用Flex/Central/Java上傳文件
in java:
import com.oreilly.servlet.MultipartRequest;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.IOException;
import java.io.PrintWriter;
public class UploadServlet extends HttpServlet {
protected void doGet( HttpServletRequest req, HttpServletResponse res ) throws ServletException, IOException {;}
protected void doPost( HttpServletRequest req, HttpServletResponse res ) throws ServletException, IOException {
MultipartRequest parts = new MultipartRequest( req, "C:\\MyUploadPath" );
PrintWriter out = res.getWriter();
out.print( "SUCCESS" );
out.close();
}
}
in mxml:
< mx:Application initialize="initApp( event )" xmlns:mx="http://www.macromedia.com/2003/mxml">
< mx:Button id="btnUpload" label="Upload..." click="doUpload( event )" />
< mx:Image id="imgUpload" width="100%" height="100%" horizontalAlign="center" />
</mx:Application>
as:
private function doUpload( event:Object ):Void {
var file:FileReference = new FileReference();
// Ask the user to choose a file to upload
if( file.browse( ["JPEG Files", "*.jpg"] ) ) {
file.addListener( this );
file.upload( "http://myurl/servlet/MyUploadServlet" );
}
}
private function onUploadSuccess( ref:FileReference, response:String ):Void {
imgUpload.source = "http://myurl/myfilepath/" + ref.name;
}
private function onUploadFailed( ref:FileReference, error:String, response:String ):Void {
mx.controls.Alert.show( "Upload error: " + error );
}
servlet獲取絕對路徑方法：
ServletConfig config = this.getServletConfig();
ServletContext context = getServletContext();
String path = context.getRealPath("");
posted on 2007-12-03 14:50
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