用ftl导出Word

package com.gddxit.waterpower.utils;

import freemarker.template.Configuration;
import freemarker.template.Template;
import freemarker.template.TemplateException;
import sun.misc.BASE64Encoder;

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


public class MDoc {

    private Configuration configuration = null;

    public MDoc() {
        configuration = new Configuration();
        configuration.setDefaultEncoding("utf-8");
    }

    public File createDoc(Map<String, Object> dataMap, String fileName) throws IOException {
        //dataMap 要填入模本的数据文件
        //设置模本装置方法和路径,FreeMarker支持多种模板装载方法。可以重servlet，classpath，数据库装载，
        configuration.setDirectoryForTemplateLoading(new File("/data/klmy/template"));
        //configuration.setClassForTemplateLoading(this.getClass(), "template");
        Template t = null;
        try {
            //plan12.ftl为要装载的模板
            t = configuration.getTemplate("plan12.ftl");
        } catch (IOException e) {
            e.printStackTrace();
        }
        //输出文档路径及名称
        File outFile = new File(fileName);
        Writer out = null;
        FileOutputStream fos = null;
        try {
            fos = new FileOutputStream(outFile);
            OutputStreamWriter oWriter = new OutputStreamWriter(fos, "UTF-8");
            //这个地方对流的编码不可或缺，使用main（）单独调用时，应该可以，但是如果是web请求导出时导出后word文档就会打不开，并且包XML文件错误。主要是编码格式不正确，无法解析。
            //out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(outFile)));
            out = new BufferedWriter(oWriter);
        } catch (FileNotFoundException e1) {
            e1.printStackTrace();
        }

        try {
            t.process(dataMap, out);
            out.close();
            fos.close();
        } catch (TemplateException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return outFile;
    }

    public String getImageStr(String imgFile) {
        InputStream in = null;
        byte[] data = null;
        try {
            in = new FileInputStream(imgFile);
            data = new byte[in.available()];
            in.read(data);
            in.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
        BASE64Encoder encoder = new BASE64Encoder();
        return encoder.encode(data);
    }
}