上次文件到FastDFS步骤
spring boot项目下添加FastDFS
首先在pom.xml中加入
commons-fileupload
commons-fileupload
1.3.3
这个jar是需要自己加入的
com.github.tobato
fastdfs-client
1.26.1-RELEASE
获取fastdfs-client自定义jar包
链接：https://pan.baidu.com/s/13arvtucGnQFqZ5lBSpJV1A 提取码：2gn3
fast工厂类
package com.sms.tenantexamineserver.io;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.csource.common.MyException;
import org.csource.fastdfs.*;
import org.springframework.core.io.ClassPathResource;
import java.io.FileNotFoundException;
import java.io.IOException;
/**
* 客户端工厂类
* @author Administrator
*/
public class FastDFSFactory {
private static Logger log= LogManager.getLogger(FastDFSFactory.class);
/**
* 创建存储客户端对象
*/
private static FastDFSFactory fastDFSFactory=new FastDFSFactory();
private String fdfsConfigFilename="fdfs_client.conf";
private StorageClient storageClient = null;
private FastDFSFactory(){
ClassPathResource classPathResource = new ClassPathResource(fdfsConfigFilename);
String path="";
try {
path = classPathResource.getFile().getPath();
} catch (IOException e1) {
e1.printStackTrace();
}
try {
ClientGlobal.init(path);
TrackerClient tracker = new TrackerClient();
TrackerServer trackerServer = tracker.getConnection();
StorageServer storageServer = tracker.getStoreStorage(trackerServer);
if (storageServer == null) {
log.error("getStoreStorage fail, error code: " + tracker.getErrorCode());
}
storageClient = new StorageClient(trackerServer, storageServer);
} catch (FileNotFoundException e) {
log.error(e);
} catch (IOException e) {
log.error(e);
} catch (MyException e) {
log.error(e);
}
}
public static FastDFSFactory getInstance() {
return fastDFSFactory;
}
public StorageClient getStorageClient() {
return storageClient;
}
public void setStorageClient(StorageClient storageClient) {
this.storageClient = storageClient;
}
}
接口层
package com.sms.tenantexamineserver.io;
import java.io.File;
import java.io.InputStream;
public interface FilePersistence {
String[] uploadFile(String fileName, String extName, String[] meta_list) throws Exception;
String[] uploadFile(byte[] fileBuff, String fileName, String extName, String[] meta_list) throws Exception;
String[] uploadFile(File file, String fileName, String extName, String[] meta_list) throws Exception;
InputStream downloadFile(String path, String filename) throws Exception;
byte[] downloadByte(String path, String filename) throws Exception;
byte[] downloadByte(String path, String filename, long fileOffset, long downloadBytes) throws Exception;
boolean deleteFile(String path, String filename) throws Exception;
String[] modifyFile(String groupName, String remoteFileName, String fileName, String extName, String[] meta_list) throws Exception;
String[] modifyFile(String groupName, String remoteFileName, byte[] fileBuff, String fileName, String extName, String[] meta_list) throws Exception;
String[] modifyFile(String groupName, String remoteFileName, File file, String fileName, String extName, String[] meta_list) throws Exception;
boolean checkFile(String path, String filename);
}
实现类，客户端层
package com.sms.tenantexamineserver.io;
import org.csource.common.MyException;
import org.csource.common.NameValuePair;
import org.csource.fastdfs.StorageClient;
import org.springframework.stereotype.Component;
import java.io.*;
/**
* FastDFS客户端类
* @author Administrator
*/
@Component
public class FastDFSClient implements FilePersistence {
/**
* 根据本地文件名上传
* @Create_by:xiedan
* @param fileName 本地文件名，包含全路径和扩展名
* @param extName 文件扩展名
* @param meta_list 元数据,可为空
* @return string[0] groupName 分组名, string[1] remoteFileName 服务器存储文件名
* @throws Exception
*/
@Override
public String[] uploadFile(String fileName, String extName,
String[] meta_list) throws Exception {
StorageClient storageClient = FastDFSFactory.getInstance().getStorageClient();
NameValuePair[] nameValuePairs = getNameValuePair(meta_list);
return storageClient.upload_file(fileName, extName, nameValuePairs);
}
/**
* 根据字节流上传
* @Create_by:xiedan
* @param fileBuff 上传文件字节流
* @param extName 文件扩展名
* @param meta_list 元数据,可为空
* @return
* @throws Exception
*/
@Override
public String[] uploadFile(byte[] fileBuff,String fileName, String extName,
String[] meta_list) throws Exception {
StorageClient storageClient = FastDFSFactory.getInstance().getStorageClient();
NameValuePair[] nameValuePairs = getNameValuePair(meta_list);
return storageClient.upload_file(fileBuff, extName, nameValuePairs);
}
/**
* 根据File对象上传
* @Create_by:xiedan
* @param file File对象
* @param extName 文件扩展名
* @param meta_list 元数据,可为空
* @return
* @throws Exception
*/
@Override
public String[] uploadFile(File file,String fileName, String extName, String[] meta_list) throws Exception {
StorageClient storageClient = FastDFSFactory.getInstance().getStorageClient();
