Using JDK to implement a simple MD5 tool class in Java

MD5 tool class

Use JDK to encapsulate a simple MD5 tool class. The logic is relatively simple. I will directly post the specific implementation

public static String getMD5(String content) {
    String result = "";
    try {
        MessageDigest md = MessageDigest.getInstance("md5");
        md.update(content.getBytes());
        byte[] bytes = md.digest();
        StringBuilder sb = new StringBuilder();
        for (byte b : bytes) {
            String str = Integer.toHexString(b & 0xFF);
            if (str.length() == 1) {
                sb.append("0");
            }
            sb.append(str);
        }
        result = sb.toString();
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    }
    return result;
}

@Test
public void testMd5() {
    System.out.println(getMD5("hello world"));
}

The test output is:

5eb63bbbe01eeed093cb22bb8f5acdc3

Use the shell to verify it

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