如何在 Retrofit2 中捕获两个不同对象数组的 api 响应？ [复制]答案

【问题标题】：how to catch the api response in retrofit2 for two arrays of different objects? [duplicate]如何在 Retrofit2 中捕获两个不同对象数组的 api 响应？ [复制]
【发布时间】：2017-09-25 12:15:53
【问题描述】：

如何在 Retrofit2 中捕捉到以下响应？它有两种不同的对象类型。从 api 检索后如何存储和使用它？这是我的 api 响应的格式

{
"products": [
    {
        "categoryID": 2,
        "companyID": 1,
        "companyName": "Audi",
        "productID": 1001,
        "productName": "S6"
    },
    {
        "categoryID": 4,
        "companyID": 1,
        "companyName": "BWM",
        "productID": 1001,
        "productName": "Zen"
    },
    {
        "categoryID": 5,
        "companyID": 1,
        "companyName": "Ford",
        "productID": 1001,
        "productName": "Mustang"
    }],
"solutions": [
    {
        "companyID": 2,
        "companyName": "Audi",
        "solutionName": "A good plan",
        "solutionType": "Personalised",
        "working": "dsjhfgsdjhfgjsdh"
    },
    {
        "companyID": 2,
        "companyName": "djfhgkkl",
        "solutionName": "A good plan",
        "solutionType": "Personalised",
        "working": "asfh"
    }
]
}

【问题讨论】：

标签： java android api retrofit2

【解决方案1】：

您可以创建一个 POJO 类并从对象中获取数据这是 POJO

package com.example;

import java.util.List;
import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;

public class Example {

    @SerializedName("products")
    @Expose
    private List<Product> products = null;
    @SerializedName("solutions")
    @Expose
    private List<Solution> solutions = null;

    public List<Product> getProducts() {
        return products;
    }

    public void setProducts(List<Product> products) {
        this.products = products;
    }

    public List<Solution> getSolutions() {
        return solutions;
    }

    public void setSolutions(List<Solution> solutions) {
        this.solutions = solutions;
    }
}
-------------------------------com.example.Product.java-------------------------------

package com.example;

import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;

public class Product {
    @SerializedName("categoryID")
    @Expose
    private Integer categoryID;
    @SerializedName("companyID")
    @Expose
    private Integer companyID;
    @SerializedName("companyName")
    @Expose
    private String companyName;
    @SerializedName("productID")
    @Expose
    private Integer productID;
    @SerializedName("productName")
    @Expose
    private String productName;

    public Integer getCategoryID() {
        return categoryID;
    }

    public void setCategoryID(Integer categoryID) {
        this.categoryID = categoryID;
    }

    public Integer getCompanyID() {
        return companyID;
    }

    public void setCompanyID(Integer companyID) {
        this.companyID = companyID;
    }

    public String getCompanyName() {
        return companyName;
    }

    public void setCompanyName(String companyName) {
        this.companyName = companyName;
    }

    public Integer getProductID() {
        return productID;
    }

    public void setProductID(Integer productID) {
        this.productID = productID;
    }

    public String getProductName() {
        return productName;
    }

    public void setProductName(String productName) {
        this.productName = productName;
    }
}
-------------------------------com.example.Solution.java-------------------------------

package com.example;

import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;

public class Solution {
    @SerializedName("companyID")
    @Expose
    private Integer companyID;
    @SerializedName("companyName")
    @Expose
    private String companyName;
    @SerializedName("solutionName")
    @Expose
    private String solutionName;
    @SerializedName("solutionType")
    @Expose
    private String solutionType;
    @SerializedName("working")
    @Expose
    private String working;

    public Integer getCompanyID() {
        return companyID;
    }

    public void setCompanyID(Integer companyID) {
        this.companyID = companyID;
    }

    public String getCompanyName() {
        return companyName;
    }

    public void setCompanyName(String companyName) {
        this.companyName = companyName;
    }

    public String getSolutionName() {
        return solutionName;
    }

    public void setSolutionName(String solutionName) {
        this.solutionName = solutionName;
    }

    public String getSolutionType() {
        return solutionType;
    }

    public void setSolutionType(String solutionType) {
        this.solutionType = solutionType;
    }

    public String getWorking() {
        return working;
    }

    public void setWorking(String working) {
        this.working = working;
    }
}

您可以使用 http://www.jsonschema2pojo.org/ 从 JSON 生成 POJO

【讨论】：

【解决方案2】：

您可以在此处使用 Gson 解析并为产品和解决方案数组添加 @Nullable 注释。在使用这些数据的同时检查 arraylist 的大小并检测列表中存在哪个数组。

【讨论】：

【解决方案3】：

将您的回复复制并粘贴到 Jsonschema2Pojo获取您回复的愿望Pojo。

【讨论】：