利用freemarker模板导出单个word及多word压缩导出到浏览器下载
1、后端代码
@RequestMapping(value = { "wordMultipleExport" }, method = {RequestMethod.POST})
public Result createMultipleWord(@RequestBody Map params,HttpServletRequest request,HttpServletResponse response)throws Exception {
String fileName = params.get("fileName").toString();
List> templateNameList = (List>) params.get("templateNameList");
Map data = (Map) params.get("data");
String msg="";
System.err.println(fileName+"111");
System.err.println(templateNameList+"222");
System.err.println(data+"333");
if (templateNameList.size()>1) {
//多文件生成zip压缩包
zipUtils.exportMillCertificateWordZip(request, response, templateNameList,data, fileName, "zip");
}else {
//单文件直接生成word文档
try {
zipUtils.exportMillCertificateWord(request, response, data,templateNameList.get(0).get("fileName").toString(), templateNameList.get(0).get("templateName").toString());
msg = "生成word完毕！";
} catch (Exception e) {
msg = "生成word失败！";
e.printStackTrace();
}
}
return Result.error(msg);
} 2.前端代码
//导出数据
exportData () {
var params = {
data : {
project_name : "测试项目", //项目名称
construction_unit : "测试建设单位", //建设单位
edit_date : "2020年3月16日", //编制日期
evaluate_unit : "评价单位" //评价单位
},
templateNameList : [
{fileName:"报告1.doc",templateName:"报告1.ftl"},
{fileName:"报告2.doc",templateName:"报告2.ftl"},
{fileName:"报告3.doc",templateName:"报告3.ftl"}
],
/* templateNameList : [
"1、报告表封面(建设单位公章)--6份.ftl"
], */
fileName : "全部报告"
}
return axios({
method : 'post',
url : baseURL + 'api/wordMultipleExport',
data : params,
responseType : 'blob'
}).then((response) => {
// 处理返回的文件流
const data = new Blob([ response.data ], {
type : "application/msword"
}); //,{type: 'application/vnd.ms-excel;charset=utf-8'}
let fileName = "全部报告.zip";
if (params.templateNameList.length == 1) {
fileName = "全部报告.doc";
}
if (typeof window.chrome !== 'undefined') {
// Chrome version
var link = document.createElement('a');
link.href = window.URL.createObjectURL(data);
link.download = fileName;
link.click();
} else if (typeof window.navigator.msSaveBlob !== 'undefined') {
// IE version
var blob = new Blob([ data ], {
type : 'application/force-download'
});
window.navigator.msSaveBlob(blob, fileName);
} else {
// Firefox version
var file = new File([ data ], fileName, {
type : 'application/force-download'
});
window.open(URL.createObjectURL(file));
}
}
);
}工具类：
/**
*
*/
package shqn.hbxt.modules.environment.utils;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.UUID;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import freemarker.template.Configuration;
import freemarker.template.Template;
/**
* @author hxl
* @date 2020年3月16日 zipUtil.java
*/
public class zipUtils {
private static Configuration configuration = null;
// 这里注意的是利用WordUtils的类加载器动态获得模板文件的位置
private static final String templateFolder = zipUtils.class.getClassLoader().getResource("templates/word/").getPath();
static {
configuration = new Configuration();
configuration.setDefaultEncoding("utf-8");
try {
configuration.setDirectoryForTemplateLoading(new File(templateFolder));
} catch (IOException e) {
e.printStackTrace();
}
}
private zipUtils() {
throw new AssertionError();
}
/**
* 下载单个word文件
* @param request 请求
* @param response 响应
* @param map word结果数据
* @param fileName 结果文件名称（不需要带后缀的）
* @param templateName word模板名称
* @throws IOException
*/
@SuppressWarnings({ "rawtypes", "unchecked" })
public static void exportMillCertificateWord(HttpServletRequest request, HttpServletResponse response, Map dataMap,String fileName,String templateName)
throws IOException {
Template freemarkerTemplate = configuration.getTemplate(templateName);
File file = null;
InputStream fin = null;
ServletOutputStream out = null;
try {
// 调用工具类的createDoc方法生成Word文档
file = createDoc(dataMap, freemarkerTemplate);
fin = new FileInputStream(file);
//根据不同浏览器，对fileName进行不同的编码
String userAgent = request.getHeader("user-agent").toLowerCase();
if (userAgent.contains("msie") || userAgent.contains("like gecko") ) {
// win10 ie edge 浏览器 和其他系统的ie
fileName = URLEncoder.encode(fileName, "UTF-8");
} else {
// fe
fileName = new String(fileName.getBytes("utf-8"), "iso-8859-1");
