[英]How to map JSON property names to our own variable names during serialization?
I am trying to serialize my below JSON to a DataMetrics
class - 我正在尝试将下面的JSON序列化为DataMetrics
类-
String json = "[{\"min\": 0,\"max\": 1209,\"avg\": 1.9203402,\"count\": 7344636,\"sumSq\": 71832774, \"stddev\": 2.4683187, \"median\": 2,\"percentileMap\": {\"95\": 4},\"metricName\": \"TransactionDuration\",\"dimensions\": {\"env\": \"dev\",\"pool\": \"titan\",\"Name\": \"Client::Sync\", \"Type\": \"Client::Sync\"},\"value\": 14104200}]";
Generally, for nested objects like dimensions
you'll declare another POJO for it 通常,对于诸如dimensions
类的嵌套对象,您将为其声明另一个POJO
class DataMetrics {
private String metricName;
private Map<String, Integer> percentileMap;
private String median;
private String stddev;
private String sumSq;
private String count;
private String avg;
private String max;
private String min;
private Dimensions dimensions;
private class Dimensions{
private String env;
private String pool;
private String Name;
}
}
And below is the code I have which works fine - 下面是我拥有的可以正常工作的代码-
public void test() {
String json = "[{\"min\": 0,\"max\": 1209,\"avg\": 1.9203402,\"count\": 7344636,\"sumSq\": 71832774, \"stddev\": 2.4683187, \"median\": 2,\"percentileMap\": {\"95\": 4},\"metricName\": \"TransactionDuration\",\"dimensions\": {\"env\": \"dev\",\"pool\": \"titan\",\"Name\": \"Client::Sync\", \"Type\": \"Client::Sync\"},\"value\": 14104200}]";
final Gson gson = new Gson();
final Type type = new TypeToken<List<DataMetrics>>() {}.getType();
final List<DataMetrics> records = gson.fromJson(json, type);
}
Here member variable names is matching the JSON property name exactly as it is. 在这里,成员变量名称与JSON属性名称完全匹配。
stdDev
=> stddev
stdDev
=> stddev
name
=> Name
name
=> Name
percentile
=> percentileMap
percentile
=> percentileMap
Now Is there any way, I can have my own variable names and map the JSON property name to those names, if possible? 现在有什么办法,如果可能的话,我可以拥有自己的变量名称并将JSON属性名称映射到这些名称? I don't want to keep Name
as a variable name in my Dimensions class. 我不想在我的Dimensions类中将Name
保留为变量名。
Use SerializedName
annotation: 使用SerializedName
批注:
import com.google.gson.annotations.SerializedName;
class DataMetrics {
[..]
private Dimensions dimensions;
private class Dimensions{
private String env;
private String pool;
@SerializedName("Name")
private String nameYouWant;
}
}
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