Merge branch 'master' of http://key@gitlab.linkfern.com/key/common.git

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;
@@ -89,7 +93,7 @@ public class FileUtil {
 	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;
@@ -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) {
@@ -196,13 +200,14 @@ public class FileUtil {
 
 	/**
 	 * 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;
@@ -230,13 +235,14 @@ public class FileUtil {
 
 	/**
 	 * 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;
@@ -244,6 +250,7 @@ public class FileUtil {
 
 	/**
 	 * 将文件转化为字节数组
+	 * 
 	 * @param file
 	 * @return
 	 */
@@ -268,12 +275,13 @@ public class FileUtil {
 
 	/**
 	 * 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;
@@ -322,17 +330,18 @@ public class FileUtil {
 
 	/**
 	 * 移动文件
+	 * 
 	 * @param src 原文件
 	 * @param des 目标文件
 	 * @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)) {
+			if (!src.renameTo(des)) {
 				fileCopy(src, des);
 				fileDelete(src);
 			}
@@ -343,10 +352,11 @@ public class FileUtil {
 
 	/**
 	 * 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();
@@ -398,13 +408,13 @@ public class FileUtil {
 		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) {
@@ -455,10 +465,10 @@ public class FileUtil {
 
 	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) {
@@ -472,7 +482,7 @@ public class FileUtil {
 
 	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;
@@ -552,7 +562,6 @@ public class FileUtil {
 		return !new File(jspname).exists();
 	}
 
-	
 	public static Object fileToObject(File file) {
 		FileInputStream fis = null;
 		ObjectInputStream ois = null;
@@ -576,11 +585,59 @@ 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
+			// 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.write(content + "\n");
 			writer.close();
 		} catch (IOException e) {
 			e.printStackTrace();