springmvc 文件下载 VS resteasy 文件上传下载

import org.springframework.core.io.InputStreamResource;
import org.springframework.http.HttpHeaders;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.UnsupportedEncodingException;

@Controller
@RequestMapping("/evaluate")
public class EvaluateController {
    private static String templateFilePath = "D:\temp\templateFile.xlsx";
    private static String templateFileName = "批量导出模板.xlsx";

    @GetMapping("downloadPathExportTemplate")
    @ResponseBody
    public ResponseEntity<Object> downloadFile() throws FileNotFoundException, UnsupportedEncodingException {

        File file = new File( templateFilePath);
        InputStreamResource resource = new InputStreamResource ( new FileInputStream( file ) );

        HttpHeaders headers = new HttpHeaders();
        headers.add ( "Content-Disposition",String.format("attachment;filename="%s",new String(templateFileName.getBytes("GBK"), "ISO-8859-1")));
        headers.add ( "Cache-Control","no-cache,no-store,must-revalidate" );
        headers.add ( "Pragma","no-cache" );
        headers.add ( "Expires","0" );

        ResponseEntity<Object> responseEntity = ResponseEntity.ok()
                .headers ( headers )
                .contentLength ( file.length ())
                .contentType(MediaType.parseMediaType ( "application/txt" ))
                .body(resource);

        return responseEntity;
    }
}