MD5工具类

package md5test;

import java.security.MessageDigest;
import cert.Base64Utils;
import com.tass.util.DataConverter;
/**

• @Author:yxm
• @Description:
• @Date:Created in 9:46 2019/8/09
• Modified By:
  /
  public class MD5Utils {
  private static final String hexDigIts[] = {“0”,“1”,“2”,“3”,“4”,“5”,“6”,“7”,“8”,“9”,“a”,“b”,“c”,“d”,“e”,“f”};
  /*
  • MD5加密
  • @param origin 字符
  • @param charsetname 编码
  • @return
    */
    public static String MD5Encode(String origin, String charsetname){
    String resultString = null;
    try{
    resultString = new String(origin);
    MessageDigest md = MessageDigest.getInstance(“MD5”);
    if(null == charsetname || “”.equals(charsetname)){
    resultString = byteArrayToHexString(md.digest(resultString.getBytes()));
    }else{
    resultString = byteArrayToHexString(md.digest(resultString.getBytes(charsetname)));
    }
    }catch (Exception e){
    }
    return resultString;
    }
    public static String byteArrayToHexString(byte b[]){
    StringBuffer resultSb = new StringBuffer();
    for(int i = 0; i < b.length; i++){
    resultSb.append(byteToHexString(b[i]));
    }
    return resultSb.toString();
    }
    public static String byteToHexString(byte b){
    int n = b;
    if(n < 0){
    n += 256;
    }
    int d1 = n / 16;
    int d2 = n % 16;
    return hexDigIts[d1] + hexDigIts[d2];
    }
    public static void main(String[] args) {
    String md5Str = MD5Encode(“207cf410532f92a47dee245ce9b11ff71f578ebd763eb3bbea44ebd043d018fb”,“utf8”);
    System.out.println(“md5Str==”+md5Str);
    byte[] hexStringToBytes = DataConverter.hexStringToBytes(md5Str);
    String hexStringToBytesBase64= Base64Utils.Encode64(hexStringToBytes);
    System.out.println(hexStringToBytesBase64);
    }
    }