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这里是我的阶级结构:JSON对象映射:避免序列化JSON字符串,它列出派生类
public class Business {
public long id;
public List<Employee> employees;
// constructors, getters, setters
}
public class BusinessParcelable extends Business implements Parcelable {
// some functions, not additional fields
}
public class Employee {
// fields, constructor, getters, setters
}
public class EmployeeParcelable extends Employee implements Parcelable {
// some functions, no additional fields
}
如果我使用下面的代码序列化到JSON字符串:
someFunction(BusinessParcelable b) {
ObjectMapper objectMapper = new ObjectMapper();
Business base = (Business)b;
String jsonString = objectMapper.writeValueAsString(base);
}
的jsonString看起来像:
{
"id": 15,
"employees": [
{
...
}
],
"employeesParcelable": [
{
...
}
]
}
我不希望员工和employeesParcelable重复在我的JSON st环。我能够通过更换来解决它:
Business base = (Business)b;
有了:
Business base = new Business();
base.setXXX(b.getXXX());
base.setYYY(b.getYYY());
base.setZZZ(b.getZZZ());
但我想避免这种深刻的副本作为我的阶级结构有很多领域,是多层次深。杰克逊是否有办法避免重复基本和派生列表(通过一些简单的注释)?
编辑: 我只是能够得到使用谷歌GSON期望的结果:
Gson gson = new Gson();
String jsonUsingGson = gson.toJson(base);
它仍然是很好的知道如何使用杰克逊虽然得到了相同的结果。