-1
如何计算JSON对象中有多少个对象 我的代码是计数JSON节点
String json = IOUtils.toString(is);
JSONObject jo = new JSONObject(json);
这里“JO”，与在该对象的jsonobeject某些数据有没有数据：
{
"cargoDetails":[{
"noOfPackages":"2",
"packType":"AUG",
"uom":"LB",
"packLength":"10",
"actualWt":"5",
"packHeight":"2",
"packWidth":"4",
"packDescription":"description",
"currId":"1",
"shipmentMode":"1"},
{"noOfPackages":"2",
"packType":"BAG",
"uom":"KG",
"packLength":"10",
"actualWt":"5",
"packHeight":"2",
"packWidth":"4",
"packDescription":"description",
"currId":"1",
"shipmentMode":"1"}],
"type":"air",
"userId":"KOTESWAR",
"customerId":"CUST00168",
"contractId":"CONTRACT0000576",
"originTerminalId":"FINBOM",
"destinationTerminalId":"FINDEL",
"ShipperId":"CUST00003",
"serviceLevelId":"STD",
"paymentTerms":"Prepaid",
"terminalId":"FINBOM",
"originDepartment":"AE",
"destinationDepartment":"AI",
"departurePort":"INBOM",
"destinationPort":"BOM",
"totalNoPcs":"4",
"totalActualWt":"5",
"totalVol":"10"
}
k与在我可以发送cargodetails对象2剩余的是预订详细信息 所以我的问题是如何找到有多少对象在jO。 ，因为只有我可以迭代循环。