Java:http request (Code explanation)

java native API

public class HttpRequest {/** * a request to send a GET method to a specified URL * * @param URL * Send the requested URL * @param     param * Request parameters, request parameters should be in the form of name1=value1&name2=value2.        * The response result of the remote resource represented by the @return URL */public static string Sendget (string URL, string param) {string result = "";        BufferedReader in = null;            try {String urlnamestring = URL + "?" + param;            URL realurl = new URL (urlnamestring);            The connection between open and URL urlconnection connection = Realurl.openconnection ();            Set the generic request attribute Connection.setrequestproperty ("accept", "*/*");            Connection.setrequestproperty ("Connection", "keep-alive"); Connection.setrequestproperty ("User-agent", "mozilla/4.0" (compatible; MSIE 6.0; Windows NT 5.1;            SV1) ");            Establish the actual connection connection.connect (); Get all response header fields Map<string, list<string>> Map = Connection.getheaderfielDS (); Traverse all response header fields for (String Key:map.keySet ()) {System.out.println (key + "--->" + map.get (key            ));                    }//define BufferedReader input stream to read the response of the URL in = new BufferedReader (New InputStreamReader (            Connection.getinputstream ()));            String Line;            while (line = In.readline ()) = null) {result + = line; }} catch (Exception e) {System.out.println ("Send GET request exception!)            "+ e);        E.printstacktrace (); }//Use finally block to close the input stream finally {try {if (in! = null) {In.clos                E ();            }} catch (Exception E2) {e2.printstacktrace ();    }} return result;            /** * Request to send a POST method to the specified URL * * @param URL * Send the requested URL * @param param *     Request parameters, request parameters should be in the form of name1=value1&name2=value2. * Represented by @returnResponse result of remote resource */public static string Sendpost (string url, string param) {printwriter out = null;        BufferedReader in = null;        String result = "";            try {URL realurl = new URL (URL);            The connection between open and URL URLConnection conn = realurl.openconnection ();            Set the generic request attribute Conn.setrequestproperty ("accept", "*/*");            Conn.setrequestproperty ("Connection", "keep-alive"); Conn.setrequestproperty ("User-agent", "mozilla/4.0" (compatible; MSIE 6.0; Windows NT 5.1;            SV1) ");            The Send POST request must be set to the following two lines conn.setdooutput (true);            Conn.setdoinput (TRUE);            Gets the output stream corresponding to the URLConnection object out = new PrintWriter (Conn.getoutputstream ());            Send request parameter out.print (param);            Flush output Stream Buffer Out.flush (); Defines the BufferedReader input stream to read the response of the URL in = new BufferedReader (New InputStreamReader (CONN.GETINPUtstream ()));            String Line;            while (line = In.readline ()) = null) {result + = line; }} catch (Exception e) {System.out.println ("send POST request exception!            "+e);        E.printstacktrace (); }//Use finally block to close the output stream, input stream finally{try{if (out!=null) {Out.close                ();                } if (In!=null) {in.close ();            }} catch (IOException ex) {ex.printstacktrace ();    }} return result; }/** * @param args */public static void main (string[] args) {//TODO auto-generated method Stu b//Send GET request//String S=httprequest.sendget ("Http://ws.webxml.com.cn/WebServices/MobileCodeWS.asmx/getMob        Ilecodeinfo "," mobilecode=13069208531&userid= ");//System.out.println (s); Send a POST request String sr=httprequest.sendpost ("http:Ws.webxml.com.cn/webservices/mobilecodews.asmx/getmobilecodeinfo "," mobilecode=13069208531&userid= ");    System.out.println (SR); }}

