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xlornexlorne
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add Arithmetic.java and HmacSHA256.java and FullDateFormatUtils
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6 files changed

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6 files changed

+312
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lines changed

‎springboot-starter/src/main/java/com/codingapi/springboot/framework/crypto/HmacSHA256.java

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package com.codingapi.springboot.framework.crypto;
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import javax.crypto.Mac;
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import javax.crypto.spec.SecretKeySpec;
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import java.security.InvalidKeyException;
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import java.security.NoSuchAlgorithmException;
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public class HmacSHA256 {
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public static byte[] sha256(byte[] message,byte[] secret) throws NoSuchAlgorithmException, InvalidKeyException {
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Mac sha256_HMAC = Mac.getInstance("HmacSha256");
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SecretKeySpec secretKey = new SecretKeySpec(secret,"HmacSha256");
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sha256_HMAC.init(secretKey);
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return sha256_HMAC.doFinal(message);
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}
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}

‎springboot-starter/src/main/java/com/codingapi/springboot/framework/math/Arithmetic.java

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package com.codingapi.springboot.framework.math;
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import java.math.BigDecimal;
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import java.math.BigInteger;
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import java.math.RoundingMode;
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public class Arithmetic {
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private BigDecimal value;
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private final static int DEFAULT_SCALE = 4;
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private final static RoundingMode DEFAULT_ROUNDING_MODE = RoundingMode.HALF_UP;
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public static Arithmetic zero(){
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return parse(0);
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}
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public static Arithmetic one(){
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return parse(1);
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}
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public static Arithmetic parse(int value){
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return new Arithmetic(value);
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}
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public static Arithmetic parse(float value){
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return new Arithmetic(value);
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}
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public static Arithmetic parse(double value){
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return new Arithmetic(value);
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}
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public static Arithmetic parse(long value){
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return new Arithmetic(value);
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}
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public Arithmetic(String value) {
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this.value = new BigDecimal(value);
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}
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public Arithmetic(int value) {
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this(String.valueOf(value));
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}
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public Arithmetic(float value) {
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this(String.valueOf(value));
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}
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public Arithmetic(double value) {
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this(String.valueOf(value));
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}
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public Arithmetic(long value) {
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this(String.valueOf(value));
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}
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public Arithmetic add(Arithmetic val){
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this.value = this.value.add(val.value);
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return this;
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}
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public Arithmetic add(String val){
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this.value = this.value.add(new Arithmetic(val).value);
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return this;
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}
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public Arithmetic add(int val){
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this.value = this.value.add(new Arithmetic(val).value);
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return this;
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}
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public Arithmetic add(float val){
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this.value = this.value.add(new Arithmetic(val).value);
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return this;
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}
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public Arithmetic add(double val){
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this.value = this.value.add(new Arithmetic(val).value);
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return this;
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}
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public Arithmetic add(long val){
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this.value = this.value.add(new Arithmetic(val).value);
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return this;
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}
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public Arithmetic sub(Arithmetic val){
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this.value =this.value.subtract(val.value);
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return this;
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}
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public Arithmetic sub(String val){
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this.value =this.value.subtract(new Arithmetic(val).value);
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return this;
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}
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public Arithmetic sub(int val){
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this.value =this.value.subtract(new Arithmetic(val).value);
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return this;
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}
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public Arithmetic sub(float val){
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this.value =this.value.subtract(new Arithmetic(val).value);
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return this;
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}
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public Arithmetic sub(double val){
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this.value =this.value.subtract(new Arithmetic(val).value);
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return this;
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}
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public Arithmetic sub(long val){
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this.value =this.value.subtract(new Arithmetic(val).value);
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return this;
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}
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public Arithmetic mul(Arithmetic val){
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this.value = this.value.multiply(val.value);
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return this;
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}
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public Arithmetic mul(String val){
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this.value = this.value.multiply(new Arithmetic(val).value);
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return this;
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}
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public Arithmetic mul(int val){
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this.value = this.value.multiply(new Arithmetic(val).value);
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return this;
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}
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public Arithmetic mul(float val){
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this.value = this.value.multiply(new Arithmetic(val).value);
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return this;
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}
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public Arithmetic mul(double val){
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this.value = this.value.multiply(new Arithmetic(val).value);
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return this;
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}
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public Arithmetic mul(long val){
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this.value = this.value.multiply(new Arithmetic(val).value);
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return this;
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}
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public Arithmetic div(Arithmetic val){
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this.value = this.value.divide(val.value,DEFAULT_SCALE, DEFAULT_ROUNDING_MODE);
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return this;
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}
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public Arithmetic div(String val){
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this.value = this.value.divide(new Arithmetic(val).value, DEFAULT_SCALE,DEFAULT_ROUNDING_MODE);
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return this;
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}
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public Arithmetic div(int val){
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this.value = this.value.divide(new Arithmetic(val).value,DEFAULT_SCALE, DEFAULT_ROUNDING_MODE);
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return this;
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}
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public Arithmetic div(float val){
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this.value = this.value.divide(new Arithmetic(val).value,DEFAULT_SCALE, DEFAULT_ROUNDING_MODE);
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return this;
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}
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public Arithmetic div(double val){
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this.value = this.value.divide(new Arithmetic(val).value,DEFAULT_SCALE,DEFAULT_ROUNDING_MODE);
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return this;
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}
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public Arithmetic div(long val){
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this.value = this.value.divide(new Arithmetic(val).value, DEFAULT_SCALE,DEFAULT_ROUNDING_MODE);
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return this;
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}
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public BigDecimal getValue() {
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return value;
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}
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public String getStringValue() {
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return value.toString();
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}
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public BigInteger getBigIntegerValue() {
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return value.toBigInteger();
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}
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public int getIntValue() {
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return value.intValue();
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}
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public double getDoubleValue() {
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return value.doubleValue();
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}
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public float getFloatValue() {
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return value.floatValue();
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}
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public long getLongValue() {
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return value.longValue();
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}
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public Arithmetic halfUpScale2(){
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return halfUpScale(2);
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}
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public Arithmetic halfUpScale(int scale){
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value = value.setScale(scale,RoundingMode.HALF_UP);
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return this;
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}
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}
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‎springboot-starter/src/main/java/com/codingapi/springboot/framework/utils/FullDateFormatUtils.java

