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SpringBoot导出Word文档的三种方式

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前言:

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一、导出方案1、直接在Java代码里创建Word文档,设置格式样式等,然后导出。(略)需要的见:2、富文本转换后的HTML下载为Word文档。相当于把HTML转为Word导出3、使用模板技术导出。固定格式、可以写入不同数据其他:springboot版本:2.7.11导出”页面视图“参考:xml格式化:HTTP下载 常用的需要设置的MIME类型

.doc      application/msword.dot      application/msword .docx     application/vnd.openxmlformats-officedocument.wordprocessingml.document.dotx     application/vnd.openxmlformats-officedocument.wordprocessingml.template.docm     application/vnd.ms-word.document.macroEnabled.12.dotm     application/vnd.ms-word.template.macroEnabled.12 .xls      application/vnd.ms-excel.xlt      application/vnd.ms-excel.xla      application/vnd.ms-excel .xlsx     application/vnd.openxmlformats-officedocument.spreadsheetml.sheet.xltx     application/vnd.openxmlformats-officedocument.spreadsheetml.template.xlsm     application/vnd.ms-excel.sheet.macroEnabled.12.xltm     application/vnd.ms-excel.template.macroEnabled.12.xlam     application/vnd.ms-excel.addin.macroEnabled.12.xlsb     application/vnd.ms-excel.sheet.binary.macroEnabled.12 .ppt      application/vnd.ms-powerpoint.pot      application/vnd.ms-powerpoint.pps      application/vnd.ms-powerpoint.ppa      application/vnd.ms-powerpoint .pptx     application/vnd.openxmlformats-officedocument.presentationml.presentation.potx     application/vnd.openxmlformats-officedocument.presentationml.template.ppsx     application/vnd.openxmlformats-officedocument.presentationml.slideshow.ppam     application/vnd.ms-powerpoint.addin.macroEnabled.12.pptm     application/vnd.ms-powerpoint.presentation.macroEnabled.12.potm     application/vnd.ms-powerpoint.template.macroEnabled.12.ppsm     application/vnd.ms-powerpoint.slideshow.macroEnabled.12 .mdb      application/vnd.ms-access
二、富文本转换后的HTML下载为Word文档1、准备业务需求前端使用富文本插件生成带HTML标签的word文档,然后需要下载这个word文档。每个word文档的格式是可变的扩展业务需求:甚至可以去替换HTML的Word中的内容,然后导出需要的文档;缺点:替换字符串麻烦、而且HTML的Word的标签还需要研究。基于上述的业务需求。建议使用模板技术导出(也就是“三”)参考:导出结果2、实现2.1、导包
<!--  --><dependency>    <groupId>org.apache.poi</groupId>    <artifactId>poi</artifactId>    <version>4.1.2</version></dependency>
2.2、HTML的word文档
package com.cc.ewd.html;/** * @author CC * @since 2023/4/24 0024 */public interface HtmlConstants {    /**     * 普通文档(富文本生成的)     */    String HTML1 = "<h1 style=\"text-align: center;\"><strong>文章标题</strong></h1><h1><strong>一、标题1" +            "</strong></h1><p><strong>       我是数据:{NUM}</strong></p><h2><strong>" +            "1.1、吾问无为谓</strong></h2><table style=\"width: 100%;\">" +            "<tbody><tr><th colSpan=\"1\" rowSpan=\"1\" width=\"auto\">序号</th>" +            "<th colSpan=\"1\" rowSpan=\"1\" width=\"auto\">第一列</th>" +            "<th colSpan=\"1\" rowSpan=\"1\" width=\"auto\">第二列</th>" +            "<th colSpan=\"1\" rowSpan=\"1\" width=\"auto\">第三列</th>" +            "<th colSpan=\"1\" rowSpan=\"1\" width=\"auto\">第四列</th>" +            "</tr><tr><td colspan=\"1\" rowspan=\"1\" width=\"auto\" style=\"text-align: center;\">1</td>" +            "<td colspan=\"1\" rowspan=\"1\" width=\"auto\" style=\"text-align: center;\">11</td>" +            "<td colspan=\"1\" rowspan=\"1\" width=\"auto\" style=\"text-align: center;\">22</td>" +            "<td colspan=\"1\" rowspan=\"1\" width=\"auto\" style=\"text-align: center;\">33</td>" +            "<td colspan=\"1\" rowspan=\"1\" width=\"auto\" style=\"text-align: center;\">44</td>" +            "</tr><tr><td colspan=\"1\" rowspan=\"1\" width=\"auto\" style=\"text-align: center;\">2</td>" +            "<td colspan=\"1\" rowspan=\"1\" width=\"auto\" style=\"text-align: center;\">11</td>" +            "<td colspan=\"1\" rowspan=\"1\" width=\"auto\" style=\"text-align: center;\">22</td>" +            "<td colspan=\"1\" rowspan=\"1\" width=\"auto\" style=\"text-align: center;\">33</td>" +            "<td colspan=\"1\" rowspan=\"1\" width=\"auto\" style=\"text-align: center;\">44</td>" +            "</tr><tr><td colspan=\"1\" rowspan=\"1\" width=\"auto\" style=\"text-align: center;\">3</td>" +            "<td colspan=\"1\" rowspan=\"1\" width=\"auto\" style=\"text-align: center;\">11</td>" +            "<td colspan=\"1\" rowspan=\"1\" width=\"auto\" style=\"text-align: center;\">22</td>" +            "<td colspan=\"1\" rowspan=\"1\" width=\"auto\" style=\"text-align: center;\">33</td>" +            "<td colspan=\"1\" rowspan=\"1\" width=\"auto\" style=\"text-align: center;\">44</td></tr>" +            "</tbody></table><p><br></p>";    /**     * 带表格文档(可以富文本生成,也可以使用word文档另存为HTML文件,然后拷出来)     */    String HTML2 = "<!