FastDFS实战（四）- Java集成FastDFS

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一、 下载 https://github.com/happyfish100/fastdfs-client-java.git

二、解压缩 安装到本地仓库

<!-- fastdfs java依赖 -->
<dependency>
   <groupId>org.csource</groupId>
   <artifactId>fastdfs-client-java</artifactId>
   <version>1.27-SNAPSHOT</version>
</dependency>

三、准备配置文件 fdfs_client.conf 放置在src下

connect_timeout = 2
network_timeout = 30
charset = UTF-8
http.tracker_http_port = 80
http.anti_steal_token = no
http.secret_key = FastDFS1234567890

tracker_server = 192.168.128.141:22122

注1：tracker_server指向您自己IP地址和端口，1-n个
注2：除了tracker_server，其它配置项都是可选的

四、测试

1. 测试上传

   private String conf_filename="fdfs_client.conf";
   @Test
   public void testUpload(){
      try {
          ClientGlobal.init(conf_filename);
   
          TrackerClient client = new TrackerClient();
   
          TrackerServer server = client.getConnection();
   
          StorageClient storageClient = new StorageClient(server, null);
   
          NameValuePair[] nameValuePairs = new NameValuePair[]{
                  new NameValuePair("id","100"),
                  new NameValuePair("name","小红")
   
          };
          String[] file = storageClient.upload_file("d:\\c.jpg", "jpg", nameValuePairs);
   
          for (String s : file) {
              System.out.println(s);
          }
   
      } catch (IOException e) {
          e.printStackTrace();
      } catch (MyException e) {
          e.printStackTrace();
      }
   }

   

2. 测试下载

   @Test
   public void testDownLoad(){
       try {
           ClientGlobal.init(conf_filename);
   
           TrackerServer trackerServer = new TrackerClient().getConnection();
   
           StorageClient storageClient = new StorageClient(trackerServer, null);
   
           byte[] bytes = storageClient.download_file("group1", "M00/00/00/wKiAjVlpGguASKnyAADQcgmZjMs583.jpg");
   
           FileOutputStream stream = new FileOutputStream("test.jpg");
   
           stream.write(bytes);
   
           stream.close();
       } catch (IOException e) {
           e.printStackTrace();
       } catch (MyException e) {
           e.printStackTrace();
       }
   }

3. 测试删除

   @Test
   public void testDelete(){
      try {
          ClientGlobal.init(conf_filename);
   
          TrackerServer trackerServer = new TrackerClient().getConnection();
   
          StorageClient storageClient = new StorageClient(trackerServer, null);
   
          int i= storageClient.delete_file("group1", "M00/00/00/wKiAjVlpGguASKnyAADQcgmZjMs583.jpg");
   
      } catch (IOException e) {
          e.printStackTrace();
      } catch (MyException e) {
          e.printStackTrace();
      }
   }

4. 测试获取元数据

   @Test
   public void testGetMetaData(){
       try {
           ClientGlobal.init(conf_filename);
   
           TrackerServer trackerServer = new TrackerClient().getConnection();
   
           StorageClient storageClient = new StorageClient(trackerServer, null);
   
           NameValuePair[] metadata = storageClient.get_metadata("group1", "M00/00/00/wKiAjVlpHBuAJE_yAADQcgmZjMs320.jpg");
   
           for (NameValuePair metadatum : metadata) {
               System.out.println(metadatum.getName()+"  "+metadatum.getValue());
           }
       } catch (IOException e) {
           e.printStackTrace();
       } catch (MyException e) {
           e.printStackTrace();
       }
   }

5. 测试获取文件信息

   @Test
   public void testGetFileInfo(){
       try {
           ClientGlobal.init(conf_filename);
   
           TrackerServer trackerServer = new TrackerClient().getConnection();
   
           StorageClient storageClient = new StorageClient(trackerServer, null);
   
           FileInfo fileInfo = storageClient.get_file_info("group1", "M00/00/00/wKiAiVlkVcqALRgEAAAABudnRxc478.txt");
   
           System.out.println(fileInfo.getSourceIpAddr()+"  "+fileInfo.getCreateTimestamp()+"  "+fileInfo.getFileSize()+"  "+fileInfo.getCrc32());
       } catch (IOException e) {
           e.printStackTrace();
       } catch (MyException e) {
           e.printStackTrace();
       }
   }