spring mvc 自动封装json

spring mvc里面的@ResponseBody会直接将对象javabean等对象直接解析成json的。

public @ResponseBody List<Building> json1(Building building , HttpServletResponse response,PrintWriter out) {
        System.err.println(building.getNametext());
        List<Building> list = buildingService.selectByParam1(building);    
        return list;
    }