From 3bd15ca130fde30d38d63b1e343400ebebd7100e Mon Sep 17 00:00:00 2001
From: 13693261870 <252740454@qq.com>
Date: 星期五, 30 十二月 2022 15:34:53 +0800
Subject: [PATCH] 12.30.4
---
src/main/java/com/lf/server/helper/FileHelper.java | 101 ++++++++++++++++++++++++++++++++++++++++++--------
1 files changed, 84 insertions(+), 17 deletions(-)
diff --git a/src/main/java/com/lf/server/helper/FileHelper.java b/src/main/java/com/lf/server/helper/FileHelper.java
index 85bfbd4..38e8a7d 100644
--- a/src/main/java/com/lf/server/helper/FileHelper.java
+++ b/src/main/java/com/lf/server/helper/FileHelper.java
@@ -1,6 +1,8 @@
package com.lf.server.helper;
+import com.lf.server.entity.all.StaticData;
import com.lf.server.entity.data.MetaFileEntity;
+import com.twmacinta.util.MD5;
import org.apache.commons.codec.digest.DigestUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
@@ -8,6 +10,9 @@
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
+import java.nio.ByteBuffer;
+import java.nio.channels.FileChannel;
+import java.security.MessageDigest;
import java.text.DecimalFormat;
import java.util.List;
@@ -16,12 +21,6 @@
* @author WWW
*/
public class FileHelper {
- private final static String POINT = ".";
-
- public static final double D1024 = 1024.0;
-
- public static final double D1050 = 1050.0;
-
private final static Log log = LogFactory.getLog(FileHelper.class);
/**
@@ -49,7 +48,7 @@
String fileName = file.getName().toLowerCase();
- int idx = fileName.lastIndexOf(POINT);
+ int idx = fileName.lastIndexOf(StaticData.POINT);
if (idx == -1) {
return "";
}
@@ -65,7 +64,7 @@
return "";
}
- int idx = fileName.lastIndexOf(POINT);
+ int idx = fileName.lastIndexOf(StaticData.POINT);
if (idx == -1) {
return "";
}
@@ -167,19 +166,19 @@
* 瀛楄妭鍗曚綅鎹㈢畻
*/
public static String formatByte(long byteNumber) {
- double kbNumber = byteNumber / D1024;
- if (kbNumber < D1024) {
+ double kbNumber = byteNumber / StaticData.D1024;
+ if (kbNumber < StaticData.D1024) {
return new DecimalFormat("#.##KB").format(kbNumber);
}
- double mbNumber = kbNumber / D1024;
- if (mbNumber < D1024) {
+ double mbNumber = kbNumber / StaticData.D1024;
+ if (mbNumber < StaticData.D1024) {
return new DecimalFormat("#.##MB").format(mbNumber);
}
- double gbNumber = mbNumber / D1024;
- if (gbNumber < D1024) {
+ double gbNumber = mbNumber / StaticData.D1024;
+ if (gbNumber < StaticData.D1024) {
return new DecimalFormat("#.##GB").format(gbNumber);
}
- double tbNumber = gbNumber / D1024;
+ double tbNumber = gbNumber / StaticData.D1024;
return new DecimalFormat("#.##TB").format(tbNumber);
}
@@ -188,11 +187,11 @@
* byte杞琈B
*/
public static double sizeToMb(long size) {
- if (size < D1050) {
+ if (size < StaticData.D1050) {
return 0.001;
}
- String str = String.format("%.3f", size / D1024 / D1024);
+ String str = String.format("%.3f", size / StaticData.D1024 / StaticData.D1024);
return Double.parseDouble(str);
}
@@ -206,6 +205,18 @@
fileStream.close();
return md5;
+ }
+
+ /**
+ * 鑾峰彇蹇�� MD5 鐮�
+ */
+ public static String getFastMd5(String filePath) throws IOException {
+ String hash = MD5.asHex(MD5.getHash(new File(filePath)));
+
+ MD5 md5 = new MD5();
+ md5.Update(hash, null);
+
+ return md5.asHex();
}
/**
@@ -291,4 +302,60 @@
return file.substring(0, end);
}
+
+ /**
+ * 鑾峰彇鏂囦欢鐨凪D5
+ * @param file
+ * @return
+ */
+ @SuppressWarnings("unused")
+ public static String getFileMd5(File file) {
+ FileInputStream fis = null;
+ try {
+ MessageDigest md = MessageDigest.getInstance("MD5");
+
+ fis = new FileInputStream(file);
+ FileChannel fChannel = fis.getChannel();
+ ByteBuffer buffer = ByteBuffer.allocateDirect(1024 * 1024);
+
+ while (fChannel.read(buffer) != -1) {
+ buffer.flip();
+ md.update(buffer);
+ buffer.compact();
+ }
+ byte[] b = md.digest();
+
+ return byteToHexString(b);
+ } catch (Exception ex) {
+ ex.printStackTrace();
+ return null;
+ } finally {
+ try {
+ if (null != fis) {
+ fis.close();
+ }
+ } catch (IOException ex) {
+ ex.printStackTrace();
+ }
+ }
+ }
+
+ public static String byteToHexString(byte[] tmp) {
+ // 姣忎釜瀛楄妭鐢� 16 杩涘埗琛ㄧず鐨勮瘽锛屼娇鐢ㄤ袱涓瓧绗︼紝
+ char[] str = new char[16 * 2];
+
+ // 鎵�浠ヨ〃绀烘垚 16 杩涘埗闇�瑕� 32 涓瓧绗︼紝琛ㄧず杞崲缁撴灉涓搴旂殑瀛楃浣嶇疆
+ int k = 0;
+ // 浠庣涓�涓瓧鑺傚紑濮嬶紝瀵� MD5 鐨勬瘡涓�涓瓧鑺�
+ for (int i = 0; i < StaticData.SIXTEEN; i++) {
+ // 杞崲鎴� 16 杩涘埗瀛楃鐨勮浆鎹�
+ byte byte0 = tmp[i];
+ // 鍙栧瓧鑺備腑楂� 4 浣嶇殑鏁板瓧杞崲
+ str[k++] = StaticData.HEX_DIGITS[byte0 >>> 4 & 0xf];
+ // >>> 涓洪�昏緫鍙崇Щ锛屽皢绗﹀彿浣嶄竴璧峰彸绉伙紝 鍙栧瓧鑺備腑浣� 4 浣嶇殑鏁板瓧杞崲
+ str[k++] = StaticData.HEX_DIGITS[byte0 & 0xf];
+ }
+ // 鎹㈠悗鐨勭粨鏋滆浆鎹负瀛楃涓�
+ return new String(str);
+ }
}
--
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