xml file reading and writing examples

import java.io.File;

import java.io.FileOutputStream;

import java.io.IOException;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.Iterator;

import java.util.List;

import java.util.Map;

import java.util.logging.Level;

import java.util.logging.Logger;

import org.jdom.Document;

import org.jdom.Element;

import org.jdom.JDOMException;

import org.jdom.input.SAXBuilder;

import org.jdom.output.Format;

import org.jdom.output.XMLOutputter;

import org.lt.cj.config.entities.ConfigModel;

import org.lt.cj.config.entities.TMallConfigModel;

import org.lt.cj.core.Seed;

public class XMLConfigWriter {

    /*创建淘宝商城的配置文件*/

    public Document buildUpMallDocument(TMallConfigModel missionConfig) throws MissionConfigException, EnterUrlsException {

        if (missionConfig == null) {

            throw new MissionConfigException();

        } else if (missionConfig.getSeeds().isEmpty()) {

            return null;

        }

        // Create the root element

        Element rootElement = new Element("website");

        /* 设置网站属性 */

        /* 设置网站名称 */

        rootElement.setAttribute("name", missionConfig.getWebsiteName());

        /*设置网站地址*/

        rootElement.setAttribute("url", missionConfig.getWebsiteUrl());

        //添加任务名称

        Element taskElement = new Element("taskName");

        taskElement.addContent(missionConfig.getTaskName());

        rootElement.addContent(taskElement);

        //构造种子列表节点

        Element seeds = new Element("seeds");

        for (int i = 0; i < missionConfig.getSeeds().size(); i++) {

            Element seedElement = new Element("seed");

            Element seedNameElement = new Element("seedName");

            seedNameElement.addContent(missionConfig.getSeeds().get(i).getSeedName());

            Element seedUrlElement = new Element("seedUrl");

            seedUrlElement.addContent(missionConfig.getSeeds().get(i).getUrl());

            Element seedSortNameElement = new Element("sortName");

            seedSortNameElement.addContent(missionConfig.getSeeds().get(i).getSortName());

            seedElement.addContent(seedSortNameElement);

            seedElement.addContent(seedNameElement);

            seedElement.addContent(seedUrlElement);

            seeds.addContent(seedElement);

        }

        rootElement.addContent(seeds);

        //定义匹配的要采集的URL链接fitUrl的节点

        Element fiturls = new Element("fitUrls");

        for (int i = 0; i < missionConfig.getFitUrlRegs().size(); i++) {

            Element fitUrl = new Element("fit_url");

            fitUrl.addContent(missionConfig.getFitUrlRegs().get(i));

            fiturls.addContent(fitUrl);

        }

        rootElement.addContent(fiturls);//添加到根节点

        //并发工作线程数

        Element workingThreadsElement = new Element("workingThreads");

        workingThreadsElement.addContent("" + missionConfig.getWorkingThreads());

        rootElement.addContent(workingThreadsElement);//添加到根节点

        //定义页面编码节点

        Element pageEncodingElement = new Element("pageEncoding");

        pageEncodingElement.addContent(missionConfig.getPageEncoding());

        rootElement.addContent(pageEncodingElement);//添加到根节点

        //定义下载图片控制标志节点

        Element dwdPhoFlagElement = new Element("dwdPhoFlag");

        dwdPhoFlagElement.addContent(missionConfig.getDwdPhoFlag());

        rootElement.addContent(dwdPhoFlagElement);

        //定义原语言节点

        Element oriLan = new Element("orien_lan");

        oriLan.addContent(missionConfig.getOrigLanguage());

        Element transLan = new Element("trans_lan");

        transLan.addContent(missionConfig.getTranLanguage());

        rootElement.addContent(oriLan);//添加到根节点

        rootElement.addContent(transLan);//添加到根节点

        //定义匹配抓取信息的产品页面Url节点

        Element pageUrlRegs = new Element("pageUrlRegs");

        for (int i = 0; i < missionConfig.getPageReg().size(); i++) {

            Element pageUrl = new Element("pageUrl");

            pageUrl.addContent(missionConfig.getFitUrlRegs().get(i));

            pageUrlRegs.addContent(pageUrl);

        }

        rootElement.addContent(pageUrlRegs);//添加到根节点

        Map<String, List<String>> map = missionConfig.getEntityReg();

        List<String> list = null;

        Element pathElements = new Element("pathElements");

        //直接循环算啦

        //=====================================

        Iterator iter = map.entrySet().iterator();

        while (iter.hasNext()) {

            Map.Entry e = (Map.Entry) iter.next();

            Element element = new Element(e.getKey() + "");

            map = missionConfig.getEntityReg();

            list = map.get(e.getKey() + "");

            for (int i = 0; i < list.size(); i++) {

                Element path = new Element("path");

                path.addContent(list.get(i));

                element.addContent(path);

            }

            pathElements.addContent(element);

        }

        rootElement.addContent(pathElements);

        /*   =====================================================   */

        Document myDocument = new Document(rootElement);

        return myDocument;

