java - JSONException 字符串无法转换为 JSONObject

Question

我正在尝试将字符串转换为 JSONObject。这是我的代码:

JSONObject obj = new JSONObject(str);

Vehicle.feature 文件包含:

    Scenario: Create a vehicle with valid json request
    Given vehicle json for VehicleService
    """
        "{\"vin\" : \"VIN5\", \"brand\" : \"Toyota\", \"model\" : \"Innova\", \"year\" : \"2017\", \"color\" : \"Red\", \"modelCode\" : \"1234\", \"type\" : \"M\", \"countryCode\" : \"JP\", \"isConnected\" : \"true\", \"isActive\" : \"true\"}"
    """
    When performing POST on VehicleService url /add
    Then VehicleService should return status code 200

VehicleStepDefs 包含:

@Given("^vehicle json for VehicleService$")
public void submitValidVehicleRequest(String vehicleJson) throws JSONException {
    JSONObject obj = new JSONObject(vehicleJson);
    request = given().and()
            .header("Content-Type", MediaType.APPLICATION_JSON)
            .accept(ContentType.JSON)
            .body(obj);
    request.then().log().all();
}

我的错误如下所示:

org.json.JSONException: Value {"vin" : "VIN5", "brand" : "Toyota", "model" : "Innova", "year" : "2017", "color" : "Red", "modelCode" : "1234", "type" : "M", "countryCode" : "JP", "isConnected" : "true", "isActive" : "true"} of type java.lang.String cannot be converted to JSONObject
        at org.json.JSON.typeMismatch(JSON.java:111)
        at org.json.JSONObject.<init>(JSONObject.java:159)
        at org.json.JSONObject.<init>(JSONObject.java:172)
        at com.examples.demo.VehicleStepDefs.submitValidVehicleRequest(VehicleStepDefs.java:43)
        at ?.Given vehicle json for VehicleService(Vehicle.feature:8)

我做错了什么？

Answer 1

检查您的导入。

这是运行代码:

import org.json.JSONException;
import org.json.JSONObject;

public class TestJson {
    public static void main(String[] args) {
        try {
            JSONObject obj = new JSONObject("{\"vin\" : \"VIN5\", \"brand\" : \"Toyota\", \"model\" : \"Innova\", \"year\" : \"2017\", \"color\" : \"Red\", \"modelCode\" : \"1234\", \"type\" : \"M\", \"countryCode\" : \"JP\", \"isConnected\" : \"true\", \"isActive\" : \"true\"}");
            System.out.println(obj.get("model"));
        } catch (JSONException e) {
            e.printStackTrace();
        }
    }

}

输出:Innova