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package com.codingapi.springboot.framework.utils;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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public class FullDateFormatUtils {
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private final static SimpleDateFormat defaultFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
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public static String convert(long timestamp){
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return convert(new Date(timestamp));
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}
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public static String convert(Date date){
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return defaultFormat.format(date);
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}
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}
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‎springboot-starter/src/test/java/com/codingapi/springboot/framework/crypto/HmacSHA256Test.java

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package com.codingapi.springboot.framework.crypto;
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import org.junit.jupiter.api.Test;
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import org.springframework.util.Base64Utils;
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import java.security.InvalidKeyException;
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import java.security.NoSuchAlgorithmException;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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class HmacSHA256Test {
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@Test
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void sha256() throws NoSuchAlgorithmException, InvalidKeyException {
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String data = Base64Utils.encodeToString(HmacSHA256.sha256("123456".getBytes(),"123456".getBytes()));
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assertEquals("uK0Io6VH41gpuCG3U3AwHdjEsGvdd3H5tUGnWRQGhxg=",data);
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}
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}

‎springboot-starter/src/test/java/com/codingapi/springboot/framework/math/ArithmeticTest.java

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package com.codingapi.springboot.framework.math;
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import org.junit.jupiter.api.Test;
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import static org.junit.jupiter.api.Assertions.*;
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class ArithmeticTest {
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@Test
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void test() {
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// 1 + 1 x 3 / 4 = 1.25
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assertEquals(Arithmetic.one().add(1).mul(3).div(4).getDoubleValue(),1.5);
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// 0.1+0.2=0.3
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assertEquals(Arithmetic.parse(0.1).add(0.2).getDoubleValue(),0.3);
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// (1.5 x 3.1) + (3.4 x 4.5) = 19.95
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assertEquals((Arithmetic.parse(1.5).mul(3.1)).add(Arithmetic.parse(3.4).mul(4.5)).getDoubleValue(),19.95);
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}
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}

‎springboot-starter/src/test/java/com/codingapi/springboot/framework/utils/FullDateFormatUtilsTest.java

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package com.codingapi.springboot.framework.utils;
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import org.junit.jupiter.api.Test;
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import static org.junit.jupiter.api.Assertions.*;
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class FullDateFormatUtilsTest {
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@Test
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void convert() {
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long time = 1663590528793L;
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String data =FullDateFormatUtils.convert(time);
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assertEquals(data,"2022-09-19 20:28:48");
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}
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}

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