--StartFragment--><div class=\"Section0\"  style=\"layout-grid:15.6000pt;\" ><h1 align=center  style=\"text-align:center;\" ><b style=\"mso-bidi-font-weight:normal\" ><span style=\"mso-spacerun:'yes';font-family:宋体;mso-ascii-font-family:Calibri;\n" +            "mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';mso-ansi-font-weight:bold;\n" +            "font-size:22.0000pt;mso-font-kerning:22.0000pt;\" ><font face=\"宋体\" >标题</font></span></b><b style=\"mso-bidi-font-weight:normal\" ><span style=\"mso-spacerun:'yes';font-family:宋体;mso-ascii-font-family:Calibri;\n" +            "mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';mso-ansi-font-weight:bold;\n" +            "font-size:22.0000pt;mso-font-kerning:22.0000pt;\" ><o:p></o:p></span></b></h1><h2><b style=\"mso-bidi-font-weight:normal\" ><span style=\"mso-spacerun:'yes';font-family:黑体;mso-ascii-font-family:Arial;\n" +            "mso-hansi-font-family:Arial;mso-bidi-font-family:'Times New Roman';mso-ansi-font-weight:bold;\n" +            "font-size:16.0000pt;mso-font-kerning:1.0000pt;\" ><font face=\"黑体\" >一、段落</font><font face=\"Arial\" >1</font></span></b><b style=\"mso-bidi-font-weight:normal\" ><span style=\"mso-spacerun:'yes';font-family:Arial;mso-fareast-font-family:黑体;\n" +            "mso-bidi-font-family:'Times New Roman';mso-ansi-font-weight:bold;font-size:16.0000pt;\n" +            "mso-font-kerning:1.0000pt;\" ><o:p></o:p></span></b></h2><p class=MsoNormal ><span style=\"mso-spacerun:'yes';font-family:宋体;mso-ascii-font-family:Calibri;\n" +            "mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;\n" +            "mso-font-kerning:1.0000pt;\" ><font face=\"宋体\" >哒哒</font></span><b><span style=\"mso-spacerun:'yes';font-family:宋体;mso-ascii-font-family:Calibri;\n" +            "mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';color:rgb(0,0,255);\n" +            "font-weight:bold;font-size:10.5000pt;mso-font-kerning:1.0000pt;\" ><font face=\"宋体\" >哒哒哒</font></span></b><span style=\"mso-spacerun:'yes';font-family:宋体;mso-ascii-font-family:Calibri;\n" +            "mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;\n" +            "mso-font-kerning:1.0000pt;\" ><font face=\"宋体\" >哒</font></span><span style=\"mso-spacerun:'yes';font-family:Calibri;mso-fareast-font-family:宋体;\n" +            "mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;\" ><o:p></o:p></span></p><h3><b style=\"mso-bidi-font-weight:normal\" ><span style=\"mso-spacerun:'yes';font-family:宋体;mso-ascii-font-family:Calibri;\n" +            "mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';mso-ansi-font-weight:bold;\n" +            "font-size:16.0000pt;mso-font-kerning:1.0000pt;\" ><font face=\"Calibri\" >1.1</font><font face=\"宋体\" >、表格</font></span></b><b style=\"mso-bidi-font-weight:normal\" ><span style=\"mso-spacerun:'yes';font-family:Calibri;mso-fareast-font-family:宋体;\n" +            "mso-bidi-font-family:'Times New Roman';mso-ansi-font-weight:bold;font-size:16.0000pt;\n" +            "mso-font-kerning:1.0000pt;\" ><o:p></o:p></span></b></h3><table class=MsoTableGrid  border=1  cellspacing=0  style=\"border-collapse:collapse;border:none;mso-border-left-alt:0.5000pt solid windowtext;\n" +            "mso-border-top-alt:0.5000pt solid windowtext;mso-border-right-alt:0.5000pt solid windowtext;mso-border-bottom-alt:0.5000pt solid windowtext;\n" +            "mso-border-insideh:0.5000pt solid windowtext;mso-border-insidev:0.5000pt solid windowtext;mso-padding-alt:0.0000pt 5.4000pt 0.0000pt 5.4000pt ;\" ><tr><td width=142  valign=center  style=\"width:106.5000pt;padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ;border-left:1.0000pt solid windowtext;\n" +            "mso-border-left-alt:0.5000pt solid windowtext;border-right:1.0000pt solid windowtext;mso-border-right-alt:0.5000pt solid windowtext;\n" +            "border-top:1.0000pt solid windowtext;mso-border-top-alt:0.5000pt solid windowtext;border-bottom:1.0000pt solid windowtext;\n" +            "mso-border-bottom-alt:0.5000pt solid windowtext;\" ><p class=MsoNormal  align=center  style=\"text-align:center;\" ><span style=\"font-family:宋体;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;\n" +            "mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;\" ><font face=\"宋体\" >序号</font></span><span style=\"font-family:Calibri;mso-fareast-font-family:宋体;mso-bidi-font-family:'Times New Roman';\n" +            "font-size:10.5000pt;mso-font-kerning:1.0000pt;\" ><o:p></o:p></span></p></td><td width=142  valign=center  style=\"width:106.5000pt;padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ;border-left:1.0000pt solid windowtext;\n" +            "mso-border-left-alt:0.5000pt solid windowtext;border-right:1.0000pt solid windowtext;mso-border-right-alt:0.5000pt solid windowtext;\n" +            "border-top:1.0000pt solid windowtext;mso-border-top-alt:0.5000pt solid windowtext;border-bottom:1.0000pt solid windowtext;\n" +            "mso-border-bottom-alt:0.5000pt solid windowtext;\" ><p class=MsoNormal  align=center  style=\"text-align:center;\" ><span style=\"font-family:宋体;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;\n" +            "mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;\" ><font face=\"宋体\" >列</font><font face=\"Calibri\" >1</font></span><span style=\"font-family:Calibri;mso-fareast-font-family:宋体;mso-bidi-font-family:'Times New Roman';\n" +            "font-size:10.5000pt;mso-font-kerning:1.0000pt;\" ><o:p></o:p></span></p></td><td width=142  valign=center  style=\"width:106.5500pt;padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ;border-left:1.0000pt solid windowtext;\n" +            "mso-border-left-alt:0.5000pt solid windowtext;border-right:1.0000pt solid windowtext;mso-border-right-alt:0.5000pt solid windowtext;\n" +            "border-top:1.0000pt solid windowtext;mso-border-top-alt:0.5000pt solid windowtext;border-bottom:1.0000pt solid windowtext;\n" +            "mso-border-bottom-alt:0.5000pt solid windowtext;\" ><p class=MsoNormal  align=center  style=\"text-align:center;\" ><span style=\"font-family:宋体;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;\n" +            "mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;\" ><font face=\"宋体\" >列</font><font face=\"Calibri\" >2</font></span><span style=\"font-family:Calibri;mso-fareast-font-family:宋体;mso-bidi-font-family:'Times New Roman';\n" +            "font-size:10.5000pt;mso-font-kerning:1.0000pt;\" ><o:p></o:p></span></p></td><td width=142  valign=center  style=\"width:106.5500pt;padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ;border-left:1.0000pt solid windowtext;\n" +            "mso-border-left-alt:0.5000pt solid windowtext;border-right:1.0000pt solid windowtext;mso-border-right-alt:0.5000pt solid windowtext;\n" +            "border-top:1.0000pt solid windowtext;mso-border-top-alt:0.5000pt solid windowtext;border-bottom:1.0000pt solid windowtext;\n" +            "mso-border-bottom-alt:0.5000pt solid windowtext;\" ><p class=MsoNormal  align=center  style=\"text-align:center;\" ><span style=\"font-family:宋体;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;\n" +            "mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;\" ><font face=\"宋体\" >列</font><font face=\"Calibri\" >3</font></span><span style=\"font-family:Calibri;mso-fareast-font-family:宋体;mso-bidi-font-family:'Times New Roman';\n" +            "font-size:10.5000pt;mso-font-kerning:1.0000pt;\" ><o:p></o:p></span></p></td></tr><tr><td width=142  valign=center  style=\"width:106.5000pt;padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ;border-left:1.0000pt solid windowtext;\n" +            "mso-border-left-alt:0.5000pt solid windowtext;border-right:1.0000pt solid windowtext;mso-border-right-alt:0.5000pt solid windowtext;\n" +            "border-top:none;mso-border-top-alt:0.5000pt solid windowtext;border-bottom:1.0000pt solid windowtext;\n" +            "mso-border-bottom-alt:0.5000pt solid windowtext;\" ><p class=MsoNormal  align=center  style=\"text-align:center;\" ><span style=\"font-family:宋体;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;\n" +            "mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;\" ><font face=\"Calibri\" >1</font></span><span style=\"font-family:Calibri;mso-fareast-font-family:宋体;mso-bidi-font-family:'Times New Roman';\n" +            "font-size:10.5000pt;mso-font-kerning:1.0000pt;\" ><o:p></o:p></span></p></td><td width=142  valign=center  style=\"width:106.5000pt;padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ;border-left:1.0000pt solid windowtext;\n" +            "mso-border-left-alt:0.5000pt solid windowtext;border-right:1.0000pt solid windowtext;mso-border-right-alt:0.5000pt solid windowtext;\n" +            "border-top:none;mso-border-top-alt:0.5000pt solid windowtext;border-bottom:1.0000pt solid windowtext;\n" +            "mso-border-bottom-alt:0.5000pt solid windowtext;\" ><p class=MsoNormal  align=center  style=\"text-align:center;\" ><span style=\"font-family:宋体;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;\n" +            "mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;\" ><font face=\"Calibri\" >11</font></span><span style=\"font-family:Calibri;mso-fareast-font-family:宋体;mso-bidi-font-family:'Times New Roman';\n" +            "font-size:10.5000pt;mso-font-kerning:1.0000pt;\" ><o:p></o:p></span></p></td><td width=142  valign=center  style=\"width:106.5500pt;padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ;border-left:1.0000pt solid windowtext;\n" +            "mso-border-left-alt:0.5000pt solid windowtext;border-right:1.0000pt solid windowtext;mso-border-right-alt:0.5000pt solid windowtext;\n" +            "border-top:none;mso-border-top-alt:0.5000pt solid windowtext;border-bottom:1.0000pt solid windowtext;\n" +            "mso-border-bottom-alt:0.5000pt solid windowtext;\" ><p class=MsoNormal  align=center  style=\"text-align:center;\" ><span style=\"font-family:宋体;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;\n" +            "mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;\" ><font face=\"Calibri\" >22</font></span><span style=\"font-family:Calibri;mso-fareast-font-family:宋体;mso-bidi-font-family:'Times New Roman';\n" +            "font-size:10.5000pt;mso-font-kerning:1.0000pt;\" ><o:p></o:p></span></p></td><td width=142  valign=center  style=\"width:106.5500pt;padding:0.0000pt 5.4000pt 0.0000pt 5.4000pt ;border-left:1.0000pt solid windowtext;\n" +            "mso-border-left-alt:0.5000pt solid windowtext;border-right:1.0000pt solid windowtext;mso-border-right-alt:0.5000pt solid windowtext;\n" +            "border-top:none;mso-border-top-alt:0.5000pt solid windowtext;border-bottom:1.0000pt solid windowtext;\n" +            "mso-border-bottom-alt:0.5000pt solid windowtext;\" ><p class=MsoNormal  align=center  style=\"text-align:center;\" ><span style=\"font-family:宋体;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;\n" +            "mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;\" ><font