package com.dsh.course.util.akeylogin;
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import java.util.Map;
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import java.util.TreeMap;
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public class SignUtil {
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private static String charset = "utf8";
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public static String getSign(Map<String, Object> data, String secret) {
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if (data == null) {
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return null;
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}
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//排序参数
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Map<String, Object> mappingList = new TreeMap<>(data);
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StringBuilder plainText = new StringBuilder();
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mappingList.forEach((k, v) -> {
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if (!"sign".equals(k) && !BaseUtils.isEmpty(v)) {
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plainText.append(String.format("%s=%s&", k, v));
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}
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});
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String substring = plainText.substring(0, plainText.length() - 1);
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return Md5Util.MD5Encode(substring + secret, charset);
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}
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}
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