I am having a problem in making a json in java. below is the JSON which I have to create through java code.
{"status":"0",
"Response":{
"abc":[
"def":[
"fgh":[
{
"abc":"abc",
"def":"abc",
"ghi":"abc",
},
{
"abc":"abc",
"def":"abc",
"ghi":"abc",
},
{
"abc":"abc",
"def":"abc",
"ghi":"abc",
}
],
"ghi":[
{
"abc":"abc",
"def":"abc",
"ghi":"abc",
},
{
"abc":"abc",
"def":"abc",
"ghi":"abc",
},
{
"abc":"abc",
"def":"abc",
"ghi":"abc",
}
]
]
]
]
}
}
and here is the java code.
JSONObject result = new JSONObject();
JSONObject abcObject = new JSONObject();
JSONArray resultArray = new JSONArray();
JSONArray fghArray = new JSONArray();
JSONArray defArray = new JSONArray();
JSONArray abcArray = new JSONArray();
abcObject.put("abc");
abcObject.put("def");
abcObject.put("ghi");
fghArray.add(abcObject);
defArray.add(fghArray);
abcArray.add(defArray);
result.put("status", 0);
result.put("Response",abcArray);
return resultJson.toString();
The Problem:
when i send back the json to a jsp. the output is not showing up.
success:function(data) {
alert(data);
var json = $.toJSON(data);
alert(json);
},
alert(data) is alerting an object and 2nd alert alert(json) is not showing anything.
I am having a problem in making a json in java. below is the JSON which I have to create through java code.
{"status":"0",
"Response":{
"abc":[
"def":[
"fgh":[
{
"abc":"abc",
"def":"abc",
"ghi":"abc",
},
{
"abc":"abc",
"def":"abc",
"ghi":"abc",
},
{
"abc":"abc",
"def":"abc",
"ghi":"abc",
}
],
"ghi":[
{
"abc":"abc",
"def":"abc",
"ghi":"abc",
},
{
"abc":"abc",
"def":"abc",
"ghi":"abc",
},
{
"abc":"abc",
"def":"abc",
"ghi":"abc",
}
]
]
]
]
}
}
and here is the java code.
JSONObject result = new JSONObject();
JSONObject abcObject = new JSONObject();
JSONArray resultArray = new JSONArray();
JSONArray fghArray = new JSONArray();
JSONArray defArray = new JSONArray();
JSONArray abcArray = new JSONArray();
abcObject.put("abc");
abcObject.put("def");
abcObject.put("ghi");
fghArray.add(abcObject);
defArray.add(fghArray);
abcArray.add(defArray);
result.put("status", 0);
result.put("Response",abcArray);
return resultJson.toString();
The Problem:
when i send back the json to a jsp. the output is not showing up.
success:function(data) {
alert(data);
var json = $.toJSON(data);
alert(json);
},
alert(data) is alerting an object and 2nd alert alert(json) is not showing anything.
Share Improve this question edited May 14, 2012 at 6:51 JN_newbie asked May 14, 2012 at 5:57 JN_newbieJN_newbie 6,11216 gold badges69 silver badges105 bronze badges 5- 1 And what is the problem? Be more specific please. – Aleksandr Kravets Commented May 14, 2012 at 6:02
-
1
That's not valid JSON. (Your innermost "objects" mix the curly brackets of object literal syntax with the ma-separated value syntax of array literals. Some of the other properties do the opposite, i.e., mix the square brackets of array literal syntax with the
property:valuesyntax of object literals.) – nnnnnn Commented May 14, 2012 at 6:08 - Aleksandr I have edit the question. – JN_newbie Commented May 14, 2012 at 6:16
- The edit didn't pletely fix the invalid JSON issue: you've fixed the innermost objects, but not the arrays (the ones beginning on the third and fourth lines of the would-be JSON). – nnnnnn Commented May 14, 2012 at 6:38
-
It's still wrong. As per my previous ment, you can't have
name:valuepairs inside square brackets, so the arrays beginning on the third and fourth lines of your would-be JSON are invalid. – nnnnnn Commented May 14, 2012 at 7:05
2 Answers
Reset to default 2Your JSON object has a wrong syntax: An object must contain a list of field/value pairs and is enclosed with braces {}, an array is a list of values enclosed with angle brackets [].
The Example json is Wrong Please Update it
A JSON object should be like
{
"key1":"value",
"key2":"value2"
}
A JSON Array
[
{
"key1":"value",
"key2":"value2"
},
{
"key1":"value",
"key2":"value2"
}
]
you cannot have
//Wrong Array format (Array should be list of Objects)
[
"key1": "value",
"key2": "value2"
]
and when you nest them they should be like
{"key1": "value1",
"key2": [
{
"key1": "value",
"key2": "value2"
},
{
"key1": "value",
"key2": "value2"
}
],
"key3": [
{
"key1": "value",
"key2": "value2"
},
{
"key1": "value",
"key2": "value2"
}
]
}
Since you where using a pair in your above example i have changed the above JSON array to a JSON Object the new sample JSON is
{
"status": "0",
"Response": {
"abc": {
"def": {
"fgh": [
{
"abc": "abc",
"def": "abc",
"ghi": "abc"
},
{
"abc": "abc",
"def": "abc",
"ghi": "abc"
},
{
"abc": "abc",
"def": "abc",
"ghi": "abc"
}
],
"ghi": [
{
"abc": "abc",
"def": "abc",
"ghi": "abc"
},
{
"abc": "abc",
"def": "abc",
"ghi": "abc"
},
{
"abc": "abc",
"def": "abc",
"ghi": "abc"
}
]
}
}
}
}
And the Java Code to Create the Above JSON Object
import org.codehaus.jettison.json.JSONArray;
import org.codehaus.jettison.json.JSONException;
import org.codehaus.jettison.json.JSONObject;
public static String createJson() {
JSONObject result = new JSONObject();
JSONObject response = new JSONObject();
JSONObject abc = new JSONObject();
JSONObject def = new JSONObject();
JSONArray fgh = new JSONArray();
JSONArray ghi = new JSONArray();
JSONObject sampleInnerElement = new JSONObject();
try {
sampleInnerElement.put("abc","abc");
sampleInnerElement.put("def","abc");
sampleInnerElement.put("ghi","abc");
//populating the fgh Array
fgh.put(sampleInnerElement);
fgh.put(sampleInnerElement);
fgh.put(sampleInnerElement);
//populating the Ghi Array
ghi.put(sampleInnerElement);
ghi.put(sampleInnerElement);
ghi.put(sampleInnerElement);
def.put("fgh",fgh);
def.put("ghi",ghi);
abc.put("def",def);
response.put("abc",abc);
result.put("status","0");
result.put("response",response);
} catch (JSONException e) {
e.printStackTrace();
}
return result.toString();
}