www.pudn.com > htmlsaver.rar > SaveURLToFile.java

import java.net.*; 
import java.io.*; 
 
public class SaveURLToFile 
{ 
  protected Project prj; 
  protected URL url; 
  protected File file; 
   
  protected boolean isFinish; 
   
  public SaveURLToFile(Project prj, URLName u) 
  { 
    this.prj = prj; 
    isFinish = false; 
    try { 
      url = new URL(u.url); 
    } 
    catch (MalformedURLException e) { 
      return; 
    } 
     
    file = new File(new File(prj.mainDir), u.name); 
    if (file.exists()) 
      file.delete(); 
    try { 
      file.createNewFile(); 
    } 
    catch (IOException e) { 
      return; 
    } 
     
    URLConnection uc; 
    try { 
      uc = url.openConnection(); 
    } 
    catch (IOException e) { 
      return; 
    } 
     
    String type = uc.getContentType(); 
    if (type.startsWith("text/html")) 
      isFinish = saveHTMLFile(); 
    else 
      isFinish = saveBinaryFile(); 
  } 
   
  public boolean isFinished() 
  { 
    return isFinish; 
  } 
   
  protected boolean saveBinaryFile() 
  { 
    try { 
      InputStream in = url.openStream(); 
      OutputStream out = new FileOutputStream(file); 
 
      byte[] s = new byte[1024]; 
      while (true) 
      { 
        int c = in.read(s, 0, 1024); 
        if (c == -1) 
          break; 
         
        out.write(s, 0, c); 
        out.flush(); 
      } 
       
      in.close(); 
      out.close(); 
    } 
    catch (IOException e) { 
      return false; 
    } 
     
    return true; 
  } 
   
  protected boolean saveHTMLFile() 
  { 
    try { 
      InputStreamReader in = new InputStreamReader(url.openStream()); 
      OutputStreamWriter out = new OutputStreamWriter( 
        new FileOutputStream(file)); 
       
      FileURLChange change; 
      try { 
        change = new FileURLChange(url.toString()); 
      } 
      catch (UnknowFileURL e) { 
        return false; 
      } 
      DealHTMLTagSaveURL save = new DealHTMLTagSaveURL(prj, change); 
      if (!DealHTMLStream.dealHTMLStream(in, out, save)) 
        return false; 
    } 
    catch (IOException e) { 
      return false; 
    } 
     
    return true; 
  } 
   
  public static void main(String[] args) 
  { 
    Project project; 
    try { 
      project = new Project("f:\\other\\BTB.prj"); 
    } 
    catch (Exception e) { 
      return; 
    } 
    URLName name = (URLName)project.names.elements().nextElement(); 
    new SaveURLToFile(project, name); 
  } 
}