加一个

src/main/java/com/egolm/common/FileUtil.java

@@ -14,9 +14,13 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.io.ObjectInputStream;
 import java.io.ObjectOutputStream;
+import java.io.OutputStream;
 import java.io.OutputStreamWriter;
 import java.io.UnsupportedEncodingException;
 import java.io.Writer;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.net.URLConnection;
 import java.nio.file.Files;
 import java.nio.file.Paths;
 import java.util.HashMap;
@@ -77,7 +81,7 @@ public class FileUtil {
 			throw new FileUtilException(e);
 		}
 	}
-	
+
 	public final static String contentType(String fullName) {
 		try {
 			return Files.probeContentType(Paths.get(fullName));
@@ -85,16 +89,16 @@ public class FileUtil {
 			throw new FileUtilException(e);
 		}
 	}
-	
+
 	public final static String getExtName(File file) {
 		String extName = null;
 		String fileName = file.getName();
-		if(fileName.contains(".")) {
+		if (fileName.contains(".")) {
 			extName = fileName.substring(fileName.lastIndexOf(".") + 1).toUpperCase();
 		}
 		return extName;
 	}
-	
+
 	public final static String imageType(File imageFile) {
 		if (isImage(imageFile)) {
 			ImageInputStream iis = null;
@@ -126,7 +130,7 @@ public class FileUtil {
 		InputStream is = null;
 		try {
 			String extName = getExtName(file);
-			if(StringUtil.isNotBlank(extName)) {
+			if (StringUtil.isNotBlank(extName)) {
 				return extName;
 			} else {
 				is = new FileInputStream(file);
@@ -137,7 +141,7 @@ public class FileUtil {
 			return getExtName(file);
 		} finally {
 			try {
-				if(is != null) {
+				if (is != null) {
 					is.close();
 				}
 			} catch (IOException e) {
@@ -145,7 +149,7 @@ public class FileUtil {
 			}
 		}
 	}
-	
+
 	public final static String fileType(byte[] b) {
 		String filetypeHex = String.valueOf(fileHex(b));
 		Iterator<Entry<String, String>> entryiterator = FILE_TYPE_MAP.entrySet().iterator();
@@ -193,16 +197,17 @@ public class FileUtil {
 		}
 		return stringBuilder.toString();
 	}
-	
+
 	/**
 	 * 将字节数组转化为文件
+	 * 
 	 * @param bytes
 	 * @param filename
 	 * @return
 	 */
 	public static File bytesToFile(byte[] bytes, File file) {
 		File parent = file.getParentFile();
-		if(!parent.exists()) {
+		if (!parent.exists()) {
 			parent.mkdirs();
 		}
 		BufferedOutputStream stream = null;
@@ -223,27 +228,29 @@ public class FileUtil {
 		}
 		return file;
 	}
-	
+
 	public static File bytesToFile(byte[] bytes, String filename) {
 		return bytesToFile(bytes, new File(filename));
 	}
-	
+
 	/**
 	 * 将字节数组转化为文件
+	 * 
 	 * @param bytes
 	 * @param filenames
 	 * @return
 	 */
 	public static File[] bytesToFiles(byte[][] bytes, String[] filenames) {
 		File[] files = new File[filenames.length];
-		for(int i = 0; i < filenames.length; i++) {
+		for (int i = 0; i < filenames.length; i++) {
 			files[i] = bytesToFile(bytes[i], filenames[i]);
 		}
 		return files;
 	}
-	
+
 	/**
 	 * 将文件转化为字节数组
+	 * 
 	 * @param file
 	 * @return
 	 */
@@ -265,28 +272,29 @@ public class FileUtil {
 		}
 		return bytes;
 	}
-	
+
 	/**
 	 * 将文件转化为字节数组
+	 * 
 	 * @param files
 	 * @return
 	 */
 	public static byte[][] filesToBytes(File[] files) {
 		byte[][] datas = new byte[files.length][];
-		for(int i = 0; i < files.length; i++) {
+		for (int i = 0; i < files.length; i++) {
 			datas[i] = fileToBytes(files[i]);
 		}
 		return datas;
 	}
-	
-	 /** 
-     * 复制文件或文件夹
-     * 
-     * @param src 源文件
-     * @param des 目标文件
-     * @throws IOException 异常时抛出 
-     */ 
-    public static void fileCopy(File src, File des) { 
+
+	/**
+	 * 复制文件或文件夹
+	 * 
+	 * @param src 源文件
+	 * @param des 目标文件
+	 * @throws IOException 异常时抛出
+	 */
+	public static void fileCopy(File src, File des) {
 		if (!src.exists()) {
 			return;
 		}
@@ -318,35 +326,37 @@ public class FileUtil {
