package uni.dcloud.io.uniplugin_richalert.Info;
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import android.text.TextUtils;
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import com.alibaba.fastjson.JSONObject;
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import org.xml.sax.Attributes;
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import org.xml.sax.SAXException;
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import org.xml.sax.helpers.DefaultHandler;
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import java.util.ArrayList;
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public class SaxHelper extends DefaultHandler {
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private Person person;
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private ArrayList<Person> persons;
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//当前解析的元素标签
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private String tagName = null;
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/**
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* 当读取到文档开始标志是触发，通常在这里完成一些初始化操作
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*/
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@Override
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public void startDocument() throws SAXException {
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this.persons = new ArrayList<Person>();
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//Log.i("SAX", "读取到文档头,开始解析xml");
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}
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/**
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* 读到一个开始标签时调用,第二个参数为标签名,最后一个参数为属性数组
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*/
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@Override
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public void startElement(String uri, String localName, String qName,
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Attributes attributes) throws SAXException {
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this.person = new Person();
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this.persons.add(this.person);
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person.label = localName;
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if(attributes != null && attributes.getLength() > 0) {
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JSONObject attr = new JSONObject();
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for(int i=0;i<attributes.getLength();i++) {
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attr.put(attributes.getLocalName(i), attributes.getValue(i));
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}
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person.attribute = attr;
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}
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this.tagName = localName;
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}
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/**
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* 读到到内容,第一个参数为字符串内容,后面依次为起始位置与长度
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*/
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@Override
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public void characters(char[] ch, int start, int length) throws SAXException {
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//判断当前标签是否有效
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String data = new String(ch, start, length);
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if (this.tagName != null) {
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if(TextUtils.isEmpty(this.person.content)) {
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this.person.content = data;
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} else {
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this.person.content = this.person.content + data;
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}
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} else {
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//补充遗漏text
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this.person = new Person();
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this.persons.add(this.person);
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person.label = "text";
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person.content = data;
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person = null;
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}
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}
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/**
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* 处理元素结束时触发,这里将对象添加到结合中
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*/
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@Override
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public void endElement(String uri, String localName, String qName) throws SAXException {
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this.person = null;
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//Log.i("SAX", "处理person元素结束~");
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this.tagName = null;
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}
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/**
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* 读取到文档结尾时触发，
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*/
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@Override
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public void endDocument() throws SAXException {
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super.endDocument();
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//Log.i("SAX", "读取到文档尾,xml解析结束");
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}
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//获取persons集合
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public ArrayList<Person> getPersons() {
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return persons;
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}
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}
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