}
response.setCharacterEncoding("utf-8");
response.setContentType("application/msword");
// 设置浏览器以下载的方式处理该文件名
fileName = fileName+".doc";
response.setHeader("Content-Disposition",
"attachment;filename="+fileName);
out = response.getOutputStream();
byte[] buffer = new byte[512]; // 缓冲区
int bytesToRead = -1;
// 通过循环将读入的Word文件的内容输出到浏览器中
while ((bytesToRead = fin.read(buffer)) != -1) {
out.write(buffer, 0, bytesToRead);
}
} finally {
if (fin != null) {
fin.close();
}
if (out != null) {
out.flush();
out.close();
}
if (file != null) {
file.delete(); // 删除临时文件
}
}
}
/**
* 下载批量word文件到一个rar压缩文件中去
* @param request 请求
* @param response 响应
* @param mapList 存放多个word文件的信息：fileName：文件名（不需要带后缀的）、templateName：模板名称、assessResul：数据结果信息的集合
* @param data 数据结果信息
* @param resultRarFileName 最终下载的压缩文件名称
* @param resultFileType 最终下载的压缩文件格式
* @throws IOException
*/
public static void exportMillCertificateWordZip(HttpServletRequest request, HttpServletResponse response, List> mapList,Map data,String resultRarFileName,String resultFileType)
throws IOException {
File[] docTempleFiles = new File[mapList.size()];
String[] docTempleFileName = new String[mapList.size()];
ZipOutputStream zipOutputStream = null;
try {
//遍历结果数据集合，将word模板生成的文件保存在临时文件夹中，文件记录在数组中；
for(int i = 0; i < mapList.size(); i++) {
String templateName = mapList.get(i).get("templateName").toString();
if(Utils.isNotEmpty(templateName)) {
File docFile = new File(templateFolder+UUID.randomUUID().toString()+".doc");
// 创建 FileInputStream 对象
String fileName = mapList.get(i).get("fileName").toString();
// 调用工具类的createDoc方法生成Word文档
Template freemarkerTemplate = configuration.getTemplate(templateName);
docFile = createZipDoc(data, freemarkerTemplate,docFile);
//将doc文件放到数组中去
docTempleFiles[i] = docFile;
//将doc文件中文名称放到文件名数组中去
docTempleFileName[i] = fileName;
}
}
//根据不同浏览器，对fileName进行不同的编码
String userAgent = request.getHeader("user-agent").toLowerCase();
if (userAgent.contains("msie") || userAgent.contains("like gecko") ) {
// win10 ie edge 浏览器 和其他系统的ie
resultRarFileName = URLEncoder.encode(resultRarFileName, "UTF-8");
} else {
// fe
resultRarFileName = new String(resultRarFileName.getBytes("utf-8"), "iso-8859-1");
}
response.setCharacterEncoding("utf-8");
response.setContentType("application/octet-stream");
// 设置浏览器以下载的方式处理该文件名
resultRarFileName = resultRarFileName+"."+resultFileType;
response.setHeader("Content-Disposition",
"attachment;filename="+resultRarFileName);
zipOutputStream = new ZipOutputStream(response.getOutputStream());
//遍历文件数组，将文件压缩到zip格式的压缩文件中去,
for(int i = 0; i < docTempleFiles.length; i++) {
File docFile = docTempleFiles[i];
FileInputStream fileInputStream = new FileInputStream(docFile);
ZipEntry entry = new ZipEntry(docTempleFileName[i]+".doc");
zipOutputStream.putNextEntry(entry);
int len = -1;
byte[] buffer = new byte[1024];
while ((len = fileInputStream.read(buffer)) != -1) {
zipOutputStream.write(buffer, 0, len);
}
zipOutputStream.closeEntry();
fileInputStream.close();
}
zipOutputStream.flush();
} finally {
if (zipOutputStream != null) {
zipOutputStream.flush();
zipOutputStream.close();
}
System.err.println(docTempleFiles.length+"__________________文件数量");
for(int i = 0; i < docTempleFiles.length; i++) {
System.err.println("删除第"+i+"个文件");
if (docTempleFiles[i] != null) {
docTempleFiles[i].delete();//删除临时doc文件
}
}
}
}
private static File createDoc(Map dataMap, Template template) {
String name = "test.doc";
File f = new File(name);
Template t = template;
try {
// 这个地方不能使用FileWriter因为需要指定编码类型否则生成的Word文档会因为有无法识别的编码而无法打开
Writer w = new OutputStreamWriter(new FileOutputStream(f), "utf-8");
t.process(dataMap, w);
w.close();
} catch (Exception ex) {
ex.printStackTrace();
throw new RuntimeException(ex);
}
return f;
}
private static File createZipDoc(Map dataMap, Template template,File f) {
Template t = template;
try {
// 这个地方不能使用FileWriter因为需要指定编码类型否则生成的Word文档会因为有无法识别的编码而无法打开
Writer w = new OutputStreamWriter(new FileOutputStream(f), "utf-8");
t.process(dataMap, w);
w.close();
} catch (Exception ex) {
ex.printStackTrace();
throw new RuntimeException(ex);
}
return f;
}
}