Response乱码的解决方法

protected void doPost(HttpServletRequest request, HttpServletResponse response)   

    throws ServletException, IOException {  
    //告诉servlet用UTF-8转码
    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");  
    //浏览器用utf8来解析返回的数据 
    response.setContentType("text/html; charset=UTF-8");  

}