Solved

Wget and useragent options in java

Posted on 2011-09-08
4
375 Views
Last Modified: 2013-11-23
I want convert the below linux command into java a java program. How can i set useragent option in java??

>>>> wget www.somesite.com -U "option1 option2"

Note : here -U is useragent options



0
Comment
Question by:manugeek
  • 2
4 Comments
 
LVL 86

Assisted Solution

by:CEHJ
CEHJ earned 50 total points
ID: 36501539
Set http.agent System property. You can also set it as a header in URLConnection, but only the former is necessary
0
 
LVL 47

Accepted Solution

by:
for_yan earned 200 total points
ID: 36503892


This gives you some variants of code for wget-like Java programs:
http://stackoverflow.com/questions/238547/how-do-you-programmatically-download-a-webpage-in-java
and this is the recommendation for user agents from the last answer:

URL url = new URL(urlStr);
HttpURLConnection conn = (HttpURLConnection) url.openConnection(); // Cast shouldn't fail
HttpURLConnection.setFollowRedirects(true);
// allow both GZip and Deflate (ZLib) encodings
conn.setRequestProperty("Accept-Encoding", "gzip, deflate");
String encoding = conn.getContentEncoding();
InputStream inStr = null;

// create the appropriate stream wrapper based on
// the encoding type
if (encoding != null && encoding.equalsIgnoreCase("gzip")) {
    inStr = new GZIPInputStream(conn.getInputStream());
} else if (encoding != null && encoding.equalsIgnoreCase("deflate")) {
    inStr = new InflaterInputStream(conn.getInputStream(),
      new Inflater(true));
} else {
    inStr = conn.getInputStream();
}

Open in new window


User- agent:

conn.setRequestProperty ( "User-agent", "my agent name");

0
 
LVL 86

Expert Comment

by:CEHJ
ID: 36509531
Better to use the first solution i mentioned: you can pass it to the runtime with the ability to change it at will without recompilation
0
 

Author Comment

by:manugeek
ID: 36509728
Thanks CEHJ, it was helpful. I am rookie to java but will appreciate any working example or a link. Sorry i will not be able to give any more points has this question is marked closed.
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Displaying an arrayList in a listView using the default adapter is rarely the best solution. To get full control of your display data, and to be able to refresh it after editing, requires the use of a custom adapter.
If you’re thinking to yourself “That description sounds a lot like two people doing the work that one could accomplish,” you’re not alone.
Viewers will learn about if statements in Java and their use The if statement: The condition required to create an if statement: Variations of if statements: An example using if statements:
This tutorial covers a step-by-step guide to install VisualVM launcher in eclipse.

914 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

22 Experts available now in Live!

Get 1:1 Help Now