需要引入word模板的依赖，pom增加如下jar报包依赖
<!--word模板-->
<dependency>
<groupId>com.deepoove</groupId>
<artifactId>poi-tl</artifactId>
<version>1.9.1</version>
</dependency>但测试的时候发现，word模板填充时报错
com.deepoove.poi.exception.ResolverException: Compile template failed
at com.deepoove.poi.XWPFTemplate.compile(XWPFTemplate.java:116)
at cn.org.bjca.ywq.his.ca.controller.OrderInfoController.renderTemplate(OrderInfoController.java:307)
at cn.org.bjca.ywq.his.ca.controller.OrderInfoController.downloadCaReport(OrderInfoController.java:286)
at cn.org.bjca.ywq.his.ca.controller.OrderInfoController$$FastClassBySpringCGLIB$$5f1b3564.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:771)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:95)
Caused by: java.io.IOException: ZIP entry size is too large or invalid
at org.apache.poi.openxml4j.util.ZipArchiveFakeEntry.<init>(ZipArchiveFakeEntry.java:43)
at org.apache.poi.openxml4j.util.ZipInputStreamZipEntrySource.<init>(ZipInputStreamZipEntrySource.java:53)
at org.apache.poi.openxml4j.opc.ZipPackage.<init>(ZipPackage.java:106)
at org.apache.poi.openxml4j.opc.OPCPackage.open(OPCPackage.java:307)
at org.apache.poi.ooxml.util.PackageHelper.open(PackageHelper.java:47)
at org.apache.poi.xwpf.usermodel.XWPFDocument.<init>(XWPFDocument.java:142)
搜了各种资料，原来maven打包时把resource下的word模板压缩了，导致读取模板文件时失败了。
完整的word模板和下载程序如下：
@RequestMapping(value = "/downloadDocx", method = RequestMethod.GET)
public void downloadDocx(HttpServletResponse response) {
//根据业务查询数据，并组装模板中要替换的params，这里也可以使用guava工具类直接将java dto转换成map
Map<String, Object> params = new HashMap<>();
try {
//模板放在项目的 resource目录下的templates目录，模板里需要替换的变量使用EL表达式标识，比如 {{userName}} 在params中有个key为userName的
ClassPathResource resource = new ClassPathResource("templates\\test.docx");
XWPFTemplate template = renderTemplate(resource.getStream(), params);
response.setContentType("application/octet-stream;charset=utf-8");
response.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode("test", StandardCharsets.UTF_8.name()) + ".docx");
try (OutputStream out = response.getOutputStream()) {
template.writeAndClose(out);
} catch (IOException e) {
logger.error("io异常", e);
}
} catch (Exception e) {
logger.error("下载docx异常", e);
}
}
/**
* 模板替换
* @param templateInputStream
* @param dataMap
* @return
*/
private XWPFTemplate renderTemplate(InputStream templateInputStream, Map<String, Object> dataMap) {
ConfigureBuilder configureBuilder = Configure.builder()
.useSpringEL() // 启用Spring EL表达式 模板中使用 {{}} {{userName}}
.bind("dataTable", new HackLoopTableRenderPolicy()); // 设置循环策略
Configure config = configureBuilder.build();
return XWPFTemplate.compile(templateInputStream, config).render(dataMap);
}参考：java.io.IOException: ZIP entry size is too large or invalid-CSDN博客