文件下载 FileInputStream不能读取中文路径的问题

àì夳堔傛蜴生んèń 2022-08-05 08:56 237阅读 0赞

昨天在做文件下载的时候在java文件中对下载流进行处理，但是当路径中出现中文路径是，直接抛出异常，下面是java文件下载代码：

import java.io.File;
    import java.io.FileInputStream;
    import java.io.OutputStream;
    import java.net.URLEncoder;
    
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    
    public class DownloadUtil {
    	public static void down(HttpServletRequest request, HttpServletResponse response
    			,String filename,String filepath) throws Exception{
    	 	
    		//response.setContentType("application/x-msdownload");
    		response.setContentType(" application/x-xls;charset=uft-8");
    		response.setContentType("application/octet-stream");
    	 	response.setHeader("Content-disposition","attachment; filename=" + new String(filename.getBytes("utf-8"),"iso8859-1")); 
    		
    	 	java.io.FileInputStream in = null;     
    	 	java.io.BufferedInputStream binpu = null;  
    	 	java.io.BufferedOutputStream bout = null; 
    	 	   
    	 	OutputStream output = null;
    		output = response.getOutputStream();
    		if(filepath.startsWith("ftp://"))//如果是ftp,则用FTP下载
    		{
    			FTPHelper ftp = new FTPHelper();
    			String serverFile = ftp.parseFTPAddress(filepath);
    	       	ftp.get(serverFile, output);
    	        output.flush();	
    	        
    		}else{
    			FileInputStream fis = null;
    			try{
    			    //如果是中文路径，在此处抛出异常
    			    in = new java.io.FileInputStream(filepath);     
    			    binpu = new java.io.BufferedInputStream(in);  
    			    bout = new java.io.BufferedOutputStream(response.getOutputStream());  
    			    byte[] b = new byte[1024];   
    			    
    				int i = 0;
    			    while((i = binpu.read(b,0,b.length)) > 0){     
    			        bout.write(b, 0, i);     
    			    }         
    			    bout.flush();    
    			    response.flushBuffer();  
    			}catch(Exception e){
    				e.printStackTrace();
    		 	}
    			finally{
    				if(fis != null){
    					fis.close();
    		 	  		fis = null;
    		 	  	}			
    		 	}
    		}
    		if(output != null){
    			output.close();
    			output = null;
    		}
    	}
    }

最后找了半天发现并不是FileInputStream本身的问题，在server配置时没有将编码格式转成utf-8  
首先在eclipse中找到配置的sever，在server中找到，server.xml文件，在xml文件中把文件修改成如下这句话，就欧克了

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