java实现从网上下载图片到本地的方法


本文实例讲述了java实现从网上下载图片到本地的方法。分享给大家供大家参考。具体如下:

import java.io.*;
import java.net.MalformedURLException;
import java.net.URL;
public static void writeFile(String strUrl,String fileName){
  URL url = null;
  try {
    url = new URL(strUrl);
  } catch (MalformedURLException e2) {
    e2.printStackTrace();
  }
  InputStream is = null;
  try {
    is = url.openStream();
  } catch (IOException e1) {
    e1.printStackTrace();
  }
  OutputStream os = null;
  File f = new File("d:\\webimg\\");
  f.mkdirs();
  try{
    os = new FileOutputStream("d:\\webimg\\"+fileName);
    int bytesRead = 0;
    byte[] buffer = new byte[8192];
    while((bytesRead = is.read(buffer,0,8192))!=-1){
      os.write(buffer,0,bytesRead);
    }
  }catch(FileNotFoundException e){
  } catch (IOException e) {
    e.printStackTrace();
  }
}

希望本文所述对大家的java程序设计有所帮助。


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