1、引用的jar包
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>4.1.0</version>
</dependency>
2、核心代码
String html = "<div>测试内容</div";
POIFSFileSystem poifs = null;
FileOutputStream ostream = null;
ByteArrayInputStream bais = null;
String uuid = "测试.doc";
File file = null;
try {
//HTML内容必须被<html><body></body></html>包装
fileParam.setcContent("<html><body>" + html + "</body></html>");
byte[] b = fileParam.getcContent().getBytes();
bais = new ByteArrayInputStream(b);
poifs = new POIFSFileSystem();
DirectoryEntry directory = poifs.getRoot();
//WordDocument名称不允许修改
directory.createDocument("WordDocument", bais);
ostream = new FileOutputStream(uuid);
poifs.writeFilesystem(ostream);//当前目录下就生成了一个测试.doc的文档
} catch (Exception e) {
logger.error("exception is {}", e);
} finally {
IOUtils.closeQuietly(poifs);
IOUtils.closeQuietly(ostream);
IOUtils.closeQuietly(bais);
try {
FileUtils.forceDelete(file);
} catch (Exception e2) {
}
}
原文：https://www.cnblogs.com/jiehanshi/p/11121782.html