阿里雲訊息推送api中一個引數Signature是需要加密的， 按照阿里雲規則對引數進行加密測試

package cn.sigutech.utils;

import java.util.HashMap;
import java.util.Map;

public class test {
    public static void main(String[] args) throws Exception {

            String accessKeyId = "****";
            String accessSecret = "****";
        java.text.SimpleDateFormat df = new java.text.SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'");
        df.setTimeZone(new java.util.SimpleTimeZone(0, "GMT"));// 這裡一定要設定GMT時區
        java.util.Map<String, String> paras = new java.util.HashMap<String, String>();
        // 1. 系統引數
        paras.put("SignatureMethod", "HMAC-SHA1");
        paras.put("SignatureNonce", java.util.UUID.randomUUID().toString());
        paras.put("AccessKeyId", accessKeyId);
        paras.put("SignatureVersion", "1.0");
        paras.put("Timestamp", df.format(new java.util.Date()));
        paras.put("Format", "XML");
        paras.put("Version", "2016-08-01");
        paras.put("RegionId", "cn-hangzhou");
        paras.put("AppKey", "27589110");

//         2. 業務API引數
        paras.put("Action", "QueryTags");
//        paras.put("TagName", "test_tag");
        paras.put("ClientKey", "****");
        paras.put("KeyType", "DEVICE");

        // 3. 去除簽名關鍵字Key
        if (paras.containsKey("Signature"))
            paras.remove("Signature");

        // 4. 引數KEY排序
        java.util.TreeMap<String, String> sortParas = new java.util.TreeMap<String, String>();
        sortParas.putAll(paras);

        // 5. 構造待簽名的字串
        java.util.Iterator<String> it = sortParas.keySet().iterator();
        StringBuilder sortQueryStringTmp = new StringBuilder();
        while (it.hasNext()) {
            String key = it.next();
            sortQueryStringTmp.append("&").append(specialUrlEncode(key)).append("=").append(specialUrlEncode(paras.get(key)));
        }
        String sortedQueryString = sortQueryStringTmp.substring(1);// 去除第一個多餘的&符號

        StringBuilder stringToSign = new StringBuilder();
        stringToSign.append("GET").append("&");
        stringToSign.append(specialUrlEncode("/")).append("&");
        stringToSign.append(specialUrlEncode(sortedQueryString));

        String sign = sign(accessSecret + "&", stringToSign.toString());
        // 6. 簽名最後也要做特殊URL編碼
        String signature = specialUrlEncode(sign);

//        System.out.println(paras.get("SignatureNonce"));
//        System.out.println("\r\n=========\r\n");
//        System.out.println(paras.get("Timestamp"));
//        System.out.println("\r\n=========\r\n");
//        System.out.println(sortedQueryString);
//        System.out.println("\r\n=========\r\n");
//        System.out.println(stringToSign.toString());
//        System.out.println("\r\n=========\r\n");
//        System.out.println(sign);
//        System.out.println("\r\n=========\r\n");
//        System.out.println(signature);
//        System.out.println("\r\n=========\r\n");
//        // 最終打印出合法GET請求的URL
        System.out.println("http://cloudpush.aliyuncs.com/?Signature=" + signature + sortQueryStringTmp);
//        return  "http://cloudpush.aliyuncs.com/?Signature=" + signature + sortQueryStringTmp;
    }

    public static String specialUrlEncode(String value) throws Exception {
        return java.net.URLEncoder.encode(value, "UTF-8").replace("+", "%20").replace("*", "%2A").replace("%7E", "~");
    }

    public static String sign(String accessSecret, String stringToSign) throws Exception {
        javax.crypto.Mac mac = javax.crypto.Mac.getInstance("HmacSHA1");
        mac.init(new javax.crypto.spec.SecretKeySpec(accessSecret.getBytes("UTF-8"), "HmacSHA1"));
        byte[] signData = mac.doFinal(stringToSign.getBytes("UTF-8"));
        return new sun.misc.BASE64Encoder().encode(signData);
    }
}