face=\"Calibri\" >33</font></span><span style=\"font-family:Calibri;mso-fareast-font-family:宋体;mso-bidi-font-family:'Times New Roman';\n" +            "font-size:10.5000pt;mso-font-kerning:1.0000pt;\" ><o:p></o:p></span></p></td></tr></table><p class=MsoNormal ><span style=\"mso-spacerun:'yes';font-family:Calibri;mso-fareast-font-family:宋体;\n" +            "mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;\" ><o:p> </o:p></span></p><p class=MsoNormal ><span style=\"mso-spacerun:'yes';font-family:Calibri;mso-fareast-font-family:宋体;\n" +            "mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;\" ><o:p> </o:p></span></p><p class=MsoNormal ><span style=\"mso-spacerun:'yes';font-family:Calibri;mso-fareast-font-family:宋体;\n" +            "mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;\" ><o:p> </o:p></span></p><h2><b style=\"mso-bidi-font-weight:normal\" ><span style=\"mso-spacerun:'yes';font-family:黑体;mso-ascii-font-family:Arial;\n" +            "mso-hansi-font-family:Arial;mso-bidi-font-family:'Times New Roman';mso-ansi-font-weight:bold;\n" +            "font-size:16.0000pt;mso-font-kerning:1.0000pt;\" ><font face=\"黑体\" >二、段落</font><font face=\"Arial\" >2</font></span></b><b style=\"mso-bidi-font-weight:normal\" ><span style=\"mso-spacerun:'yes';font-family:Arial;mso-fareast-font-family:黑体;\n" +            "mso-bidi-font-family:'Times New Roman';mso-ansi-font-weight:bold;font-size:16.0000pt;\n" +            "mso-font-kerning:1.0000pt;\" ><o:p></o:p></span></b></h2><p class=MsoNormal ><span style=\"mso-spacerun:'yes';font-family:宋体;mso-ascii-font-family:Calibri;\n" +            "mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;\n" +            "mso-font-kerning:1.0000pt;\" ><o:p> </o:p></span></p><p class=MsoNormal ><span style=\"mso-spacerun:'yes';font-family:宋体;mso-ascii-font-family:Calibri;\n" +            "mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;\n" +            "mso-font-kerning:1.0000pt;\" ><o:p> </o:p></span></p><p class=MsoNormal ><span style=\"mso-spacerun:'yes';font-family:宋体;mso-ascii-font-family:Calibri;\n" +            "mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;\n" +            "mso-font-kerning:1.0000pt;\" ><o:p> </o:p></span></p></div><!--EndFragment-->";}
2.3、导出逻辑、注意事项看注释代码:
package com.cc.ewd.web.controller;import com.cc.ewd.html.HtmlConstants;import org.apache.poi.poifs.filesystem.DirectoryEntry;import org.apache.poi.poifs.filesystem.POIFSFileSystem;import org.springframework.web.bind.annotation.GetMapping;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RestController;import javax.servlet.http.HttpServletResponse;import java.io.*;import java.net.URLEncoder;import java.nio.charset.StandardCharsets;/** 业务需求:前端使用富文本插件生成带HTML标签的word文档,然后需要下载这个word文档。 * @author CC * @since 2023/4/24 0024 */@RestController@RequestMapping("/apachePoiExport")public class ApachePoiExport {  /** 将HTML内容(富文本生成的HTML)转换为Word文档并下载   * @param response HTTP响应   */  @GetMapping  public void getDoc(HttpServletResponse response) {    String fileName = "Word文件名";    String html = HtmlConstants.HTML2;    //导出word的方法    exportWord(fileName, html, response);  }  /** <p>将HTML内容(富文本生成的HTML)转换为Word文档并下载(word2007之后的_docx)</p>   *  <li>参考:;/li>   *  <li>参考:;/li>   * @param fileName 文件名   * @param html 富文本生成的HTML   * @param response 响应   * @since 2023/4/25 0025   * @author CC   **/  public static void exportWord(String fileName, String html, HttpServletResponse response) {    //0、获取富文本的html:    // HTML内容必须被<html><body></body></html>包装;最好设置一下编码格式    // HTML在这里设置<head></head>是为了让输入的文档是以"页面视图"。而不是"Web版式"    String wrappedHtml =            "<html xmlns:v=\"urn:schemas-microsoft-com:vml\" xmlns:o=\"urn:schemas-microsoft-com:office:office\"\n" +                    "xmlns:w=\"urn:schemas-microsoft-com:office:word\" xmlns:m=\"\"\n" +                    "xmlns=\"\">" +                "<head>" +                    "<!--[if gte mso 9]><xml><w:WordDocument><w:View>Print</w:View><w:TrackMoves>false</w:TrackMoves>" +                    "<w:TrackFormatting/><w:ValidateAgainstSchemas/><w:SaveIfXMLInvalid>false</w:SaveIfXMLInvalid>" +                    "<w:IgnoreMixedContent>false</w:IgnoreMixedContent><w:AlwaysShowPlaceholderText>false</w:AlwaysShowPlaceholderText>" +                    "<w:DoNotPromoteQF/><w:LidThemeOther>EN-US</w:LidThemeOther><w:LidThemeAsian>ZH-CN</w:LidThemeAsian>" +                    "<w:LidThemeComplexScript>X-NONE</w:LidThemeComplexScript><w:Compatibility><w:BreakWrappedTables/>" +                    "<w:SnapToGridInCell/><w:WrapTextWithPunct/><w:UseAsianBreakRules/><w:DontGrowAutofit/><w:SplitPgBreakAndParaMark/>" +                    "<w:DontVertAlignCellWithSp/><w:DontBreakConstrainedForcedTables/><w:DontVertAlignInTxbx/><w:Word11KerningPairs/>" +                    "<w:CachedColBalance/><w:UseFELayout/></w:Compatibility><w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel>" +                    "<m:mathPr><m:mathFont m:val=\"Cambria Math\"/><m:brkBin m:val=\"before\"/><m:brkBinSub m:val=\"--\"/>" +                    "<m:smallFrac m:val=\"off\"/><m:dispDef/><m:lMargin m:val=\"0\"/> <m:rMargin m:val=\"0\"/><m:defJc m:val=\"centerGroup\"/>" +                    "<m:wrapIndent