operxml.java

操作XML的源代码

package com.ddcc.utility;

/**
 * <p>Title: 操作XML文件</p>
 * <p>Description: 对XML文件进行读、写、修改操作</p>
 * <p>Copyright: Copyright (c) 2003</p>
 * <p>Company: sinosoft</p>
 * <p>CreateDate ：2004-06-15</p>
 * @author baico
 * @version 1.0
 */

import java.util.List;
import java.net.*;
import java.util.*;
import java.io.*;
import org.jdom.*;
import org.jdom.input.*;
import org.jdom.output.*;


public class OperXML {
  private boolean blHasParent = false;
  private String strParentTag = "";
  private String strParentValue = "";
  private Document doc = null;
  private Element root = null;

  /**
   * 默认的构造函数
   */
  public OperXML() {
  }

  /**
   * 带参数的构造函数
   * @param iParentTag 父节点的标签
   * @param iParentValue 父节点的值
   */
  public OperXML(String iParentTag,String iParentValue) {
    this.blHasParent = true;
    this.strParentTag = iParentTag;
    this.strParentValue = iParentValue;
  }

  /**
   * 解析XML文件
   * @param iFileSrc 要解析的XML文件路径
   * @throws IOException
   * @throws JDOMException
   * @throws Exception
   */
  public void parser(String iFileSrc) throws IOException,JDOMException,Exception
  {
    try
    {
      SAXBuilder sb = new SAXBuilder();
      doc = sb.build(new FileInputStream(iFileSrc));
      root = doc.getRootElement();
    }
    catch(IOException ioe)
    {
      throw new IOException("解析不到此文件：" + iFileSrc);
    }
    catch(JDOMException jdome)
    {
      throw jdome;
    }
    catch(Exception e)
    {
      throw e;
    }
  }

  /**
   * 解析XML字符串
   * @param iXMLStr 要解析的XML字符串
   * @throws IOException
   * @throws JDOMException
   * @throws Exception
   */
  public void parserFromXMLString(String iXMLStr) throws IOException,JDOMException,Exception
  {
    try
    {
      SAXBuilder sb = new SAXBuilder();
      doc = sb.build(new StringReader(iXMLStr));
      root = doc.getRootElement();
    }
    catch(IOException ioe)
    {
      throw ioe;
    }
    catch(JDOMException jdome)
    {
      jdome = new JDOMException("不是有效的XML文档!");
      throw jdome;
    }
    catch(Exception e)
    {
      throw e;
    }
  }

  /**
   * 判断是否为XML文件格式
   * @throws JDOMException
   * @throws Exception
   * @return 是/否 boolean
   */
  public boolean isXMLFormat() throws JDOMException,Exception
  {
    boolean blFlag = false;
    try
    {
      blFlag = doc.hasRootElement();
    }
    catch(Exception e)
    {
      throw e;
    }
    return blFlag;
  }

  /**
   * 获取(根节点下)标签为iKeyCode的节点的个数
   * @param iKeyCode 节点标签
   * @return int 节点个数
   * @throws JDOMException
   * @throws Exception
   */
  public int getCountByTag(String iKeyCode) throws JDOMException,Exception
  {
    int iCount = 0;
    List lKeyList = null;
    try
    {
      lKeyList = root.getChildren(iKeyCode);
      if(lKeyList.size()>0)
      {
        iCount = lKeyList.size();
      }
      else
      {
        iCount = 0;
      }
    }
    catch(Exception e)
    {
      throw e;
    }
    return iCount;
  }

  /**
   * 获取(节点iElem下)标签为iKeyCode的节点的个数
   * @param iKeyCode 节点标签
   * @param iElem 节点Element
   * @return int 节点个数
   * @throws JDOMException
   * @throws Exception
   */
  public int getCountByTag(Element iElem,String iKeyCode) throws JDOMException,Exception
  {
    int iCount = 0;
    List lKeyList = null;
    try
    {
      lKeyList = iElem.getChildren(iKeyCode);
      if(lKeyList.size()>0)
      {
        iCount = lKeyList.size();
      }
      else
      {
        iCount = 0;
      }
    }
    catch(Exception e)
    {
      throw e;
    }
    return iCount;
  }

  /**
   * 获取根节点的下级子节点的个数
   * @return int 节点个数
   * @throws JDOMException
   * @throws Exception
   */
  public int getCount() throws JDOMException,Exception
  {
    int iCount = 0;
    List lKeyList = null;
    try
    {
      lKeyList = root.getChildren();
      if(lKeyList.size()>0)
      {
        iCount = lKeyList.size();
      }
      else
      {
        iCount = 0;
      }
    }
    catch(Exception e)
    {
      throw e;
    }
    return iCount;
  }

