java动态解析文本模板

import java.util.HashMap;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;


public class Msg {
	 /**
     * 根据模板及参数获得短信内容
     * @return
     */
    public static String getContent(String tempalte, Map<String,String> parameters){
        Pattern p = Pattern.compile("(\\{([a-zA-Z]+)\\})");
        Matcher m = p.matcher(tempalte);
        StringBuffer stringBuffer = new StringBuffer();
        while (m.find()){
            String key = m.group(2);
            String value = null;
            if (parameters.containsKey(key)){
                value = parameters.get(key);
            }
            value = (value == null) ? "" : value;
            m.appendReplacement(stringBuffer,value);
        }
        m.appendTail(stringBuffer);
        return stringBuffer.toString();
    }
	/**
	 * @author 石冬冬-Heil Hilter(dd.shi02@zuche.com)
	 * @date 2016-11-8 下午7:57:12
	 * @param args
	 */
	public static void main(String[] args) {
		String tempalte = "{name}你好,今年{age}岁！";
		Map<String,String> parameters = new HashMap<String, String>();
		parameters.put("name", "chris");
		parameters.put("age", "22");
		System.out.println(getContent(tempalte, parameters));

	}

}