Java POI通过模板方法生成word文档

大家可能看过另一篇博客，这个是博客地址点击打开链接

里面说到使用模板的方式生成word文档，但是给出的代码并没有起效，这里我稍作了修改，这个是word文档模板方法操作工具类：

package util;import org.apache.poi.xwpf.usermodel.*;import org.junit.Test;import java.io.*;import java.util.HashMap;import java.util.Iterator;import java.util.List;import java.util.Map;import java.util.regex.Matcher;import java.util.regex.Pattern;public class XwpfTUtil {    /*String filePath = "/sta.docx";    InputStream is;    XWPFDocument doc;    Map<String, Object> params = new HashMap<String, Object>();    {        params.put("${name}", "xxx");        params.put("${sex}", "男");        params.put("${political}", "共青团员");        params.put("${place}", "sssss");        params.put("${classes}", "3102");        params.put("${id}", "213123123");        params.put("${qq}", "213123");        params.put("${tel}", "312313213");        params.put("${oldJob}", "sadasd");        params.put("${swap}", "是");        params.put("${first}", "asdasd");        params.put("${second}", "综合事务部");        params.put("${award}", "asda");        params.put("${achievement}", "完成科协网站的开发");        params.put("${advice}", "没有建议");        params.put("${attach}", "无");        try {            is = new FileInputStream(filePath);            doc = new XWPFDocument(is);        } catch (FileNotFoundException e) {            e.printStackTrace();        } catch (IOException e) {            e.printStackTrace();        }    }*/    /**     * 用一个docx文档作为模板，然后替换其中的内容，再写入目标文档中。     *     * @throws Exception     */    /*@Test    public void testTemplateWrite() throws Exception {        //替换段落里面的变量        this.replaceInPara(doc, params);        //替换表格里面的变量        this.replaceInTable(doc, params);        OutputStream os = new FileOutputStream("D:\\sta1.docx");        doc.write(os);        this.close(os);        this.close(is);    }*/    /*@Test    public void myTest1() throws Exception {        *//*Iterator<XWPFParagraph> iterator = doc.getParagraphsIterator();        XWPFParagraph para;        while (iterator.hasNext()) {            para = iterator.next();            List<XWPFRun> runs = para.getRuns();            para.removeRun(0);            para.insertNewRun(0).setText("hello");        }        OutputStream os = new FileOutputStream("D:\\sta1.docx");        doc.write(os);        this.close(os);        this.close(is);*//*        System.out.println(this.matcher("报告日期：${reportDate}").find());    }*/    /*@Test    public void myReplaceInPara() {//        Iterator<XWPFParagraph> iterator = doc.getParagraphsIterator();//        XWPFParagraph para;//        while (iterator.hasNext()) {//            para = iterator.next();//            List<XWPFRun> runs = para.getRuns();//////        }        System.out.println('{'=='{');    }*/    /**     * 替换段落里面的变量     *     * @param doc    要替换的文档     * @param params 参数     */    public void replaceInPara(XWPFDocument doc, Map<String, Object> params) {        Iterator<XWPFParagraph> iterator = doc.getParagraphsIterator();        XWPFParagraph para;        while (iterator.hasNext()) {            para = iterator.next();            this.replaceInPara(para, params);        }    }    /**     * 替换段落里面的变量     *     * @param para   要替换的段落     * @param params 参数     */    public void replaceInPara(XWPFParagraph para, Map<String, Object> params) {        List<XWPFRun> runs;        Matcher matcher;        if (this.matcher(para.getParagraphText()).find()) {            runs = para.getRuns();            int start = -1;            int end = -1;            String str = "";            for (int i = 0; i < runs.size(); i++) {                XWPFRun run = runs.get(i);                String runText = run.toString();                System.out.println("------>>>>>>>>>" + runText);                if ('$' == runText.charAt(0)&&'{' == runText.charAt(1)) {                    start = i;                }                if ((start != -1)) {                    str += runText;                }                if ('}' == runText.charAt(runText.length() - 1)) {                    if (start != -1) {                        end = i;                        break;                    }                }            }            System.out.println("start--->"+start);            System.out.println("end--->"+end);            System.out.println("str---->>>" + str);            for (int i = start; i <= end; i++) {                para.removeRun(i);                i--;                end--;                System.out.println("remove i="+i);            }            for (String key : params.keySet()) {                if (str.equals(key)) {                    para.createRun().setText((String) params.get(key));                    break;                }            }        }    }    /**     * 替换表格里面的变量     *     * @param doc    要替换的文档     * @param params 参数     */    public void replaceInTable(XWPFDocument doc, Map<String, Object> params) {        Iterator<XWPFTable> iterator = doc.getTablesIterator();        XWPFTable table;        List<XWPFTableRow> rows;        List<XWPFTableCell> cells;        List<XWPFParagraph> paras;        while (iterator.hasNext()) {            table = iterator.next();            rows = table.getRows();            for (XWPFTableRow row : rows) {                cells = row.getTableCells();                for (XWPFTableCell cell : cells) {                    paras = cell.getParagraphs();                    for (XWPFParagraph para : paras) {                        this.replaceInPara(para, params);                    }                }            }        }    }    /**     * 正则匹配字符串     *     * @param str     * @return     */    private Matcher matcher(String str) {        Pattern pattern = Pattern.compile("\\$\\{(.+?)\\}", Pattern.CASE_INSENSITIVE);        Matcher matcher = pattern.matcher(str);        return matcher;    }    /**     * 关闭输入流     *     * @param is     */    public void close(InputStream is) {        if (is != null) {            try {                is.close();            } catch (IOException e) {                e.printStackTrace();            }        }    }    /**     * 关闭输出流     *     * @param os     */    public void close(OutputStream os) {        if (os != null) {            try {                os.close();            } catch (IOException e) {                e.printStackTrace();            }        }    }}