  /**
   * 获取节点iElem的下级子节点的个数
   * @param iElem 节点Element
   * @return int 节点个数
   * @throws JDOMException
   * @throws Exception
   */
  public int getCount(Element iElem) throws JDOMException,Exception
  {
    int iCount = 0;
    List lKeyList = null;
    try
    {
      lKeyList = iElem.getChildren();
      if(lKeyList.size()>0)
      {
        iCount = lKeyList.size();
      }
      else
      {
        iCount = 0;
      }
    }
    catch(Exception e)
    {
      throw e;
    }
    return iCount;
  }

  /**
   * 获取(根节点下)标签为iKeyCode的所有节点的值
   * @param iKeyCode 节点标签
   * @return String[] 节点的值
   * @throws JDOMException
   * @throws Exception
   */
  public String[] getKeyValues(String iKeyCode) throws JDOMException,Exception
  {
    String[] strArrValue = null;
    List lKeyList = null;
    try
    {
      lKeyList = root.getChildren(iKeyCode);
      if(lKeyList.size()>0)
      {
        strArrValue = new String[lKeyList.size()];
        for(int i=0;i<lKeyList.size();i++)
        {
          Element item = (Element)lKeyList.get(i);
          strArrValue[i] = item.getText();
        }
      }
      else
      {
        throw new Exception("根下没有此节点：" + iKeyCode);
      }
    }
    catch(Exception e)
    {
      throw e;
    }
    return strArrValue;
  }

  /**
   * 获取(节点iElem下)标签为iKeyCode的所有节点的值
   * @param iKeyCode 节点标签
   * @param iElem 节点Element
   * @return String[] 节点的值
   * @throws JDOMException
   * @throws Exception
   */
  public String[] getKeyValues(Element iElem,String iKeyCode) throws JDOMException,Exception
  {
    String[] strArrValue = null;
    List lKeyList = null;
    try
    {
      lKeyList = iElem.getChildren(iKeyCode);
      if(lKeyList.size()>0)
      {
        strArrValue = new String[lKeyList.size()];
        for(int i=0;i<lKeyList.size();i++)
        {
          Element item = (Element)lKeyList.get(i);
          strArrValue[i] = item.getText();
        }
      }
      else
      {
        throw new Exception("节点" + iElem.getName() + "下没有此子节点：" + iKeyCode);
      }
    }
    catch(Exception e)
    {
      throw e;
    }
    return strArrValue;
  }

  /**
   * 获取(根节点下)标签为iKeyCode的第一个节点的值
   * @param iKeyCode 节点标签
   * @return String 第一个节点的值
   * @throws JDOMException
   * @throws Exception
   */
  public String getKeyValue(String iKeyCode) throws JDOMException,Exception
  {
    String strValue = null;
    List lKeyList = null;
    try
    {
      lKeyList = root.getChildren(iKeyCode);
      if(lKeyList.size()>0)
      {
        Element item = (Element)lKeyList.get(0);
        strValue = item.getText();
      }
      else
      {
        throw new Exception("根下没有此节点：" + iKeyCode);
      }
    }
    catch(Exception e)
    {
      throw e;
    }
    return strValue;
  }

  /**
   * 获取(根节点下)标签为iKeyCode的第index+1个节点的值
   * @param iKeyCode 节点标签
   * @param index 节点的下标
   * @return String 第index+1个节点的值
   * @throws JDOMException
   * @throws Exception
   */
  public String getKeyValue(String iKeyCode,int index) throws JDOMException,Exception
  {
    String strValue = null;
    List lKeyList = null;
    try
    {
      lKeyList = root.getChildren(iKeyCode);
      if(lKeyList.size()>0)
      {
        if(index>=lKeyList.size())
          throw new Exception("下标越界：" + index);
        else
        {
          Element item = (Element)lKeyList.get(index);
          strValue = item.getText();
        }
      }
      else
      {
        throw new Exception("根下没有此节点：" + iKeyCode);
      }
    }
    catch(Exception e)
    {
      throw e;
    }
    return strValue;
  }

  /**
   * 获取(节点iElem下)标签为iKeyCode的第一个节点的值
   * @param iKeyCode 节点标签
   * @param iElem 节点Element
   * @return String 第一个节点的值
   * @throws JDOMException
   * @throws Exception
   */
  public String getKeyValue(Element iElem,String iKeyCode) throws JDOMException,Exception
  {
    String strValue = null;
    List lKeyList = null;
    try
    {
      lKeyList = iElem.getChildren(iKeyCode);
      if(lKeyList.size()>0)
      {
        Element item = (Element)lKeyList.get(0);
        strValue = item.getText();
      }