增加上传和更新页面

app/src/main/java/com/example/mir4updater/utils/HashUtils.java

@@ -0,0 +1,83 @@
+package com.example.mir4updater.utils;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+
+public class HashUtils {
+
+
+    public static String getFileMD5(File file) throws NoSuchAlgorithmException, IOException {
+        MessageDigest md = MessageDigest.getInstance("MD5");
+        FileInputStream fis = new FileInputStream(file);
+        byte[] dataBytes = new byte[1024];
+
+        int bytesRead;
+        while ((bytesRead = fis.read(dataBytes)) != -1) {
+            md.update(dataBytes, 0, bytesRead);
+        }
+
+        byte[] mdBytes = md.digest();
+
+        StringBuilder sb = new StringBuilder();
+        for (byte mdByte : mdBytes) {
+            sb.append(Integer.toString((mdByte & 0xff) + 0x100, 16).substring(1));
+        }
+        return sb.toString();
+    }
+
+    public static String calculateMd5(InputStream inputStream)
+            throws NoSuchAlgorithmException, IOException {
+        MessageDigest digest = MessageDigest.getInstance("MD5");
+        byte[] buffer = new byte[8192];
+        int bytesRead;
+
+        while ((bytesRead = inputStream.read(buffer)) != -1) {
+            digest.update(buffer, 0, bytesRead);
+        }
+
+        return bytesToHex(digest.digest());
+    }
+
+
+    public static String calculateSHA1(File file) throws NoSuchAlgorithmException, IOException {
+        MessageDigest digest = MessageDigest.getInstance("SHA-1");
+        try (InputStream inputStream = new FileInputStream(file)) {
+            byte[] buffer = new byte[4096];
+            int bytesRead;
+            while ((bytesRead = inputStream.read(buffer)) != -1) {
+                digest.update(buffer, 0, bytesRead);
+            }
+        }
+        byte[] hashBytes = digest.digest();
+        return bytesToHex(hashBytes);
+    }
+
+    public static String calculateSHA256(File file) throws NoSuchAlgorithmException, IOException {
+        MessageDigest digest = MessageDigest.getInstance("SHA-256");
+        try (InputStream inputStream = new FileInputStream(file)) {
+            byte[] buffer = new byte[4096];
+            int bytesRead;
+            while ((bytesRead = inputStream.read(buffer)) != -1) {
+                digest.update(buffer, 0, bytesRead);
+            }
+        }
+        byte[] hashBytes = digest.digest();
+        return bytesToHex(hashBytes);
+    }
+
+    private static String bytesToHex(byte[] bytes) {
+        StringBuilder hexString = new StringBuilder();
+        for (byte b : bytes) {
+            String hex = String.format("%02x", b & 0xFF);
+            /*大写*/
+//            String hex = String.format("%02X", b & 0xFF);
+            hexString.append(hex);
+        }
+        return hexString.toString();
+    }
+}
+