java 使用POI 读写word 表格，javapoi,POI是apache的开

java 使用POI 读写word 表格，javapoi,POI是apache的开

POI是apache的开源项目,其地址在http://poi.apache.org/

下面是起官方网站的标题，POI是微软文档的javaAPI Apache POI - the Java API for Microsoft Documents。 下面是一个POI读写word表格的例子：

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 POIWordUtil {    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);    }    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        FileOutputStream out = new FileOutputStream(newFile);        hwpf.write(out);        out.flush();        out.close();    }}public abstract class Text {    public abstract String getText();    public static Text str(final String string) {        return new Text() {            @Override            public String getText() {                return string;            }        };    }}