将JSON解析为Java object 4
将JSON解析为Java object 4
提问于 2016-04-04 13:37:42
如何将嵌套的JSON解析为Java
{
"menu": {
"id": "file",
"value": "File",
"popup": {
"menuitem": [{
"value": "New",
"onclick": "CreateNewDoc"
}, {
"value": "Open",
"onclick": "OpenDoc"
}, {
"value": "Close",
"onclick": "CloseDoc"
}]
}
}
}回答 2
Stack Overflow用户
发布于 2016-05-21 14:30:49
您可以使用其他修饰符，而不仅仅是public
public class MainMenu {
public Menu menu;
public class Menu {
public String id;
public String value;
public Popup popup;
public class Popup {
public List<Item> menuitem;
public class Item {
public String value;
public String onclick;
}
}
}
}示例
public class Example {
public static void main(String[] args) {
String json = "{" +
"'menu': "+
"{" +
"'id': 'file'," +
"'value': 'File'," +
"'popup': " +
"{" +
"'menuitem': " +
"[{" +
"'value': 'New'," +
"'onclick': 'CreateNewDoc'" +
"}, {" +
"'value': 'Open'," +
"'onclick': 'OpenDoc'" +
"}, {" +
"'value': 'Close'," +
"'onclick': 'CloseDoc'" +
"}]" +
"}" +
"}" +
"}";
Gson gson = new GsonBuilder().setPrettyPrinting().create();
MainMenu mainMenu = gson.fromJson(json, MainMenu.class);
System.out.println(gson.toJson(mainMenu));
}
}输出：
{
"menu": {
"id": "file",
"value": "File",
"popup": {
"menuitem": [
{
"value": "New",
"onclick": "CreateNewDoc"
},
{
"value": "Open",
"onclick": "OpenDoc"
},
{
"value": "Close",
"onclick": "CloseDoc"
}
]
}
}
}Maven依赖
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.4</version>
</dependency>Stack Overflow用户
发布于 2018-06-12 02:56:15
{
"items": {
"item": [
{
"id": "0001",
"type": "donut",
"name": "Cake",
"ppu": 0.55,
"batters": {
"batter": [
{
"id": "1001",
"type": "Regular"
},
{
"id": "1002",
"type": "Chocolate"
},
{
"id": "1003",
"type": "Blueberry"
},
{
"id": "1004",
"type": "Devil's Food"
}
]
}
"topping": [
{
"id": "5001",
"type": "None"
},
{
"id": "5002",
"type": "Glazed"
},
{
"id": "5005",
"type": "Sugar"
},
{
"id": "5007",
"type": "Powdered Sugar"
},
{
"id": "5006",
"type": "Chocolate with Sprinkles"
},
{
"id": "5003",
"type": "Chocolate"
},
{
"id": "5004",
"type": "Maple"
}
]
}
]
}
} 页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/36395221
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