对接多个系统，对方返回的结构体都有data
publick class Rxgd {
private Data data;
}
public class Djxtgd1 {
private Data data;
}
public class Djxtgd2 {
private Data data;
}
这里面的Data结构还不一样
public Class Data1 {
private String code;
}
public Class Data2 {
private String name;
}
序列化对象，只需要使用注解"@JsonProperty(value = "pwd")"
import com.fasterxml.jackson.annotation.JsonProperty;
public class Data{
@JsonProperty(value = "pwd")
private String password;
}