【Spring boot】文件上传和下载Controller代码

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      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