readerxml.java

短信开发用于文件交换处理转发的类模块

package com.pub.util;

import org.jdom.input.SAXBuilder;
import org.jdom.Document;
import org.jdom.Element;
import org.jdom.xpath.XPath;

import java.util.ArrayList;
import java.util.List;
import org.apache.log4j.Logger;
import java.util.*;

public class ReaderXml {

    static private Logger log = Logger.getLogger(ReaderXml.class);

    public static Document loadDocument(String filename) throws Exception {

        SAXBuilder sb = new SAXBuilder();
        Document doc = sb.build(filename);
        return doc;
    }

    public static Element loadSelectElement(String filename, String xpath)
            throws Exception {

        Document doc = loadDocument(filename);
        Element root = doc.getRootElement();
        List list = XPath.selectNodes(root, xpath);
        Iterator iter = list.iterator();
        if (iter.hasNext()) {
            return (Element) iter.next();
        } else {
            return null;
        }
    }

    public static Element loadElement(String filename, String xpath)
            throws Exception {

        Document doc = loadDocument(filename);
        Element root = doc.getRootElement();
        Element element = (Element) XPath.selectSingleNode(root, xpath);
        return element;
    }

    public static Element loadElement(Document doc, String xpath)
            throws Exception {

        Element root = doc.getRootElement();
        Element element = (Element) XPath.selectSingleNode(root, xpath);
        return element;
    }

    public static List loadListElement(String filename, String xpath)
            throws Exception {

        Document doc = loadDocument(filename);
        Element root = doc.getRootElement();
        List list = XPath.selectNodes(root, xpath);
        return list;
    }

    public static List loadListElement(Document doc, String xpath)
            throws Exception {

        Element root = doc.getRootElement();
        List list = XPath.selectNodes(root, xpath);
        return list;
    }

    public static boolean getAttributeBoolean(Element element, String name,
            boolean def) {
        boolean b = false;
        try {
            if (element.getAttributeValue(name).trim().equalsIgnoreCase("true")) {
                b = true;
            } else {
                b = false;
            }
        } catch (Exception ex) {
            b = def;
        }
        return b;
    }

    public static int getAttributeInteger(Element element, String name, int def) {
        int i = 0;
        try {
            i = Integer.parseInt(element.getAttributeValue(name).trim());
        } catch (Exception ex) {
            i = def;
        }
        return i;
    }

    public static Long getAttributeLong(Element element, String name, long def) {
        long l = 0;
        try {
            l = Long.parseLong(element.getAttributeValue(name).trim());
        } catch (Exception ex) {
            l = def;
        }
        return l;
    }

    public static String getAttributeString(Element element, String name,
            String def) {
        String s = "";
        try {
            s = element.getAttributeValue(name).trim();
        } catch (Exception ex) {
            s = def;
        }
        return s;
    }

    public static boolean getChildTextBoolean(Element element, String name,
            boolean def) {
        boolean b = false;
        try {
            if (element.getChildText(name).trim().equalsIgnoreCase("true")) {
                b = true;
            } else {
                b = false;
            }
        } catch (Exception ex) {
            b = def;
        }
        return b;
    }

    public static int getChildTextInteger(Element element, String name, int def) {
        int i = 0;
        try {
            i = Integer.parseInt(element.getChildText(name).trim());
        } catch (Exception ex) {
            ex.printStackTrace();
            i = def;
        }
        return i;
    }

    public static Long getChildTextLong(Element element, String name, long def) {
        long l = 0;
        try {
            l = Long.parseLong(element.getChildText(name).trim());
        } catch (Exception ex) {
            l = def;
        }
        return l;
    }

    public static String getChildTextString(Element element, String name,
            String def) {
        String s = "";
        try {
            s = element.getChildText(name).trim();
        } catch (Exception ex) {
            s = def;
        }
        return s;
    }

    public static List getChildTextList(Element element, String name, List def) {
        List l = new ArrayList();
        try {
            Element element1 = element.getChild(name);
            l.add(element1.getTextTrim());
        } catch (Exception e) {
            l = def;
        }
        return l;
    }

    public static void main(String[] args) {
        ReaderXml readerxml = new ReaderXml();
        
        try {
        	Element e = ReaderXml.loadElement("./conf/GatewayConfig.xml","//gateway[@gatewayID=\"" + "1" +
			"\"]");
        	System.out.println(e);
		} catch (Exception e) {
			e.printStackTrace();
		}

        
        
    }
}