JSON is not working - json

Question

I have one dropdown in the table.Once I make Onchange event I got all the table value and I want to convert it into json to send it to the servlet.
var item = [];
function dropDownOnChange(e) {
var selectedValue = e.options[e.selectedIndex].value;
alert("selectedValue:" + selectedValue);
var currentRow= $(e).closest("tr");
var AccountNo = $("td:eq(0)",$(currentRow)).text();
alert("accountno"+AccountNo);
var AccountType =$("td:eq(1)",$(currentRow)).text();
alert("acctyp"+AccountType);
var AcctypID = $("td:eq(3)",$(currentRow)).text();
alert("accID"+AcctypID);
Here I tried to convert it to JSON. I want to send this JSON value on my final save.
var objddlvalue = {};
objddlvalue["AccountNo"] = AccountNo;
objddlvalue["AccountType"] = AccountType;
objddlvalue["Account Type_Val"] = AcctypID;
objddlvalue["AccountStatus"] = selectedValue;
item.push(objddlvalue);
console.log(item);
jsonObj1 = JSON.stringify(item);
console.log(jsonObj1);
I am getting my JSON value like:
[{
"AccountNo": "89348734",
"AccountType": "Credit",
"Account Type_Val": "21",
"AccountStatus": "Invalid"
}]
When I check on online JSON checker it says the format is correct. But when I access it form servlet I can not parse it to jarray.
JSONObject jsonObj1 = (JSONObject)JSONValue.parse(request.getParameter("jsondata1"));
System.out.println("Json Object........"+jsonObj1.toJSONString());
JSONArray arr = (JSONArray) jsonObj.get(jsonObj1);
How to loop through my JSON object?

Answer 1

public static void main(String[] args) {
String jsonExternal = "[" +
"{"+
"\"AccountNo\": \"89348734\","+
"\"AccountType\": \"Credit\","+
"\"Account Type_Val\": \"21\","+
"\"AccountStatus\": \"Invalid\""+
"},"+
"{"+
"\"AccountNo\": \"89348734_test\","+
"\"AccountType\": \"Credit_test\","+
"\"Account Type_Val\": \"21_test\","+
"\"AccountStatus\": \"Invalid_test\""+
"}]";
JSONArray arr = (JSONArray)JSONValue.parse(jsonExternal);
for(Object obj : arr) {
JSONObject jsonObj = (JSONObject)obj;
Collection keySet = jsonObj.keySet();
Collection entrySet = jsonObj.entrySet();
Collection values = jsonObj.values();
for(Object o : keySet) {
System.out.println(o.toString());
}
for(Object o : entrySet) {
System.out.println(o.toString());
}
for(Object o : values) {
System.out.println(o.toString());
}
System.out.println(jsonObj.get("AccountNo"));
System.out.println(jsonObj.get("AccountType"));
System.out.println(jsonObj.get("Account Type_Val"));
System.out.println(jsonObj.get("AccountStatus"));
}
}