下载文件时设置文件名的方法

在阿里云云存储OSS中下载文件时设置文件名的办法：

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.net.URLEncoder;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

import com.aliyun.openservices.oss.OSSClient;
import com.aliyun.openservices.oss.model.GeneratePresignedUrlRequest;
import com.aliyun.openservices.oss.model.ObjectMetadata;
import com.aliyun.openservices.oss.model.PutObjectResult;
import com.aliyun.openservices.oss.model.ResponseHeaderOverrides;

public class Sample {

    public static void main(String[] args) throws IOException, ParseException {
        //http://aliyun_portal_storage.oss.aliyuncs.com/oss_api/oss_javahtml/index.html
        //OSS的用户名与密码
        String accessKeyId = "w5c4HJfSXoegx74M";
        String accessKeySecret = "**************";        
        String endpoint = "http://oss-cn-qingdao.aliyuncs.com";
        OSSClient client = new OSSClient(endpoint, accessKeyId, accessKeySecret);
        //http://bbs.aliyun.com/read/149100.html     
        String bucketName="resource-ds";
        
        //判断一下Bucket是不是存在
        /*
        if(!client.doesBucketExist(bucketName))
        {
            // 新建一个Bucket
            //由于Bucket的名字是全局唯一的，所以尽量保证你的 bucketName 不与别人重复。
            client.createBucket(bucketName);   
            client.setBucketAcl(bucketName, CannedAccessControlList.Private);
            System.out.println("创建Bucket成功完成！");            
        }
        */
        //删除Bucket
        //client.deleteBucket(bucketName);
        //System.out.println("删除Bucket成功完成！");
        
        //上传一个文件
        String filePath="F:\Download\20140418120446935.png";
        // 获取指定文件的输入流
        File file = new File(filePath);
        InputStream content = new FileInputStream(file);

        // 创建上传Object的Metadata
        ObjectMetadata meta = new ObjectMetadata();

        // 必须设置ContentLength
        meta.setContentLength(file.length());
        String key="test/"+new File(filePath).getName();
        // 上传Object.
        PutObjectResult result = client.putObject(bucketName, key, content, meta);

        // 打印ETag
        System.out.println("上传文件的MD5值"+result.getETag());
        
        //显示中文名称的
        //Date expires = new Date (new Date().getTime() + 1000000000 * 60*60); // 10 minute to expire
        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
        Date expires = format.parse("2080-01-01 00:00:00");
        GeneratePresignedUrlRequest generatePresignedUrlRequest = new GeneratePresignedUrlRequest(bucketName, key);
        generatePresignedUrlRequest.setExpiration(expires);
        
        ResponseHeaderOverrides responseHeaders=new ResponseHeaderOverrides();
        //不同浏览器上中文文件名的下载乱码问题
        //http://java-xp.iteye.com/blog/903048
        String filename="黄海测试.png";
        
        //For IE
        String new_filename = URLEncoder.encode(filename, "UTF8");  
        responseHeaders.setContentDisposition("attachment;filename="+new_filename);
        generatePresignedUrlRequest.setResponseHeaders(responseHeaders);
        URL url = client.generatePresignedUrl(generatePresignedUrlRequest);
        System.out.println(url.toString().Replace("+","%2B"));
        
        //For FireFox And Chrome
        new_filename = filename;  
        responseHeaders.setContentDisposition("attachment;filename="+new_filename);
        generatePresignedUrlRequest.setResponseHeaders(responseHeaders);
        url = client.generatePresignedUrl(generatePresignedUrlRequest);
        System.out.println(url.toString().Replace("+","%2B"));                
        
        /*
        // 获取指定bucket下的所有Object信息
        ObjectListing listing = client.listObjects(bucketName);

        // 遍历所有Object
        for (OSSObjectSummary objectSummary : listing.getObjectSummaries()) {
            System.out.println(objectSummary.getKey());
        }
        
        //下载
        OSSObject mydown=client.getObject(bucketName, key);
        InputStream  is   =mydown.getObjectContent();
     
        // 1K的数据缓冲  
        byte[] bs = new byte[1024];  
        // 读取到的数据长度  
        int len;  
        // 输出的文件流  
       String savePath="c:\1.doc";
         
       OutputStream os = new FileOutputStream(savePath);  
        // 开始读取  
        while ((len =  is .read(bs)) != -1) {  
          os.write(bs, 0, len);  
        }  
        // 完毕，关闭所有链接  
        os.close();  
        is .close();  
        */
    }
}

 

在nginx中配置中文文件名称，在各种浏览器和迅雷中都能正确下载中文文件名的办法：




#user  nobody;
worker_processes  4;
worker_rlimit_nofile 100000;




#error_log logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;




#pid logs/nginx.pid;





events {
    use epoll;
    multi_accept on;
    worker_connections  2048;
}





http {
    include       mime.types;
    default_type  application/octet-stream;




 #log_format main '$remote_addr - $remote_user [$time_local] "$request" '
    #                  '$status $body_bytes_sent "$http_referer" '
    #                  '"$http_user_agent" "$http_x_forwarded_for"';




