Question

java xml格式字符串解析

String a =“
<statusPacks>
<statusPack>
<id>1</id>
<destaddr>11</destaddr>
<status>111</status>
</statusPack>
<statusPack>
<id>2</id>
<destaddr>22</destaddr>
<status>222</status>
</statusPack>
</statusPacks>
”;要怎么循环取出id，destaddr，status的值赋值给a,b,c 三个变量

Answer 1

package test;

import java.io.File;
import java.io.IOException;
import java.util.List;

import org.jdom2.Document;
import org.jdom2.Element;
import org.jdom2.JDOMException;
import org.jdom2.input.SAXBuilder;

/**
* 使用JDOM实现XML解析，jar包：jdom-2.0.5.jar
* @author zhurongfu
*
*/
public class JdomTest {
public static void parseXml (File file) throws JDOMException, IOException{

SAXBuilder sax = new SAXBuilder();
Document doc = sax.build(file);
Element root = doc.getRootElement();

parseElement(root);
}

private static void parseElement(Element element) {
// TODO Auto-generated method stub
List<Element> elementList = element.getChildren();
for(Element e:elementList){
if(e.getChildren().size() > 0){
parseElement(e);
}else {
String elementName = e.getName();
if("id".equals(elementName)){
System.out.println("a的值为："+e.getValue());
}else if("destaddr".equals(elementName)) {
System.out.println("b的值为："+e.getValue());
}else if("status".equals(elementName)){
System.out.println("c的值为："+e.getValue());
}
}
}
}

public static void main(String[] args) throws JDOMException, IOException {
// TODO Auto-generated method stub
File file = new File("test.xml");
parseXml(file);
}

}

Answer 2

自带的dom就可以

Answer 3

SAX,DOM用这两种解析方法都可以，可以去网上载一个工具包

Answer 4

用dom4j按节点去找，很亏搞定！