package com.yc.utils;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.http.HttpServletResponse;

/**
 * 
 * 向客户端输出数据的工具类(操作完后已经关闭流)
 * 
 * @creator heqing
 * @create-time 2011-5-4 上午09:19:37
 */
public class ResponseUtils {

	/**
	 * 输出字符串
	 * @param response
	 * @param str
	 */
	public static void print(HttpServletResponse response, String str) {
		try {
			response.setContentType("text/html;charset=utf-8");
			PrintWriter out = response.getWriter();
			out.print(str);
			out.flush();
			out.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	/**
	 * 输出js脚本
	 * @param response
	 * @param str如 ：alert('世界你好!');
	 */
	public static void printScript(HttpServletResponse response, String str) {
		try {
			response.setContentType("text/html;charset=utf-8");
			PrintWriter out = response.getWriter();
			out.print("<script type='text/javascript'>"+str+"</script>");
			out.flush();
			out.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
	
	/**
	 * 向页面输出json
	 * 
	 * **/
	public static void printJson(HttpServletResponse resp,String str){
		try {
			resp.setContentType("application/json;charset=utf-8");
			PrintWriter out = resp.getWriter();
			out.print(str);
			out.flush();
			out.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

}