FastDFS java客户端

首先添加相应的jar包：

<!-- 添加FastDFS客户端的引用 -->
		<dependency>
			<groupId>fastdfs_client</groupId>
			<artifactId>fastdfs_client</artifactId>
			<version>1.25</version>
		</dependency>
			<!-- 文件上传组件 -->
		<dependency>
			<groupId>commons-fileupload</groupId>
			<artifactId>commons-fileupload</artifactId>
                         <version>1.3.1</version>  
               </dependency>

测试类：

配置文件：client.conf

tracker_server=192.168.25.133:22122

public class TestFastDFS {

	@Test
	public void uploadFile() throws Exception {
		//1、向工程中添加jar包
		//2、创建一个配置文件。配置tracker服务器地址
		//3、加载配置文件
		ClientGlobal.init("D:/client.conf");
		//4、创建一个TrackerClient对象。
		TrackerClient trackerClient = new TrackerClient();
		//5、使用TrackerClient对象获得trackerserver对象。
		TrackerServer trackerServer = trackerClient.getConnection();
		//6、创建一个StorageServer的引用null就可以。
		StorageServer storageServer = null;
		//7、创建一个StorageClient对象。trackerserver、StorageServer两个参数。
		StorageClient storageClient = new StorageClient(trackerServer, storageServer);
		//8、使用StorageClient对象上传文件。
		String[] strings = storageClient.upload_file("D:/200811281555127886.jpg", "jpg", null);
		for (String string : strings) {
			System.out.println(string);
			
		}
	}
	
}

工具类：

public class FastDFSClient {

	private TrackerClient trackerClient = null;
	private TrackerServer trackerServer = null;
	private StorageServer storageServer = null;
	private StorageClient1 storageClient = null;
	
	public FastDFSClient(String conf) throws Exception {
		if (conf.contains("classpath:")) {
			conf = conf.replace("classpath:", this.getClass().getResource("/").getPath());
		}
		ClientGlobal.init(conf);
		trackerClient = new TrackerClient();
		trackerServer = trackerClient.getConnection();
		storageServer = null;
		storageClient = new StorageClient1(trackerServer, storageServer);
	}
	
	/**
	 * 上传文件方法
	 * <p>Title: uploadFile</p>
	 * <p>Description: </p>
	 * @param fileName 文件全路径
	 * @param extName 文件扩展名，不包含（.）
	 * @param metas 文件扩展信息
	 * @return
	 * @throws Exception
	 */
	public String uploadFile(String fileName, String extName, NameValuePair[] metas) throws Exception {
		String result = storageClient.upload_file1(fileName, extName, metas);
		return result;
	}
	
	public String uploadFile(String fileName) throws Exception {
		return uploadFile(fileName, null, null);
	}
	
	public String uploadFile(String fileName, String extName) throws Exception {
		return uploadFile(fileName, extName, null);
	}
	
	/**
	 * 上传文件方法
	 * <p>Title: uploadFile</p>
	 * <p>Description: </p>
	 * @param fileContent 文件的内容，字节数组
	 * @param extName 文件扩展名
	 * @param metas 文件扩展信息
	 * @return
	 * @throws Exception
	 */
	public String uploadFile(byte[] fileContent, String extName, NameValuePair[] metas) throws Exception {
		
		String result = storageClient.upload_file1(fileContent, extName, metas);
		return result;
	}
	
	public String uploadFile(byte[] fileContent) throws Exception {
		return uploadFile(fileContent, null, null);
	}
	
	public String uploadFile(byte[] fileContent, String extName) throws Exception {
		return uploadFile(fileContent, extName, null);
	}
}