Java 嵌套数组的GSON解析
我很难理解GSON是否可以默认处理这种json,或者我是否需要为每个子元素实现反序列化器 json输入Java 嵌套数组的GSON解析,java,json,gson,Java,Json,Gson,我很难理解GSON是否可以默认处理这种json,或者我是否需要为每个子元素实现反序列化器 json输入 { "services":[ { "id": 2, "name": "Buy" }, { "id": 3, "name": "Sell" } ] "status": { "code": 0, "message": "" }
{
"services":[
{
"id": 2,
"name": "Buy"
},
{
"id": 3,
"name": "Sell"
}
]
"status": {
"code": 0,
"message": ""
}
}
就我而言,最好的情况是让下面的类包含所有数据
java[POJO]
public class Services {
public List<ServiceItem> services;
public Status status;
public class ServiceItem {
public int id;
public String name;
}
public class Status {
public int code;
public String message;
}
}
公共类服务{
公开名单服务;
公众地位;
公共类服务项{
公共int id;
公共字符串名称;
}
公共阶级地位{
公共整数码;
公共字符串消息;
}
}
有没有可能让GSON处理类和json,然后让它工作呢?或者我需要为每个子类创建反序列化程序吗 更正json输入,如下所示(您在状态
字段之前忘记了逗号)
然后让我们把你们的课程看作是
如果输入是json字符串jsonInput
,则
输出:
这是无效的json
{
"services":[
{
"id": 2,
"name": "Buy"
},
{
"id": 3,
"name": "Sell"
}
],
"status": {
"code": 0,
"message": ""
}
}
public class Services {
public List<ServiceItem> services;
public Status status;
// getters and setters
@Override
public String toString() {
return "["+services.toString()+status.toString()+"]";
}
public class ServiceItem {
public int id;
public String name;
// getters and setters
@Override
public String toString() {
return "("+id+","+name+")";
}
}
public class Status {
public int code;
public String message;
// getters and setters
@Override
public String toString() {
return ",("+code+","+message+")";
}
}
}
Gson gson = new Gson();
Services data = gson.fromJson(new BufferedReader(new FileReader(
"jsonInput.json")), new TypeToken<Services>() {
}.getType());
System.out.println(data);
Gson gson = new Gson();
Services data = gson.fromJson(jsonInput, Services.class);
System.out.println(data);
[[(2,Buy), (3,Sell)],(0,)]