#access_log logs/access.log main;




 sendfile on;
    tcp_nopush     on;
    tcp_nodelay on;
    client_header_buffer_size 128k;
    client_body_buffer_size  512k;
    large_client_header_buffers 4 128k;




 #keepalive_timeout 0;
    keepalive_timeout  65;




 gzip on;
    gzip_min_length 1k;
    gzip_buffers 16 64k;
    gzip_http_version 1.1;
    gzip_comp_level 6;
    gzip_types text/plain application/x-javascript text/css application/xml;
    gzip_vary on;




 upstream backend {
        server 127.0.0.1:8080;
    }




 #加载lua的初始化文件
    init_by_lua_file /usr/local/lua_script/init.lua;




 server {
        listen       80;
        server_name  localhost;




charset utf-8;




#access_log logs/host.access.log main;




 location / {
            #root   html;
            #index  index.html index.htm;
	    root   /usr/local/tomcat7/webapps/;
	    proxy_pass http://backend;
        }
	
	location /down/ {
          if ($arg_flag = "download")
                {
		  #参考：http://ju.outofmemory.cn/entry/71360




 add_header Content-Encoding "utf-8";
                  add_header Content-Type "x-msdownload";
                  
                  add_header Cache-Control "private";
                  add_header Accept-Rangles "bytes";




 add_header Content-Disposition "attachment;filename=$arg_n;filename*=UTF-8''$arg_n;";
                  add_header Pragma  "no-cache";
                  add_header Expires "0";
		}
	        alias  /usr/local/openresty/nginx/html/down/;
        }




 #配置Nginx动静分离，定义的静态页面直接从Nginx发布目录读取。
        location  ~* ^/(?![down]).(html|htm|gif|jpg|jpeg|bmp|png|ico|txt|js|css)
        {
            root /usr/local/tomcat7/webapps;
            #expires定义用户浏览器缓存的时间为3天，如果静态页面不常更新，可以设置更长，这样可以节省带宽和缓解服务器的压力
            expires      3d;
        }




 location /dsideal_yy/login/doLogin {
	    content_by_lua_file /usr/local/lua_script/login.lua;
	}




 location /dsideal_yy/resource/getStageSubject {
	    content_by_lua_file /usr/local/lua_script/xd_subject.lua;
	}




 location /dsideal_yy/resource/getAllScheme {
            content_by_lua_file /usr/local/lua_script/version.lua;
	}




 location /dsideal_yy/resource/getResourceList {
	    content_by_lua_file /usr/local/lua_script/resource_list.lua;
	}




 location /dsideal_yy/resource/getResourceMyList {
            content_by_lua_file /usr/local/lua_script/resource_my_list.lua;
        }
	
	location /utf_code {
	    content_by_lua_file /usr/local/lua_script/utf_code.lua;
	}




 location /dsideal_yy/resource/setDownCount {
	    content_by_lua_file /usr/local/lua_script/down_count.lua;
	}




 location /dsideal_yy/resource/getStructureInfo {
            content_by_lua_file /usr/local/lua_script/structure.lua;
        }




 location /dsideal_yy/resource/getPersonXdkm {
	    content_by_lua_file /usr/local/lua_script/person_xdkm_get.lua;
	}




 location /dsideal_yy/resource/savePerosnXdkm {
	    content_by_lua_file /usr/local/lua_script/person_xdkm_set.lua;
	}




 location /dsideal_yy/resource/getMediaTypeByXdkm {
            content_by_lua_file /usr/local/lua_script/media_type.lua;
        }




#error_page 404 /404.html;




 # redirect server error pages to the static page /50x.html
        #
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }




 # proxy the PHP scripts to Apache listening on 127.0.0.1:80
        #
        #location ~ .php$ {
        #    proxy_pass   http://127.0.0.1;
        #}




 # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
        #
        #location ~ .php$ {
        #    root           html;
        #    fastcgi_pass   127.0.0.1:9000;
        #    fastcgi_index  index.php;
        #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
        #    include        fastcgi_params;
        #}




 # deny access to .htaccess files, if Apache's document root
        # concurs with nginx's one
        #
        #location ~ /.ht {
        #    deny  all;
        #}
    }





    # another virtual host using mix of IP-, name-, and port-based configuration
    #
    #server {
    #    listen       8000;
    #    listen       somename:8080;
    #    server_name  somename  alias  another.alias;




 # location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}





    # HTTPS server
    #
    #server {
    #    listen       443 ssl;
    #    server_name  localhost;




 # ssl_certificate cert.pem;
    #    ssl_certificate_key  cert.key;




 # ssl_session_cache shared:SSL:1m;
    #    ssl_session_timeout  5m;




 # ssl_ciphers HIGH:!aNULL:!MD5;
    #    ssl_prefer_server_ciphers  on;




 # location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}




}


 






        

	      

	    

	  

	  

	    
      
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          原文地址：https://www.cnblogs.com/littlehb/p/3727973.html