The

HttpClient requires a jar package:

public class Httputils {private final static Logger Logger = Logger.getlogger (Httputils.class);     Private final static String Operater_name = "http Operation" ";     Private final static int SUCCESS = 200;     Private final static String UTF8 = "UTF-8";     Private HttpClient client;     Private final String Respondtypexml = "application/x-www-form-urlencoded";     Private final String Respondtypejson = "Application/json;charse=utf-8";     private static Httputils instance = new Httputils ();         Private Httputils () {Httpconnectionmanager Httpconnectionmanager = new Multithreadedhttpconnectionmanager ();         Httpconnectionmanagerparams params = Httpconnectionmanager.getparams ();         Params.setconnectiontimeout (5000);         Params.setsotimeout (20000);         Params.setdefaultmaxconnectionsperhost (1000);         Params.setmaxtotalconnections (1000);         Client = new HttpClient (Httpconnectionmanager);         Client.getparams (). Setcontentcharset (UTF8); Client.gEtparams (). Sethttpelementcharset (UTF8);         } public static String get (URL url) {return instance.doget (URL);        } private String doget (url url) {Long beginTime = System.currenttimemillis ();        String respstr = "";        HttpMethod method = null;            try {logger.info (operater_name + "Start get communication, target host:" + URL);            method = new GetMethod (url.tostring ());            Chinese transcoding method.getparams (). Setcontentcharset (UTF8);            try {Client.executemethod (method);                        } catch (HttpException e) {logger.error (new StringBuffer ("Send HTTP get to \ r \ n"). Append (URL)            . Append ("\r\nhttp exception \ r \ n"), E);                        } catch (IOException e) {logger.error (new StringBuffer ("Send HTTP get to \ r \ n"). Append (URL)            . Append ("\r\nio exception \ r \ n"), E); } if (Method.getstatuscode () = = SUCCESS) {respstr = Method.getresponsebodyasstrING ();            } logger.info (Operater_name + "Communication Complete, Return code:" + Method.getstatuscode ());            Logger.info (Operater_name + "return content:" + method.getresponsebodyasstring ()); Logger.info (Operater_name + "End:        Return Result: "+ respstr);        } catch (Exception e) {logger.info (Operater_name, E);            }finally{if (Method! = null) {method.releaseconnection ();        }} Long EndTime = System.currenttimemillis ();        Logger.info (operater_name + "Total time:" + (Endtime-begintime) + "MS");    return respstr; }/** * POST request */public static string post (URL url, String content) {return instance.dopost (URL, CO    Ntent);        } private string doPost (url url, String content) {Long beginTime = System.currenttimemillis ();        String respstr = "";        Postmethod post = null;           try {logger.info (operater_name + "start post communication, target host:" + url.tostring ()); Logger.info ("Communication content:" + content);            Post = new Postmethod (url.tostring ());            Requestentity requestentity = new stringrequestentity (content, Respondtypexml, UTF8);            Post.setrequestentity (requestentity);            Set Format Post.getparams (). Setcontentcharset (UTF8);            Client.executemethod (POST);            if (post.getstatuscode () = = SUCCESS) {respstr = Post.getresponsebodyasstring ();            } logger.info (Operater_name + "Communication Complete, Return code:" + Post.getstatuscode ());            Logger.info (Operater_name + "return content:" + post.getresponsebodyasstring ()); Logger.info (Operater_name + "End:            Return Result: "+ respstr);        Post.releaseconnection ();        } catch (Exception e) {logger.error (Operater_name, E);            }finally{if (post! = null) {post.releaseconnection ();        }} Long EndTime = System.currenttimemillis (); LoggEr.info (operater_name + "Total time:" + (Endtime-begintime) + "MS");    return respstr; }/** * @param args * @throws malformedurlexception */public static void main (string[] args) throws Mal        formedurlexception {//TODO auto-generated method stub jsonobject json = new Jsonobject ();        Json.put ("Mobilecode", "13069208531");        Json.put ("UserID", ""); URL url = new URL ("Http://ws.webxml.com.cn/WebServices/MobileCodeWS.asmx/getMobileCodeInfo");//url url = new URL ("HT Tp://ws.webxml.com.cn/webservices/mobilecodews.asmx "//+"/getmobilecodeinfo?mobilecode=13069208531&useri            D= ");        String resp = post (URL, json.tostring ());        String resp = get (URL);    System.out.println ("RESP:" +resp); }}

