JAVA FreeMarker工具类

FreeMarkerUtil.java

package pers.kangxu.datautils.utils;

import java.io.File;
import java.io.StringWriter;
import java.util.Map;

import pers.kangxu.datautils.common.Constants;

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

/**
 * 
 * <b>
 *    FreeMarkerUtil 模板工具
 * </b>
 * @author kangxu
 *
 */
public class FreeMarkerUtil {
    
    /**
     * 
     * TODO
     * <br>
     * @author kangxu2 2016-11-23
     *
     * @param fltFile  flt文件名
     * @param templatePath flt文件路径   src/template
     * @param datas 数据集合
     * @return
     */
    public static String geneFileStr(String fltFile,String templatePath,Map<String, Object> datas){
        
        Configuration cfg = new Configuration();
        try {
            cfg.setDirectoryForTemplateLoading(new File(templatePath));
            Template template = cfg.getTemplate(fltFile,Constants.ENCODING);
            template.setEncoding(Constants.ENCODING);
            
            StringWriter out = new StringWriter();  
            
            template.process(datas, out);  
            
            out.flush();
            out.close();
            
            return out.getBuffer().toString();
            
            
        } catch (Exception e) {
            e.printStackTrace();
        } 
        
        return null;
        
    }
 
}

 使用方式 FreeMarkerUtilTester.java

package pers.kangxu.datautils.test;

import java.util.HashMap;
import java.util.Map;

import pers.kangxu.datautils.common.verifycode.BuildVerifyCode;
import pers.kangxu.datautils.utils.FreeMarkerUtil;

public class FreeMarkerUtilTester {

    public static void main(String[] args) {
        Map<String, Object> datas = new HashMap<String, Object>();
        datas.put("code", BuildVerifyCode.generateVerifyCode(4));
        System.out.println(FreeMarkerUtil.geneFileStr("sms.flt","template",datas));
    }
}

sms.flt

 您的验证码是：${code}。请不要把验证码泄露给其他人。 

运行结果