上传后台管理系统代码

novel-admin/src/main/java/com/java2nb/common/utils/FileUtil.java

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+package com.java2nb.common.utils;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.util.UUID;
+
+public class FileUtil {
+
+	public static void uploadFile(byte[] file, String filePath, String fileName) throws Exception {
+		File targetFile = new File(filePath);
+		if (!targetFile.exists()) {
+			targetFile.mkdirs();
+		}
+		FileOutputStream out = new FileOutputStream(filePath + fileName);
+		out.write(file);
+		out.flush();
+		out.close();
+	}
+
+	public static boolean deleteFile(String fileName) {
+		File file = new File(fileName);
+		// 如果文件路径所对应的文件存在，并且是一个文件，则直接删除
+		if (file.exists() && file.isFile()) {
+			if (file.delete()) {
+				return true;
+			} else {
+				return false;
+			}
+		} else {
+			return false;
+		}
+	}
+
+	public static String renameToUUID(String fileName) {
+		return UUID.randomUUID() + "." + fileName.substring(fileName.lastIndexOf(".") + 1);
+	}
+}