Processing JSON Data - Java - page 783

Parsing and Writing JSON with org.json

Problem

You want to read/write JSON using a mid-sized, widely used JSON API.

Solution

Consider using the org.json API; it's widely used and is also used in Android.

Discussion

The org.json package is not as advanced as Jackson, nor as high-level; it makes you think
and work in terms of the underlying JSON abstractions instead of at the Java code level. For
example, here is the org.json version of reading the software description from the opening of
this chapter:

public public class class SoftwareParseOrgJson SoftwareParseOrgJson {

final final static static String FILE_NAME = "/json/softwareinfo.json" ;

public public static static void void main ( String [] args ) throws throws Exception {

InputStream jsonInput =
SoftwareParseOrgJson . class . getResourceAsStream ( FILE_NAME );
iif ( jsonInput == null null ) {

throw throw new new NullPointerException ( "can't find" + FILE_NAME );

}
JSONObject obj = new new JSONTokener ( jsonInput ));

System . out . println ( "Software Name: " + obj . getString ( "name" ));
System . out . println ( "Version: " + obj . getString ( "version" ));
System . out . println ( "Description: " + obj . getString ( "description" ));
System . out . println ( "Class: " + obj . getString ( "className" ));
JSONArray contribs = obj . getJSONArray ( "contributors" );
for

new JSONObject ( new

for ( int int i = 0 ; i < contribs . length (); i ++) {

System . out . println ( "Contributor Name: " + contribs . get ( i ));

}

}

}