英文:
Best Way to do Object Mapping with Nested Json
问题
public class SearchResults {
private List<SearchResult> result;
private int result_count;
private String type;
}
class SearchResult {
private String name;
private String id;
private Platform platform;
private Image image;
private float min_price;
private List<Variation> variations;
}
class Platform {
private String name;
private String category;
private String type;
}
class Image {
private String url;
private int height;
private int width;
}
class Variation {
private List<Item> items;
private String name;
private String type;
}
class Item {
private String hex_code;
private String name;
private String id;
private String type;
}
英文:
Currently I'm trying to write a site that interacts with a public API using Feign and Spring.
I'm having trouble deciding how to handle the object mapping for deeply nested JSON.
Ex:
[
{
"type": "console",
"category": "Console",
"result_count": 1,
"shown_count": 1,
"result": [
{
"name": "Nintendo Switch",
"id": "nintendo-switch",
"platform": {
"name": "Nintendo",
"category": "nintendo",
"type": "platform"
},
"image": {
"url": "https://encrypted-tbn1.gstatic.com/shopping?q=tbn:ANd9GcRqJYIheMDjTE9WAHjMSW4bjh7OplS7Bep9CdsBBLWMwGdXim7xOG4&usqp=CAc",
"height": 409,
"width": 631
},
"min_price": 205,
"variations": [
{
"items": [
{
"hex_code": "#696969",
"name": "Gray",
"id": "space-gray",
"type": "color"
},
{
"hex_code": "#C0C0C0",
"name": "Silver",
"id": "silver",
"type": "color"
}
],
"name": "Color",
"type": "color"
},
{
"items": [
{
"name": "Nintendo",
"id": "nintendo",
"type": "platform"
}
],
"name": "Platform",
"type": "platform"
}
]
}
]
}
]
As of now, I have a single Java file with a class for each object in the JSON, and I've considered having the Object mapper just put everything into a HashMap. Is there a more elegant way to do this?
public class SearchResults {
private List<SearchResult> products;
private int resultCount;
private String type;
}
class SearchResult {
private String name;
private String slug;
private Image image;
}
class Image {
private String URL;
private String height;
private String width;
}
答案1
得分: 1
根据提供的 JSON 文件，我已经设计了类，并且提供了将 JSON 文件解析为 Java 的代码。
public class Console {
String type;
String category;
int result_count;
int show_count;
Result[] result;
}
public class Result {
String name;
String id;
Platform platform;
Image image;
int mini_price;
Variation[] variations;
}
public class Platform {
String name;
String category;
String type;
}
public class Image {
String url;
int height;
int width;
}
public class Variation {
String name;
String type;
Item[] items;
}
public class Item {
String hex_code;
String name;
String id;
String type;
}
解析代码部分：
ObjectMapper objectMapper = new ObjectMapper();
objectMapper.enable(SerializationFeature.INDENT_OUTPUT);
Console[] consoles = objectMapper.readValue(ResourceUtils.getFile("json 文件路径"), Console[].class);
logger.info("Continents -> {}", (Object) consoles);
for (Console console : consoles) {
// 根据需要读取数据
}
请注意，代码中的 "json 文件路径" 需要替换为实际的 JSON 文件路径。
英文:
Based on the json file provided i have designed the classes and also provided the code to parse the json file to java
public class Console{
String type;
String category;
int result_count;
int show_count;
Result [] result;
}
public class Result{
String name;
String id;
Platform platform;
Image image;
int mini_price;
Variation [] variations;
}
public class Platform{
String name;
String category;
String type;
}
public class Image{
String url;
int height;
int width;
}
public class Variation{
String name;
String type;
Item [] items;
}
public class Item{
String hex_code;
String name;
String id;
String type;
}
code to parse:
ObjectMapper objectMapper = new ObjectMapper();
objectMapper.enable(SerializationFeature.INDENT_OUTPUT);
Console[] consoles = objectMapper.readValue(ResourceUtils.getFile("path of json file"), Console[].class);
logger.info("Continents -> {}",(Object)continents);
for(Console console:consoles) {
//read the data accordingly
}
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