    }

    /* 创建文档文件 */

    public void createConfigFile(Document document, String filepath) {

        try {

            /* 定义XML输出器 */

            XMLOutputter xmlOutPutter = new XMLOutputter();

            xmlOutPutter.setFormat(Format.getPrettyFormat());

            File file = new File(filepath);

            if (!file.exists()) {

                if (file.createNewFile()) {

                    FileOutputStream fileOutputStream = new FileOutputStream(filepath);

                    xmlOutPutter.output(document, fileOutputStream);

                    return;

                }

            }

            FileOutputStream fileOutputStream = new FileOutputStream(filepath);

            xmlOutPutter.output(document, fileOutputStream);

        } catch (java.io.IOException e) {

            e.printStackTrace();

        }

    }

    /* 重写文件 */

    public void saveTask(String filePath, ConfigModel configModel) {

        try {

            TMallConfigModel tMallConfigModel = (TMallConfigModel) configModel;

            Document document = buildUpMallDocument(tMallConfigModel);

            if (document != null) {

                createConfigFile(document, filePath);

            }

        } catch (MissionConfigException ex) {

            Logger.getLogger(XMLConfigWriter.class.getName()).log(Level.SEVERE, null, ex);

        } catch (EnterUrlsException ex) {

            Logger.getLogger(XMLConfigWriter.class.getName()).log(Level.SEVERE, null, ex);

        }

    }

    //* xml文件读取方法 */

    public TMallConfigModel readMallDocument(String filePath) {

        TMallConfigModel model = new TMallConfigModel();

        SAXBuilder sb = new SAXBuilder();

        try {

            //读取基本配置信息

            Document doc = sb.build(filePath);           //构造文档对象

            Element root = doc.getRootElement();                     //获取根元素

            String websiteName = root.getAttributeValue("name");     //获取网站名称

            String websiteAddr = root.getAttributeValue("url");      //获取网站地址

            model.setWebsiteName(websiteName);                       //设置网站名称

            model.setWebsiteUrl(websiteAddr);                        //设置网站地址

            Element taskNameElement = root.getChild("taskName");     //获取任务名内容

            String taskName = taskNameElement.getText();

            model.setTaskName(taskName);

            //获取入口种子列表

            List<Seed> seedList = new ArrayList();

            Element seedsElement = root.getChild("seeds");

            List list = seedsElement.getChildren();

            for (int i = 0; i < list.size(); i++) {

                Element element = (Element) seedsElement.getChildren().get(i);

                Seed seed = new Seed();

                Element seedNameElement = element.getChild("seedName");

                Element seedUrlElement = element.getChild("seedUrl");

                Element seedSortNameElement = element.getChild("sortName");

                seed.setSeedName(seedNameElement.getTextTrim());

                seed.setUrl(seedUrlElement.getTextTrim());

                seed.setSortName(seedSortNameElement.getTextTrim());

                Element parentSeedElement = element.getChild("parentSeed");

                if (parentSeedElement != null) {

                    Seed parentSeed = new Seed();

                    Element parentSeedNameElement = parentSeedElement.getChild("seedName");

                    Element parentSeedUrlElement = parentSeedElement.getChild("seedUrl");

                    Element parentSeedSortNameElement = parentSeedElement.getChild("sortName");

                    parentSeed.setSeedName(parentSeedNameElement.getText());

                    parentSeed.setUrl(parentSeedUrlElement.getTextTrim());

                    parentSeed.setSortName(parentSeedSortNameElement.getTextTrim());

                }

                seedList.add(seed);

            }

            model.setSeeds(seedList);

            //获取匹配的要抽取的页面的特定部分内容

            list = new ArrayList();

            Element extractHtmlElement = root.getChild("extractHtml");

            if (extractHtmlElement != null) {

                for (int i = 0; i < extractHtmlElement.getChildren().size(); i++) {

                    Element element = (Element) extractHtmlElement.getChildren().get(i);

                    list.add(element.getText());

                }

            }

            model.setExtractHtmlReg(list);

            //获取匹配URLs

            list = new ArrayList();

            Element fitUrlsElement = root.getChild("fitUrls");

            for (int i = 0; i < fitUrlsElement.getChildren().size(); i++) {

                Element element = (Element) fitUrlsElement.getChildren().get(i);

                list.add(element.getText());

            }

            model.setFitUrlRegs(list);

            //获取线程数量

            Element workingThreadsElement = root.getChild("workingThreads");

            String workingCount = workingThreadsElement.getText();

            model.setWorkingThreads(Integer.valueOf(workingCount));

            //获取解析编码

            Element pageEncodingElement = root.getChild("pageEncoding");

            String pageEncoding = pageEncodingElement.getText();

            model.setPageEncoding(pageEncoding);

            //获取是否下载图片的标志

            Element dwdPhoFlagElement = root.getChild("dwdPhoFlag");

            String dphoFlag = dwdPhoFlagElement.getText();

            model.setDwdPhoFlag(dphoFlag);

            //获取语言

            Element orien_lanElement = root.getChild("orien_lan");

            String orien = orien_lanElement.getText();

            model.setOrigLanguage(orien);

            Element trans_lanElement = root.getChild("trans_lan");

            String trans_lan = trans_lanElement.getText();

            model.setTranLanguage(trans_lan);

            //获取URL正则匹配

            Element pageUrlRegsElement = root.getChild("pageUrlRegs");

            list = new ArrayList();

            for (int i = 0; i < pageUrlRegsElement.getChildren().size(); i++) {

                Element element = (Element) pageUrlRegsElement.getChildren().get(i);

                list.add(element.getText());

            }

            model.setPageReg(list);

            //获取余下的匹配规则

            Map<String, List<String>> entityReg = new HashMap();

            Element pathElements = root.getChild("pathElements");

            for (int i = 0; i < pathElements.getChildren().size(); i++) {

                Element element = (Element) pathElements.getChildren().get(i);

                List<String> pathList = new ArrayList();

                String mapName = element.getName();

                for (int j = 0; j < element.getChildren().size(); j++) {

                    Element childElement = (Element) element.getChildren().get(j);

                    pathList.add(childElement.getText());

                }

                entityReg.put(mapName, pathList);

            }

            model.setEntityReg(entityReg);

        } catch (JDOMException ex) {

            Logger.getLogger(XMLConfigWriter.class.getName()).log(Level.SEVERE, null, ex);

        } catch (IOException ex) {

            Logger.getLogger(XMLConfigWriter.class.getName()).log(Level.SEVERE, null, ex);

        }

        return model;

    }

}

<?xml version="1.0" encoding="UTF-8"?>

<website name="taobao_mall" url="http://www.tmall.com/?ver=2011b">

  <taskName>caiji_tmall_精品男装_T恤</taskName>

  <seeds>

    <seed>

      <sortName>精品男装/T恤</sortName>

      <seedName>精品男装/T恤</seedName>

      <seedUrl>http://item.tmall.com/item.htm?id=9351702393</seedUrl>

    </seed>

  </seeds>

  <extractHtml>

      <path>div class="list item-view item-miniView"</path>

  </extractHtml>

  <fitUrls>

    <fit_url>http://www\.tmall\.com/go/act/tmall/iwanttobuy\.php.*</fit_url>

    <fit_url>http://list\.tmall\.com/.*</fit_url>

    <fit_url>http://item\.tmall\.com/item\.htm.*</fit_url>

  </fitUrls>

  <workingThreads>1</workingThreads>

  <pageEncoding>UTF-8</pageEncoding>

  <orien_lan>zh</orien_lan>

  <trans_lan>en</trans_lan>

  <pageUrlRegs>

    <pageUrl>http://www\.tmall\.com/go/act/tmall/iwanttobuy\.php.*</pageUrl>

  </pageUrlRegs>

  <pathElements>

    <commnents>

      <path>div class="tb-box tshop-psm tshop-psm-bdetailtabl" id="J_Detail"</path>

      <path>div id="reviews" class="J_DetailSection" data-reviewApi</path>

    </commnents>

    <shopAddr>

      <path>div class="clearfix tb-header-nav"</path>

      <path>div class="nav"</path>

      <path>a href</path>

    </shopAddr>

    <productDetail>

      <path>div id="attributes" class="attributes</path>

      <path>ul class="attributes-list</path>

      <path>li</path>

    </productDetail>

    <photosPath>

      <path>div class="tb-detail-bd tb-clear"</path>

      <path>div class="tb-gallery"</path>

      <path>div class="tb-booth tb-pic tb-s310"</path>

      <path>img id="J_ImgBooth" src</path>

    </photosPath>

    <category>

      <path>ul class="mallCrumbs-nav" id="J_crumbs"</path>

      <path>li class="mallCrumbs-nav-item"</path>

    </category>

    <countSold>

      <path>div class="tb-detail-bd tb-clear"</path>

      <path>ul class="tb-meta"</path>

      <path>li class="tb-sold-out tb-clear"</path>

    </countSold>

    <shopInfo>

      <path>div class="shop-intro"</path>

      <path>div class="extend"</path>

      <path>li</path>

    </shopInfo>

    <despPhos>

      <path>script</path>

    </despPhos>

    <thumbPhosPath>

      <path>div class="tb-detail-bd tb-clear"</path>

      <path>div class="tb-gallery"</path>

      <path>ul id="J_UlThumb" class="tb-thumb tb-clearfix"</path>

      <path>img src=</path>

    </thumbPhosPath>

    <productName>

      <path>div class="layout grid-s5m0 "</path>

      <path>div class="tb-detail-hd"</path>

      <path>a target="_blank" href=</path>

    </productName>

    <productPrice>

      <path>div class="tb-detail-bd tb-clear"</path>

      <path>ul class="tb-meta"</path>

      <path>li id="J_StrPriceModBox" class="tb-detail-price tb-clearfix"</path>

    </productPrice>

  </pathElements>

</website>