/*
* Project: payment.framework
*
* File Created at 2017年12月23日
*
* Copyright 2016 CMCC Corporation Limited.
* All rights reserved.
*
* This software is the confidential and proprietary information of
* ZYHY Company. ("Confidential Information"). You shall not
* disclose such Confidential Information and shall use it only in
* accordance with the terms of the license.
*/
package com.cmcc.hybj.payment.framework.https;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.Comparator;
import java.util.Enumeration;
import java.util.Hashtable;
import java.util.Set;
import java.util.TreeSet;
/**
* @author gy
* @Type Sign.java
* @Desc 支付签名
* @date 2017年12月23日 上午9:56:04
*/
public class Sign {
private static Logger log = LoggerFactory.getLogger(Sign.class);
/**
* // 服务器端生成签名
*
* @param map
* @return
*/
public static String buildSign(Hashtable<String, String> map) {
Set<String> keys = new TreeSet<String>(new MyComparator());
Enumeration<String> enumeration = map.keys();
while (enumeration.hasMoreElements()) {
String keyss = enumeration.nextElement();
keys.add(keyss);
}
// 拼接有序的参数名-值串
StringBuilder stringBuilder = new StringBuilder();
for (String key : keys) {
String value = map.get(key);
if (value == null) {
continue;
} else if ("".equals(value.trim())) {
continue;
} else if ("sign".equals(key.trim())) {
continue;
} else {
stringBuilder.append(key).append("=").append(value).append("&");
}
}
String s = stringBuilder.toString();
s = s.substring(0, s.length() - 1);
log.info("排序后的参数 ：" + s);
return s;
}
/**
* 内部类
*
* @author gy
*/
public static class MyComparator implements Comparator<String> {
@Override
public int compare(String o1, String o2) {
return o1.compareTo(o2);// 升序排列
}
}
}
/**
* Revision history
* -------------------------------------------------------------------------
* <p>
* Date Author Note
* -------------------------------------------------------------------------
* 2017年12月23日 Administrator creat
*/