The resource file for the Java download URL

Download the image file for "Http://www.baidu.com/img/bd_logo1.png" by code

package guwen;import java.io.bytearrayoutputstream;import java.io.file;import  java.io.fileoutputstream;import java.io.ioexception;import java.io.inputstream;import  java.net.httpurlconnection;import java.net.url;public class downurl {     public static void main (String[] args)  throws IOException {         String link =  "Http://www.baidu.com/img/bd_logo1.png" ;         // new a URL object          url url = new url (link);        //  Open link         HttpURLConnection conn =  (HttpURLConnection)  url.openconnection ();        //  Set request mode is "GET"          conn.setrEquestmethod ("GET");        //  timeout response time is 5 seconds          conn.setconnecttimeout (5 * 1000);         //can learn the types of resources through  contentType          String  Contenttype = conn.getcontenttype ();         System.out.println ("contenttype: " +contenttype);        //  Get file data from an input stream         InputStream inStream =  Conn.getinputstream ();        //  Gets the binary data of the resource, obtains the data in binary package, has the universality         ByteArrayOutputStream outStream = new  Bytearrayoutputstream ();        //  Create a buffer string          byte[] buffer = new byte[1024];        //  the string length of each read, if 1, all reads are complete          int len = 0;         //  use an input stream to read the data out of the buffer         while  (len  = instream.read (buffer))  != -1)  {             //  writes the data to buffer with the output stream, and the middle parameter represents where to start reading, and Len represents the length of the read              outstream.write (Buffer, 0, len);         }        //  Close input Stream          instream.close ();        //  writes the data in the OutStream to memory         byte[] data = outstream.tobytearray ();          // new a file object is used to save files, or incoming databases, etc.         String  savepath =  "D://file";         file file = new  file (Savepath);        string parentstr =  File.getparent ();        file parentflie = new  File (PARENTSTR);        if  (!parentflie.exists ())  {             parentflie.mkdirs ();         }        //  Create an output stream          fileoutputstream fileoutstream = new fileoutputstream (file);         //  Writing Data          Fileoutstream.write (data);         //  closing the output stream          Fileoutstream.close ();             }}

After running. The image will be downloaded to the computer's C drive file.

The resource file for the Java download URL