相比较原文，我这段代码只改了

public void replaceinPara(XWPFParagraph para,Map<String,Object> params>{}

这个函数的实现方式，当然，使用方式也变了，使用方法：

@Action(value = "exportApplyForm")    public void exportApplyForm() throws Exception {        String id = request.getParameter("id");        applyForm = applyFormService.retriveById(id);        Map<String, Object> params = new HashMap<String, Object>();        params.put("${name}", applyForm.getName());        params.put("${sex}", applyForm.getSex());        params.put("${political}", applyForm.getPolitical());        params.put("${place}", applyForm.getPlace());        params.put("${classes}", applyForm.getClasses());        params.put("${id}", applyForm.getStudentId());        params.put("${qq}", applyForm.getQq());        params.put("${tel}", applyForm.getTel());        params.put("${oldJob}", applyForm.getOldJob());        params.put("${swap}", applyForm.getSwap());        params.put("${first}", applyForm.getFirst());        params.put("${second}", applyForm.getSecond());        params.put("${award}", applyForm.getAward());        params.put("${achievement}", applyForm.getAchievement());        params.put("${advice}", applyForm.getAdvice());        params.put("${attach}", applyForm.getAttach());        XwpfTUtil xwpfTUtil = new XwpfTUtil();        XWPFDocument doc;        String fileNameInResource = "sta.docx";        InputStream is;        /*is = new FileInputStream(filePath);*/        is = getClass().getClassLoader().getResourceAsStream(fileNameInResource);        doc = new XWPFDocument(is);        xwpfTUtil.replaceInPara(doc, params);        //替换表格里面的变量        xwpfTUtil.replaceInTable(doc, params);        OutputStream os = response.getOutputStream();        response.setContentType("application/vnd.ms-excel");        response.setHeader("Content-disposition","attachment;filename="+applyForm.getName()+".docx");        doc.write(os);        xwpfTUtil.close(os);        xwpfTUtil.close(is);        os.flush();        os.close();    }

这个是word模板闻文件

从图片中可以看出，就是替换掉制定字符串的功能，最后将文件流输出到客户端浏览器供下载。

这里还需要导入poi依赖，我这里是使用maven导入依赖的：

<!--导入操作excel所需要的jar包-->        <dependency>            <groupId>org.apache.poi</groupId>            <artifactId>                poi</artifactId>            <version>3.10-beta2</version>            <type>jar</type>            <scope>compile</scope>        </dependency>        <dependency>            <groupId>org.apache.poi</groupId>            <artifactId>poi-ooxml</artifactId>            <version>3.10-beta2</version>            <type>jar</type>        </dependency>        <dependency>            <groupId>org.apache.poi</groupId>            <artifactId>poi-ooxml-schemas</artifactId>            <version>3.10-beta2</version>            <type>jar</type>            <scope>compile</scope>        </dependency>        <dependency>            <groupId>org.apache.poi</groupId>            <artifactId>poi-scratchpad</artifactId>            <version>3.0.2-FINAL</version>        </dependency>