我正在尝试解析以下Json数组。我已经完成了以下编码，但由于我遇到异常，我无法正确解析它。请检查我的密码并告诉我哪里出错了。
String result = null;
InputStream is = null;
try{
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("url");
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
is = entity.getContent();
Log.e("log_tag", "connection success "+"nameValuePairs");
}
catch(Exception e)
{
Log.e("log_tag", "Error in http connection "+e.toString());
}
try
{
BufferedReader reader = new BufferedReader(new InputStreamReader(is,HTTP.UTF_8),8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null)
{
sb.append(line + "\n");
}
is.close();
result=sb.toString();
Log.i("log_tag", "result "+result.toString());
}
catch(Exception e)
{
Log.e("log_tag", "Error converting result "+e.toString());
}
try
{
JSONArray jArray=new JSONArray(result);
Log.i("json array", ""+jArray);
String s="",s1,s2,s3,s4,s5,s6,s7,s8,s9;
JSONArray newarr = jArray.getJSONObject(0).getJSONArray("order_item_list");
JSONArray newarr2 = jArray.getJSONObject(0).getJSONArray("order_course_list");
JSONArray newarr3 = jArray.getJSONObject(0).getJSONArray("order_item_list");
ArrayList<HashMap<String, String>>val=new ArrayList<HashMap<String,String>>();
for(int i=0;i<newarr.length();i++)
{
HashMap<String, String> map=new HashMap<String, String>();
String p,p1,p2,p3,p4,p5;
JSONObject json_data = newarr.getJSONObject(i);
p=json_data.getString("order_id");
}
catch(JSONException e)
{
Log.e("log_tag", "Error parsing data "+e.toString());
}
Json结果字符串
{
"order_list": [
{
"order_course_list": [
{
"order_item_list": [
{
"food_Id": "35",
"food_item_id": "18",
"food_name": "OrientalSalad",
"food_price": "8",
"food_quantity": "120",
"food_item_price": "8",
"food_image": "http: //166.62.17.208//images_large/oriental-salad-new.jpg",
"food_prefids": "Nil",
"food_preference": "",
"food_preference_price": "",
"ItemStatus": ""
},
{
"food_Id": "35",
"food_item_id": "19",
"food_name": "OrientalSalad",
"food_price": "6",
"food_quantity": "90",
"food_item_price": "6",
"food_image": "http: //166.62.17.208//images_large/oriental-salad-new.jpg",
"food_prefids": "@15@13",
"food_preference": "@NoRanchSauce@ExtraCroutons",
"food_preference_price": "@0@0",
"ItemStatus": ""
},
{
"food_Id": "45",
"food_item_id": "20",
"food_name": "CremeBrulee",
"food_price": "3",
"food_quantity": "36",
"food_item_price": "3",
"food_image": "http: //166.62.17.208//MenuImage.aspx?imgId=5555_23",
"food_prefids": "Nil",
"food_preference": "",
"food_preference_price": "",
"ItemStatus": ""
},
{
"food_Id": "42",
"food_item_id": "26",
"food_name": "Lasagna",
"food_price": "3",
"food_quantity": "156",
"food_item_price": "3",
"food_image": "http: //166.62.17.208//images_large/lasagna.jpg",
"food_prefids": "@22",
"food_preference": "@ExtraCheese",
"food_preference_price": "@0",
"ItemStatus": ""
},
{
"food_Id": "42",
"food_item_id": "27",
"food_name": "Lasagna",
"food_price": "4",
"food_quantity": "208",
"food_item_price": "4",
"food_image": "http: //166.62.17.208//images_large/lasagna.jpg",
"food_prefids": "@22",
"food_preference": "@ExtraCheese",
"food_preference_price": "@0",
"ItemStatus": ""
},
{
"food_Id": "40",
"food_item_id": "29",
"food_name": "Falafel",
"food_price": "2",
"food_quantity": "10",
"food_item_price": "2",
"food_image": "http: //166.62.17.208//images_large/falafel.jpg",
"food_prefids": "@32@33",
"food_preference": "@ServedwithHammous@ServedwithGarlicpaste",
"food_preference_price": "@0@0",
"ItemStatus": ""
