Question

谁有java的图片上传服务器的例子，发我一份，谢谢！

RT，非常感谢

Answer 1

额 这个 太常用了吧，给你一个自己参考一下 ，最好参考自己写，不然copy没意义 ，如果你是学习的话 ，这个必须会啊

package com.bj95ol.test;
   
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
   
import javax.servlet.ServletInputStream;
import javax.servlet.http.HttpServletRequest;
   
import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;
   
public class SendImgToWeb {
    /**
     * 获得网络图片地址。或者图片地址
     * @param url
     * @return
     */
    public String getContentFromWeb(String url)
    {
        String filecontent="";
        InputStream is=null;
        BASE64Encoder base=new BASE64Encoder();
        if(url.startsWith("http"))
        {
            try {
                HttpURLConnection urlconn=(HttpURLConnection)new URL(url).openConnection();
                is=urlconn.getInputStream();
            } catch (MalformedURLException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
        int n=0;
        byte[] b=null;
        try {
            while((n=is.available())>0)
            {
                n=is.read(b);
                if(n==-1)break;
                filecontent=filecontent+base.encode(b);
                   
            }
            is.close();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return filecontent;
    }
       
    /**
     * 将图片内容用post方式发送到url中
     * @param url
     * @param postcontent
     */
       
    public void sendImgbyPost(String url,String postcontent)
    {
        try {
            HttpURLConnection huc=(HttpURLConnection)new URL(url).openConnection();
            huc.setDoInput(true);
            huc.setDoOutput(true);
            huc.setRequestMethod("POST");
               
            PrintWriter pw=new PrintWriter(new OutputStreamWriter(huc.getOutputStream()));
            pw.print(postcontent);
            pw.close();
               
            BufferedReader br=new BufferedReader(new InputStreamReader(huc.getInputStream()));
            String content="";
            String line=br.readLine();
            while(line!=null)
            {
                content=content+line;
                line=br.readLine();
                   
            }
               
        } catch (MalformedURLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
           
    }
    /**
     * 在服务器端获取发送过来的内容
     * @param request
     * @return
     */
    public String receiveContent(HttpServletRequest request)
    {
        int a = 0;
         byte[] b = new byte[4096];
        String result="";
        try
        {
         ServletInputStream sis=request.getInputStream();
        int line=sis.readLine(b, 0, b.length);
        while(line!=-1)
        {
        result=result+new String(b,0,line);
        line=sis.readLine(b, 0, b.length);
        }
        }
        catch(Exception e)
        {
        e.printStackTrace();
        }
        return  result;
    }
       
    /**
     * 将接受过来的信息生成文件
     * @param request
     * @param filename
     */
    public void createFile(HttpServletRequest request,String filename)
    {
        File file=new File(filename);
        try {
            FileOutputStream fos=new FileOutputStream(file);
            String content=receiveContent(request);
            BASE64Decoder base=new BASE64Decoder();
            byte[] b=base.decodeBuffer(content);
            fos.write(b);
            fos.close();
               
        } catch (FileNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
           
    }
   
}

追问

没做过java，急需，可以发一份完整的么，十分感谢！