使用 XStream 读取整个文件

Question

我想使用 XStream 读取 xml 文件的内容。我想读取整个文件，但不知道在 while 条件下放什么，这样 XStream 就不会抛出 java.io.EOFException exception.Basically 我想在什么时候停止循环我到达了文件的末尾。代码如下：

public static void main(String[] args) throws IOException, ClassNotFoundException
{
    XStream xstream = new XStream(new StaxDriver());
    xstream.alias("person", Person.class);
    Reader someReader = new FileReader("filename.xml");

    ObjectInputStream in = xstream.createObjectInputStream(someReader);

    while (???) {            
        Person a = (Person)in.readObject(); // Person is just a class containing a String and an int
        a.print();
    }
}

Answer 1

我的建议：如果它们作为列表存储在 XML 中，请尝试在 中作为列表阅读它:

List<Person> people = new ArrayList<Person>();
people = (List<Person>) xstream.fromXML(someReader);

根据 XStream API, the XStream object can read from any number of different inputs, including directly from a Reader. If you do read in directly from a list, you will need to alter your code slightly to allow for implicit collections. A good working example of using implicit collections can be found here.

或者，如果您确实想使用 ObjectInputStream，您可以参考 this question and this answer 了解如何判断何时到达 ObjectInputStream 末尾的解决方案。

使用 XStream 读取整个文件

Read whole file using XStream

java

xml

io