报文（xml格式）解析，拼接

最新推荐文章于 2025-05-07 15:37:12 发布

da鹏鹏

最新推荐文章于 2025-05-07 15:37:12 发布

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文章标签： xml java

本文链接：https://blog.youkuaiyun.com/qq_37090962/article/details/83059340

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需要在pom.xml增加这个jar

package jnhx;

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

import org.apache.log4j.Logger;
import org.jdom.Document;
import org.jdom.Element;
import org.jdom.JDOMException;
import org.jdom.input.SAXBuilder;
import org.jdom.xpath.XPath;
import org.xml.sax.InputSource;

public class XpathOperater {
	
	protected Logger log = Logger.getLogger(XpathOperater.class);
	private Document document;
	private String xPath;

	public XpathOperater(String xml) {
		String trimxml = xml.trim();
		StringReader rd = new StringReader(trimxml);
		InputSource is = new InputSource(rd);
		SAXBuilder sb = new SAXBuilder();

		try {
			document = sb.build(is);
		} catch (Exception e) {
			throw new RuntimeException(e);
		}
	}

	public XpathOperater(File file) {
		SAXBuilder sb = new SAXBuilder();

		try {
			document = sb.build(file);
		} catch (Exception e) {
			throw new RuntimeException(e);
		}
	}

	public Document getDocument() {
		return document;
	}

	public void setDocument(Document document) {
		this.document = document;
	}

	public String getXPath() {

		return xPath;
	}

	public void setXPath(String path) {
		this.xPath = path;

	}

	public String getNodeValue() {
		try {

			XPath xp = XPath.newInstance(this.xPath);

			Element ee = (Element) xp.selectSingleNode(document
					.getRootElement());
			return ee.getTextTrim();
		} catch (Exception e) {
			log.info("没有" + this.xPath + "节点");
			return "";
		}

	}

	@SuppressWarnings("unchecked")
	public String[] getNodeValuesByString() {
		try {
			XPath xp = XPath.newInstance(xPath);
			List<Element> list = (List<Element>) xp.selectNodes(document
					.getRootElement());

			String[] values = new String[list.size()];
			int i = 0;
			for (Element e : list) {
				values[i] = e.getTextTrim();
				i++;
			}
			return values;
		} catch (JDOMException e) {
			throw new RuntimeException(e);
		}
	}

	@SuppressWarnings("unchecked")
	public Double[] getNodeValuesByDouble() {
		try {
			XPath xp = XPath.newInstance(xPath);
			List<Element> list = (List<Element>) xp.selectNodes(document
					.getRootElement());

			Double[] values = new Double[list.size()];
			int i = 0;
			for (Element e : list) {
				values[i] = Double.parseDouble(e.getTextTrim());
				i++;
			}
			return values;
		} catch (JDOMException e) {
			throw new RuntimeException(e);
		}
	}

	@SuppressWarnings("unchecked")
	public Integer[] getNodeValuesByInt() {
		try {
			XPath xp = XPath.newInstance(xPath);
			List<Element> list = (List<Element>) xp.selectNodes(document
					.getRootElement());

			Integer[] values = new Integer[list.size()];
			int i = 0;
			for (Element e : list) {
				values[i] = Integer.parseInt(e.getTextTrim());
				i++;
			}
			return values;
		} catch (JDOMException e) {
			throw new RuntimeException(e);
		}
	}

	@SuppressWarnings("unchecked")
	public List<Element> getNodes() {
		try {
			XPath xp = XPath.newInstance(xPath);

			List<Element> list = (List<Element>) xp.selectNodes(document
					.getRootElement());
			return list;

		} catch (JDOMException e) {
			throw new RuntimeException(e);
		}
	}

	public Element getNode() {
		try {
			XPath xp = XPath.newInstance(xPath);

			Element el = (Element) xp.selectSingleNode(document
					.getRootElement());
			return el;

		} catch (JDOMException e) {
			throw new RuntimeException(e);
		}
	}

}

测试方法：

package com.skysz.text;

public class TextXml {

    public static void main(String[] args) {
        
		//获取单个对象方法
		XpathOperater xml = new XpathOperater("<response><head><tradeTime>2017-01-12</tradeTime></head><body><map><name>大鹏</name><age>20</age><sex>男</sex></map></body></response>");
		
		xml.setXPath("/response/head/tradeTime");
		String name = xml.getNodeValue();
		
		System.out.println(name);



        //获取list对象方法
        XpathOperater xp = new XpathOperater("<response><head><tradeTime>2017-01-12</tradeTime></head><body><List><map><name>大鹏</name><age>20</age><sex>男</sex></map><map><name>大鹏2</name><age>202</age><sex>男2</sex></map></List></body></response>");
		xp.setXPath("/response/body/List/map");
		
		List<Element> els = xp.getNodes();
		for (Element txel : els) {
			String name_ = txel.getChildTextTrim("name");// 用户名
			String age_ = txel.getChildTextTrim("age");// 年龄
			String sex_ = txel.getChildTextTrim("sex");// 性别
			
			System.out.println("用户名：" + name_);
			System.out.println("年龄：" + age_);
			System.out.println("性别：" + sex_);
		}
	
}