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@ -413,49 +413,7 @@ public class WxUtils { |
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} |
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} |
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/** |
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* 用SHA1算法生成安全签名 |
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* @param data 数据 |
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* @return 安全签名 |
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* @throws Exception |
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*/ |
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public static String getSHA1(final Map<String, Object> data) throws Exception |
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{ |
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try { |
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Set<String> keySet = data.keySet(); |
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String[] keyArray = keySet.toArray(new String[keySet.size()]); |
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Arrays.sort(keyArray); |
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StringBuilder sb = new StringBuilder(); |
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for (String k : keyArray) { |
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if (k.equals(WXPayConstants.FIELD_SIGN) || k.equals("apiKey")) { |
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continue; |
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} |
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if (data.get(k) != null) // 参数值为空,则不参与签名
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{ |
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sb.append(k).append("=").append(data.get(k)).append("&"); |
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} |
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} |
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String str = sb.substring(0 , sb.length()-1); |
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// SHA1签名生成
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MessageDigest md = MessageDigest.getInstance("SHA-1"); |
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md.update(str.getBytes()); |
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byte[] digest = md.digest(); |
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StringBuffer hexstr = new StringBuffer(); |
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String shaHex = ""; |
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for (int i = 0; i < digest.length; i++) { |
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shaHex = Integer.toHexString(digest[i] & 0xFF); |
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if (shaHex.length() < 2) { |
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hexstr.append(0); |
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} |
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hexstr.append(shaHex); |
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} |
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return hexstr.toString(); |
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} catch (Exception e) { |
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e.printStackTrace(); |
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throw new Exception(String.format("Invalid sign_type: %s")); |
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} |
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} |
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} |
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