【Spring boot】文件上传和下载Controller代码

下载

      import org.springframework.stereotype.Controller;
      import org.springframework.web.bind.annotation.RequestMapping;
      import javax.servlet.ServletOutputStream;
      import javax.servlet.http.HttpServletResponse;
      import java.io.*;
      import java.net.URLEncoder;
      @Controller
      @RequestMapping("/down")
      public class DownLoadController {
         @RequestMapping("/load")
         public void download(HttpServletResponse response) throws UnsupportedEncodingException {
             String s = URLEncoder.encode("中文.zip", "utf-8");
      // 设置content-type：二进制
              response.setHeader("Content-Type", "application/octet-stream");
      // response.setContentType("application/octet-stream");
              response.setHeader("Content-Disposition","attachment;filename="+s);
             try  {
                 FileInputStream inputStream = new FileInputStream("d:/his02-0.3.war");
                 BufferedInputStream bufferinput = new BufferedInputStream(inputStream);
                 ServletOutputStream outputStream = response.getOutputStream();
                 BufferedOutputStream bufferedOutput = new BufferedOutputStream(outputStream);
                 byte[] bytes = new byte[1024];
                 int len=bufferinput.read(bytes);
                 while (len!=-1){
                      bufferedOutput.write(bytes,0,len);
                      bufferedOutput.flush();
                      len=bufferinput.read(bytes);
                  }
                  bufferinput.close();
                  bufferedOutput.close();
              } catch (IOException e) {
                  e.printStackTrace();
              }
          }
      }
  
 

文章来源: blog.csdn.net，作者：一条coding，版权归原作者所有，如需转载，请联系作者。

原文链接：blog.csdn.net/skylibiao/article/details/99824799