m:val=\"1440\"/><m:intLim m:val=\"subSup\"/><m:naryLim m:val=\"undOvr\"/></m:mathPr></w:WordDocument>" +                    "</xml><![endif]-->" +                "</head>" +                "<body>%s</body>" +            "</html>";    wrappedHtml = String.format(wrappedHtml, html);    //1、将HTML转换为Word文档byte数组    byte[] bytes = wrappedHtml.getBytes(StandardCharsets.UTF_8);    try (POIFSFileSystem poifsFileSystem = new POIFSFileSystem();         InputStream byteInputStream = new ByteArrayInputStream(bytes);//             InputStream inputStream = new BufferedInputStream(byteInputStream);         ByteArrayOutputStream outputStream = new ByteArrayOutputStream();    ){      //2、使用ApachePoi转换word并设置到输出流outputStream      DirectoryEntry directory = poifsFileSystem.getRoot();      //WordDocument名称不允许修改      directory.createDocument("WordDocument", byteInputStream);      //将Word文档写入POIFSFileSystem对象      poifsFileSystem.writeFilesystem(outputStream);      //3、①将Word文档(输出流outputStream)写入HTTP响应并下载;②也可以上传到自己的文件服务器然后返回URL给前端下载。      response.setCharacterEncoding("utf-8");      //设置content-type就是告诉浏览器这是啥玩意儿      //"octet-stream" :通用二进制流;      //"msword" :Microsoft Word文档      //"vnd.openxmlformats-officedocument.wordprocessingml.document" :响应的内容类型设置为Microsoft Word 2007及更高版本的docx格式。对应的文件名后缀需要改成”docx“      response.setContentType("application/vnd.openxmlformats-officedocument.wordprocessingml.document;charset=UTF-8");      //解决跨域不显示在header里面的问题      response.setHeader("Access-Control-Expose-Headers","Content-disposition");      //"attachment":让浏览器把响应视为附件并下载      //"inline":    让浏览器打开Word文档而不是下载它      response.setHeader("Content-disposition","attachment; filename=" +              URLEncoder.encode(fileName.concat(".docx"), "UTF-8"));      //BufferedOutputStream缓冲流:可以将数据缓存在内存中,以减少对底层IO的调用次数,从而提高性能。      //ServletOutputStream:用于向客户端发送数据的      //因为需要将数据写入HTTP响应,所以使用ServletOutputStream是更好的选择。      OutputStream out = new BufferedOutputStream(response.getOutputStream());      out.write(outputStream.toByteArray());      out.flush();      out.close();    } catch (Exception e) {      e.printStackTrace();    }  }}
三、使用模板技术导出使用Thymeleaf模板技术(推荐,也是我使用的)。也可以使用FreeMarkerWord文件的格式是固定可以根据需求写入不同的数据1、准备工作1.1、导包
<dependency>    <groupId>org.springframework.boot</groupId>    <artifactId>spring-boot-starter-thymeleaf</artifactId></dependency>
1.2、导出文件的预处理,Thymeleaf语法使用WPS(建议使用微软的Word)新建一个需要导出Word文件这个Word文件中,需要替换的值,最好使用单独的格式。因为单独的格式在HTML或者xml中才能区分弄好Word文件,最后另存为xml格式或者HTML(单个文件)格式。就得到我们需要的xml或者HTML格式的Word文件。使用Thymeleaf语法修改xml文件参考:Thymeleaf更多语法见下面:https://blog.csdn.net/weixin_45203607/article/details/120251923 https://blog.csdn.net/guoqigengxin/article/details/108674177普通文本普通文本循环
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条件判断:if-else1.3、把处理好的xml文件放到resources下1.4、使用HTML的注意事项见附件:thymeleaf_3_wps.html另存为后,修改HTML的编码格式:utf-8设置值,直接可以设置在:font 标签上“页面视图“修改:参考导出页面视图见:一、导出方案2、原理可以使用xml导出、也可以使用HTML导出。导出前需要预处理xml可以使用下面的进行测试、导出。2.1、原理
package com.cc.ewd.web.controller;import com.cc.ewd.vo.Msg4Vo;import org.springframework.web.bind.annotation.GetMapping;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RestController;import org.thymeleaf.context.Context;import org.thymeleaf.spring5.SpringTemplateEngine;import org.thymeleaf.templatemode.TemplateMode;import org.thymeleaf.templateresolver.ClassLoaderTemplateResolver;import javax.annotation.Resource;import javax.servlet.ServletOutputStream;import javax.servlet.http.HttpServletResponse;import java.io.ByteArrayInputStream;import java.io.ByteArrayOutputStream;import java.io.IOException;import java.net.URLEncoder;import java.nio.charset.StandardCharsets;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;/** thymeleaf导出的原理 * @author CC * @since 2023/4/25 0025 */@RestController@RequestMapping("/thymeleafTheoryExport")public class ThymeleafTheoryExport {    @Resource    private SpringTemplateEngine springTemplateEngine;    /** <p>原理</p>     * <ol>     *     <li>相当于把word文件转为xml或者html,然后修改其中的值再以xml、html下载成word文件</li>     *     <li>这个方法只能运行一次,因为对ClassLoaderTemplateResolver的设置是一次性的</li>     *     <li>所以需要将ClassLoaderTemplateResolver设置成单例:配置Bean。</li>     *     <li>doc或docx的模板别使用WPS的文档,使用微软的office新建word文档,然后转为xml或html</li>     *     <li>可以导出xml、也可以导出html:建议使用xml</li>     * </ol>     */    @GetMapping    public void thymeleafExport(HttpServletResponse response){        String fileName = "第一个thy的文件";        //一、设置Thymeleaf模板        ClassLoaderTemplateResolver templateResolver = new ClassLoaderTemplateResolver();        //xml文件地址:自定义xml的文件夹:thymeleafcs/thymeleaf_1_wps.xml        //xml文件地址:默认放在thymeleaf下就可以读取到        templateResolver.setPrefix("thymeleafcs/");        //设置文件的后缀        templateResolver.setSuffix(".xml");//        templateResolver.setSuffix(".html");        templateResolver.setCharacterEncoding("utf-8");        //模板模式:默认是HTML。