Question

这是我的JSON

{"result1":[{"pid":"55708","pname":"johnson","unitprice":"42"},{"pid":"16592","pname":"Hamam Soap","unitprice":"30"},{"pid":"02931","pname":"Santoor Soap","unitprice":"26"},{"pid":"71036","pname":"Vivel Soap","unitprice":"50"},{"pid":"25942","pname":"Lux","unitprice":"28"},{"pid":"22658","pname":"Lux","unitprice":"28"},{"pid":"66156","pname":"Olive","unitprice":"50"},{"pid":"16004","pname":"Navaratna Oil","unitprice":"65"},{"pid":"44752","pname":"Lays","unitprice":"20"},{"pid":"62542","pname":"Mysore Sandel","unitprice":"70"},{"pid":"78276","pname":"Chik Shampoo","unitprice":"3"},{"pid":"12629","pname":"Head & shoulders","unitprice":"3"},{"pid":"23524","pname":"ThumsUp","unitprice":"20"},{"pid":"38026","pname":"Dettol Soap","unitprice":"30"}]}

它是有效的JSON，但我收到同样的错误。

        jsonObject=new JSONObject(json_string1);
        jsonArray=jsonObject.getJSONArray("result1");

        while (count<jsonArray.length())
        {
            JSONObject jo=jsonArray.getJSONObject(count);
            pid=jo.getString("pid");
            Product_Name=jo.getString("pname");
            product_Price=jo.getString("unitprice");
        }

Answer 1

你必须像下面那样增加计数变量。

int count = 1;
jsonObject=new JSONObject(json_string1);
        jsonArray=jsonObject.getJSONArray("result1");

        while (count<jsonArray.length())
        {
            JSONObject jo=jsonArray.getJSONObject(count);
            pid=jo.getString("pid");
            Product_Name=jo.getString("pname");
            product_Price=jo.getString("unitprice");
            count ++;
        }

错误就在这里

/ n {＆＃34; result1＆＃34;：[{＆＃34; pid＆＃34;：＆＃34; 55708＆＃34;，＆＃34; pname＆＃34;}的字符0的预期字面值：＆＃34;约翰逊＆＃34;＆＃34;单价＆＃34;：＆＃34; 42＆＃34;}，{＆＃34; PID＆＃34;：＆＃34; 16592＆＃34;＆＃ 34; pname＆＃34;：＆＃34; Hamam Soap＆＃34;，＆＃34; unitprice＆＃34;：＆＃34; 30＆＃34;}，{＆＃34; pid＆＃34;：＆＃34; 02931＆＃34;，＆＃34; pname＆＃34;：＆＃34; Santoor Soap＆＃34;，＆＃34; unitprice＆＃34;：＆＃34; 26＆＃34;}，{＆＃34; pid＆＃ 34;：＆＃34; 71036＆＃34;，＆＃34; pname＆＃34;：＆＃34; Vivel Soap＆＃34;，＆＃34; unitprice＆＃34;：＆＃34; 50＆＃34;}， {＆＃34; PID＆＃34;：＆＃34; 25942＆＃34;＆＃34; PNAME＆＃34;：＆＃34;勒克斯＆＃34;＆＃34;单价＆＃34;：＆＃34; 28＆＃34;}，{＆＃34; PID＆＃34;：＆＃34; 22658＆＃34;＆＃34; PNAME＆＃34;：＆＃34;勒克斯＆＃34;＆＃34;单价＆＃34 ;：＆＃34; 28＆＃34;}，{＆＃34; PID＆＃34;：＆＃34; 66156＆＃34;＆＃34; PNAME＆＃34;：＆＃34;橄榄＆＃34;，＆＃34;单价＆＃34;：＆＃34; 50＆＃34;}，{＆＃34; PID＆＃34;：＆＃34; 16004＆＃34;＆＃34; PNAME＆＃34;：＆＃34; Navaratna Oil＆＃34;，＆＃34; unitprice＆＃34;：＆＃34; 65＆＃34;}，{＆＃34; pid＆＃34;：＆＃34; 44752＆＃34;，＆＃34; pname＆＃ 34;：＆＃34;乐事＆＃34;＆＃34;单价＆＃34;：＆＃34; 20＆＃34;}，{＆＃34; PID＆＃34;：＆＃34; 62542＆＃34 ;, ＆＃34; PNA我＆＃34;：＆＃34;迈索尔桑德尔＆＃34;，＆＃34; unitprice＆＃34;：＆＃34; 70＆＃34;}，{＆＃34; pid＆＃34;：＆＃34; 78276＆＃ 34;，＆＃34; pname＆＃34;：＆＃34; Chik Shampoo＆＃34;，＆＃34; unitprice＆＃34;：＆＃34; 3＆＃34;}，{＆＃34; pid＆＃34; ：＆＃34; 12629＆＃34;，＆＃34; pname＆＃34;：＆＃34; Head＆amp;肩＆＃34;＆＃34;单价＆＃34;：＆＃34; 3＆＃34;}，{＆＃34; PID＆＃34;：＆＃34; 23524＆＃34;＆＃34; PNAME＆＃34 ;：＆＃34; ThumsUp＆＃34;＆＃34;单价＆＃34;：＆＃34; 20＆＃34;}，{＆＃34; PID＆＃34;：＆＃34; 38026＆＃34;，＆＃34; pname＆＃34;：＆＃34; Dettol Soap＆＃34;，＆＃34; unitprice＆＃34;：＆＃34; 30＆＃34;}]} / n

