service端：

BaseResponse对象描述返回格式，如：

{  "code": 1,  "message": "成功查询到该用户信息",  "data": {    "name": "wuliao",    "lover": "rose",    "sex": 1,    "email": "wuliao@gmail.com"  }}

DatumResponse与DataResponse继承BaseResponse对象分别用来包装单个对象与对象list；

修改Model类增加新方法：

public DatumResponse getById(String id){     DatumResponse response = new DatumResponse();     M modelClass = null;        if (StringUtil.isNotEmptyOrNull(id))          modelClass = findById(id);        if (modelClass == null) {            response.setCode(Code.FAIL).setMessage(getClass().getName()+" is not found");        } else {            response.setDatum(modelClass);        }     return response;    }        public DataResponse getList(String sql, Object... paras){     DataResponse resp = new DataResponse();  List
    
      result = null;        if (paras!=null)          result = find(sql,paras);                            if (result == null || result.size() == 0) {            resp.setMessage("未查询到数据");        } else {            resp.setMessage("success");            resp.setData(result);        }  return resp;    }        public DatumResponse getFirst(String sql, Object... paras){     DatumResponse response = new DatumResponse();     M modelClass = null;        if (paras!=null)          modelClass = findFirst(sql, paras);        if (modelClass == null) {            response.setCode(Code.FAIL).setMessage(getClass().getName()+" is not found");        } else {            response.setDatum(modelClass);        }     return response;    }
    

    在controller中返回封装对象即可，如：

/**     * 根据id号查询单个用户     */ public void getEmp() {     renderJson(Emp.dao.getUserById(getPara("userId")));    }    /**     * 查询某机构用户列表     */    public void getUserListOfOrg() {     renderJson(Emp.dao.getUserListOfOrg(getPara("orgId")));    }

portal端：

主要是jackson的解析需要注意ObjectMapper的一些设置，如：

ObjectMapper objectMapper = Jackson.getJson().getObjectMapper();        objectMapper.setPropertyNamingStrategy(PropertyNamingStrategy.CAMEL_CASE_TO_LOWER_CASE_WITH_UNDERSCORES);        objectMapper.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false);        objectMapper.setSerializationInclusion(Include.NON_NULL);        objectMapper.getDeserializationConfig().withoutFeatures(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);        objectMapper.setDateFormat(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"));                            objectMapper.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);        objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);        objectMapper.configure(com.fasterxml.jackson.core.JsonParser.Feature.ALLOW_SINGLE_QUOTES, true);

另一点需要注意的是单对象的转换与list的对象转稍有差异：

单对象：

return objectMapper.readValue(jsonString, type);

对象list:

TypeFactory t = TypeFactory.defaultInstance();return objectMapper.readValue(jsonString,t.constructCollectionType(ArrayList.class,type));

 备注：参考了空谷幽兰的设计，TKS