Date
or X-Date
and Authorization
. More optional headers can be added in the request. If Date
is used, the server will not check the time; if X-Date
is used, the server will check the time.Date
header is the construction time of the HTTP request in GMT format, such as Fri, 09 Oct 2015 00:00:00 GMT.X-Date
header is the construction time of the HTTP request in GMT format, such as Mon, 19 Mar 2018 12:08:40 GMT. It cannot deviate from the current time for more than 15 minutes.X-NameSpace-Code
and X-MicroService-Name
. They are not needed for general APIs and are included in the demo by default.GET
and POST
methods for your choice.package apigatewayDemo;import java.io.UnsupportedEncodingException;public class Base64 {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', '+', '/' };private static byte[] base64DecodeChars = new byte[] { -1, -1, -1, -1, -1,-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,-1, -1, -1, -1, 62, -1, -1, -1, 63, 52, 53, 54, 55, 56, 57, 58, 59,60, 61, -1, -1, -1, -1, -1, -1, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1,-1, -1, -1, -1, -1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37,38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1,-1, -1 };public static String encode(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();}public static byte[] decode(String str) throws UnsupportedEncodingException {StringBuffer sb = new StringBuffer();byte[] data = str.getBytes("US-ASCII");int len = data.length;int i = 0;int b1, b2, b3, b4;while (i < len) {/* b1 */do {b1 = base64DecodeChars[data[i++]];} while (i < len && b1 == -1);if (b1 == -1)break;/* b2 */do {b2 = base64DecodeChars[data[i++]];} while (i < len && b2 == -1);if (b2 == -1)break;sb.append((char) ((b1 << 2) | ((b2 & 0x30) >>> 4)));/* b3 */do {b3 = data[i++];if (b3 == 61)return sb.toString().getBytes("ISO-8859-1");b3 = base64DecodeChars[b3];} while (i < len && b3 == -1);if (b3 == -1)break;sb.append((char) (((b2 & 0x0f) << 4) | ((b3 & 0x3c) >>> 2)));/* b4 */do {b4 = data[i++];if (b4 == 61)return sb.toString().getBytes("ISO-8859-1");b4 = base64DecodeChars[b4];} while (i < len && b4 == -1);if (b4 == -1)break;sb.append((char) (((b3 & 0x03) << 6) | b4));}return sb.toString().getBytes("ISO-8859-1");}}
package apigatewayDemo;import java.io.UnsupportedEncodingException;import java.security.InvalidKeyException;import java.security.NoSuchAlgorithmException;import javax.crypto.Mac;import javax.crypto.spec.SecretKeySpec;import java.text.SimpleDateFormat;import java.util.*;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.io.PrintWriter;import java.net.URL;import java.net.URLConnection;import java.net.HttpURLConnection;import java.io.OutputStreamWriter;public class SignAndSend {private static final String CONTENT_CHARSET = "UTF-8";private static final String HMAC_ALGORITHM = "HmacSHA1";public static String sign(String secret, String timeStr)throws NoSuchAlgorithmException, UnsupportedEncodingException, InvalidKeyException{// Get the signature stringString signStr = "date: "+timeStr+"\\n"+"source: "+"source";// Get the API signatureString sig = null;Mac mac1 = Mac.getInstance(HMAC_ALGORITHM);byte[] hash;SecretKeySpec secretKey = new SecretKeySpec(secret.getBytes(CONTENT_CHARSET), mac1.getAlgorithm());mac1.init(secretKey);hash = mac1.doFinal(signStr.getBytes(CONTENT_CHARSET));sig = new String(Base64.encode(hash));System.out.println("signValue--->" + sig);return sig;}public static HttpURLConnection NewHttpUrlCon(String url, String secretId, String secretKey) {// Get the current GMT timeCalendar cd = Calendar.getInstance();SimpleDateFormat sdf = new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss 'GMT'", Locale.US);sdf.setTimeZone(TimeZone.getTimeZone("GMT"));String timeStr = sdf.format(cd.getTime());HttpURLConnection httpUrlCon = null;try {String urlNameString = url;URL realUrl = new URL(urlNameString);// Open the connection to the URLURLConnection connection = realUrl.openConnection();httpUrlCon = (HttpURLConnection)connection;// Set general request