Download java front-end document tools

package com.ry.project.util.commUtil;

import freemarker.template.Configuration;
import freemarker.template.Template;
import freemarker.template.TemplateException;

import java.io.*;
import java.util.Map;

public class WordUtil {
 private Configuration configuration = null;

 public WordUtil() {
 configuration = new Configuration();
 configuration.setDefaultEncoding("utf-8");
 }
//指定下载路径
 public void createDoc(Map<String, Object> dataMap, String fileName) throws UnsupportedEncodingException {
 configuration.setClassForTemplateLoading(this.getClass(), "/");
 Template doct = null;
 try {
 doct = configuration.getTemplate("infoModel.ftl", "utf-8");
 } catch (IOException e) {
 // TODO Auto-generated catch block
 e.printStackTrace();
 }

 File outfile = new File(fileName);

 Writer out = null;
 FileOutputStream outputStream = null;

 try {
 outputStream = new FileOutputStream(outfile);
 OutputStreamWriter oWriter = new OutputStreamWriter(outputStream, "UTF-8");
 out = new BufferedWriter(oWriter);

 } catch (FileNotFoundException e) {
 // Auto-Generated Block the catch the TODO 
e.printStackTrace (); 
} 

 the try { 
doct.process (Datamap, OUT); 
the out.close (); 
outputStream.close (); 

} the catch (TemplateException E) { 
 // the TODO the catch Auto-Generated Block 
e.printStackTrace (); 
} the catch (IOException E) { 
 // the TODO Auto-Generated Block the catch 
e.printStackTrace (); 
} 

} 
// do not specify a download path ,,, default browser to download, the request needs to be set in the code first 
 public void createDoc (the Map <String, Object> Datamap, the OutputStream outfil) throws UnsupportedEncodingException { 

 configuration.setClassForTemplateLoading ( this.getClass (), "/"); 
the System.out.println(">>>>>class:" + this.getClass());
 Template doct = null;
 try {
 doct = configuration.getTemplate("model.ftl", "utf-8");
 } catch (IOException e) {
 e.printStackTrace();
 }
 Writer out = null;
 OutputStreamWriter oWriter = new OutputStreamWriter(outfil, "UTF-8");
 out = new BufferedWriter(oWriter);

 try {
 doct.process(dataMap, out);
 System.out.println("《《《《《《《《下载结束》》》》》");
 out.close();

 } catch (TemplateException e) {
 e.printStackTrace();
 } catch (IOException e) {
 e.printStackTrace();
 }

 }

response.reset (); // remove blank lines textile error 
response.setHeader ( "Access-Control-the Allow-Origin", "*"); // all domains across 
response.setHeader ( "Content-Type", " file application / OCTET-stream; charset = UTF-. 8 "); // binary stream file 
response.setHeader ( " the Content-Disposition ", " Attachment; filename = "+ + endCodeFileName " .doc "); // file name and download 
response.setHeader ( "connection", "Close"); // close the connection request header 
// open settings file browser or download 
the response.setContentType ( "file application / X-downloads");

}