 				fileCopy(sf, new File(des.getAbsolutePath() + File.separator + sf.getName()));
 			}
 		}
-    }
-	
+	}
+
 	/**
 	 * 移动文件
+	 * 
 	 * @param src 原文件
 	 * @param des 目标文件
-	 * @throws IOException 
+	 * @throws IOException
 	 */
 	public static void fileMove(File src, File des) {
-		if(src != null) {
+		if (src != null) {
 			File parent = des.getParentFile();
-			if(!parent.exists()) {
+			if (!parent.exists()) {
 				parent.mkdirs();
 			}
-			if(!src.renameTo(des)) {
-				fileCopy(src, des); 
-				fileDelete(src); 
+			if (!src.renameTo(des)) {
+				fileCopy(src, des);
+				fileDelete(src);
 			}
 		} else {
 			throw new FileUtilException("要移动的源文件不存在：" + src);
 		}
 	}
-	
+
 	/**
 	 * 删除文件
+	 * 
 	 * @param file 目标文件
 	 */
 	public static void fileDelete(File... files) {
-		for(File file : files) {
+		for (File file : files) {
 			if (file.exists()) {
 				if (file.isFile()) {
 					file.delete();
@@ -359,7 +369,7 @@ public class FileUtil {
 			}
 		}
 	}
-	
+
 	public static byte[] streamToBytes(InputStream instream) {
 		byte[] bytes = null;
 		ByteArrayOutputStream baos = null;
@@ -382,29 +392,29 @@ public class FileUtil {
 		}
 		return bytes;
 	}
-	
+
 	public static File streamToFile(InputStream instream, File file) {
 		FileUtil.createFile(file);
 		byte[] bytes = FileUtil.streamToBytes(instream);
 		return FileUtil.bytesToFile(bytes, file);
 	}
-	
+
 	public static File streamToFile(InputStream instream, String fileName) {
 		return FileUtil.streamToFile(instream, new File(fileName));
 	}
-	
+
 	public static void stringToFile(File file, String... strings) {
 		FileOutputStream fos = null;
 		OutputStreamWriter osw = null;
 		Writer writer = null;
 		try {
-			if(!file.getParentFile().exists()) {
+			if (!file.getParentFile().exists()) {
 				file.getParentFile().mkdirs();
 			}
 			fos = new FileOutputStream(file);
 			osw = new OutputStreamWriter(fos, "UTF-8");
 			writer = new BufferedWriter(osw);
-			for(String string : strings) {
+			for (String string : strings) {
 				writer.append(string).append(System.getProperty("line.separator"));
 			}
 		} catch (IOException e) {
@@ -419,11 +429,11 @@ public class FileUtil {
 			}
 		}
 	}
-	
+
 	public static void stringToFile(String fileFullName, String... strings) {
 		FileUtil.stringToFile(new File(fileFullName), strings);
 	}
-	
+
 	public static String fileToString(File file, String charset) {
 		try {
 			return new String(FileUtil.fileToBytes(file), charset);
@@ -431,34 +441,34 @@ public class FileUtil {
 			throw new FileUtilException("Unsupported charset:" + charset, e);
 		}
 	}
-	
+
 	public static String fileToString(String fileFullName, String charset) {
 		return FileUtil.fileToString(new File(fileFullName), charset);
 	}
-	
+
 	public static String fileToString(File file) {
 		return FileUtil.fileToString(file, "UTF-8");
 	}
-	
+
 	public static String fileToString(String fileFullName) {
 		return FileUtil.fileToString(new File(fileFullName));
 	}
-	
+
 	public static File fileFromClasspath(String name) {
 		String fullName = FileUtil.class.getResource(name).getPath();
 		return new File(fullName);
 	}
-	
+
 	public static File createFile(String name) {
 		return FileUtil.createFile(new File(name));
 	}
-	
+
 	public static File createFile(File file) {
 		File folder = file.getParentFile();
-		if(!(folder.exists() && folder.isDirectory())) {
+		if (!(folder.exists() && folder.isDirectory())) {
 			folder.mkdirs();
 		}
-		if(!file.exists() || file.isDirectory()) {
+		if (!file.exists() || file.isDirectory()) {
 			try {
 				file.createNewFile();
 			} catch (IOException e) {
@@ -469,15 +479,15 @@ public class FileUtil {
 		}
 		return file;
 	}
-	
+
 	public static File createFolder(String name) {
 		File folder = new File(name);
-		if(!folder.exists() || folder.isFile()) {
