日期:2014-05-16  浏览次数:21096 次

Apache POI组件使用eventusermodel模式读取Excel文档内容
package com.test;

import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.util.LinkedList;
import java.util.List;

import org.apache.commons.lang.StringUtils;
import org.apache.poi.openxml4j.opc.OPCPackage;
import org.apache.poi.openxml4j.opc.PackageAccess;
import org.apache.poi.ss.usermodel.BuiltinFormats;
import org.apache.poi.ss.usermodel.DataFormatter;
import org.apache.poi.xssf.eventusermodel.ReadOnlySharedStringsTable;
import org.apache.poi.xssf.eventusermodel.XSSFReader;
import org.apache.poi.xssf.model.StylesTable;
import org.apache.poi.xssf.usermodel.XSSFCellStyle;
import org.apache.poi.xssf.usermodel.XSSFRichTextString;
import org.xml.sax.Attributes;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.DefaultHandler;
import org.xml.sax.helpers.XMLReaderFactory;

public class Test {
	
	public static void main(String[] args) {
		long a=System.currentTimeMillis();
		
		ExecThread thread = new ExecThread();
		thread.start();
		
		try {
			thread.join();
		} catch (InterruptedException e) {
			e.printStackTrace();
		}
		
		System.out.println("Main ... "+Thread.currentThread().getName());
		
		System.out.println("执行耗时 :"+(System.currentTimeMillis()-a)/1000f+" 秒 ");
	}
	
	public static class ExecThread extends Thread{
		
		public ExecThread(){}

		/* (non-Javadoc)
		 * @see java.lang.Thread#run()
		 */
		@Override
		public void run() {
			try {
				FileWriter fileWriter = new FileWriter("D:/test-out.txt");
				String excelPath = "D:/test.xlsx";
				new ExcelHandler(fileWriter,excelPath,"1","").start();
				System.out.println("ExecThread ... "+Thread.currentThread().getName());
			} catch (IOException e) {
				e.printStackTrace();
			}
			
		}
		
	}
	
	public static class ExcelHandler extends DefaultHandler{
		private final String excelPath;
		private final String sheetIndex;
		private final String nullString;
		
		/**
	     * 从<c />标签得到的单元格格式,获取当前单元格数值需要用到
	     */
	    private enum XSSFDataType {
	        BOOL,
	        ERROR,
	        FORMULA,
	        INLINESTR,
	        SSTINDEX,
	        NUMBER,
	    }
		
		private XSSFReader xssfReader;
		private ReadOnlySharedStringsTable sst;
		private StylesTable stylesTable;
		
		private boolean vIsOpen = false;
		private StringBuffer value = new StringBuffer();
		protected XSSFDataType nextDataType;
		// 当前遍历的Excel单元格列索引
		protected int thisColumnIndex = -1;
	    // The last column printed to the output stream
	    protected int lastColumnIndex = -1;
	    protected int maxColumnCount = -1;
	    protected int formatIndex;
	    protected String formatString;
	    private final DataFormatter formatter = new DataFormatter();
		
		private List<String> rowDatas = null;
		
		
	    private String targetFile;
		
		private FileWriter writer;
		public ExcelHandler(String targetFile, String excelPath, 
				String sheetIndex, String nullString){
//			this.writer = writer;
			this.targetFile = targetFile;
			this.excelPath = excelPath;
			this.sheetIndex = sheetIndex;
			this.nullString = nullString;
		}
		
		public ExcelHandler(FileWriter writer, String excelPath, 
				String sheetIndex, String nullString){
			this.writer = writer;
			this.excelPath = excelPath;
			this.sheetIndex = sheetIndex;
			this.nullString = nullString;
		}
		
		/**
		 * 初始化
		 */
		public void start(){
			try {
				OPCPackage op = OPCPackage.open(this.excelPath,PackageAccess.READ);
				this.xssfReader = new XSSFReader(op);
				this.sst = new ReadOnlySharedStringsTable(op);
				this.stylesTable = xssfReader.getStylesTable();
				
				// 开始解析
				parseXmlContent(new InputSource(getOneSheetStream(sheetIndex)));
			} catch (Exception e) {
				e.printStackTrace();
			}
			
		}
		
		
		
		/* (non-Javadoc)
		 * @see org.xml.sax.helpers.DefaultHandler#startDocum