From 092d7c56bb8653075b8f4b27220e69e6bb8e5d37 Mon Sep 17 00:00:00 2001
From: ‘liusuyi’ <1951119284@qq.com>
Date: 星期四, 09 十一月 2023 16:49:26 +0800
Subject: [PATCH] 增加超脑业务
---
src/main/java/com/ard/utils/other/ByteUtils.java | 66 +++++++++++++++++++++++++++-----
1 files changed, 55 insertions(+), 11 deletions(-)
diff --git a/src/main/java/com/ard/utils/other/ByteUtils.java b/src/main/java/com/ard/utils/other/ByteUtils.java
index 752b333..0c11f68 100644
--- a/src/main/java/com/ard/utils/other/ByteUtils.java
+++ b/src/main/java/com/ard/utils/other/ByteUtils.java
@@ -1,9 +1,14 @@
package com.ard.utils.other;
+import javax.xml.bind.DatatypeConverter;
import java.io.ByteArrayOutputStream;
import java.io.UnsupportedEncodingException;
import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.nio.charset.StandardCharsets;
import java.util.zip.CRC32;
+
+import static oracle.security.pki.util.SignatureAlgorithms.i;
/**
* @Description: 瀛楄妭宸ュ叿绫�
@@ -13,10 +18,25 @@
* @Version: 1.0
**/
public class ByteUtils {
+
+ /**
+ * 鎵撳嵃鍗佸叚杩涘埗浜岃繘鍒�
+ */
+ public static String printHexBinary(byte[] bytes) {
+ return DatatypeConverter.printHexBinary(bytes);
+ }
+
/**
* byte鏁扮粍杞腑鏂囧瓧绗︿覆
*/
public static String bytesToStringZh(byte[] bytes) {
+ //ByteBuffer buffer = ByteBuffer.wrap(bytes); // byteArray 鏄寘鍚瓧鑺傛暟缁勭殑鍙橀噺
+ //try {
+ // return new String(buffer.array(), "GBK");
+ //} catch (UnsupportedEncodingException e) {
+ // e.printStackTrace();
+ //}
+ //return "";
String zhStr = "";
try {
int position = ByteUtils.findIndexOfDoubleZero(bytes);
@@ -61,28 +81,27 @@
* byte鏁扮粍杞暣鍨�
*/
public static int bytesToDecimal(byte[] byteArray) {
+ //ByteBuffer buffer = ByteBuffer.wrap(byteArray); // byteArray 鏄寘鍚瓧鑺傛暟缁勭殑鍙橀噺
+ //return buffer.getInt();
int decimalValue = 0;
-
for (int i = 0; i < byteArray.length; i++) {
decimalValue = (decimalValue << 8) | (byteArray[i] & 0xFF);
}
-
return decimalValue;
}
+
/**
* byte鏁扮粍杞珼ouble
*/
public static double bytesToDouble(byte[] byteArray) {
- long longBits = 0;
-
- // 鏍规嵁瀛楄妭鏁扮粍鐨勯暱搴﹀拰瀛楄妭椤哄簭锛屽皢瀛楄妭鏁扮粍杞崲涓洪暱鏁村瀷
- for (int i = 0; i < byteArray.length; i++) {
- longBits |= (long) (byteArray[i] & 0xFF) << (8 * (byteArray.length - 1 - i));
- }
-
- // 浣跨敤Double.longBitsToDouble鏂规硶灏嗛暱鏁村瀷杞崲涓篋ouble绫诲瀷
- return Double.longBitsToDouble(longBits);
+ // 鍒涘缓涓�涓狟yteBuffer
+ ByteBuffer buffer = ByteBuffer.wrap(byteArray);
+ //璁剧疆瀛楄妭椤哄簭涓哄ぇ绔�
+ buffer.order(ByteOrder.LITTLE_ENDIAN);
+ // 浠嶣yteBuffer涓幏鍙杁ouble鍊�
+ double doubleValue = buffer.getDouble();
+ return doubleValue;
}
/**
@@ -119,6 +138,31 @@
return buffer.array();
}
+
+ /**
+ * double杞琤yte鏁扮粍
+ */
+ public static byte[] doubleToBytes(double d) {
+ // 鍒涘缓涓�涓� ByteBuffer锛屽垎閰嶈冻澶熺殑绌洪棿鏉ュ瓨鍌ㄤ竴涓� float 鍊�
+ ByteBuffer buffer = ByteBuffer.allocate(Double.BYTES);
+ // 灏� float 鍊煎啓鍏� ByteBuffer
+ buffer.putDouble(d);
+ // 鑾峰彇瀛楄妭鏁扮粍
+ return buffer.array();
+ }
+
+ /**
+ * float杞琤yte鏁扮粍
+ */
+ public static byte[] floatToBytes(float f) {
+ // 鍒涘缓涓�涓� ByteBuffer锛屽垎閰嶈冻澶熺殑绌洪棿鏉ュ瓨鍌ㄤ竴涓� float 鍊�
+ ByteBuffer buffer = ByteBuffer.allocate(Float.BYTES);
+ // 灏� float 鍊煎啓鍏� ByteBuffer
+ buffer.putFloat(f);
+ // 鑾峰彇瀛楄妭鏁扮粍
+ return buffer.array();
+ }
+
/**
* byte鏁扮粍鎷兼帴
*/
--
Gitblit v1.9.3