WikiPage Usage modified by Rajesh Putta

Rajesh Putta — Sun, 03 Mar 2013 08:33:18 -0000

This page talks about quick-json parser usage

= quick-json Usage =

quick-json supports parsing of combination of different formats together

E.g.

 samplejson = {
   "key1": value1,
   "key_2": "value2",
   key3: value3,
   key4:234234234,
   key5:234234.233
}

Value can be looked up by just parsing the above JSON string using parsing API as follows,

 JsonParserFactory factory=JsonParserFactory.getInstance();
 JsonParser parser=factory.newJsonParser();
 Map jsonData=parser.parse(inputJsonString);

 //lookup the key 'key_2' under Json Block 'samplejson'
 String value=jsonData.get("samplejson").get("key_2");

{
"employees": [
{ "firstName":"Rajesh" , "lastName":"Putta" }, 
{ "firstName":"Rajesh" , "lastName":"P" }, 
{ "firstName":"first name" , "lastName":"last name" }
]
}

Value can be looked up by just parsing the above JSON string using parsing API as follows,

 JsonParserFactory factory=JsonParserFactory.getInstance();
 JsonParser parser=factory.newJsonParser();
 Map jsonData=parser.parse(inputJsonString);

Map rootJson=jsonData.get("root");
 List al=rootJson.get("employees");
 String fName=((Map)al.get(0)).get("firstName");
 String lName=((Map)al.get(0)).get("lastName");

E.g.

{
    "firstName": "John",
    "lastName": "Smith",
    "age": 25,
    "address": {
        "streetAddress": "21 2nd Street",
        "city": "New York",
        "state": "NY",
        "postalCode": 10021
    },
    "phoneNumber": [
        {
            "type": "home",
            "number": "212 555-1234"
        },
        {
            "type": "fax",
            "number": "646 555-4567"
        }
    ]
}

postalCode under address sub-json can be looked up by implementing as follows,

 JsonParserFactory factory=JsonParserFactory.getInstance();
 JsonParser parser=factory.newJsonParser();
 Map jsonData=parser.parse(inputJsonString);

 Map rootMap=jsonData.get("root");
 Map addressMap=rootMap.get("address");
 String pcode=addressMap.get("postalCode");

WikiPage Home modified by Rajesh Putta

Rajesh Putta — Sun, 03 Mar 2013 08:26:08 -0000

Welcome to your wiki!

This is the default page, edit it as you see fit. To add a new page simply reference it within brackets, e.g.: [SamplePage].

The wiki uses Markdown syntax.

Rajesh Putta

Recent changes to wiki

WikiPage Usage modified by Rajesh Putta

This page talks about quick-json parser usage

WikiPage Home modified by Rajesh Putta