后台java代码

HttpServletResponse response = servletActionContext.getResponse();

response.setContenType("text/html;charset=utf-8");

PrintWriter out=response.getWriter();

Gson gson=new Gson();

String model_Json=gson.toJson(model);

out.print(model_Json);

前台js代码

$.post(url,function(data){

var model=eval("("+data+")");

//model.属性名获取值

})