81 lines
2.6 KiB
Python
81 lines
2.6 KiB
Python
#!/usr/bin/python
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# encoding:utf-8
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from curses import nocbreak
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import sys
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from tornado import gen
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from tornado.web import RequestHandler
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from tornado.escape import json_decode, json_encode, utf8
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import json, simplejson
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class BaseHandler(RequestHandler):
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"""解决JS跨域请求问题"""
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def set_default_headers(self):
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# 设置允许请求的方法
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self.set_header('Access-Control-Allow-Methods', 'POST, DELETE, PUT, GET, OPTIONS')
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# Tornado获取请求'origin'的方法
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origin = self.request.headers.get('Origin', '')
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# 设置允许的'origin'，只设置'*'时某些特定情况下会失败故最好优先获取请求的域加入允许组中
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self.set_header('Access-Control-Allow-Origin', origin or "*")
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# 设置是否允许客户端携带证书式访问。通过对 Credentials 参数的设置，就可以保持跨域 Ajax 时的 Cookie
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self.set_header('Access-Control-Allow-Credentials', 'true')
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self.set_header('Access-Control-Allow-Headers', '*')
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self.set_header("Access-Control-Max-Age", 1000)
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self.set_header("Content-type", "application/json")
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# vue一般需要访问options方法， 如果报错则很难继续，所以只要通过就行了，当然需要其他逻辑就自己控制。因为vue访问时，会先执行一次预加载，直接放过就好了
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def options(self):
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# 返回方法1
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self.set_status(204) # 这里的状态码一定要设置200，建议
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self.finish()
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def get_post_data(self, *params):
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post_data = self.request.body_arguments
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post_data = {x: post_data.get(x)[0].decode("utf-8") for x in post_data.keys()}
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if not post_data:
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post_data = self.request.body.decode('utf-8')
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post_data = simplejson.loads(post_data)
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print("post_data", post_data)
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valus = {}
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msg = ''
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for key in params:
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if key in post_data:
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valus[key] = post_data[key]
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else:
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msg = key + ' not found'
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break
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return msg, valus
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def get_get_data(self, *params):
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valus = {}
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msg = ''
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for key in params:
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value = self.get_argument(key, None)
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if value != None:
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valus[key] = value
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else:
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msg = key + ' not found'
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break
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return msg, valus
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def error(self, code, msg):
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result = {
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'status': False,
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'code': code,
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'msg': msg
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}
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self.write(json_encode(result))
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