改为xml//        templateResolver.setTemplateMode(TemplateMode.XML);        templateResolver.setTemplateMode(TemplateMode.HTML);        //加载模板        springTemplateEngine.setTemplateResolver(templateResolver);        //启用Spring EL编译器        springTemplateEngine.setEnableSpringELCompiler(true);        //二、设置数据(可以用map,也可以用对象)        Map<String,Object> map = new HashMap<>();        //1普通文本参数        map.put("msg1","我是参数1111");        map.put("msg2","我是参数2222");        map.put("msg3","我是参数3333");        //2if-else参数        map.put("thIf1","1");        map.put("thIf2","2");        //3循环:构建集合参数,用于表格:可以是Map;可以是对象//        List<Map<String,Object>> msg4Vos = new ArrayList<>();        List<Msg4Vo> msg4Vos = new ArrayList<>();        for (int i = 0; i < 10; i++) {            //1map方式//            Map<String,Object> map4 = new HashMap<>();//            map4.put("l1","列1-" + i);//            map4.put("l2","列2-" + i);//            map4.put("l3","列3-" + i);//            map4.put("l4","列4-" + i);//            msg4Vos.add(map4);            //2对象方式            Msg4Vo vo = new Msg4Vo();            vo.setL1("列1-" + i);            vo.setL2("列2-" + i);            vo.setL3("列3-" + i);            vo.setL4("列4-" + i);            msg4Vos.add(vo);        }        map.put("msg4Vos",msg4Vos);        //4设置数据        Context context = new Context();        context.setVariables(map);        //写入输入(模板名称,数据)        String process = springTemplateEngine.process("thymeleaf_4_wps_final", context);        //三、下载        //建议下载成doc的。不然微软的office可能打不开        try {            byte[] bytes = process.getBytes(StandardCharsets.UTF_8);//            ByteArrayInputStream inputStream = new ByteArrayInputStream(bytes);//            ByteArrayOutputStream outputStream = getByteArrayOutputStream(inputStream);            response.setCharacterEncoding("utf-8");            response.setContentType("application/msword");            response.setHeader("Access-Control-Expose-Headers","Content-disposition");            response.setHeader("Content-disposition","attachment; filename=" +                    URLEncoder.encode(fileName.concat(".doc"), "UTF-8"));            ServletOutputStream out = response.getOutputStream();            //两种方式都可以:用bytes好些//            out.write(outputStream.toByteArray());            out.write(bytes);            out.flush();            out.close();        }catch(Exception e){            e.printStackTrace();        }    }    /** 将 ByteArrayInputStream 拷贝成 ByteArrayOutputStream     *  将 字节数组输入流 拷贝成 字节数组输出流     */    public static ByteArrayOutputStream getByteArrayOutputStream(ByteArrayInputStream inputStream) throws IOException {        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();        byte[] buffer = new byte[1024];        int length;        while ((length = inputStream.read(buffer)) != -1) {            outputStream.write(buffer, 0, length);        }        return outputStream;    }}
2.2、导出后预览3、实现3.1、yml配置
server:  port: 5555spring:  #thymeleaf的配置  thymeleaf:    #关闭 Thymeleaf 的缓存开发过程中无需重启    #Thymeleaf默认会开启页面缓存,提高页面并发能力。但会导致我们修改页面不会立即被展现,因此我们关闭缓存    cache: false    #设置thymeleaf页面的编码    encoding: UTF-8    #模型:XML/HTML5:HTML是默认值, 为了清楚起见, 在此处添加。    mode: XML    #设置thymeleaf页面的后缀:.html是默认。    suffix: .xml    #设置thymeleaf页面的存储路径    prefix: classpath:/thymeleafcs/    #使用Spring 4.2.4或更高版本启用SpringEL编译器    #可以加快大多数情况下的执行速度, 但是当一个模板中    #的表达式在不同数据类型之间重用时,    #可能与特定情况不兼容, 因此该标志默认为“false”    #以实现更安全的向后兼容性。    enable-spring-el-compiler: true
3.2、实现
package com.cc.ewd.web.controller;import com.cc.ewd.vo.Msg4Vo;import org.springframework.web.bind.annotation.GetMapping;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RestController;import org.thymeleaf.context.Context;import org.thymeleaf.spring5.SpringTemplateEngine;import javax.annotation.Resource;import javax.servlet.ServletOutputStream;import javax.servlet.http.HttpServletResponse;import java.io.ByteArrayInputStream;import java.io.ByteArrayOutputStream;import java.io.IOException;import java.net.URLEncoder;import java.nio.charset.StandardCharsets;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;/** thymeleaf导出的实现 * @author CC * @since 2023/5/4 0025 */@RestController@RequestMapping("/thymeleafExport")public class ThymeleafExport {    @Resource    private SpringTemplateEngine springTemplateEngine;    /** <p>原理</p>     * <ol>     *     <li>相当于把word文件转为xml或者html,然后修改其中的值再以xml、html下载成word文件</li>     *     <li>这个方法只能运行一次,因为对ClassLoaderTemplateResolver的设置是一次性的</li>     *     <li>所以需要将ClassLoaderTemplateResolver设置成单例:配置Bean。</li>     *     <li>doc或docx的模板别使用WPS的文档,使用微软的office新建word文档,然后转为xml或html</li>     *     <li>可以导出xml、也可以导出html:建议使用xml</li>     * </ol>     */    @GetMapping    public void thymeleafExport(HttpServletResponse response){        String fileName = "第二个thy的文件";        //一、设置数据(可以用map,也可以用对象)        Map<String,Object> map = new HashMap<>();        //1普通文本参数        map.put("msg1","我是参数1111");        map.put("msg2","我是参数2222");        map.put("msg3","我是参数3333");        //2if-else参数        map.put("thIf1","1");        map.put("thIf2","2");        //3循环:构建集合参数,用于表格:可以是Map;可以是对象//        List<Map<String,Object>> msg4Vos = new ArrayList<>();        List<Msg4Vo> msg4Vos = new ArrayList<>();        for (int i = 0; i < 10; i++) {            //1map方式//            Map<String,Object> map4 = new HashMap<>();//            map4.put("l1","列1-" + i);//            map4.put("l2","列2-" + i);//            map4.put("l3","列3-" + i);//            map4.put("l4","列4-" + i);//            msg4Vos.add(map4);            //2对象方式            Msg4Vo vo = new Msg4Vo();            vo.setL1("列1-" + i);            vo.setL2("列2-" + i);            vo.setL3("列3-" + i);            vo.setL4("列4-" + i);            msg4Vos.add(vo);        }        map.put("msg4Vos",msg4Vos);        //4设置数据        Context context = new Context();        context.setVariables(map);        //写入输入(模板名称,数据)        String process = springTemplateEngine.process("thymeleaf_4_wps_final", context);        //二、下载        //建议下载成doc的。