「POST 数据」通常指 POST 时 body 中的数据。
而 QueryString (URL)中也有可以带参数(通常是 GET 时的参数)。如果 POST 时同时存在 QueryString 和 body data,那么 get_argument 获取得到的其实是 QueryString 中的数据,而不是 body 中的数据。
get_body_argument 这个方法是获取 body 中的参数值。
而 QueryString (URL)中也有可以带参数(通常是 GET 时的参数)。如果 POST 时同时存在 QueryString 和 body data,那么 get_argument 获取得到的其实是 QueryString 中的数据,而不是 body 中的数据。
get_body_argument 这个方法是获取 body 中的参数值。
分页和查询:
class AjaxLockListHandler(BaseHandler):
# @tornado.web.authenticated
def post(self):
try:
req_data = json.loads(self.request.body.decode())
except Exception as e:
print("AjaxLockListHandler handle POST request error: %s, it should be the data from client is illegal" % str(e))
self.write(REQUEST_ERROR)
return print("AjaxLockListHandler receive POST request: %s" % req_data) params = {}
# TODO: 分页和查询参数合法性检查
# ——分页所需数据——
# 起始位置,默认为0
if "start" in req_data:
params["offset"] = req_data["start"]
else:
params["offset"] = 0
# 每页显示多少数据,默认为10
if "limit" in req_data:
params["limit"] = req_data["limit"]
else:
params["limit"] = 10
# dataTable校验用的参数
if "draw" in req_data:
draw = req_data["draw"]
else:
draw = 0 # ——查询所需数据——
# product_ver字段数据,REST需要string类型,可有可无,若没有表示不关心该项数据,下同
if "product_ver" in req_data:
params["product_ver"] = req_data["product_ver"]
# lock_id字段数据,REST需要uint32类型数据,可有可无
if "lock_id" in req_data:
params["lock_id"] = int(req_data["lock_id"])
# firmware_ver字段数据,REST需要string类型数据,可有可无
if "firmware_ver" in req_data:
params["firmware_ver"] = req_data["firmware_ver"]
# corp_id字段数据,REST需要int类型数据,可有可无
if "corp_id" in req_data:
params["corp_id"] = int(req_data["corp_id"])
# master_id字段数据,REST需要int型数据,可有可无
if "master_id" in req_data:
params["master_id"] = int(req_data["master_id"])
# mac字段数据,REST需要string类型数据,可有可无
if "mac" in req_data:
params["mac"] = req_data["mac"]
# cat_eye字段数据,REST需要int型数据,可有可无
# 【注意】:数据库中该字段为boolean类型,表示有无猫眼,但查询的时候可能不关心该项数据,所以此处定义为int类型
if "cat_eye" in req_data:
params["cat_eye"] = int(req_data["cat_eye"])
# has_ap字段数据,REST需要int型数据,可有可无
# 【注意】:数据库中该字段为boolean类型,表示有无猫眼,但查询的时候可能不关心该项数据,所以此处定义为int类型
if "has_ap" in req_data:
params["has_ap"] = int(req_data["has_ap"]) p_str = json.dumps(params, separators=(',', ':'), sort_keys=True) + "+" + APP_SECRET
sign = md5(p_str)
params["sign"] = sign
print("AjaxLockListHandler handle POST request,request_body: %s" % params) content, err = http.fetch("/admin/lock/list", json.dumps(params))
if err is not None:
self.write(SERVER_ERROR)
elif len(content) == 0:
table_data = json.dumps({"draw": draw, "recordsTotal": 0, "data": "", "recordsFiltered": 0})
self.write(table_data)
else:
js = json.loads(content.decode())
if "data" in js:
data = js["data"]
table_data = json.dumps({"draw": draw, "recordsTotal": data["total"], "data": data["locks"], "recordsFiltered": data["total"]})
self.write(table_data)
# self.render('lock/list.html', data=table_data)
else:
self.write(SERVER_ERROR)
删除:
class AjaxLockDeleteHandler(BaseHandler):
# @tornado.web.authenticated
def post(self):
try:
req_data = json.loads(self.request.body.decode())
except Exception as e:
print(
"AjaxLockDeleteHandler handle POST request error: %s, it should be the data from client is illegal" % str(
e))
self.write(REQUEST_ERROR)
return if "lock_id" in req_data:
lock_id = int(req_data["lock_id"])
# lock_id合法性检查
if lock_id <= 0:
self.write(REQUEST_ERROR)
return
else:
print("AjaxLockDeleteHandler receive request of lock_id: %s" % lock_id)
params = {"lock_id": lock_id}
p_str = json.dumps(params, separators=(',', ':'), sort_keys=True) + "+" + APP_SECRET
sign = md5(p_str)
params["sign"] = sign content, err = http.fetch("/admin/lock/delete", json.dumps(params))
print("====", content)
if err is not None:
print("AjaxLockDeleteHandler handle post request to REST server error: %s" % str(err))
if err.code == 400:
self.write(REQUEST_ERROR)
else:
self.write(SERVER_ERROR)
else:
js = json.loads(content.decode())
if "data" in js:
data = js["data"]
table_data = json.dumps({"data": data})
self.write(table_data)
else:
self.write(REQUEST_ERROR)
修改:
class AjaxLockUpdateHandler(BaseHandler): def post(self):
try:
req_data = json.loads(self.request.body.decode())
except Exception as e:
print(
"AjaxLockUpdateHandler handle POST request error: %s, it should be the data from client is illegal" % str(
e))
self.write(REQUEST_ERROR)
return # 添加descr?
if "lock_id" in req_data and "name" in req_data:
if req_data["lock_id"] <= 0 or req_data["name"] == "":
print("AjaxLockUpdateHandler handle POST request error: lock_id is illegal or name is NULL")
self.write(REQUEST_ERROR)
else:
params = {"lock_id": req_data["lock_id"], "name": req_data["name"]}
p_str = json.dumps(params, separators=(',', ':'), sort_keys=True) + "+" + APP_SECRET
sign = md5(p_str)
params["sign"] = sign
print(params)
content, err = http.fetch("/admin/lock/update", json.dumps(params))
if err is not None:
print("AjaxLockUpdateHandler handle post request to REST server error: %s" % str(err))
if err.code == 400:
self.write(REQUEST_ERROR)
else:
self.write(SERVER_ERROR)
else:
print("AjaxLockUpdateHandler handle post request to REST server success")
self.write("{}")
跟dataTable+分页。。。js是相关联的