我必须反序列化以下json使用杰克逊图书馆进入客户类
{
"code":"C001","city": "Pune","street": "ABC Road"
}
和类作为
class Address{
String city;
String street;
}
class Customer{
String code;
Address address;
}
我已经在堆栈上找到了类似的问题
Java jackson embedded object deserialization
但答案不适用于我的情况.另外我只想使用杰克逊图书馆.
如何将此json映射到Customer对象？
解决方法
您可以在客户类的“地址”字段中添加一个
@JsonUnwrapped注释.这是一个例子：
public class JacksonValue {
final static String JSON = "{\n"
+" \"code\":\"C001\",\n"
+" \"city\": \"Pune\",\n"
+" \"street\": \"ABC Road\"\n"
+"}";
static class Address {
public String city;
public String street;
@Override
public String toString() {
return "Address{" +
"city='" + city + '\'' +
",street='" + street + '\'' +
'}';
}
}
static class Customer {
public String code;
@JsonUnwrapped
public Address address;
@Override
public String toString() {
return "Customer{" +
"code='" + code + '\'' +
",address=" + address +
'}';
}
}
public static void main(String[] args) throws IOException {
final ObjectMapper mapper = new ObjectMapper();
System.out.println(mapper.readValue(JSON,Customer.class));
}
}
输出：
Customer{code='C001',address=Address{city='Pune',street='ABC Road'}}
