工具类
import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
/*
* @Comment :md5加密工具类
* @Created :2018/12/14 18:00
* @Name : YJ
*/public class Md5 {
/**
* md5加密
* @param info
* @return
*/
public static String getMD5(String info)
{
try
{
MessageDigest md5 = MessageDigest.getInstance("MD5");
md5.update(info.getBytes("UTF-8"));
byte[] encryption = md5.digest();
StringBuffer strBuf = new StringBuffer();
for (int i = 0; i < encryption.length; i++)
{
if (Integer.toHexString(0xff & encryption[i]).length() == 1)
{
strBuf.append("0").append(Integer.toHexString(0xff & encryption[i]));
}
else
{
strBuf.append(Integer.toHexString(0xff & encryption[i]));
}
}
return strBuf.toString();
}
catch (NoSuchAlgorithmException e)
{
return "";
}
catch (UnsupportedEncodingException e)
{
return "";
}
}
}
使用方法:
//加密前
String s="123456";
//加密后
String ss=Md5.getMD5(s);
ss就是加密之后的数据