XMLParse.java
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package com.example.demo.util.XML;
import ch.qos.logback.core.joran.spi.XMLUtil;
import com.example.demo.DemoApplication;
import org.jdom.Document;
import org.jdom.Element;
import org.jdom.JDOMException;
import org.jdom.input.SAXBuilder;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.xml.sax.InputSource;
import java.io.IOException;
import java.io.StringReader;
import java.util.*;
public class XMLParse {
private static String xmlString;
private static String[] nodes;
private static Document document;
private static SAXBuilder builder;
private static Element root;
private static LinkedList<SubNode> listNode;
private static StringReader xmlReader;
private static InputSource xmlSource;
private String value;
public XMLParse() {
}
Logger logger = LoggerFactory.getLogger(DemoApplication.class);
/**
*
* @param xmlString xml字符窜
* @param xmlNodePath 节点参数(例如：/root/head/type)
*/
public XMLParse(String xmlString, String xmlNodePath) {
this.xmlString = xmlString;
this.nodes = xmlNodePath.split("/");
this.builder = new SAXBuilder();
this.root = null;
this.listNode = new LinkedList();
this.value = "";
this.document =new Document();
}
/**
* 取一对多关系的节点下的所有子节点的属性名 和 值
* @return
* @throws Exception
*/
public List<Map> getNodeValuesFromXmlString() throws Exception{
try {
this.xmlReader = new StringReader(this.xmlString);
this.xmlSource = new InputSource(this.xmlReader);
this.document = this.builder.build(xmlSource);
List<Map> maps = new ArrayList<Map>();
for(int i = 1; i < nodes.length; ++i) {
SubNode snode;
if (i >1) {
snode = (SubNode)listNode.getLast();
List<Element> eList = snode.getElement().getChildren(nodes[i]); //这里等于3的时候得到associatedPary节点 两个，下面应该循环这两个element，取他下面的所有children
if (eList != null && eList.size() > 0) {
SubNode s1 = new SubNode((Element)eList.get(0));
listNode.add(s1);
}
if(eList != null && eList.size() > 1 && i==nodes.length-1){ //只有进入的最尾节点的时候再循环去取同名下的一对多的ELEMENT所有子节点
for (Element element : eList){
List<Element> elements=element.getChildren();
Map<String,String> childMap = new HashMap<String, String>(); //用map存储每个值
for (Element childElements : elements){
String childName = childElements.getName();
String childValue = childElements.getText();
childMap.put(childName,childValue);
logger.debug(childValue);
}
maps.add(childMap);
}
}
} else if (1 == i) {
root = document.getRootElement();
snode = new SubNode(root);
listNode.add(snode);
}
}
return maps;
} catch (Exception var17) {
var17.printStackTrace();
throw var17;
} finally {
listNode.clear();
document = null;
root = null;
builder = null;
nodes = null;
}
}
/***
* 获取单一节点的值
* @return 单一节点值
* @throws Exception
*/
public final String getNodeValueFromXmlString() throws Exception {
try {
this.xmlReader = new StringReader(this.xmlString);
this.xmlSource = new InputSource(this.xmlReader);
this.document = this.builder.build(xmlSource);
for(int i = 1; i < nodes.length; ++i) {
SubNode snode;
if (i > 1) {
snode = (SubNode)listNode.getLast();
List<Element> eList = snode.getElement().getChildren(nodes[i]);
if (eList != null && eList.size() > 0) {
SubNode s1 = new SubNode((Element)eList.get(0));
listNode.add(s1);
}
} else if (1 == i) {
root = document.getRootElement();
snode = new SubNode(root);
listNode.add(snode);
}
}
SubNode n = (SubNode)listNode.getLast();
value = n.getElement().getText();
n = null;
return value;
} catch (Exception var17) {
var17.printStackTrace();
throw var17;
} finally {
listNode.clear();
document = null;
root = null;
builder = null;
nodes = null;
}
}
public static final String getNodeAttribute(String xmlFile, String xmlNodePath, String attributeName, String defaultValue) {
String[] nodes = xmlNodePath.split("/");
new Document();
SAXBuilder builder = new SAXBuilder();
Element root = null;
LinkedList<SubNode> listNode = new LinkedList();
String value = "";
Document document;
try {
document = builder.build(xmlFile);
for(int i = 1; i < nodes.length; ++i) {
SubNode snode;
if (i > 1) {
snode = (SubNode)listNode.getLast();
List<Element> eList = snode.getElement().getChildren(nodes[i]);
if (eList != null && eList.size() > 0) {
SubNode s1 = new SubNode((Element)eList.get(0));
listNode.add(s1);
}
} else if (1 == i) {
root = document.getRootElement();
snode = new SubNode(root);
listNode.add(snode);
}
}
SubNode n = (SubNode)listNode.getLast();
value = n.getElement().getAttributeValue(attributeName, defaultValue);
n = null;
} catch (JDOMException var18) {
var18.printStackTrace();
} catch (IOException var19) {
var19.printStackTrace();
} finally {
listNode.clear();
document = null;
root = null;
builder = null;
nodes = null;
}
System.out.println("key=" + xmlNodePath + " node attrivte value=" + value);
return value;
}
}