Servlet 方法

protected void doGet(HttpServletRequest request,
            HttpServletResponse response) throws ServletException, IOException {
        // 设置字符编码,避免中文乱码
        response.setContentType("text/html;Charset=utf-8");
        PrintWriter out = response.getWriter();
        out.println("你好！！！");//写到浏览器
    }

protected void doGet(HttpServletRequest request,
            HttpServletResponse response) throws ServletException, IOException {
        // 网页重定向
        // 设置响应内容类型
        response.setContentType("text/html");
        // 要重定向的新位置
        String site = "http://www.baidu.com";
        response.setStatus(response.SC_MOVED_PERMANENTLY);// SC_MOVED_TEMPORARILY
        response.setHeader("Location", site);
    }

protected void doGet(HttpServletRequest request,
            HttpServletResponse response) throws ServletException, IOException {
        // 自动跳转，可以延时，自动刷新
        response.setStatus(HttpServletResponse.SC_TEMPORARY_REDIRECT);
        response.setHeader("refresh", "3;http://www.baidu.com");
    }