import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.OutputStreamWriter; import java.io.UnsupportedEncodingException; import java.net.HttpURLConnection; import java.net.URL; import java.net.URLEncoder; import java.security.MessageDigest; import java.util.HashMap; import java.util.Map; public class KdniaoTrackQueryAPI { //DEMO public static void main(String[] args) { KdniaoTrackQueryAPI api = New new KdniaoTrackQueryAPI (); the try { String Result = api.getOrderTracesByJson ( "the ANE", "210 001 633 605" ); of System.out.print (Result); } the catch (Exception E) { e.printStackTrace (); } } // electricity supplier ID Private String EBusinessID = "courier birds go to the official website application http://www.kdniao.com/ServiceApply.aspx" ; // electricity providers private key encryption, providing courier birds, take good care not to leak Private String = AppKey "the Test" ; // request url Private String reqURL = "http://api.kdniao.com/Ebusiness/EbusinessOrderHandle.aspx" ; / ** * Json way inquiry Order logistics trajectory *@throws Exception */ public String getOrderTracesByJson(String expCode, String expNo) throws Exception{ String requestData= "{'OrderCode':'','ShipperCode':'" + expCode + "','LogisticCode':'" + expNo + "'}"; Map<String, String> params = new HashMap<String, String>(); params.put("RequestData", urlEncoder(requestData, "UTF-8")); params.put("EBusinessID", EBusinessID); params.put("RequestType", "1002"); String dataSign=encrypt(requestData, AppKey, "UTF-8"); params.put("DataSign", URLEncoder (dataSign, "UTF-. 8" )); params.put ( "the DataType", "2" ); String Result = ; sendPost (reqURL, the params) // information based business process returns .. .... return Result; } / ** * the MD5 encrypted * @param STR content * @param charset coding * @throws Exception * / @SuppressWarnings ( "unused" ) Private String the MD5 (STR String, String charset) throws Exception { the MessageDigest MD = MessageDigest.getInstance ( "the MD5" ); md.update(str.getBytes(charset)); byte[] result = md.digest(); StringBuffer sb = new StringBuffer(32); for (int i = 0; i < result.length; i++) { int val = result[i] & 0xff; if (val <= 0xf) { sb.append("0"); } sb.append(Integer.toHexString(val)); } return sb.toString().toLowerCase(); } /** * base64编码 * @param str 内容 * @param charset 编码方式 * @throws UnsupportedEncodingException */ private String base64(String str, String charset) throws UnsupportedEncodingException{ String encoded = base64Encode(str.getBytes(charset)); return encoded; } @SuppressWarnings("unused") private String urlEncoder(String str, String charset) throws UnsupportedEncodingException{ String result = URLEncoder.encode(str, charset); return result; } /** * 电商Sign签名生成 * @param content 内容 * @param keyValue Appkey * @param charset 编码方式 * @throws UnsupportedEncodingException ,Exception * @return DataSign签名 */ @SuppressWarnings("unused") private String encrypt (String content, String keyValue, String charset) throws UnsupportedEncodingException, Exception { if (keyValue != null) { return base64(MD5(content + keyValue, charset), charset); } return base64(MD5(content, charset), charset); } /** * 向指定 URL 发送POST方法的请求 * @param the URL transmission request URL * @param the params request parameter set * @return response result remote resources * / @SuppressWarnings ( "unused" ) Private String sendPost (String URL, the Map <String, String> the params) { the OutputStreamWriter OUT = null ; the BufferedReader in = null ; the StringBuilder Result = new new the StringBuilder (); the try { the URL realUrl = new new the URL (URL); the HttpURLConnection Conn = (the HttpURLConnection) realUrl.openConnection (); //Sending a POST request must set the following two lines conn.setDoOutput ( to true ); conn.setDoInput ( to true ); // POST method conn.setRequestMethod ( "POST" ); // set the common request attribute conn.setRequestProperty ( "Accept", "* / *" ); conn.setRequestProperty ( "Connection", "the Keep-Alive" ); conn.setRequestProperty ( "the User-Agent" , "Mozilla / 4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)" ) ; conn.setRequestProperty ( "the Content-the Type", "file application / X-WWW-form-urlencoded" ); conn.connect (); // Get URLConnection object corresponding to the output stream out= new OutputStreamWriter(conn.getOutputStream(), "UTF-8"); // 发送请求参数 if (params != null) { StringBuilder param = new StringBuilder(); for (Map.Entry<String, String> entry : params.entrySet()) { if(param.length()>0){ param.append("&"); } param.append(entry.getKey()); param.append("="); param.append(entry.getValue()); //System.out.println(entry.getKey()+":"+entry.getValue()); } //System.out.println ( "param:" + param.toString ()); out.write (param.toString ()); } // the flush buffered output stream out.flush (); // definition of the input stream BufferedReader read the URL of the response in = new new the BufferedReader ( new new the InputStreamReader (conn.getInputStream (), "UTF-. 8" )); String Line; the while (! (= in.readLine Line ()) = null ) { result.append ( Line); } } the catch (Exception E) { e.printStackTrace (); } // use the finally block to close the output stream, the input stream finally { the try { IF (OUT =! null){ out.close(); } if(in!=null){ in.close(); } } catch(IOException ex){ ex.printStackTrace(); } } return result.toString(); } private static char[] base64EncodeChars = new char[] { 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '+', '/' }; public static String base64Encode(byte[] data) { StringBuffer sb = new StringBuffer(); int len = data.length; int i = 0; int b1, b2, b3; while (i < len) { b1 = data[i++] & 0xff; if (i == len) { sb.append(base64EncodeChars[b1 >>> 2]); sb.append(base64EncodeChars[(b1 & 0x3) << 4]); sb.append("=="); break; } b2 = data[i++] & 0xff; if (i == len) { sb.append(base64EncodeChars[b1 >>> 2]); sb.append(base64EncodeChars[((b1 & 0x03) << 4) | ((b2 & 0xf0) >>> 4)]); sb.append(base64EncodeChars[(b2 & 0x0f) << 2]); sb.append("="); break; } b3 = data[i++] & 0xff; sb.append(base64EncodeChars[b1 >>> 2]); sb.append(base64EncodeChars[((b1 & 0x03) << 4) | ((b2 & 0xf0) >>> 4)]); sb.append(base64EncodeChars[((b2 & 0x0f) << 2) | ((b3 & 0xc0) >>> 6)]); sb.append(base64EncodeChars[b3 & 0x3f]); } return sb.toString(); } }