coding++: java 操作FastDFS(上传 | 下载 | 删除)

package cn.com.soundrecording.controller;

import cn.com.soundrecording.utils.FastDFSClient;
import com.sun.net.httpserver.HttpContext;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.commons.io.IOUtils;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.net.URLEncoder;
import java.util.List;

@RestController
public class UploedController {

private final String URL = "http://wlkjs.cn/";

//上传到服务器
@PostMapping("/upload")
@ResponseBody
public String uploed(MultipartFile multipartFile, HttpServletRequest request) throws Exception {

//文件类型
boolean isMultipart = ServletFileUpload.isMultipartContent(request);
//02、上传到服务器
FastDFSClient dfsClient = new FastDFSClient("config/fastdfs.properties");
String url = dfsClient.uploadFile(multipartFile.getBytes(), request.getParameter("type"));
System.out.println(url);
return URL + url;

}

//从服务器下载
@GetMapping("/download")
public void download(String fileName, HttpServletResponse response) throws Exception {
String name, groupName, remoteFileName;
//初始化连接
FastDFSClient dfsClient = new FastDFSClient("config/fastdfs.properties");
//获取 group1 名称
groupName = fileName.substring(fileName.indexOf("group1"), fileName.indexOf("/M00"));
//获取 文件全路径 M00..xxxxx
remoteFileName = fileName.substring(fileName.indexOf("M00"));
name = fileName.substring(fileName.lastIndexOf("/"));
//执行下载
byte[] content = dfsClient.download(groupName, remoteFileName);
//响应到客户端下载
response.setContentType("application/ms-mp3;charset=UTF-8");
response.setHeader("Content-Disposition", "attachment;filename="
.concat(String.valueOf(URLEncoder.encode(name, "UTF-8"))));
OutputStream out = response.getOutputStream();
out.write(content);
out.flush();
out.close();
}

//从服务器删除
@PostMapping("/delete")
public Object delete(String fileName) throws Exception {
String groupName, remoteFileName;
//获取 group1 名称
groupName = fileName.substring(fileName.indexOf("group1"), fileName.indexOf("/M00"));
//获取 文件全路径 M00..xxxxx
remoteFileName = fileName.substring(fileName.indexOf("M00"));
//执行删除
FastDFSClient dfsClient = new FastDFSClient("config/fastdfs.properties");
//返回 0 代表成功
int i = dfsClient.delete(groupName, remoteFileName);
System.out.println(i == 0 ? "删除成功" : "删除失败:" + i);
return i;
}

}