json data_return; json return_msg; data_return["msg"] = return_msg什么意思
时间: 2024-03-28 22:40:01 浏览: 90
这段代码使用了nlohmann/json库,其中定义了两个JSON对象:data_return和return_msg。
`data_return["msg"]` 表示在data_return对象中添加了一个名为"msg"的键,它的值为空JSON对象。
`data_return["msg"] = return_msg` 表示将return_msg对象赋值给data_return对象中的"msg"键,即在data_return对象中添加名为"msg"的键值对,并将其值设为return_msg对象。
因此,这段代码的作用是向data_return对象中添加了一个名为"msg"的键值对,它的值是一个空的JSON对象。如果之后给return_msg对象赋值,那么它的值也会被赋给data_return对象中的"msg"键。
相关问题
from flask import Flask, request app = Flask(__name__) @app.route('/example', methods=['POST']) def example(): json_data = request.get_json() # 检查是否成功解析JSON数据 if not json_data: return '无效的JSON数据', 400 # 获取参数值 param1 = json_data.get('param1') param2 = json_data.get('param2') # 进行其他处理... return '成功' if __name__ == '__main__': app.run(),帮我转成fastapi框架
Sure, here is the equivalent code in FastAPI framework:
```python
from fastapi import FastAPI, HTTPException
from pydantic import BaseModel
app = FastAPI()
class ExampleRequest(BaseModel):
param1: str
param2: int
@app.post('/example')
async def example(request: ExampleRequest):
# 获取参数值
param1 = request.param1
param2 = request.param2
# 进行其他处理...
return {'msg': '成功'}
@app.exception_handler(HTTPException)
async def http_exception_handler(request, exc):
return JSONResponse(content={"detail": exc.detail}, status_code=exc.status_code)
if __name__ == '__main__':
import uvicorn
uvicorn.run(app, host='0.0.0.0', port=8000)
```
Note that we are using Pydantic to define the request body schema, and we are returning a JSON response with the "msg" key. Also, we have defined an exception handler to return the error messages in a JSON format.
def get_all_event_json(server,area_id,function,version,cookies): print('Getting all event data.....') total_data = [] last_id = 0 is_end = False data_instant = data_dict.copy() data_instant['area'] = area_id data_instant['dtu_msg[query_type]'] = 6 data_instant['dtu_msg[res_type]'] = res_type_dict[function] data_instant['res_type'] = res_type_dict[function] data_instant['dtu_msg[limit]'] = 50 data_instant['dtu_msg[order_type]'] = 1 current_index = 0 last_len = 0 while (not is_end): current_index = current_index + last_len data_instant['dtu_msg[start_idx]'] = current_index r = requests.post( url_prefix_dict[version][server] + url_infix_dict[version][server] + url_suffix_dict[function], data=data_instant, cookies=cookies) try: result = json.loads(r.text) except: break is_end = result['extends']['is_end'] if function == 'shop': last_len = 50 else: last_len = len(result['rows']) total_data.extend(result['rows']) print('all event data ok') return total_data
这段代码是一个函数,名为 `get_all_event_json`,它的作用是获取某个服务器上的指定区域、指定类型的所有事件数据。这个函数使用了一个 while 循环来不断向服务器请求数据,每次请求的数量限制为 50 条,直到所有数据都被请求完为止。最后,将所有请求到的数据存入一个列表中,然后返回这个列表。这个函数的参数包括服务器、区域、事件类型、版本和 cookie 等信息。
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