Using wget in java application

Question

Hello.
I want use 'wget' command from my Java application
for 'wget' i created command as String type.
Here is it
String url_str=wget --post-data "year=2009&month=08&day=01&time=0&profile=1&start=0&stop=1000&step=50&par=&format=0&vars=01&vars=02" http://testsite.com/cgi/script.cgi -O /home/user/test_wget.txt
then i use it in exec method
try{
Runtime rt = Runtime.getRuntime();
Process p = rt.exec(url_str);
p.waitFor();
BufferedReader r = new BufferedReader(
new InputStreamReader(p.getErrorStream()));
String s;
while ((s = r.readLine())!=null) {
System.out.println( s );
r.close();
catch (IOException e){
     // TODO Auto-generated catch block
     e.printStackTrace();
catch ( InterruptedException e ) {
     e.printStackTrace();
after running the file test_wget.txt hold
Error
Wrong key: not alpha/numerical characters
however, if i use my url_str from Linux command line
test_wget.txt is hold usefull data.
So, how working correct with wget from Java application?
Thanks for any replys

Answer 1

So, how working correct with wget from Java application?You don't use it; you use Apache HttpClient in stead which can do exactly the same and more without you needing to call platform specific command line tools.
In any case if you must go down this path, read this article front to back:
http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html