Question

求一MD5加密的Bean 不是使用MessageDigest类写的

如题，复制的就不要来了。

Answer 1

import java.security.MessageDigest;

public class SpiderMD5 {
public final static String MD5(String s) {
String result = "";
char hexDigits[] =
{ '0', '1', '2', '3',
'4', '5', '6', '7',
'8', '9', 'a', 'b',
'c', 'd', 'e', 'f' };
try {

byte[] strTemp = s.getBytes();
MessageDigest mdTemp = MessageDigest.getInstance("MD5");
mdTemp.update(strTemp);
byte[] md = mdTemp.digest();
int j = md.length;
char str[] = new char[j * 2];
int k = 0;
for (int i = 0; i < j; i++) {
byte b = md[i];
str[k++] = hexDigits[b >> 4 & 0xf];
str[k++] = hexDigits[b & 0xf];
}
result = new String(str);
} catch (Exception e)

return result;
}

}