+		if (!folder.exists() || folder.isFile()) {
 			folder.mkdirs();
 		}
 		return folder;
 	}
-	
+
 	public static void objectToFile(Object obj, File file) {
 		FileOutputStream fos = null;
 		ObjectOutputStream oos = null;
@@ -498,22 +508,22 @@ public class FileUtil {
 			}
 		}
 	}
-	
+
 	public static InputStream bytesToInputStream(byte[] bytes) {
 		return new ByteArrayInputStream(bytes);
 	}
-	
+
 	/**
-     * 序列化
-     * 
-     * @param object
-     * @return
-	 * @throws IOException 
-     */
-    public static byte[] objToBytes(Object object) throws IOException {
-        ObjectOutputStream oos = null;
-        ByteArrayOutputStream baos = null;
-        try {
+	 * 序列化
+	 * 
+	 * @param object
+	 * @return
+	 * @throws IOException
+	 */
+	public static byte[] objToBytes(Object object) throws IOException {
+		ObjectOutputStream oos = null;
+		ByteArrayOutputStream baos = null;
+		try {
 			baos = new ByteArrayOutputStream();
 			oos = new ObjectOutputStream(baos);
 			oos.writeObject(object);
@@ -525,20 +535,20 @@ public class FileUtil {
 			baos.flush();
 			baos.close();
 		}
-    }
-
-    /**
-     * 反序列化
-     * 
-     * @param bytes
-     * @return
-     * @throws IOException 
-     * @throws ClassNotFoundException 
-     */
-    public static Object bytesToObj(byte[] bytes) throws IOException, ClassNotFoundException {
-        ByteArrayInputStream bais = null;
-        ObjectInputStream ois = null;
-        try {
+	}
+
+	/**
+	 * 反序列化
+	 * 
+	 * @param bytes
+	 * @return
+	 * @throws IOException
+	 * @throws ClassNotFoundException
+	 */
+	public static Object bytesToObj(byte[] bytes) throws IOException, ClassNotFoundException {
+		ByteArrayInputStream bais = null;
+		ObjectInputStream ois = null;
+		try {
 			bais = new ByteArrayInputStream(bytes);
 			ois = new ObjectInputStream(bais);
 			return ois.readObject();
@@ -546,13 +556,12 @@ public class FileUtil {
 			ois.close();
 			bais.close();
 		}
-    }
-	
+	}
+
 	public static boolean isNotExists(String jspname) {
 		return !new File(jspname).exists();
 	}
-	
-	
+
 	public static Object fileToObject(File file) {
 		FileInputStream fis = null;
 		ObjectInputStream ois = null;
@@ -575,15 +584,63 @@ public class FileUtil {
 			}
 		}
 	}
-	
+
+	public static void urlToFile(String url, String savePath,String fileName) {
+		InputStream is = null;
+		OutputStream os = null;
+		try {
+			// 构造URL
+			URL weburl = new URL(url);
+			// 打开连接
+			URLConnection con = weburl.openConnection();
+			// 设置请求超时为5s
+			con.setConnectTimeout(5 * 1000);
+			// 输入流
+			is = con.getInputStream();
+
+			// 1K的数据缓冲
+			byte[] bs = new byte[1024];
+			// 读取到的数据长度
+			int len;
+			// 输出的文件流
+			File sf = new File(savePath);
+
+			if (!sf.exists()) {
+				sf.mkdirs();
+			}
+			 os = new FileOutputStream(savePath+"/"+fileName);
+			// 开始读取
+			while ((len = is.read(bs)) != -1) {
+				os.write(bs, 0, len);
+			}
+		} catch (IOException e) {
+			e.printStackTrace();
+		}finally {
+			if(os != null) {
+				try {
+					os.close();
+				} catch (IOException e) {
+					e.printStackTrace();
+				}
+			}
+			if(is != null) {
+				try {
+					is.close();
+				} catch (IOException e) {
+					e.printStackTrace();
+				}
+			}
+		}
+	}
+
 	public static void appendMethod(String fileName, String content) {
-        try {
-            //打开一个写文件器，构造函数中的第二个参数true表示以追加形式写文件
-            FileWriter writer = new FileWriter(fileName, true);
-            writer.write(content+"\n");
-            writer.close();
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
-    }
+		try {
+			// 打开一个写文件器，构造函数中的第二个参数true表示以追加形式写文件
+			FileWriter writer = new FileWriter(fileName, true);
+			writer.write(content + "\n");
+			writer.close();
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+	}
 }
\ No newline at end of file