package com.report;
import java.io.ByteArrayOutputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;

import org.apache.poi.hwpf.HWPFDocument;
import org.apache.poi.hwpf.usermodel.Paragraph;
import org.apache.poi.hwpf.usermodel.Range;
import org.apache.poi.hwpf.usermodel.Table;
import org.apache.poi.hwpf.usermodel.TableCell;
import org.apache.poi.hwpf.usermodel.TableIterator;
import org.apache.poi.hwpf.usermodel.TableRow;

public class POIWordTableUtil {

	public static void main(String[] args) throws Exception {
		/**
		Map<String, Text> replaces = new HashMap<String, Text>();

		replaces.put("${username}", Text.str("rongzhi_li"));
		replaces.put("${password}", Text.str("1123456"));
		replaces.put("${author}", Text.str("lee"));

		poiWordTableReplace("t1.doc", "t2.doc", replaces);
		**/
		System.out.println("开始。。。。");
		
	}

	public static void poiWordTableReplace(String sourceFile, String newFile,
			Map<String, Text> replaces) throws Exception {
		FileInputStream in = new FileInputStream(sourceFile);
		HWPFDocument hwpf = new HWPFDocument(in);
		Range range = hwpf.getRange();// 得到文档的读取范围
		TableIterator it = new TableIterator(range);
		// 迭代文档中的表格
		while (it.hasNext()) {
			Table tb = (Table) it.next();
			// 迭代行，默认从0开始
			for (int i = 0; i < tb.numRows(); i++) {
				TableRow tr = tb.getRow(i);
				// 迭代列，默认从0开始
				for (int j = 0; j < tr.numCells(); j++) {
					TableCell td = tr.getCell(j);// 取得单元格
					// 取得单元格的内容
					for (int k = 0; k < td.numParagraphs(); k++) {
						Paragraph para = td.getParagraph(k);

						String s = para.text();
						final String old = s;
						for (String key : replaces.keySet()) {
							if (s.contains(key)) {
								s = s.replace(key, replaces.get(key).getText());
							}
						}
						if (!old.equals(s)) {// 有变化
							para.replaceText(old, s);
							s = para.text();
							System.out.println("old:" + old + "->" + "s:" + s);
						}

					} // end for
				} // end for
			} // end for
		} // end while
		ByteArrayOutputStream baos = new ByteArrayOutputStream();
		hwpf.write(baos);
		baos.toByteArray();
		FileOutputStream out = new FileOutputStream(newFile);
		hwpf.write(out);
		out.flush();
		out.close();
	}
}