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package cn.ibizlab.util.rest;
import cn.ibizlab.util.domain.FileItem;
import cn.ibizlab.util.service.FileService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
@Slf4j
@RestController
@RequestMapping("/")
public class FileController
{
@Autowired
private FileService fileService;
@PostMapping(value = "${ibiz.file.uploadpath:ibizutil/upload}")
public ResponseEntity<FileItem> upload(@RequestParam("file") MultipartFile multipartFile){
return ResponseEntity.ok().body(fileService.saveFile(multipartFile));
}
private final String defaultdownloadpath="ibizutil/download/{id}";
@GetMapping(value = "${ibiz.file.downloadpath:"+defaultdownloadpath+"}")
@ResponseStatus(HttpStatus.OK)
public void download(@PathVariable String id, HttpServletResponse response){
File file= fileService.getFile(id);
response.setHeader("Content-Disposition", "attachment;filename="+getFileName(file.getName()));
this.sendRespose(response, file);
}
protected void sendRespose(HttpServletResponse response, File file){
BufferedInputStream bis = null;
BufferedOutputStream bos = null;
try {
bis = new BufferedInputStream(new FileInputStream(file));
bos = new BufferedOutputStream(response.getOutputStream());
byte[] buff = new byte[2048];
int bytesRead;
while (-1 != (bytesRead = bis.read(buff, 0, buff.length))) {
bos.write(buff, 0, bytesRead);
}
}
catch (Exception e) {
//throw e;
}
finally {
if (bis != null) {
try {
bis.close();
}
catch (IOException e) {
}
}
if (bos != null) {
try {
bos.close();
}
catch (IOException e) {
}
}
}
}
protected String getFileName(String fileName){
try {
return new String(fileName.getBytes("utf-8"),"iso8859-1");//防止中文乱码
}
catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
return fileName;
}
}