不然微软的office可能打不开        try {            byte[] bytes = process.getBytes(StandardCharsets.UTF_8);//            ByteArrayInputStream inputStream = new ByteArrayInputStream(bytes);//            ByteArrayOutputStream outputStream = getByteArrayOutputStream(inputStream);            response.setCharacterEncoding("utf-8");            response.setContentType("application/msword");            response.setHeader("Access-Control-Expose-Headers","Content-disposition");            response.setHeader("Content-disposition","attachment; filename=" +                    URLEncoder.encode(fileName.concat(".doc"), "UTF-8"));            ServletOutputStream out = response.getOutputStream();            //两种方式都可以:用bytes好些//            out.write(outputStream.toByteArray());            out.write(bytes);            out.flush();            out.close();        }catch(Exception e){            e.printStackTrace();        }    }    /** 将 ByteArrayInputStream 拷贝成 ByteArrayOutputStream     *  将 字节数组输入流 拷贝成 字节数组输出流     */    public static ByteArrayOutputStream getByteArrayOutputStream(ByteArrayInputStream inputStream) throws IOException {        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();        byte[] buffer = new byte[1024];        int length;        while ((length = inputStream.read(buffer)) != -1) {            outputStream.write(buffer, 0, length);        }        return outputStream;    }}
3.3、不使用yml配置,使用配置bean方式可以配置不同的bean,注入使用的时候,使用我们需要的bean。实现动态使用不同类型的模板的功能。如果yml中配置了, 又配置了bean。yml中的配置会失效。其中一个bean一定要添加:@Primary。来设置默认的beanconfig配置
package com.cc.ewd.config;import org.springframework.context.ApplicationContext;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;import org.springframework.context.annotation.Primary;import org.thymeleaf.spring5.SpringTemplateEngine;import org.thymeleaf.spring5.templateresolver.SpringResourceTemplateResolver;import org.thymeleaf.templatemode.TemplateMode;import javax.annotation.Resource;/** ThymeLeaf单独的配置 * @since 2023/5/4 0004 * @author CC **/@Configurationpublic class MyThymeLeafConfig {    @Resource    private ApplicationContext applicationContext;    /** 自定义的bean     * @return SpringTemplateEngine     * @Primary :<li>作用:指定使用名为“myTemplateEngine”的bean作为默认bean。</li>     *          <li>这样,当您在需要使用SpringTemplateEngine的地方没有指定@Qualifier注释时,Spring将使用该默认bean。</li>     *          <li>使用@Resource时,可直接设置名字。不用使用@Qualifier注释</li>     */    @Bean(name = "myTemplateEngine")    @Primary    public SpringTemplateEngine myTemplateEngine(){        // SpringTemplateEngine自动应用SpringStandardDialect        // 并启用Spring自己的MessageSource消息解析机制。        SpringTemplateEngine templateEngine = new SpringTemplateEngine();        SpringResourceTemplateResolver templateResolver = myTemplateResolver();        templateEngine.setTemplateResolver(templateResolver);        // 使用Spring 4.2.4或更高版本启用SpringEL编译器        // 可以加快大多数情况下的执行速度, 但是当一个模板中        // 的表达式在不同数据类型之间重用时,        // 可能与特定情况不兼容, 因此该标志默认为“false”        // 以实现更安全的向后兼容性。        templateEngine.setEnableSpringELCompiler(true);        return templateEngine;    }    /** 自定义配置     * @return SpringResourceTemplateResolver     */    @Bean("myTemplateResolver")    public SpringResourceTemplateResolver myTemplateResolver(){        // SpringResourceTemplateResolver自动与Spring自己集成        // 资源解决基础设施, 强烈推荐。        SpringResourceTemplateResolver templateResolver = new SpringResourceTemplateResolver();        templateResolver.setApplicationContext(this.applicationContext);        templateResolver.setPrefix("classpath:thymeleafcs/");        templateResolver.setSuffix(".html");        templateResolver.setCharacterEncoding("UTF-8");        // HTML是默认值, 为了清楚起见, 在此处添加。        templateResolver.setTemplateMode(TemplateMode.HTML);        return templateResolver;    }//----------------------------------------------    /** 自定义的bean2     * @return SpringTemplateEngine     */    @Bean(name = "myTemplateEngine2")    public SpringTemplateEngine myTemplateEngine2(){        // SpringTemplateEngine自动应用SpringStandardDialect        // 并启用Spring自己的MessageSource消息解析机制。        SpringTemplateEngine templateEngine = new SpringTemplateEngine();        SpringResourceTemplateResolver templateResolver = myTemplateResolver2();        templateEngine.setTemplateResolver(templateResolver);        // 使用Spring 4.2.4或更高版本启用SpringEL编译器        // 可以加快大多数情况下的执行速度, 但是当一个模板中        // 的表达式在不同数据类型之间重用时,        // 可能与特定情况不兼容, 因此该标志默认为“false”        // 以实现更安全的向后兼容性。        templateEngine.setEnableSpringELCompiler(true);        return templateEngine;    }    /** 自定义配置2     * @return SpringResourceTemplateResolver     */    @Bean("myTemplateResolver2")    public SpringResourceTemplateResolver myTemplateResolver2(){        // SpringResourceTemplateResolver自动与Spring自己集成        // 资源解决基础设施, 强烈推荐。        SpringResourceTemplateResolver templateResolver = new SpringResourceTemplateResolver();        templateResolver.setApplicationContext(this.applicationContext);        templateResolver.setPrefix("classpath:thymeleafcs/");        templateResolver.setSuffix(".xml");        templateResolver.setCharacterEncoding("UTF-8");        // HTML是默认值, 为了清楚起见, 在此处添加。        templateResolver.setTemplateMode(TemplateMode.XML);        return templateResolver;    }}
