JAVA

java签名DEMO如下：

package com.ksyun.util;
 
import org.apache.commons.codec.digest.HmacAlgorithms;
import org.apache.commons.codec.digest.HmacUtils;
 
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.nio.charset.StandardCharsets;
import java.util.HashMap;
import java.util.Map;
import java.util.TreeMap;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
 
/***
    使用时，把测试相关方法删掉。测试方法包括：main，test1，test2
    把这个类拷贝到自己的工程内
    签名调用：SignatureUtils.signature(params, secretKey)
**/
/**
 * @author [email protected]
 */
public class SignatureUtils {
 
    private static final Pattern ENCODED_CHARACTERS_PATTERN;
 
    static {
        StringBuilder pattern = new StringBuilder();
        pattern.append(Pattern.quote("+"))
            .append("|")
            .append(Pattern.quote("*"))
            .append("|")
            .append(Pattern.quote("%7E"))
            .append("|")
            .append(Pattern.quote("%2F"));
        ENCODED_CHARACTERS_PATTERN = Pattern.compile(pattern.toString());
    }
 
    /**
     * 注意空格( )会编码成+号，所以+最后需要替换成%20（%20为空格）
     * 在URLEncode后需对三种字符替换：加号（+）替换成 %20、星号（*）替换成 %2A、 %7E 替换回波浪号（~）
     */
    private static String urlEncode(final String value, final boolean path) {
        if (value == null) {
            return "";
        }
 
        try {
 
            String encoded = URLEncoder.encode(value, StandardCharsets.UTF_8.name());
            Matcher matcher = ENCODED_CHARACTERS_PATTERN.matcher(encoded);
            StringBuffer buffer = new StringBuffer(encoded.length());
 
            while (matcher.find()) {
                String replacement = matcher.group(0);
                if ("+".equals(replacement)) {
                    replacement = "%20";
                } else if ("*".equals(replacement)) {
                    replacement = "%2A";
                } else if ("%7E".equals(replacement)) {
                    replacement = "~";
                } else if (path && "%2F".equals(replacement)) {
                    replacement = "/";
                }
 
                matcher.appendReplacement(buffer, replacement);
            }
            matcher.appendTail(buffer);
            return buffer.toString();
        } catch (UnsupportedEncodingException ex) {
            throw new RuntimeException(ex);
        }
    }
 
    private static String getCanonicalizedQueryString(Map<String, Object> params) {
        final Map<String, String> tmap = new TreeMap<>();
        for (Map.Entry<String, Object> entry : params.entrySet()) {
            String key = entry.getKey();
            Object value = entry.getValue();
            String encodedParamName = urlEncode(key, false);
            String encodedValues = urlEncode(value.toString(), false);
            tmap.put(encodedParamName, encodedValues);
        }
 
        final StringBuilder sb = new StringBuilder();
        for (Map.Entry<String, String> entry : tmap.entrySet()) {
            if (sb.length() > 0) {
                sb.append("&");
            }
            sb.append(entry.getKey()).append('=').append(entry.getValue());
        }
        return sb.toString();
    }
 
    public static String signature(Map<String, Object> params, String secretKey) {
        String canonicalizedQueryString = getCanonicalizedQueryString(params);
        return new HmacUtils(HmacAlgorithms.HMAC_SHA_256, secretKey).hmacHex(canonicalizedQueryString);
    }
 
    public static void test2() {
        String accesskey = "AKLTXQVF0pOmS6aahIrD5r0B3Q";
        String secretKey = "OMovU5PTLh6y9E9Ioe3K411jt99VqyQSBXgAcDYlo49R3lvUIzb6e/efZCFDmtFlzw==";
 
        Map<String, Object> params = new HashMap<>();
        params.put("Accesskey", accesskey);//公共参数
        params.put("Service", "iam");//公共参数
        params.put("Action", "CreateUser");//公共参数
        params.put("Version", "2015-11-01");//公共参数
        params.put("Timestamp", "2021-08-12T02:47:36Z");//公共参数
        params.put("SignatureVersion", "1.0");//公共参数
        params.put("SignatureMethod", "HMAC-SHA256");//公共参数
        params.put("UserName", "Ttest"); //api特有参数
        params.put("RealName", "周四测试");//api特有参数
        params.put("Email", "[email protected]");//api特有参数
        params.put("Remark", "~ce shi*%#|+");//api特有参数
 
        System.out.println(signature(params, secretKey));
    }
 
    public static void test1() {
        String accesskey = "AKLTXQVF0pOmS6aahIrD5r0B3Q";
        String secretKey = "OMovU5PTLh6y9E9Ioe3K411jt99VqyQSBXgAcDYlo49R3lvUIzb6e/efZCFDmtFlzw==";
 
        Map<String, Object> params = new HashMap<>();
        params.put("Accesskey", accesskey); //公共参数
        params.put("Service", "iam"); //公共参数
        params.put("Action", "GetUser"); //公共参数
        params.put("Version", "2015-11-01"); //公共参数
        params.put("Timestamp", "2021-08-06T07:45:36Z"); //公共参数
        params.put("SignatureVersion", "1.0"); //公共参数
        params.put("SignatureMethod", "HMAC-SHA256"); //公共参数
        params.put("UserName", "freestest"); //api特有参数
 
        System.out.println(signature(params, secretKey));
    }
 
    public static void main(String[] args) {
        test1();//签名结果：9294d873d0f921bed24b6089708b66fbdfc4a6ea0eb30ad21e73ce603b82fbb7
        test2();//签名结果：fc9088ab845949dac4040be9b7ce7859068b5c21d4c400fec8ee0cefb777f659
    }
}