FastDFS单机搭建以及java客户端Demo

http://blog.csdn.net/u012453843/article/details/69951920

http://blog.csdn.net/xyang81/article/details/52847311

http://blog.csdn.net/kingboyworld/article/details/52299602

参考了这几个搭建了FastDFS文件系统

主要是fastDFS，nginx，以及在nginx中加入fastDFS模块；这里只有一台服务器，所以搭建的是单机版的。

至于java客户端的包可以自己用maven编译，分分钟的事儿

https://github.com/happyfish100/fastdfs-client-java

编译完了打包到maven仓库中，直接用下面这个dependency

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

demo里面一共就引了这么几个：

<dependencies>
    <dependency>
        <groupId>commons-io</groupId>
        <artifactId>commons-io</artifactId>
        <version>1.4</version>
    </dependency>
    <dependency>
        <groupId>org.csource</groupId>
        <artifactId>fastdfs-client-java</artifactId>
        <version>1.27-SNAPSHOT</version>
    </dependency>
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.11</version>
        <scope>test</scope>
    </dependency>
</dependencies>

客户端操作的Demo：

public class FileUtilsDemo {

    private static StorageClient1 storageClient1 = null;

    // 初始化FastDFS Client
    static {
        try {
            ClassLoader classLoader = FileUtilsDemo.class.getClassLoader();
            URL resource = classLoader.getResource("fastdfs.conf");
            String path = resource.getPath();
            System.out.println(path);
            ClientGlobal.init(path);
            TrackerClient trackerClient = new TrackerClient(ClientGlobal.g_tracker_group);
            TrackerServer trackerServer = trackerClient.getConnection();
            if (trackerServer == null) {
                throw new IllegalStateException("getConnection return null");
            }
            StorageServer storageServer = trackerClient.getStoreStorage(trackerServer);
            if (storageServer == null) {
                throw new IllegalStateException("getStoreStorage return null");
            }
            storageClient1 = new StorageClient1(trackerServer,storageServer);

        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    /**
     * 上传文件
     * @param file 文件对象
     * @param fileName 文件名
     * @return
     */
    public static String uploadFile(File file, String fileName) {
        return uploadFile(file,fileName,null);
    }

    /**
     * 上传文件
     * @param file 文件对象
     * @param fileName 文件名
     * @param metaList 文件元数据
     * @return
     */
    public static String uploadFile(File file, String fileName, Map<String,String> metaList) {
        try {
            byte[] buff = IOUtils.toByteArray(new FileInputStream(file));
            NameValuePair[] nameValuePairs = null;
            if (metaList != null) {
                nameValuePairs = new NameValuePair[metaList.size()];
                int index = 0;
                for (Iterator<Map.Entry<String,String>> iterator = metaList.entrySet().iterator(); iterator.hasNext();) {
                    Map.Entry<String,String> entry = iterator.next();
                    String name = entry.getKey();
                    String value = entry.getValue();
                    nameValuePairs[index++] = new NameValuePair(name,value);
                }
            }

            return storageClient1.upload_file1(buff, FilenameUtils.getExtension(fileName),nameValuePairs);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    /**
     * 获取文件元数据
     * @param fileId 文件ID
     * @return
     */
    public static Map<String,String> getFileMetadata(String fileId) {
        try {
            NameValuePair[] metaList = storageClient1.get_metadata1(fileId);
            if (metaList != null) {
                HashMap<String,String> map = new HashMap<String, String>();
                for (NameValuePair metaItem : metaList) {
                    map.put(metaItem.getName(),metaItem.getValue());
                }
                return map;
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    /**
     * 删除文件
     * @param fileId 文件ID
     * @return 删除失败返回-1，否则返回0
     */
    public static int deleteFile(String fileId) {
        try {
            return storageClient1.delete_file1(fileId);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return -1;
    }

    /**
     * 下载文件
     * @param fileId 文件ID（上传文件成功后返回的ID）
     * @param outFile 文件下载保存位置
     * @return
     */
    public static int downloadFile(String fileId, File outFile) {
        FileOutputStream fos = null;
        try {
            byte[] content = storageClient1.download_file1(fileId);
            fos = new FileOutputStream(outFile);
            IOUtils.copy(new ByteInputStream(content, content.length),fos);
            return 0;
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (fos != null) {
                try {
                    fos.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        return -1;
    }
}

客户端测试的Demo：

public class FastDFSClientTest {

    /**
     * 文件上传测试
     */
    @Test
    public void testUpload() {
        File file = new File("C:\\Users\\023b5bb5c9ea15ce4ed7034ebc003af33a87b2b8.jpg");
        Map<String,String> metaList = new HashMap<String, String>();
        metaList.put("width","1024");
        metaList.put("height","768");
        metaList.put("date","20161018");
        String fid = FileUtilsDemo.uploadFile(file,file.getName(), metaList);
        System.out.println("upload local file " + file.getPath() + " ok, fileid=" + fid);
    }

    /**
     * 文件下载测试
     */
    @Test
    public void testDownload() {
        int r = FileUtilsDemo.downloadFile("group1/M00/00/00/cjdUkFo3fXeAAvUDAAFiCZy66os105.jpg", new File("DownloadFile_fid.jpg"));
        System.out.println(r == 0 ? "下载成功" : "下载失败");
    }

    /**
     * 获取文件元数据测试
     */
    @Test
    public void testGetFileMetadata() {
        Map<String,String> metaList = FileUtilsDemo.getFileMetadata("group1/M00/00/00/wKgAyVgFk9aAB8hwAA-8Q6_7tHw351.jpg");
        for (Iterator<Map.Entry<String,String>> iterator = metaList.entrySet().iterator(); iterator.hasNext();) {
            Map.Entry<String,String> entry = iterator.next();
            String name = entry.getKey();
            String value = entry.getValue();
            System.out.println(name + " = " + value );
        }
    }

    /**
     * 文件删除测试
     */
    @Test
    public void testDelete() {
        int r = FileUtilsDemo.deleteFile("group1/M00/00/00/wKgAyVgFk9aAB8hwAA-8Q6_7tHw351.jpg");
        System.out.println(r == 0 ? "删除成功" : "删除失败");
    }

}

配置文件：

connect_timeout = 10
network_timeout = 30
charset = UTF-8
http.tracker_http_port = 8999
http.anti_steal_token = no
http.secret_key = FastDFS1234567890
tracker_server = 192.168.88.520:22122

反正我这个文件里面写了注释，然后就报错了，我就把注释删除了就好了。一套下来接近2个小时可以搞定，搞不定问我，哈哈