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A Simple Tool Operations Class
There is a newer version: 1.3.0.5.RELEASE
package com.luues.util.freemarker;

import com.luues.util.logs.LogUtil;
import com.luues.util.uuid.JUUID;
import freemarker.template.Configuration;
import freemarker.template.Template;
import freemarker.template.TemplateException;
import javax.servlet.http.HttpServletRequest;
import java.io.*;
import java.util.Map;

/**
 * 生成freemarker模板类
 */
public class FreemarkerUtil {

    private static Configuration configuration = null;
    private final static String freemarker = "/freemarker/temp";
    static {
        configuration = new Configuration();
        configuration.setDefaultEncoding("UTF-8");
    }

    /**
     * 填充内容并获取ftl模板里面的内容
     *
     * @param file     ftl文件上级目录
     * @param dataMap
     * @return
     */
    public String getTemplateContent(HttpServletRequest request, File file, Map dataMap) {
        Template template = null;
        try {
            configuration.setDirectoryForTemplateLoading(new File(file.getParent()));
        } catch (IOException e2) {
            e2.printStackTrace();
        }
        try {
            template = configuration.getTemplate(file.getName());
        } catch (IOException e) {
            e.printStackTrace();
        }
        String outPath = request.getRealPath(freemarker);
        File outFile = new File(outPath);
        if (!outFile.exists()) {
            outFile.mkdirs();
        }
        String outName = JUUID.getShortUUID() + ".doc";
        outFile = new File(outPath, outName);
        if (!outFile.exists()) {
            try {
                outFile.createNewFile();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        Writer out = null;
        FileOutputStream fos = null;
        try {
            fos = new FileOutputStream(outFile);
            OutputStreamWriter oWriter = null;
            try {
                oWriter = new OutputStreamWriter(fos, "UTF-8");
            } catch (UnsupportedEncodingException e) {
                e.printStackTrace();
            }
            out = new BufferedWriter(oWriter);
        } catch (FileNotFoundException e1) {
            e1.printStackTrace();
        }
        try {
            try {
                template.process(dataMap, out);
            } catch (TemplateException e) {
                e.printStackTrace();
            }
            out.close();
            fos.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return outPath + "/" + outName;
    }

    /**
     * 填充内容并获取ftl模板里面的内容
     *
     * @param file     ftl文件上级目录
     * @param dataMap
     * @return
     */
    public String getTemplateContent(String outPath, File file, Map dataMap) {
        Template template = null;
        try {
            configuration.setDirectoryForTemplateLoading(new File(file.getParent()));
        } catch (IOException e2) {
            e2.printStackTrace();
        }
        try {
            template = configuration.getTemplate(file.getName());
        } catch (IOException e) {
            e.printStackTrace();
        }
        File outFile = new File(outPath);
        if (!outFile.exists()) {
            outFile.mkdirs();
        }
        String outName = JUUID.getShortUUID() + ".doc";
        outFile = new File(outPath, outName);
        if (!outFile.exists()) {
            try {
                outFile.createNewFile();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        Writer out = null;
        FileOutputStream fos = null;
        try {
            fos = new FileOutputStream(outFile);
            OutputStreamWriter oWriter = null;
            try {
                oWriter = new OutputStreamWriter(fos, "UTF-8");
            } catch (UnsupportedEncodingException e) {
                e.printStackTrace();
            }
            out = new BufferedWriter(oWriter);
        } catch (FileNotFoundException e1) {
            e1.printStackTrace();
        }
        try {
            try {
                template.process(dataMap, out);
            } catch (TemplateException e) {
                e.printStackTrace();
            }
            out.close();
            fos.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return outPath + "/" + outName;
    }

    /**
     * 导出word表格
     *
     * @param file
     *            模板上级目录
     * @param ftlName
     *            模板名称(必须,模板需放在ftl文件夹里面)
     * @param dataMap
     *            数据(必须)
     * @param outName
     *            输入文件名(可选)
     * @return 文件路径+文件名
     */
    public String createWord(File file, String ftlName, Map dataMap, String outName) {
        Template t = null;
        try {
            configuration.setDirectoryForTemplateLoading(file);
        } catch (IOException e) {
            LogUtil.error(e.getMessage());
        }
        try {
            t = configuration.getTemplate(ftlName); // 文件名
        } catch (IOException e) {
            LogUtil.error(e.getMessage());
        }
        String outPath = file.getPath() + "/" + freemarker;
        File outFile = new File(outPath);
        if (!outFile.exists()) {
            outFile.mkdirs();
        }
        if (null == outName) {
            outName = JUUID.generateUUID() + ".doc";
        }
        outFile = new File(outPath, outName);
        if (!outFile.exists()) {
            try {
                outFile.createNewFile();
            } catch (IOException e) {
                LogUtil.error(e.getMessage());
            }
        }
        Writer out = null;
        FileOutputStream fos = null;
        try {
            fos = new FileOutputStream(outFile);
            OutputStreamWriter oWriter = null;
            try {
                oWriter = new OutputStreamWriter(fos, "UTF-8");
            } catch (UnsupportedEncodingException e) {
                LogUtil.error(e.getMessage());
            }
            out = new BufferedWriter(oWriter);
        } catch (FileNotFoundException e1) {
            LogUtil.error(e1.getMessage());
        }

        try {
            t.process(dataMap, out);
            out.close();
            fos.close();
        } catch (TemplateException e) {
            LogUtil.error(e.getMessage());
        } catch (IOException e) {
            LogUtil.error(e.getMessage());
        }

        return outName;
    }

}