（上传文件）fastDFSClient----客户端工具类

package cn.kgc.core.util;

import org.apache.commons.io.FilenameUtils;
import org.csource.common.NameValuePair;
import org.csource.fastdfs.ClientGlobal;
import org.csource.fastdfs.StorageClient1;
import org.csource.fastdfs.StorageServer;
import org.csource.fastdfs.TrackerClient;
import org.csource.fastdfs.TrackerServer;

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;
	}
	//  这个比较好用
	public String uploadFile(byte[] file, String fileName, long fileSize) throws Exception {
		NameValuePair[] metas = new NameValuePair[3];
		metas[0] = new NameValuePair("fileName", fileName);
		metas[1] = new NameValuePair("fileSize", String.valueOf(fileSize));
		metas[2] = new NameValuePair("fileExt", FilenameUtils.getExtension(fileName));
		String result = storageClient.upload_file1(file, FilenameUtils.getExtension(fileName), 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);
	}
}

工具类放在common（公共模块）下面

原文地址：https://www.cnblogs.com/Hubert-dzl/p/11563955.html