[英]Best way to map json to a Java object
I'm using restTemplate to make a rquest to a servlet that returns a very simple representation of an object in json. 我正在使用restTemplate对servlet进行rquest,该servlet返回json中对象的非常简单的表示。
{
"id":"SomeID"
"name":"SomeName"
}
And I have a DTO with those 2 fields and the corresponding setters and getters. 我有一个带有这两个字段的DTO以及相应的setter和getter。 What I would like to know is how to create the object using that json response without having to "parse" the response. 我想知道的是如何使用该json响应创建对象而无需“解析”响应。
Personally I would recommend Jackson. 我个人会推荐杰克逊。 Its fairly lightweight, very fast and requires very little configuration. 它相当轻巧,速度非常快,只需要很少的配置。 Here's an example of deserializing: 以下是反序列化的示例:
@XmlRootElement
public class MyBean {
private String id;
private String name;
public MyBean() {
super();
}
// Getters/Setters
}
String json = "...";
MyBean bean = new ObjectMapper().readValue(json, MyBean.class);
Here's an example using Google Gson . 以下是使用Google Gson的示例。
public class MyObject {
private String id;
private String name;
// Getters
public String getId() { return id; }
public String getName() { return name; }
}
And to access it: 并访问它:
MyObject obj = new Gson().fromJson(jsonString, MyObject.class);
System.out.println("ID: " +obj.getId());
System.out.println("Name: " +obj.getName());
As far as the best way, well that's subjective. 至于最好的方式,这是主观的。 This is one way you can accomplish what you need. 这是您可以实现所需目标的一种方式。
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