张伟昌签名

oa-app/src/test/java/com/css/oa/supervision/waitexec/service/impl/MyTest.java

import org.apache.commons.codec.binary.Hex;
import org.junit.Test;
import java.security.InvalidKeyException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.security.MessageDigest;
import java.util.Date;
import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
import static javax.xml.crypto.dsig.SignatureMethod.HMAC_SHA1;
//import static javax.xml.crypto.dsig.SignatureMethod.HMAC_SHA1;
public class MyTest {
//
//    @Test
//        //return md5Result;
//    }
    @Test
    public void numFormat() {
        double result1=0.51111122111111;
        DecimalFormat df = new DecimalFormat("0.0%");
        String r = df.format(result1);
        System.out.println(r);//great
//    @Test
//    public void numFormat() {
//        double result1=0.51111122111111;
//        DecimalFormat df = new DecimalFormat("0.0%");
//        String r = df.format(result1);
//        System.out.println(r);//great
//
//
////        System.out.println("numberString => "+numberString);
//    }
    @Test
    public void a3() {
        String accessKeyId = "hellocode";
        String secureKey = "f53d3819d5e265984fc8911d36377280";
//        System.out.println("numberString => "+numberString);
        long timestamp = 1619770939;//new Date().getTime();
        try {
            String signature = hmacsha1((accessKeyId + "\n" + timestamp).getBytes(), secureKey.getBytes());
            System.out.println(signature);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    private String hmacsha1(byte[] data, byte[] key) throws Exception {
        SecretKeySpec signingKey = new SecretKeySpec(key, "HmacSHA1");
        Mac mac = Mac.getInstance("HmacSHA1");
        mac.init(signingKey);
        byte[] rawHmac = mac.doFinal(data);
        return org.apache.commons.codec.binary.Base64.encodeBase64String(rawHmac);
    }
}