InputStream fis = new FileInputStream(file);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
byte[] fileBuff = new byte[(int) file.length()];
fis.read(fileBuff);
bos.write(fileBuff);
fis.close();
bos.close();
NameValuePair[] nameValuePairs = getNameValuePair(meta_list);
return storageClient.upload_file(fileBuff, extName, nameValuePairs);
}
/**
* 下载文件
* @Create_by:xiedan
* @param groupName 组名，上传时服务器返回
* @param remoteFileName 远程文件名，上传时服务器返回
* @return byte[] 下载文件字节流
* @throws MyException
* @throws Exception
*/
@Override
public InputStream downloadFile(String groupName,String remoteFileName) throws Exception {
return new ByteArrayInputStream(downloadByte(groupName,remoteFileName));
}
@Override
public byte[] downloadByte(String groupName, String remoteFileName) throws Exception {
return downloadByte(groupName,remoteFileName,0,0);
}
@Override
public byte[] downloadByte(String groupName, String remoteFileName, long fileOffset, long downloadBytes) throws Exception {
StorageClient storageClient = FastDFSFactory.getInstance().getStorageClient();
byte[] data = storageClient.download_file(groupName, remoteFileName,fileOffset,downloadBytes);
return data;
}
/**
* 删除文件
* @Create_by:xiedan
* @param groupName
* @param remoteFileName
* @return 返回0表示成功
* @throws Exception
*/
@Override
public boolean deleteFile(String groupName, String remoteFileName) throws Exception {
StorageClient storageClient = FastDFSFactory.getInstance().getStorageClient();
return storageClient.delete_file(groupName, remoteFileName)==0?true:false;
}
/**
* 修改文件
* @Create_by:xiedan
* @param groupName
* @param remoteFileName
* @param fileName
* @param extName
* @param meta_list
* @return string[0] groupName 分组名, string[1] remoteFileName 服务器存储文件名
* @throws Exception
*/
@Override
public String[] modifyFile(String groupName, String remoteFileName,
String fileName,String extName,String[] meta_list) throws Exception {
StorageClient storageClient = FastDFSFactory.getInstance().getStorageClient();
storageClient.delete_file(groupName, remoteFileName);
NameValuePair[] nameValuePairs = getNameValuePair(meta_list);
return storageClient.upload_file(fileName, extName, nameValuePairs);
}
/**
* 修改文件
* @Create_by:xiedan
* @param groupName
* @param remoteFileName
* @param fileName
* @param extName
* @param meta_list
* @return string[0] groupName 分组名, string[1] remoteFileName 服务器存储文件名
* @throws Exception
*/
@Override
public String[] modifyFile(String groupName, String remoteFileName,
byte[] fileBuff,String fileName, String extName, String[] meta_list) throws Exception {
StorageClient storageClient = FastDFSFactory.getInstance().getStorageClient();
storageClient.delete_file(groupName, remoteFileName);
return this.uploadFile(fileBuff,fileName, extName, meta_list);
}
/**
* 修改文件
* @Create_by:xiedan
* @param groupName
* @param remoteFileName
* @param fileName
* @param extName
* @param meta_list
* @return string[0] groupName 分组名, string[1] remoteFileName 服务器存储文件名
* @throws Exception
*/
@Override
public String[] modifyFile(String groupName, String remoteFileName,
File file,String fileName, String extName, String[] meta_list) throws Exception {
StorageClient storageClient = FastDFSFactory.getInstance().getStorageClient();
storageClient.delete_file(groupName, remoteFileName);
return this.uploadFile(file,fileName, extName, meta_list);
}
private NameValuePair[] getNameValuePair(String[] meta_list){
NameValuePair[] nameValuePairs = null;
if(null!=meta_list && meta_list.length>0){
nameValuePairs=new NameValuePair[meta_list.length];
for(int i=0,length=meta_list.length;i以上三个类放在主类能扫描到的包下
fdfs_client.conf在resources目录下和application.xml在一个文件下fdfs_client.conf名称注意在工厂类中对应fdfsConfigFilename获取参数
connect_timeout=30
network_timeout=60
base_path=/fdfs/client
tracker_server=192.168.1.216:22122
log_level=info
use_connection_pool = false
connection_pool_max_idle_time = 3600
load_fdfs_parameters_from_tracker=false
use_storage_id = false
storage_ids_filename = storage_ids.conf
http.tracker_server_port=80
客户端调用
@ApiOperation(value = "ceshi")
@PostMapping("/TEST")
public ResultMessage TestDfs(@RequestParam MultipartFile file){
try{
String filename = file.getOriginalFilename();//获取提交文件名称
int index = filename.lastIndexOf(".");
String[] test = null;
String extName = filename.substring(index);//获取提交文件后缀名称（jpg）
String [] fileSixe = fastDFSClient.uploadFile(file.getBytes(),filename,extName,test);//上传
//返回两个String用来下载文件
byte[] by = fastDFSClient.downloadByte(fileSixe[0], fileSixe[1]);//下载
String path = "E:/2019";
File fi = new File(path);
if (!fi.exists()){
fi.mkdirs();
}
OutputStream out = new FileOutputStream(new File("E:\\"+path+filename));
out.write(by);
out.flush();
return ResultMessage.Success("chenggong" );
}catch (Exception e){
e.printStackTrace();
}
return ResultMessage.Success("shibai" );
}