HttpClient:

public class Httpclientutil {public static void get (String number) throws exception{HttpClient client = new Ht        Tpclient (); GetMethod get = new GetMethod ("Http://ws.webxml.com.cn/WebServices/MobileCodeWS.asmx" + "/getmobilecodeinfo        ? mobilecode= "+ number +" &userid= "); Specifies the format of the transfer as GET request format Get.setrequestheader ("Content-type", "text/xml;        Charset=utf-8 ");        Send request int code = Client.executemethod (GET);        System.out.println ("Http: Status Code:" + code);        String result = Get.getresponsebodyasstring ();    SYSTEM.OUT.PRINTLN ("The result returned is:" + result);        public static void Post (String number) throws Exception {//httpclient: simulates an HTTP request in Java code//creates a browser object        HttpClient client = new HttpClient (); Fill in the data, send a GET or POST request Postmethod post = new Postmethod ("Http://ws.webxml.com.cn/WebServices/MobileCodeWS.asmx/getMo        Bilecodeinfo "); Specifies the format of the transfer as the default post format post.setrequestheader ("Content-type", "ApplIcation/x-www-form-urlencoded ");        Transmission parameter Post.setparameter ("Mobilecode", number);        Post.setparameter ("UserID", "");        Send request int code = Client.executemethod (POST);        System.out.println ("Http: Status Code:" + code);        String result = Post.getresponsebodyasstring ();    SYSTEM.OUT.PRINTLN ("The result returned is:" + result); }/** * @Description The SOAP post method request, but the transmitted data is in XML format, facilitates the maintenance of the data * @param number * @throws Exception *//IT    There are two versions of soap1.1 and soap1.2,jdk1.7 and above to use soap1.2. public void Soap (String number) throws Exception {//httpclient: simulates an HTTP request in Java code//creates a browser object Httpclien        T client = new HttpClient ();        Fill in data, send get or POST request Postmethod post = new Postmethod ("Http://ws.webxml.com.cn/WebServices/MobileCodeWS.asmx");        Specifies the format of the transfer in XML format Post.setrequestheader ("Content-type", "application/soap+xml;charset=utf-8"); Transfer XML, load soap.txt inputstream in = HttpClientUtil.class.getClassLoader (). GETresourceasstream ("/soap.txt");//The return value is a InputStream post.setrequestbody (in);        Send request int code = Client.executemethod (POST);        System.out.println ("Http: Status Code:" + code);        String result = Post.getresponsebodyasstring ();    If you are using SOAP, the returned data is also the XML-based SOAP format System.out.println ("The result returned is:" + result); }//wsimport-s. -P com.hexy.ws http://ws.webxml.com.cn/WebServices/MobileCodeWS.asmx?        WSDL public static void wsdl () {//Gets a WS service mobilecodews ws = new Mobilecodews ();        Get the specific service type: Get post soap1.1 soap1.2 mobilecodewssoap wssoap = Ws.getmobilecodewssoap ();        String address = Wssoap.getmobilecodeinfo ("18312345678", null);    SYSTEM.OUT.PRINTLN ("Cell Phone Attribution Information:" + address);        }/** * @param args * @throws Exception */public static void main (string[] args) throws Exception {        TODO auto-generated Method Stub post ("18312345678");        WSDL ();    Soap ("18312345678"); }}

Soap.txt

<?xml version= "1.0" encoding= "Utf-8"? ><soap12:envelope xmlns:xsi= "http://www.w3.org/2001/ Xmlschema-instance "xmlns:xsd=" Http://www.w3.org/2001/XMLSchema "xmlns:soap12=" http://www.w3.org/2003/05/ Soap-envelope ">  <soap12:Body>    <getmobilecodeinfo xmlns=" http://WebXml.com.cn/">      < mobilecode>13069208531</mobilecode>      <userID></userID>    </getMobileCodeInfo>  </soap12:Body></soap12:Envelope>