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package class33;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.security.Security;
// 需要自己找一下javax.xml.bind的jar然后导入到项目
import javax.xml.bind.DatatypeConverter;
public class Hash {
private MessageDigest hash;
public Hash(String algorithm) {
try {
hash = MessageDigest.getInstance(algorithm);
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
}
}
public String hashCode(String input) {
return DatatypeConverter.printHexBinary(hash.digest(input.getBytes())).toUpperCase();
}
public static void main(String[] args) {
System.out.println("支持的算法 : ");
for (String str : Security.getAlgorithms("MessageDigest")) {
System.out.println(str);
}
System.out.println("=======");
String algorithm = "MD5";
Hash hash = new Hash(algorithm);
String input1 = "zuochengyunzuochengyun1";
String input2 = "zuochengyunzuochengyun2";
String input3 = "zuochengyunzuochengyun3";
String input4 = "zuochengyunzuochengyun4";
String input5 = "zuochengyunzuochengyun5";
System.out.println(hash.hashCode(input1));
System.out.println(hash.hashCode(input2));
System.out.println(hash.hashCode(input3));
System.out.println(hash.hashCode(input4));
System.out.println(hash.hashCode(input5));
}
}