[英]Parsing XML using android sax parser
below is a sample structure of the XML I'm trying to parse using the Android SAX parsing approach in this tutorial . 以下是本教程中我尝试使用Android SAX解析方法解析的XML的示例结构。
<root>
<parent>
<id></id>
<name></name>
<child>
<id></id>
<name></name>
</child>
<child>
<id></id>
<name> </name>
</child>
</parent>
<parent>
<id></id>
<name></name>
<child>
<id></id>
<name></name>
</child>
</parent>
...
</root>
I have two classes named Parent
and Child
. 我有两个名为Parent
和Child
课程。 Parent has a field which is a list of Child objects, such as this. 父级具有一个字段,该字段是诸如此类的子级对象的列表。
Parent 父级
public class Parent {
private String id;
private String name;
private List<Child> childList;
//constructor, getters and setters
// more code
}
Child 儿童
public class Child {
private String id;
private String name;
//constructor, getters and setters
// more code
}
So I created a Parent object to store the parsed data. 因此,我创建了一个Parent对象来存储解析后的数据。 In the code below I can get the name
and id
element of parent
but I cant figure out how to parse the child
elements and their own child elements. 在下面的代码中,我可以获取parent
的name
和id
元素,但无法弄清楚如何解析child
元素及其自己的子元素。 I dont know if this is the right way to accomplish what I'm trying to do. 我不知道这是否是完成我想做的正确方法。
Can someone show me a way? 有人可以告诉我一种方法吗?
public class AndroidSaxFeedParser extends BaseFeedParser {
public AndroidSaxFeedParser(String feedUrl) {
super(feedUrl);
}
public List<Parent> parse() {
final Parent current = new Parent();
RootElement root = new RootElement("root");
final List<Parent> parents = new ArrayList<Parent>();
Element parent = root.getChild("parent");
parent.setEndElementListener(new EndElementListener() {
public void end() {
parents.add(current.copy());
}
});
parent .getChild("id").setEndTextElementListener(
new EndTextElementListener() {
public void end(String body) {
current.setId(body);
}
});
parent .getChild("name").setEndTextElementListener(
new EndTextElementListener() {
public void end(String body) {
current.setName(body);
}
});
try {
Xml.parse(this.getInputStream(), Xml.Encoding.UTF_8,
root.getContentHandler());
} catch (Exception e) {
throw new RuntimeException(e);
}
return parents ;
}
}
parent.getChild("child").getChild("id").setEndTextElementListener(
new EndTextElementListener() {
public void end(String body) {
current.setChildId(body);
}
});
parent.getChild("child").getChild("name").setEndTextElementListener(
new EndTextElementListener() {
public void end(String body) {
current.setChildName(body);
}
});
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