使用XStream序列化为XML但不获取所有字段

I have a class called Lookup that has two properties:

我有一个名为Lookup的类，它有两个属性：

public class Lookup {

    private String surveyName;
    private String GUID;    

    public Lookup(String name, String guid){
        this.surveyName = name;
        this.GUID = guid;   
    }

}

In another class, I have a list of Lookup that I am trying to serialize and save to file. This is how I'm doing it:

在另一个类中，我有一个Lookup列表，我正在尝试序列化并保存到文件。这就是我这样做的方式：

List<Lookup> lookup = new ArrayList<Lookup>();
lookup.add(new Lookup("foo","bar"));
XStream serializer = new XStream();
serializer.alias("Lookups",List.class);
String xml = serializer.toXML(lookup);

The XML I end up with is:

我最终得到的XML是：

<Lookups>
  <Lookup>
    <GUID>bar</GUID>
  </Lookup>
</Lookups>

As you can see, it only serialized the field GUID but not the field surveyName. Why is it ignoring that field?

如您所见，它仅序列化了字段GUID，但没有序列化字段surveyName。为什么忽略那个领域？

2 个解决方案

#1

Are you sure that you don't modify Lookup variable somewhere else. This code runs fine

您确定不要在其他地方修改Lookup变量吗？这段代码运行正常

public class Test {
    public static void main(String[] args) {
        List<Lookup> lookup = new ArrayList<Lookup>();
        lookup.add(new Lookup("foo","bar"));
        XStream serializer = new XStream();
        serializer.alias("Lookups",List.class);
        String xml = serializer.toXML(lookup);
        System.out.println(xml);
    }
}
class Lookup {
    private String surveyName;
    private String GUID;    

    public Lookup(String name, String guid){
        this.surveyName = name;
        this.GUID = guid;   
    }
}

Output:

输出：

<Lookups>
  <Lookup>
    <surveyName>foo</surveyName>
    <GUID>bar</GUID>
  </Lookup>
</Lookups>

#2

Silly me, the mistake was completely on my end. The field name was receiving an empty string, and thus XStream must have been ignoring it.

傻傻的，这个错误完全在我身上。字段名称正在接收一个空字符串，因此XStream必须忽略它。

#1