FastDFS Java Api 操作

原創 zyy_sunshine 2018-12-08 02:43
2018年01月29日 12:50:24 閱讀數：3933 
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FastDFS Java Api 操作

1.用eclipse把源代碼打成jar文件：(源代碼下載地址：https://github.com/happyfish100/fastdfs-client-java)


2、把fastdfs_client.jar 添加到Maven倉庫

  1. #執行 maven命令 添加fastdfs_client.jar 到maven 倉庫
  2. mvn install:install-file -DgroupId=org.csource -DartifactId=fastdfs-client-java -Dversion=5.0.4 -Dpackaging=jar -Dfile=/Users/shenwei/Desktop/fastdfs_client.jar

3、查看 fastdfs_client.jar。可以看到jar文件


4、創建一個maven項目，在pom中添加 fastdfs_client 依賴。

  1. #添加依賴
  2. <dependency>
  3.   <groupId>junit</groupId>
  4.   <artifactId>junit</artifactId>
  5.   <version>4.11</version>
  6.   <scope>test</scope>
  7. </dependency>
  8.  
  9. <dependency>
  10.   <groupId>org.csource</groupId>
  11.   <artifactId>fastdfs-client-java</artifactId>
  12.   <version>5.0.4</version>
  13. </dependency>

5、在src/main/resource 下創建 fdfs_client.conf 配置文件 

  1. #fdfs_client.conf 配置
  2. connect_timeout = 10
  3. network_timeout = 30
  4. charset = UTF-8
  5. http.tracker_http_port = 8888
  6. http.anti_steal_token = no
  7. http.secret_key = FastDFS1234567890
  8.  
  9. tracker_server = 100.98.22.253:22122
  10. #如果有多臺服務，指定集羣的IP
  11. #tracker_server = 192.168.10.250:22122