},
{
"food_Id": "47",
"food_item_id": "30",
"food_name": "ChocolateMousse",
"food_price": "3",
"food_quantity": "27",
"food_item_price": "3",
"food_image": "http: //166.62.17.208//MenuImage.aspx?imgId=5555_25",
"food_prefids": "Nil",
"food_preference": "",
"food_preference_price": "",
"ItemStatus": ""
},
{
"food_Id": "51",
"food_item_id": "31",
"food_name": "ShishTawook",
"food_price": "2",
"food_quantity": "34",
"food_item_price": "2",
"food_image": "http: //166.62.17.208//MenuImage.aspx?imgId=5555_29",
"food_prefids": "@30",
"food_preference": "@MediumFried",
"food_preference_price": "@0",
"ItemStatus": ""
},
{
"food_Id": "42",
"food_item_id": "34",
"food_name": "Lasagna",
"food_price": "5",
"food_quantity": "260",
"food_item_price": "5",
"food_image": "http: //166.62.17.208//images_large/lasagna.jpg",
"food_prefids": "@22@23",
"food_preference": "@ExtraCheese@ExtraMeat",
"food_preference_price": "@0@0",
"ItemStatus": ""
},
{
"food_Id": "50",
"food_item_id": "35",
"food_name": "ShawermaPlatter",
"food_price": "1",
"food_quantity": "14",
"food_item_price": "1",
"food_image": "http: //166.62.17.208//MenuImage.aspx?imgId=5555_28",
"food_prefids": "@27",
"food_preference": "@ExtraMeat",
"food_preference_price": "@0",
"ItemStatus": ""
},
{
"food_Id": "51",
"food_item_id": "36",
"food_name": "ShishTawook",
"food_price": "1",
"food_quantity": "17",
"food_item_price": "1",
"food_image": "http: //166.62.17.208//MenuImage.aspx?imgId=5555_29",
"food_prefids": "Nil",
"food_preference": "",
"food_preference_price": "",
"ItemStatus": ""
}
],
"sub_id": "18",
"master_order_id": "16",
"status": "Placed",
"placed_time": "9/9/201412: 42: 51PM",
"confirmed_time": "",
"processed_time": "",
"waiter_code": "",
"order_type": "1",
"item_processed_status": ""
}
],
"order_id": "16",
"initial_time": "9/3/20141: 02: 45PM",
"placed_time": "9/9/20142: 57: 01PM",
"confirmed_time": "",
"processed_time": "",
"paid_time": "",
"total": "38",
"guest_order_type": "Home",
"order_status": "Placed",
"payment_satus": "NotPaid",
"delivery_time": "",
"status": "Placed",
"table_no": "1",
"order_type": "",
"device_type": ""
}
]
}
答案 0 :(得分：1)
你得到的第一个地方json对象不是数组。 尝试
JsonObject jsonobject = new JsonObject(result);
JSONArray jArray=jsonobject.getJsonArray("order_list");
答案 1 :(得分：1)
你的Json将对象作为字符串而不是数组返回..
在这里解析你的JSON并获得更好的解决方案...... jsoneditoronline
试试以下...
JSONObject JObj=new JSONObject (jsonresult);
JSONArray order_list = JObj.getJSONArray("order_list");
JSONArray order_course_list= order_list.getJSONObject(0).getJSONArray("order_course_list");
JSONArray order_item_list= order_course_list.getJSONObject(0).getJSONArray("order_item_list");
//getting order Id from **order_list array**
for(int i=0;i<order_list.length();i++)
{
String order_id = order_list.getJSONObject(i).getString("order_id");
}
答案 2 :(得分：1)
您编写了错误的代码，这就是您无法解析此json的原因。在尝试解析json之前读取任何json文档。
JsonObject jsonobject = new JsonObject(result);
JSONArray newarr = jsonobject. getJsonArray("order_list");
JSONArray newarr2 = newarr.getJSONObject(0).getJSONArray("order_course_list");
JSONArray newarr3 = newarr2.getJSONObject(0).getJSONArray("order_item_list");
ArrayList<HashMap<String, String>>val=new ArrayList<HashMap<String,String>>();
for(int i=0;i<newarr2.length();i++)
{
HashMap<String, String> map=new HashMap<String, String>();
String p,p1,p2,p3,p4,p5;
JSONObject json_data = newarr2.getJSONObject(i);
p=json_data.getString("order_id");
}