import java.security.MessageDigest; public class SHAUtil { /*** * SHA加密 生成40位SHA码 * @param 待加密字符串 * @return 返回40位SHA码 */ public static String shaEncode(String inStr) throws Exception { MessageDigest sha = null; try { sha = MessageDigest.getInstance("SHA"); } catch (Exception e) { System.out.println(e.toString()); e.printStackTrace(); return ""; } byte[] byteArray = inStr.getBytes("UTF-8"); byte[] md5Bytes = sha.digest(byteArray); StringBuffer hexValue = new StringBuffer(); for (int i = 0; i < md5Bytes.length; i++) { int val = ((int) md5Bytes[i]) & 0xff; if (val < 16) { hexValue.append("0"); } hexValue.append(Integer.toHexString(val)); } return hexValue.toString(); } /** * 测试主函数 */ public static void main(String args[]) throws Exception { String str = new String("123456"); System.out.println("原始：" + str); System.out.println("SHA后：" + shaEncode(str)); } }
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