6、測試fastDFS 上傳、下載、刪除、獲取文件信息 

  1. import java.io.FileOutputStream;
  2. import java.io.IOException;
  3. import java.io.OutputStream;
  4.  
  5. import org.csource.common.NameValuePair;
  6. import org.csource.fastdfs.ClientGlobal;
  7. import org.csource.fastdfs.FileInfo;
  8. import org.csource.fastdfs.StorageClient;
  9. import org.csource.fastdfs.StorageClient1;
  10. import org.csource.fastdfs.StorageServer;
  11. import org.csource.fastdfs.TrackerClient;
  12. import org.csource.fastdfs.TrackerServer;
  13. import org.junit.Test;
  14.  
  15. public class TestFastDfs {
  16.     
  17. 	//fdfs_client 核心配置文件
  18.     public String conf_filename = "src/main/resources/fdfs_client.conf"; 
  19.  
  20.     @Test
  21.     public void testUpload() {	//上傳文件
  22.     	TrackerServer trackerServer =null;
  23.     	StorageServer storageServer = null;
  24.     	
  25.         try { 
  26.             ClientGlobal.init(conf_filename);
  27.             TrackerClient tracker = new TrackerClient(); 
  28.             trackerServer = tracker.getConnection(); 
  29.             StorageClient1 client = new StorageClient1(trackerServer, storageServer); 
  30.             
  31.             //要上傳的文件路徑
  32.             String local_filename = "/Users/shenwei/Desktop/1.png";
  33. //            這個參數可以指定，也可以不指定，如果指定了，可以根據 testGetFileMate()方法來獲取到這裏面的值
  34. //            NameValuePair nvp [] = new NameValuePair[]{ 
  35. //                    new NameValuePair("age", "18"), 
  36. //                    new NameValuePair("sex", "male") 
  37. //            }; 
  38.             
  39.             StorageClient storageClient = new StorageClient(trackerServer, storageServer);
  40. //          String fileIds[] = storageClient.upload_file(local_filename, "png", nvp);
  41.             String fileIds[] = storageClient.upload_file(local_filename, "png", null);
  42.             
  43.             System.out.println(fileIds.length); 
  44.             System.out.println("組名：" + fileIds[0]); 
  45.             System.out.println("路徑: " + fileIds[1]);
  46.         } catch (Exception e) { 
  47.             e.printStackTrace(); 
  48.         } finally{
  49. 			try {
  50. 				if(null!=storageServer) storageServer.close();
  51. 				if(null!=trackerServer) trackerServer.close();
  52. 			} catch (IOException e) {
  53. 				// TODO Auto-generated catch block
  54. 				e.printStackTrace();
  55. 			}
  56.         }
  57.     }
  58.  
  59.     @Test 
  60.     public void testDownload() {	//下載文件
  61.     	TrackerServer trackerServer =null;
  62.     	StorageServer storageServer = null;
  63.     	
  64.         try {
  65.         	String groupName = "group1";
  66.         	String filePath = "M00/00/00/ZGIW_lpujW-ADvpRAAblmT4ACuo125.png";
  67.             ClientGlobal.init(conf_filename);
  68.  
  69.             TrackerClient tracker = new TrackerClient(); 
  70.             trackerServer = tracker.getConnection(); 
  71.  
  72.             StorageClient storageClient = new StorageClient(trackerServer, storageServer); 
  73.             byte[] bytes = storageClient.download_file(groupName, filePath); 
  74.             
  75.             String storePath = "/Users/shenwei/Desktop/download.png";
  76.             OutputStream out = new FileOutputStream(storePath);
  77.             out.write(bytes);
  78.         } catch (Exception e) { 
  79.             e.printStackTrace(); 
  80.         } finally{
  81. 			try {
  82. 				if(null!=storageServer) storageServer.close();
  83. 				if(null!=trackerServer) trackerServer.close();
  84. 			} catch (IOException e) {
  85. 				// TODO Auto-generated catch block
  86. 				e.printStackTrace();
  87. 			}
  88.         }
  89.     }
  90.     
  91.     @Test 
  92.     public void testGetFileInfo(){ //獲取文件信息
  93.     	TrackerServer trackerServer =null;
  94.     	StorageServer storageServer = null;
  95.     
  96.         try { 
  97.         	String groupName = "group1";
  98.         	String filePath = "M00/00/00/ZGIW_lpujW-ADvpRAAblmT4ACuo125.png";
  99.             ClientGlobal.init(conf_filename);
  100.  
  101.             TrackerClient tracker = new TrackerClient(); 
  102.             trackerServer = tracker.getConnection(); 
  103.  
  104.             StorageClient storageClient = new StorageClient(trackerServer, storageServer); 
  105.             FileInfo file = storageClient.get_file_info(groupName, filePath); 
  106.             System.out.println("ip--->"+file.getSourceIpAddr()); 
  107.             System.out.println("文件大小--->"+file.getFileSize()); 
  108.             System.out.println("文件上傳時間--->"+file.getCreateTimestamp()); 
  109.             System.out.println(file.getCrc32()); 
  110.         } catch (Exception e) { 
  111.             e.printStackTrace(); 
  112.         } finally{
  113. 			try {
  114. 				if(null!=storageServer) storageServer.close();
  115. 				if(null!=trackerServer) trackerServer.close();
  116. 			} catch (IOException e) {
  117. 				// TODO Auto-generated catch block
  118. 				e.printStackTrace();
  119. 			}
  120.        }
  121.     } 
  122.     
  123.     @Test 
  124.     public void testGetFileMate(){ //獲取文件的原數據類型
  125.     	TrackerServer trackerServer =null;
  126.     	StorageServer storageServer = null;
  127.     	
  128.     	try { 
  129.     		String groupName = "group1";
  130.         	String filePath = "M00/00/00/ZGIW_lpujW-ADvpRAAblmT4ACuo125.png";
  131.     		ClientGlobal.init(conf_filename);
  132.  
  133.             TrackerClient tracker = new TrackerClient(); 
  134.             trackerServer = tracker.getConnection(); 
  135.  
  136.             StorageClient storageClient = new StorageClient(trackerServer, 
  137.                     storageServer); 
  138.             
  139.             //這個值是上傳的時候指定的NameValuePair
  140.             NameValuePair nvps [] = storageClient.get_metadata(groupName, filePath); 
  141.             if(null!=nvps && nvps.length>0){
  142.             	for(NameValuePair nvp : nvps){ 
  143.             		System.out.println(nvp.getName() + ":" + nvp.getValue()); 
  144.             	} 
  145.             }
  146.         } catch (Exception e) { 
  147.             e.printStackTrace(); 
  148.         } finally{
  149. 			try {
  150. 				if(null!=storageServer) storageServer.close();
  151. 				if(null!=trackerServer) trackerServer.close();
  152. 			} catch (IOException e) {
  153. 				// TODO Auto-generated catch block
  154. 				e.printStackTrace();
  155. 			}
  156.        }
  157.     } 
  158.     
  159.     @Test 
  160.     public void testDelete(){ //刪除文件
  161.     	TrackerServer trackerServer =null;
  162.     	StorageServer storageServer = null;
  163.     	
  164.     	try { 
  165.     		String groupName = "group1";
  166.         	String filePath = "M00/00/00/ZGIW_lpujW-ADvpRAAblmT4ACuo125.png";
  167.     		ClientGlobal.init(conf_filename);
  168.  
  169.             TrackerClient tracker = new TrackerClient(); 
  170.             trackerServer = tracker.getConnection(); 
  171.  
  172.             StorageClient storageClient = new StorageClient(trackerServer, 
  173.                     storageServer); 
  174.             int i = storageClient.delete_file(groupName, filePath); 
  175.             System.out.println( i==0 ? "刪除成功" : "刪除失敗:"+i); 
  176.         } catch (Exception e) { 
  177.             e.printStackTrace(); 
  178.         } finally{
  179. 			try {
  180. 				if(null!=storageServer) storageServer.close();
  181. 				if(null!=trackerServer) trackerServer.close();
  182. 			} catch (IOException e) {
  183. 				// TODO Auto-generated catch block
  184. 				e.printStackTrace();
  185. 			}
  186.        }
  187.     }
  188. }
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