使用@Resource注入:@Resource(name = "myTemplateEngine") private SpringTemplateEngine springTemplateEngine;@Autowired注入:@Autowired @Qualifier("myTemplateEngine") private SpringTemplateEngine springTemplateEngine1Html;配置文件会失效——配置类优先使用:根据传入的type不同。使用的模板是不同的。
package com.cc.ewd.web.controller;import com.cc.ewd.vo.Msg4Vo;import org.springframework.beans.factory.annotation.Qualifier;import org.springframework.web.bind.annotation.GetMapping;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestParam;import org.springframework.web.bind.annotation.RestController;import org.thymeleaf.context.Context;import org.thymeleaf.spring5.SpringTemplateEngine;import javax.annotation.Resource;import javax.servlet.ServletOutputStream;import javax.servlet.http.HttpServletResponse;import java.io.ByteArrayInputStream;import java.io.ByteArrayOutputStream;import java.io.IOException;import java.net.URLEncoder;import java.nio.charset.StandardCharsets;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;/** thymeleaf导出的实现 * @author CC * @since 2023/5/4 0025 */@RestController@RequestMapping("/thymeleafExport")public class ThymeleafExport {//    @Resource//    private SpringTemplateEngine springTemplateEngine;    @Resource(name = "myTemplateEngine")    private SpringTemplateEngine springTemplateEngine1Html;    @Resource(name = "myTemplateEngine2")    private SpringTemplateEngine springTemplateEngine2Xml;    /** <p>原理</p>     * <ol>     *     <li>相当于把word文件转为xml或者html,然后修改其中的值再以xml、html下载成word文件</li>     *     <li>这个方法只能运行一次,因为对ClassLoaderTemplateResolver的设置是一次性的</li>     *     <li>所以需要将ClassLoaderTemplateResolver设置成单例:配置Bean。</li>     *     <li>doc或docx的模板别使用WPS的文档,使用微软的office新建word文档,然后转为xml或html</li>     *     <li>可以导出xml、也可以导出html:建议使用xml</li>     * </ol>     */    @GetMapping    public void thymeleafExport(@RequestParam String type, HttpServletResponse response){        String fileName = "第二个thy的文件";        //一、设置数据(可以用map,也可以用对象)        Map<String,Object> map = new HashMap<>();        //1普通文本参数        map.put("msg1","我是参数1111");        map.put("msg2","我是参数2222");        map.put("msg3","我是参数3333");        //2if-else参数        map.put("thIf1","1");        map.put("thIf2","2");        //3循环:构建集合参数,用于表格:可以是Map;可以是对象//        List<Map<String,Object>> msg4Vos = new ArrayList<>();        List<Msg4Vo> msg4Vos = new ArrayList<>();        for (int i = 0; i < 10; i++) {            //1map方式//            Map<String,Object> map4 = new HashMap<>();//            map4.put("l1","列1-" + i);//            map4.put("l2","列2-" + i);//            map4.put("l3","列3-" + i);//            map4.put("l4","列4-" + i);//            msg4Vos.add(map4);            //2对象方式            Msg4Vo vo = new Msg4Vo();            vo.setL1("列1-" + i);            vo.setL2("列2-" + i);            vo.setL3("列3-" + i);            vo.setL4("列4-" + i);            msg4Vos.add(vo);        }        map.put("msg4Vos",msg4Vos);        //4设置数据        Context context = new Context();        context.setVariables(map);        //写入输入(模板名称,数据):1:html;2:xml        String process = "";        if ("1".equals(type)){            process = springTemplateEngine1Html.process("thymeleaf_3_wps", context);        }else if ("2".equals(type)){            process = springTemplateEngine2Xml.process("thymeleaf_4_wps_final", context);        }        //二、下载        //建议下载成doc的。不然微软的office可能打不开        try {            byte[] bytes = process.getBytes(StandardCharsets.UTF_8);//            ByteArrayInputStream inputStream = new ByteArrayInputStream(bytes);//            ByteArrayOutputStream outputStream = getByteArrayOutputStream(inputStream);            response.setCharacterEncoding("utf-8");            response.setContentType("application/msword");            response.setHeader("Access-Control-Expose-Headers","Content-disposition");            response.setHeader("Content-disposition","attachment; filename=" +                    URLEncoder.encode(fileName.concat(".doc"), "UTF-8"));            ServletOutputStream out = response.getOutputStream();            //两种方式都可以:用bytes好些//            out.write(outputStream.toByteArray());            out.write(bytes);            out.flush();            out.close();        }catch(Exception e){            e.printStackTrace();        }    }    /** 将 ByteArrayInputStream 拷贝成 ByteArrayOutputStream     *  将 字节数组输入流 拷贝成 字节数组输出流     */    public static ByteArrayOutputStream getByteArrayOutputStream(ByteArrayInputStream inputStream) throws IOException {        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();        byte[] buffer = new byte[1024];        int length;        while ((length = inputStream.read(buffer)) != -1) {            outputStream.write(buffer, 0, length);        }        return outputStream;    }}
四、总结甚至可以结合Thymeleaf模板技术和ApachePoi技术。先使用Thymeleaf模板技术替换Word文档中的值。然后得到完整的HTML格式的Word文档然后使用ApachePoi导出HTML格式的Word文档

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