (). SetProxy ("Proxy_host_addr ", proxy_port); return client;} /** * Build HttpPost Object * * @param URL * @param headers * @return * @throws unsupportedencodingexception * @throws Urisyntaxex Ception */public static httppost buildhttppost (String URL, map<string, string> params) throws Unsupportedencodingexception, urisyntaxexception {assert.notnull (URL, "URL cannot be null when building HttpPost"); HttpPost post = new HttpPost (URL); Setcommonhttpmethod (POST);  Httpentity he = null;if (params! = null) {list<namevaluepair> Formparams = new arraylist<namevaluepair> (); for (String Key:params.keySet ()) {Formparams.add (New Basicnamevaluepair (Key, Params.get (key)));} he = new Urlencodedformentity (Formparams, GBK);p ost.setentity (He); In requestcontent.process, the length of the message body is written to itself, without writing itself. Write instead test error//Setcontentlength (post, he); return post;} /** * Build HttpGet Object * * @param URL * @param headers * @return * @throws urisyntaxexception */public static HttpGet Buildhtt Pget (String URL, map<string, string> params) throws URISyntaxException {assert.notnull (URL, "URL cannot be null when building HttpGet"); HttpGet get = new HttpGet (buildgeturl (URL, params)); return get;} /** * Build GETURL str * * @param URL * @param params * @return */private static string buildgeturl (String URL, map<st Ring, string> params) {StringBuffer uristr = new StringBuffer (URL); if (params! = null) {list<namevaluepair> PS = New Arraylist<namevaluepair> (); for (String Key:params.keySet ()) {Ps.add (New Basicnamevaluepair (Key, Params.get (key)));} Uristr.append ("?"); Uristr.append (Urlencodedutils.format (PS, utf_8));} return uristr.tostring ();} /** * Set HttpMethod Universal configuration * * @param httpmethod */public static void Setcommonhttpmethod (Httprequestbase httpmethod) {httpMe Thod.setheader (HTTP. Content_encoding, Content_charset);//setting//Contextcoding//httpmethod.setheader (HTTP. Charset_param, Content_charset);//Httpmethod.setheader (HTTP. Content_Type, Content_type_json_charset);//Httpmethod.setheader (HTTP. Content_Type, Content_type_xml_charset);} /** * Set the length of the message body setting messagebody length * * @param httpmethod * @param he */public static void Setcontentlength (Httprequestbase httpmethod , httpentity He) {if (he = = null) {return;} Httpmethod.setheader (HTTP. Content_len, String.valueof (He.getcontentlength ()));} /** * Build Public requestconfig * * @return */public static requestconfig buildrequestconfig () {//Set request and transfer timeout Requestconfig Reque Stconfig = Requestconfig.custom (). SetSocketTimeout (So_timeout_ms). Setconnecttimeout (Connection_timeout_ms). Build (); return requestconfig;} /** * Strong authentication must be 200 state otherwise reported exception * @param res * @throws httpexception */staticvoid Assertstatus (HttpResponse res) throws Ioexceptio N{assert.notnull (res, "HTTP response object is null"); Assert.notnull (Res.getstatusline (), "HTTP response object status is null"), switch (Res.getstatusline (). Getstatuscode ()) {case Httpstatus.sc_ok://case httpstatus.sc_created://case httpstatus.sc_accepted://case HttpStatus.SC_NON_ Authoritative_information://case httpstatus.sc_no_content://case httpstatus.sc_reset_content://case HttpStatus.SC _partial_content://case httpstatus.sc_multi_status:break;default:throw New IOException ("Server response status exception, failed.");}} Private Httpclientutils () {}public static void main (string[] args) throws Clientprotocolexception, IOException, urisyntaxexception {System.out.println (Simplegetinvoke ("http://www.baidu.com", New Hashmap<string, string> () ));}}

httpclient4.3 Tool Class