content: /**
   * * Copyright &copy; 2015-2020 <a href="https://gitee.com/JeeHuangBingGui/JeeSpring">JeeSpring</a> All rights reserved..
   */
  package com.jeespring.common.utils;
  
  import java.io.IOException;
  import java.io.StringReader;
  import java.io.StringWriter;
  import java.util.Map;
  
  import org.springframework.core.io.DefaultResourceLoader;
  import org.springframework.core.io.Resource;
  
  import freemarker.template.Configuration;
  import freemarker.template.Template;
  
  /**
   * FreeMarkers工具类
   * @author 黄炳桂 516821420@qq.com
   * @version 2013-01-15
   */
  public class FreeMarkers {
  
  	public static String renderString(String templateString, Map<String, ?> model) {
  		try {
  			StringWriter result = new StringWriter();
  			Template t = new Template("name", new StringReader(templateString), new Configuration());
  			t.process(model, result);
  			return result.toString();
  		} catch (Exception e) {
  			throw Exceptions.unchecked(e);
  		}
  	}
  
  	public static String renderTemplate(Template template, Object model) {
  		try {
  			StringWriter result = new StringWriter();
  			template.process(model, result);
  			return result.toString();
  		} catch (Exception e) {
  			throw Exceptions.unchecked(e);
  		}
  	}
  
  	public static Configuration buildConfiguration(String directory) throws IOException {
  		Configuration cfg = new Configuration();
  		Resource path = new DefaultResourceLoader().getResource(directory);
  		cfg.setDirectoryForTemplateLoading(path.getFile());
  		return cfg;
  	}
  	
  	public static void main(String[] args) throws IOException {
  //		// renderString
  //		Map<String, String> model = com.google.common.collect.Maps.newHashMap();
  //		model.put("userName", "calvin");
  //		String result = FreeMarkers.renderString("hello ${userName}", model);
  //		System.out.println(result);
  //		// renderTemplate
  //		Configuration cfg = FreeMarkers.buildConfiguration("classpath:/");
  //		Template template = cfg.getTemplate("testTemplate.ftl");
  //		String result2 = FreeMarkers.renderTemplate(template, model);
  //		System.out.println(result2);
  		
  //		Map<String, String> model = com.google.common.collect.Maps.newHashMap();
  //		model.put("userName", "calvin");
  //		String result = FreeMarkers.renderString("hello ${userName} ${r'${userName}'}", model);
  //		System.out.println(result);
  	}
  	
  }
  