Answer 2

这对我来说很好用：

JSONObject jsonObject = new JSONObject("{\"result1\":[{\"pid\":\"55708\",\"pname\":\"johnson\",\"unitprice\":\"42\"},{\"pid\":\"16592\",\"pname\":\"Hamam Soap\",\"unitprice\":\"30\"},{\"pid\":\"02931\",\"pname\":\"Santoor Soap\",\"unitprice\":\"26\"},{\"pid\":\"71036\",\"pname\":\"Vivel Soap\",\"unitprice\":\"50\"},{\"pid\":\"25942\",\"pname\":\"Lux\",\"unitprice\":\"28\"},{\"pid\":\"22658\",\"pname\":\"Lux\",\"unitprice\":\"28\"},{\"pid\":\"66156\",\"pname\":\"Olive\",\"unitprice\":\"50\"},{\"pid\":\"16004\",\"pname\":\"Navaratna Oil\",\"unitprice\":\"65\"},{\"pid\":\"44752\",\"pname\":\"Lays\",\"unitprice\":\"20\"},{\"pid\":\"62542\",\"pname\":\"Mysore Sandel\",\"unitprice\":\"70\"},{\"pid\":\"78276\",\"pname\":\"Chik Shampoo\",\"unitprice\":\"3\"},{\"pid\":\"12629\",\"pname\":\"Head & shoulders\",\"unitprice\":\"3\"},{\"pid\":\"23524\",\"pname\":\"ThumsUp\",\"unitprice\":\"20\"},{\"pid\":\"38026\",\"pname\":\"Dettol Soap\",\"unitprice\":\"30\"}]}");
            JSONArray jsonArray = jsonObject.getJSONArray("result1");
            int count = 0;

            String pid="", Product_Name="",product_Price="";
            while (count<jsonArray.length())
            {
                JSONObject jo=jsonArray.getJSONObject(count);
                 pid=jo.getString("pid");
                 Product_Name=jo.getString("pname");
                 product_Price=jo.getString("unitprice");
                 count++;
                 System.out.println(pid + " " + Product_Name +" "+ product_Price);
            }

但是，要小心你目前正在做的事情。您的while循环遍历整个result1数组。因此，您的变量pid Product_name product_Price将具有数组最后一个条目的值。

org.json.JSONException：字符0处的预期文字值

2 个答案: