fileconfigxml.java

基于struct结构的jsp

package com.ntsky.xml.bbs;

import java.util.*;
import org.dom4j.*;
import org.dom4j.io.*;
import org.dom4j.dom.*;
import javax.servlet.http.*;
import org.apache.log4j.Logger ;

import com.ntsky.xml.XMLPath;
import com.ntsky.xml.XMLReadWrite;
import com.ntsky.bbs.file.FileConfig;
import com.ntsky.xml.bbs.dto.FileConfigDTO;
/**
 * <p>Title: NtSky Open Source BBS</p>
 * <p>Description: 文件上传类</p>
 * <p>Copyright: Copyright (c) 2004</p>
 * <p>Company: www.fm880.com</p>
 * @author 姚君林
 * @version 1.0
 */

public class FileConfigXML {
    private final static Logger logger = Logger.getLogger(FileConfigXML.class);

    /**
     * 获取xml信息
     * @return Iterator
     */
    public FileConfig getFileXMLInfo(String type){
        FileConfig fileConfig = null;
        System.out.println("select = " + type);
        try {
            Document document = XMLReadWrite.getInstance().read(XMLPath.NTSKY_FILE);
            List list = document.selectNodes("//"+type);
            //枚举所有的节点
            Iterator rs_root = list.iterator();
            System.out.print("是否有xml节点 ：" + String.valueOf(rs_root.hasNext())+"\r\n");
            for (; rs_root.hasNext(); ) {
                fileConfig = new FileConfigDTO();
                //获取节点
                Element element = (Element) rs_root.next();
                setNode(fileConfig, element, "type");
                setNode(fileConfig, element, "size");
                setNode(fileConfig, element, "totalSize");
                setNode(fileConfig, element, "totalNum");
                setNode(fileConfig, element, "path");
            }
        }
        catch (Exception ex) {
            System.out.print(ex.getMessage());
        }
        return fileConfig;
    }

    /**
     * 设置节点的值
     */
    public synchronized void setNode(FileConfig fileConfig ,Element element ,String node ){
        Iterator rs = element.elementIterator(node);
        while (rs.hasNext()) {
            Element elt = (Element) rs.next();
            if ("type".equals(node)) {
                fileConfig.setType(getFileType(elt.getText()));
                System.out.print("type节点的值 ：" + elt.getText());
            }
            if ("size".equals(node)) {
                fileConfig.setSize(Long.valueOf(elt.getText()).longValue());
            }
            if ("totalSize".equals(node)) {
                fileConfig.setTotalSize(Long.valueOf(elt.getText()).longValue());
                System.out.print("totalSize节点的值 ：" + elt.getText());
            }
            if ("totalNum".equals(node)) {
                fileConfig.setTotalNum(Integer.parseInt(elt.getText()));
                System.out.print("totalNum节点的值 ：" + elt.getText());
            }
            if ("path".equals(node)) {
                fileConfig.setPath(elt.getText());
                System.out.print("path节点的值 ：" + elt.getText());
            }
        }
    }
    /**
     * 文件列表
     * @param fileType String
     * @return List
     */
    public List getFileType(String fileType){
        StringTokenizer st = new StringTokenizer(fileType,",");
        List listType = new ArrayList();
        System.out.println(listType +"包含','的元素 : " + st.countTokens() +"\n\r" );
        while(st.hasMoreTokens()){
            listType.add(st.nextToken());
        }
        return listType;
    }

    /**
     * 更新配置文件数据
     */
    public void setConfig(String select,String type,String size,String totalSize,String totalNum,String path){
       try{
           Document document = XMLReadWrite.getInstance().read(XMLPath.NTSKY_FILE);
           List list = document.selectNodes("//ntsky/"+select );
           Iterator rs = list.iterator();
           while(rs.hasNext()){
               Element element=(Element)rs.next();
               upNode(element, "type" ,type);
               upNode(element, "size" ,size);
               upNode(element, "totalSize" ,totalSize);
               upNode(element, "totalNum" ,totalNum);
               upNode(element, "path" ,path);
           }
           XMLReadWrite.getInstance().write(document, XMLPath.NTSKY_FILE);
        }
        catch (Exception ex) {
            System.out.print("写入XML数据发生错误  : " + ex.getMessage());
        }
    }

    /**
     * 更新xml节点
     */
    public synchronized void upNode(Element element ,String node ,String value){
        Iterator rs = element.elementIterator(node);
        while (rs.hasNext()) {
            Element elt = (Element) rs.next();
            if ("type".equals(node)) {
                if("".equals(value)){
                    value = "please enter file type!";
                    elt.setText(value);
                }
                else{
                    elt.setText(value);
                }
            }
            if ("size".equals(node)) {
                if("".equals(value)){
                    value = "0";
                    elt.setText(value);
                }
                else{
                    elt.setText(value);
                }
            }
            if ("totalSize".equals(node)) {
                if("".equals(value)){
                    value = "0";
                    elt.setText(value);
                }
                else{
                    elt.setText(value);
                }
            }
            if ("totalNum".equals(node)) {
                if("".equals(value)){
                    value = "0";
                    elt.setText(value);
                }
                else{
                    elt.setText(value);
                }
            }
            if ("path".equals(node)) {
                if("".equals(value)){
                    value = "please enter file path!";
                    elt.setText(value);
                }
                else{
                    elt.setText(value);
                }
            }
        }
    }
}