加密

src/manager/cn/com/yskj/zfdm/model/organizationpersonnel/MD5Util.java

@@ -0,0 +1,105 @@
+package cn.com.yskj.zfdm.model.organizationpersonnel;
+
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+
+public class MD5Util {
+
+	public final static String MD5(String s) {
+		char hexDigits[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
+		try {
+			byte[] btInput = s.getBytes();
+			// 获得MD5摘要算法的 MessageDigest 对象
+			MessageDigest mdInst = MessageDigest.getInstance("MD5");
+			// 使用指定的字节更新摘要
+			mdInst.update(btInput);
+			// 获得密文
+			byte[] md = mdInst.digest();
+			// 把密文转换成十六进制的字符串形式
+			int j = md.length;
+			char str[] = new char[j * 2];
+			int k = 0;
+			for (int i = 0; i < j; i++) {
+				byte byte0 = md[i];
+				str[k++] = hexDigits[byte0 >>> 4 & 0xf];
+				str[k++] = hexDigits[byte0 & 0xf];
+			}
+			return new String(str);
+		} catch (Exception e) {
+			e.printStackTrace();
+			return null;
+		}
+	}
+
+	/**
+	 *
+	 * @time 2017年10月9日10:07:49
+	 * @author Lxm
+	 * @param data
+	 * @param charset
+	 * @return
+	 */
+	public final static String MD5(String data, String charset) {
+		char hexDigits[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
+		try {
+			byte[] btInput = data.getBytes(charset);
+			// 获得MD5摘要算法的 MessageDigest 对象
+			MessageDigest mdInst = MessageDigest.getInstance("MD5");
+			// 使用指定的字节更新摘要
+			mdInst.update(btInput);
+			// 获得密文
+			byte[] md = mdInst.digest();
+			// 把密文转换成十六进制的字符串形式
+			int j = md.length;
+			char str[] = new char[j * 2];
+			int k = 0;
+			for (int i = 0; i < j; i++) {
+				byte byte0 = md[i];
+				str[k++] = hexDigits[byte0 >>> 4 & 0xf];
+				str[k++] = hexDigits[byte0 & 0xf];
+			}
+			return new String(str);
+		} catch (Exception e) {
+			e.printStackTrace();
+			return null;
+		}
+	}
+
+	/**
+	 * 获取32，16位md5
+	 *
+	 * @param sourceStr
+	 * @param bit
+	 * @return
+	 */
+	public static String MD5Plus(String sourceStr, int bit) {
+		String result = "";
+		try {
+			MessageDigest md = MessageDigest.getInstance("MD5");
+			md.update(sourceStr.getBytes());
+			byte b[] = md.digest();
+			int i;
+			StringBuffer buf = new StringBuffer("");
+			for (int offset = 0; offset < b.length; offset++) {
+				i = b[offset];
+				if (i < 0)
+					i += 256;
+				if (i < 16)
+					buf.append("0");
+				buf.append(Integer.toHexString(i));
+			}
+			result = buf.toString();
+			if (bit == 16) {
+				result = buf.toString().substring(8, 24);
+			}
+			// System.out.println("MD5(" + sourceStr + ",32) = " + result);
+			// System.out.println("MD5(" + sourceStr + ",16) = "
+			// +buf.toString().substring(8, 24));
+		} catch (NoSuchAlgorithmException e) {
+			System.out.println(e);
+		}
+		return result;
+	}
+
+
+}