万网的云解析API请求不成功，求指教

不成功有什麼錯誤返回不

你好，以下是我们的开发人员测试用的相关代码，供您参考。
    
/*
* Copyright 2015 Aliyun.com All right reserved. This software is the
* confidential and proprietary information of Aliyun.com ("Confidential
* Information"). You shall not disclose such Confidential Information and shall
* use it only in accordance with the terms of the license agreement you entered
* into with Aliyun.com .
*/
package com.util;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.net.URLEncoder;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.crypto.Mac;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
import javax.xml.crypto.dsig.SignatureMethod;
import com.alibaba.fastjson.JSON;
import com.google.common.base.Splitter;
import com.google.common.io.BaseEncoding;
/**
* 类TopSignature.java的实现描述：TODO 类实现描述
* @author
*/
@SuppressWarnings("restriction")
public class TopSignature {
    private static String accessId     = "testid";
    private static String accessSecret = "testsecret";
    private static String SEPARATOR = "&";
    private static String ENCODE_TYPE = "utf-8";
    private static String EQUAL       = "=";
    public static void main(String[] args) throws UnsupportedEncodingException, InvalidKeyException,
            NoSuchAlgorithmException {
        String x = "TimeStamp=2014-08-15T11%3A10%3A07Z&Format=xml&AccessKeyId=testid&Action=DescribeScalingGroups&SignatureMethod=HMAC-SHA1&RegionId=cn-qingdao&SignatureNonce=1324fd0e-e2bb-4bb1-917c-bd6e437f1710&SignatureVersion=1.0&Version=2014-08-28";
        Map<String, String> map = new HashMap<String, String>();
        List<String> list = Splitter.on("&").splitToList(x);
        for (String s : list) {
            List<String> kv = Splitter.on("=").splitToList(URLDecoder.decode(s, ENCODE_TYPE));
            if (kv.size() == 2) {
                map.put(kv.get(0), kv.get(1));
            }
        }
        System.out.println(JSON.toJSONString(map, true));
        String signature = sig("GET", map);
        System.out.println("Signature:" + signature);
        System.out.println("urlencode:" + URLEncoder.encode(signature, ENCODE_TYPE));
    }
    private static String sig(String method, Map<String, String> param) throws NoSuchAlgorithmException,
            UnsupportedEncodingException,
            InvalidKeyException {
        List<String> keys = new ArrayList<String>(param.keySet());
        // Step 1: canonicalize
        Collections.sort(keys);
        StringBuilder sb = new StringBuilder();
        for (String key : keys) {
            String value = param.get(key);
            sb.append(SEPARATOR).append(percentEncode(key)).append(EQUAL).append(percentEncode(value));
        }
        String canonicalizedQueryString = sb.substring(1);
        // Step 2: prepare string to sign
        StringBuilder signedData = new StringBuilder();
        signedData.append(percentEncode(method));
        signedData.append(SEPARATOR);
        signedData.append(percentEncode("/"));
        signedData.append(SEPARATOR);
        signedData.append(percentEncode(canonicalizedQueryString));
        String stringToSign = signedData.toString();
        // Step 3: sign
        SecretKey key = new SecretKeySpec((accessSecret + SEPARATOR).getBytes(ENCODE_TYPE), SignatureMethod.HMAC_SHA1);
        Mac mac = Mac.getInstance("HmacSHA1");
        mac.init(key);
        byte[] hmacValue = mac.doFinal(stringToSign.getBytes(ENCODE_TYPE));
        // Step 4: base64 encode
        return BaseEncoding.base64().encode(hmacValue);
    }
    private static String percentEncode(String s) throws UnsupportedEncodingException {
        if (s == null)
            return null;
        return URLEncoder.encode(s, ENCODE_TYPE).replace("+", "%20").replace("*", "%2A").replace("%7E", "~");
    }
}

不要沉啊， 求帮助啊。。。。。