Question

我有以下Json，我想解析数组（汽车），

[
{
"name": "John",
"city": "Berlin",
"cars": [
"audi",
"bmw"
],

当我尝试使用以下代码时出现错误

JSONParser parser = new JSONParser();

    JSONArray a = (JSONArray) parser.parse(new FileReader(
            "C:\\General\\Json\\json.txt"));

    for (Object o : a) {
        JSONObject person = (JSONObject) o;

        String name = (String) person.get("name");
        System.out.println(name);

        String city = (String) person.get("city");
        System.out.println(city);

        String job = (String) person.get("job");
        System.out.println(job);

    }

这里是错误“jsonObject无法解析” 我该怎样克服它？

JSONArray cars = (JSONArray) jsonObject.get("cars");

Answer 1

 you did not declared jsonObject

Answer 2

JSONArray cars =（JSONArray）person.get（“cars”）;试试这个而不是JSONArray cars =（JSONArray）jsonObject.get（“cars”）;这个PSR也正确

解析Json数组错误“jsonObject无法解析”

2 个答案: