request.setCharacterEncoding("utf8");
response.setContentType("text/html;charset=UTF-8");
//解析url参数
Map<String,String> params = ServletUtil.getParamters(request);
//获取到service
Service s = (Service)this.ctx.getBean(params.get("s"));
params.remove("s");
try {
s.execute(params,request,response);
} catch (Throwable e) {
e.printStackTrace();
//throw new ServletException(e.getMessage());
}