Hi All,
was busy some what from last couple of months. Finally started on liferay 6.0 from last couple of week.Today want to share simple program which can be used to read a text file and read json from it using apache commons library. Using apache commons library we can reduce our code to large extent. Here is the program.
import java.io.IOException;
import java.io.InputStream;
import net.sf.json.JSONArray;
import net.sf.json.JSONObject;
import net.sf.json.JSONSerializer;
import org.apache.commons.io.IOUtils;
public class ClassloaderTest {
public static void main(String [] args) {
ClassLoader cl = ClassloaderTest.class.getClassLoader();
InputStream is = cl.getResourceAsStream("json.txt");
try {
String s = IOUtils.toString( is );
JSONObject json = (JSONObject) JSONSerializer.toJSON(s);
JSONObject searchresults = json.getJSONObject("searchresults");
System.out.println("ssssssss" + searchresults.optString("count", ""));
JSONArray jarray = searchresults.getJSONArray("URI");
for(int i=0 ; i < jarray.size(); i++) {
System.out.println("jarray [" + i + "] --------" + jarray.getString(i));
}
} catch(IOException e) {
e.printStackTrace();
}
}
}
and content of json.txt is below
{
"searchresults": {
"URI": ["qa1", "qa2", "qa3", "qa4", "qa5"],
"count": "5"
}
}
jason.txt you can keep in the same package where your class is.
Hope this post helps others.
Kamal
4 comments:
Hi,
I have tried reding json object i got NullPointerException,
Can you please help me..
Hi,
I tried reading json object,
I got NullPointerException.
Can you please help to me.
@manasa: This exception you are getting because you are not able to read file.
json is a very interesting language to be used. very good tutorial and can hopefully help me in building json in the application that I created for this lecture. thank you
Post a Comment