1、前言

　　今天需要實現一個Pyhton的http服務，與Web的JS進行交換。

2、實例代碼

　　支持HEAD、GET、POST方法，將參數轉換為JSON格式，返回結果以JSON字符串返回。

import time
import BaseHTTPServer
import urllib 
import json
import base64

HOST_NAME = ‘127.0.0.1‘ 
PORT_NUMBER = 8080
CONIFRM_PATH = ‘/tmp‘

class HttpHandler(BaseHTTPServer.BaseHTTPRequestHandler):
    
 
def _set_headers(self):
        self.send_response(200)
        self.send_header(‘Content-type‘, ‘text/html‘)
        self.end_headers()

    def _json_encode(self, data):
        array = data.split(‘&‘)
        json_data = {}
        for item in array:
            item = item.split(‘=‘, 1)
            json_data[item[0]] 
 
= item[1]
        return json_data

    def _get_handler(self, data):
        json_data = self._json_encode(data)

    def _post_handler(self, data):
        retVal = {}
        json_data = self._json_encode(data)
        file_name = json_data[‘FileName‘]
        file_data = base64.b64decode(json_data[‘
 
FileData‘]) 
        file_path = "%s/%s"% (CONIFRM_PATH, file_name)
        fd = open(file_path, ‘w‘)
        fd.write(file_data)
        fd.close()
        retVal["RetCode"] = 0
        return json.dumps(retVal)

    def do_HEAD(self):
        self._set_headers()

    def do_GET(self):
        self._set_headers()
        #get request params
        path = self.path  
        query = urllib.splitquery(path)  
        self._get_handler(query[1]);

    def do_POST(self):
        self._set_headers()
        #get post data
        post_data = self.rfile.read(int(self.headers[‘content-length‘]))  
        post_data = urllib.unquote(post_data).decode("utf-8", ‘ignore‘) 
        retStr = self._post_handler(post_data)
        self.wfile.write(retStr)

if __name__ == ‘__main__‘:
    server_class = BaseHTTPServer.HTTPServer
    httpd = server_class((HOST_NAME, PORT_NUMBER), HttpHandler)
    print time.asctime(), "Server Starts - %s:%s" % (HOST_NAME, PORT_NUMBER)
    try:
        httpd.serve_forever()
    except KeyboardInterrupt:
        pass
    httpd.server_close()
    print time.asctime(), "Server Stops - %s:%s" % (HOST_NAME, PORT_NUMBER)

使用NodeJS默認測試如下：

var request = require(‘request‘);
// Set the headers
var headers = {
    ‘User-Agent‘:       ‘USSL Agent/0.0.1‘,
    ‘Content-Type‘:     ‘application/x-www-form-urlencoded‘
}

// Configure the request
var options = {
    url: ‘http://127.0.0.1:8080/‘,
    method: ‘GET‘,
    headers: headers,
    qs: {‘Method‘:‘Put‘,‘FileName‘: ‘test.doc‘}
}

// Start the request
request(options, function (error, response, body) {
    if (!error && response.statusCode == 200) {
        console.log(body)
    }
})

var options = {
    url: ‘http://127.0.0.1：8080/‘,
    method: ‘POST‘,
    headers: headers,
    form: {‘FileName‘: ‘test-confirm.txt‘, ‘FileData‘: "dGhpcyBpcyBhIGV4YW1wbGU="}
}

request(options, function (error, response, body) {
    if (!error && response.statusCode == 200) {
        console.log(body)
    }
})

Python的HTTP服務實例