attributeshttpUrlCon.setRequestProperty("Host", url);httpUrlCon.setRequestProperty("Accept", "text/html, */*; q=0.01");httpUrlCon.setRequestProperty("Source","source");httpUrlCon.setRequestProperty("Date",timeStr);String sig = sign(secretKey,timeStr);String authen = "hmac id=\\""+secretId+"\\", algorithm=\\"hmac-sha1\\", headers=\\"date source\\", signature=\\""+sig+"\\"";System.out.println("authen --->" + authen);httpUrlCon.setRequestProperty("Authorization",authen);httpUrlCon.setRequestProperty("X-Requested-With","XMLHttpRequest");httpUrlCon.setRequestProperty("Accept-Encoding","gzip, deflate, sdch");// If it is a microservice API, you need to add two fields in the header: 'X-NameSpace-Code' and 'X-MicroService-Name'. They are not needed for general APIs.httpUrlCon.setRequestProperty("X-NameSpace-Code","testmic");httpUrlCon.setRequestProperty("X-MicroService-Name","provider-demo");} catch (Exception e) {System.out.println("An exception occurred while creating the connection." + e);e.printStackTrace();}return httpUrlCon;}public static String sendGet(String url, String secretId, String secretKey) {String result = "";BufferedReader in = null;try {// Create a connectionHttpURLConnection httpUrlCon = NewHttpUrlCon(url, secretId, secretKey);// Establish the actual connectionhttpUrlCon.connect();// Get all response header fieldsMap<String, List<String>> map = httpUrlCon.getHeaderFields();// Traverse all response header fieldsfor (String key : map.keySet()) {System.out.println(key + "--->" + map.get(key));}// Define the `BufferedReader` input stream to read the URL responsein = new BufferedReader(new InputStreamReader(httpUrlCon.getInputStream()));String line;while ((line = in.readLine()) != null) {result += line;}} catch (Exception e) {System.out.println("An exception occurred while sending the GET request." + e);e.printStackTrace();}// Close the input stream by using the `finally` blockfinally {try {if (in != null) {in.close();}} catch (Exception e2) {e2.printStackTrace();}}return result;}public static String sendPost(String url, String secretId, String secretKey) {String result = "";BufferedReader in = null;try {// Create a connectionHttpURLConnection httpUrlCon = NewHttpUrlCon(url, secretId, secretKey);// Configure the `POST` requesthttpUrlCon.setRequestMethod("POST");httpUrlCon.setUseCaches(false); // A `POST` cannot use the cachehttpUrlCon.setDoOutput(true);httpUrlCon.setDoInput(true);// Put the request data in the bodyOutputStreamWriter out = new OutputStreamWriter(httpUrlCon.getOutputStream());String jsonStr = "{\\"caller\\":\\"apigw\\", \\"data\\":\\"test post\\"}";out.write(jsonStr);out.flush();out.close();// Establish the actual connectionhttpUrlCon.connect();// Get all response header fieldsMap<String, List<String>> map = httpUrlCon.getHeaderFields();// Traverse all response header fieldsfor (String key : map.keySet()) {System.out.println(key + "--->" + map.get(key));}// Define the `BufferedReader` input stream to read the URL responsein = new BufferedReader(new InputStreamReader(httpUrlCon.getInputStream()));String line;while ((line = in.readLine()) != null) {result += line;}} catch (Exception e) {System.out.println("An exception occurred while sending the POST request." + e);e.printStackTrace();}// Close the input stream by using the `finally` blockfinally {try {if (in != null) {in.close();}} catch (Exception e2) {e2.printStackTrace();}}return result;}}
package apigatewayDemo;public class Demo {public static void main(String[] args) {String secretId = "your secretId"; // `SecretId` in key pairString secretKey = "your secretKey"; // `SecretKey` in key pairSignAndSend signAndSendInstance = new SignAndSend();// `GET` requestString getUrl = "http://service-xxxxxxxx-1234567890.gz.apigw.tencentcs.com:80/get"; // API access pathString getResult = SignAndSend.sendGet(getUrl, secretId, secretKey);System.out.println(getResult);// `POST` requestString postUrl = "http://service-xxxxxxxx-1234567890.gz.apigw.tencentcs.com:80/post"; // API access pathString postResult = SignAndSend.sendPost(postUrl, secretId, secretKey);System.out.println(postResult);}}
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