public class MD5Utils {
public static String
digest(String password
) {
try {
MessageDigest digest
= MessageDigest
.getInstance("MD5");
byte[] bytes
= digest
.digest(password
.getBytes());
StringBuilder sb
= new StringBuilder();
for (byte b
: bytes
) {
int c
= b
& 0xff;
String result
= Integer
.toHexString(c
);
if(result
.length()<2){
sb
.append(0);
}
sb
.append(result
);
}
return sb
.toString();
} catch (Exception ex
) {
ex
.printStackTrace();
return "";
}
}
}
String str = “你是谁” 调用 MD5Utils.digest(str)
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