案例管理

stdiet-common/src/main/java/com/stdiet/common/utils/file/FileUtils.java

@@ -1,11 +1,6 @@
 package com.stdiet.common.utils.file;
 
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileNotFoundException;
-import java.io.IOException;
-import java.io.OutputStream;
-import java.io.UnsupportedEncodingException;
+import java.io.*;
 import java.net.URLEncoder;
 import javax.servlet.http.HttpServletRequest;
 
@@ -74,6 +69,55 @@ public class FileUtils extends org.apache.commons.io.FileUtils
         }
     }
 
+    /**
+     * 输出指定文件的byte数组
+     *
+     * @param inputStream 输入流
+     * @param os 输出流
+     * @return
+     */
+    public static void writeBytes(InputStream inputStream, OutputStream os) throws IOException
+    {
+        try
+        {
+            byte[] b = new byte[1024];
+            int length;
+            while ((length = inputStream.read(b)) > 0)
+            {
+                os.write(b, 0, length);
+            }
+        }
+        catch (IOException e)
+        {
+            throw e;
+        }
+        finally
+        {
+            if (os != null)
+            {
+                try
+                {
+                    os.close();
+                }
+                catch (IOException e1)
+                {
+                    e1.printStackTrace();
+                }
+            }
+            if (inputStream != null)
+            {
+                try
+                {
+                    inputStream.close();
+                }
+                catch (IOException e1)
+                {
+                    e1.printStackTrace();
+                }
+            }
+        }
+    }
+
     /**
      * 删除文件
      * 

stdiet-common/src/main/java/com/stdiet/common/utils/oss/AliyunOSSUtils.java

@@ -13,20 +13,10 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.util.UUID;
 
-public class AliyunOSSUtils {
-
-    // 创建OSSClient实例
-    private static OSS ossClient = null;
+public class AliyunOSSUtils { ;
 
     public static OSS getOssClient() {
-        if (ossClient == null) {
-            synchronized (OSS.class) {
-                if (ossClient == null) {
-                    ossClient = new OSSClientBuilder().build(AliyunOSSConfig.EndPoint, AliyunOSSConfig.AccessKeyID, AliyunOSSConfig.AccessKeySecret);
-                }
-            }
-        }
-        return ossClient;
+        return new OSSClientBuilder().build(AliyunOSSConfig.EndPoint, AliyunOSSConfig.AccessKeyID, AliyunOSSConfig.AccessKeySecret);
     }
 
     /**
@@ -204,7 +194,7 @@ public class AliyunOSSUtils {
      *
      * @param fileURL       文件的url
      */
-    public InputStream downloadFile(String fileURL) throws IOException {
+    public static InputStream downloadFile(String fileURL) throws IOException {
 
         //将url解析成objectName
         String objectName = getObjectName(fileURL);