Java implementation of HTTP POST, get, proxy access request _java

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Package com.snowfigure.kits.net; 
Import Java.io.BufferedReader;
Import java.io.IOException; 
Import Java.io.InputStream; 
Import Java.io.InputStreamReader;
Import Java.io.OutputStreamWriter; 
Import java.io.UnsupportedEncodingException; 
Import java.net.HttpURLConnection;
Import java.net.InetSocketAddress;
Import Java.net.Proxy; 
Import Java.net.URL;
Import java.net.URLConnection;
Import java.util.List;
 
Import Java.util.Map; /** * HTTP Request Tool class * @author snowfigure * @since 2014-8-24 13:30:56 * @version v1.0.1/public class Httprequestut
  Il {static Boolean proxyset = false;
  static String ProxyHost = "127.0.0.1";
  static int proxyport = 8087; 
    /** * Code * @param source * @return/public static string UrlEncode (string source,string encode) { 
    String result = Source; 
    try {result = Java.net.URLEncoder.encode (Source,encode); 
      catch (Unsupportedencodingexception e) {e.printstacktrace (); 
    return "0"; } RetuRN result; 
    public static string URLENCODEGBK (string source) {string result = Source; 
    try {result = Java.net.URLEncoder.encode (source, "GBK"); 
      catch (Unsupportedencodingexception e) {e.printstacktrace (); 
    return "0"; 
  return result; /** * Initiates HTTP request fetch return result * @param req_url request Address * @return/public static string HttpRequest (String req 
    _url) {StringBuffer buffer = new StringBuffer (); 
      try {URL url = new URL (req_url); 
  
      HttpURLConnection httpurlconn = (httpurlconnection) url.openconnection (); 
      Httpurlconn.setdooutput (FALSE); 
      Httpurlconn.setdoinput (TRUE); 
  
      Httpurlconn.setusecaches (FALSE); 
      Httpurlconn.setrequestmethod ("get"); 
  
      Httpurlconn.connect (); 
      Converts the returned input flow to a string InputStream InputStream = Httpurlconn.getinputstream (); 
      InputStreamReader InputStreamReader = new InputStreamReader (InputStream, "utf-8"); BufferedReader BuffereDreader = new BufferedReader (InputStreamReader); 
      String str = NULL; 
      while (str = Bufferedreader.readline ())!= null) {buffer.append (str); 
      } bufferedreader.close (); 
      Inputstreamreader.close (); 
      Releasing resources inputstream.close (); 
      InputStream = null; 
  
    Httpurlconn.disconnect (); 
    catch (Exception e) {System.out.println (E.getstacktrace ()); 
  return buffer.tostring (); /** * Send HTTP request to get return input stream * @param requesturl request Address * @return InputStream/public static inputs 
    Tream httprequestio (String requesturl) {InputStream inputstream = null; 
      try {URL url = new URL (requesturl); 
      HttpURLConnection httpurlconn = (httpurlconnection) url.openconnection (); 
      Httpurlconn.setdoinput (TRUE); 
      Httpurlconn.setrequestmethod ("get"); 
      Httpurlconn.connect (); 
    Gets the returned input stream inputstream = Httpurlconn.getinputstream (); catch (Exception e){E.printstacktrace (); 
  return inputstream; /** * Request to send a GET method to the specified URL * * @param URL * Send the requested URL * @param param * Request parameter, request parameter should be NA
   The form of me1=value1&name2=value2.
    * @return The response result of the remote resource represented by the URL/public static string Sendget (string URL, string param) {String results = "";
    BufferedReader in = null;
      try {String urlnamestring = URL + '? ' + param;
      URL realurl = new URL (urlnamestring);
      The connection between open and URL urlconnection connection = Realurl.openconnection ();
      Sets the common 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 ();
      Gets all response header fields Map<string, list<string>> Map = Connection.getheaderfields (); Iterate through all the response header fields for (String key:map.Keyset ()) {System.out.println (key + "--->" + map.get (key)); }//define BufferedReader input stream to read URL response in = new BufferedReader (New InputStreamReader Connection.getinpu
      Tstream ()));
      String Line;
      while (line = In.readline ())!= null) {result + = line; The 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.close ();
      } catch (Exception E2) {e2.printstacktrace ();
  } return result; /** * Request * Send the Post method to the specified URL * * @param URL * Send the requested URL * @param param * Request parameter, request parameter should be name
   The form of 1=value1&name2=value2. * @param IsProxy * Whether to use proxy mode * @return The response result of the remote resource on behalf/public static string Sendpost (string url, string p
    Aram,boolean isproxy) {outputstreamwriter out = null;
    BufferedReader in = null; Stringresult = "";
      try {URL realurl = new URL (URL);
      HttpURLConnection conn = null; if (IsProxy) {//using proxy mode @SuppressWarnings ("static-access") Proxy proxy = new Proxy (Proxy.Type.DIRECT.HTTP, NE
        W inetsocketaddress (ProxyHost, ProxyPort));
      conn = (httpurlconnection) realurl.openconnection (proxy);
      }else{conn = (httpurlconnection) realurl.openconnection ();
      //Open and URL connection//Send POST request must be set as follows two lines conn.setdooutput (true);
      Conn.setdoinput (TRUE);  Conn.setrequestmethod ("POST");
      Post method/Set Common 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) ");
       
      Conn.setrequestproperty ("Content-type", "application/x-www-form-urlencoded");
       
      Conn.connect ();
      Gets the output stream corresponding to the URLConnection objectout = new OutputStreamWriter (Conn.getoutputstream (), "UTF-8");
      Send request parameter out.write (param);
      Flush output Stream Buffer Out.flush ();
      Defines the response of the BufferedReader input stream to read the URL in = new BufferedReader (New InputStreamReader (Conn.getinputstream ()));
      String Line;
      while (line = In.readline ())!= null) {result + = line; The catch (Exception e) {System.out.println ("send POST request exception!)"
      "+e);
    E.printstacktrace ();
        ///Use finally block to turn off output stream, input stream finally{try{if (out!=null) {out.close ();
        } if (In!=null) {in.close ();
      } catch (IOException ex) {ex.printstacktrace ();
  } return result;
    public static void Main (string[] args) {//demo: proxy access String URL = "http://api.adf.ly/api.php";
     
    String para = "key=youkeyid&youuid=uid&advert_type=int&domain=adf.ly&url=http://somewebsite.com"; String Sr=httprequestUtil.sendpost (url,para,true);
  System.out.println (SR);
 }
   
}

Hopefully this article will help you learn about Java programming.