Java对象类型数组的JSON响应主体

问题描述

我正在将类型数组的JSON响应转换为java Object类，但是在进行反序列化时却收到错误消息

com.google.gson.JsonSyntaxException：java.lang.IllegalStateException：预期为BEGIN_OBJECT，但在第1行第2列路径处为BEGIN_ARRAY 位于com.google.gson.internal.bind.ReflectiveTypeAdapterFactory $ Adapter.read（ReflectiveTypeAdapterFactory.java:200）

JSON响应

[
    {
        "name": "Apple iPhone X","price": 700,"rating": 4,"id": 1
    },{
        "name": "Apple Mac Mini","price": 900,"rating": 5,"id": 2
    },{
        "name": "HTC Chacha","price": 200,"rating": 3,"id": 4
    },{
        "name": "Sony Xperia","price": 600,"id": 5
    },{
        "name": "Samsung galaxy","price": 400,"rating": 2,"id": 6
    },{
        "name": "LG LED 5600VW","price": 550,"rating": 1,"id": 7
    },{
        "name": "Moto Razor","price": 65000,"id": 9
    }
]

Phones.Java（对象类模型）

package apiEngine.model.responses;


public class Phones {

public String name;
public Integer price;
public Integer rating;
public Integer id;

public Phones() {
}

public Phones(String name,Integer price,Integer rating,Integer id) {
super();
this.name = name;
this.price = price;
this.rating = rating;
this.id = id;
}

}

将JSON响应转换为Java对象的转换方法

private static Phones phoneResponse;
public void displaylist() {
        RequestSpecification request = RestAssured.given();
        request.header("Content-Type","application/json").header("x-access-token",token);
        response = request.get("/products");
        phoneResponse = response.getBody().as(Phones.class);
        jsonString = response.asstring();
        //System.out.println("list of phone is displayed \n" + phoneResponse);
    }

解决方法

您正在尝试将JSON数组转换为对象。尝试类似的东西；

final Phones[] phoneResponses = response.getBody().as(Phones[].class);

或者：

final Phones[] phoneResponses = new Gson().fromJson(jsonString,Phones[].class);

此外，我建议您将Phones类的名称重构为Phone，因为它代表单个电话。

,

您正在尝试将JSON array用作object-您需要将其作为数组获取，不确定它是否适用于GSON，但通常是这样的：

phoneResponse = response.getBody().as(Phones[].class);

应该工作。

phoneResponse必须是Phone类的数组。因此，phones这个名称可能更合适。