(44) odoo中的WebService

* 前言
   erp系统会和其它系统进行对接，这时就要接口，官方给出的是两解决方案
  
* XML-RPCLibrary
  举例
    import xmlrpclib

    root = 'http://%s:%d/xmlrpc/' % (HOST, PORT) #构建访问的路径

    uid = xmlrpclib.ServerProxy(root + 'common').login(DB, USER, PASS) # 用户登录
    print "Logged in as %s (uid: %d)" % (USER, uid)

    # Create a new note
    sock = xmlrpclib.ServerProxy(root + 'object') #得到一个模型对象
    args = {
        'color' : 8,
        'memo' : 'This is a note',
        'create_uid': uid,
    }
    note_id = sock.execute(DB, uid, PASS, 'note.note', 'create', args) #给对象增加一条记录
   
   
* JSON-RPC Library
   这个目前相对流行，轻量级别的
    import json
    import random
    import urllib2

    # 封装数据处理响应
    def json_rpc(url, method, params):
        data = {
            "jsonrpc": "2.0",
            "method": method,
            "params": params,
            "id": random.randint(0, 1000000000),
        }
        req = urllib2.Request(url=url, data=json.dumps(data), headers={
            "Content-Type":"application/json",
        })
        reply = json.load(urllib2.urlopen(req))
        if reply.get("error"):
            raise Exception(reply["error"])
        return reply["result"]
       
   # 封装请求
    def call(url, service, method, *args):
        return json_rpc(url, "call", {"service": service, "method": method, "args": args})
       
   
    # log in the given database
    url = "http://%s:%s/jsonrpc" % (HOST, PORT)
    uid = call(url, "common", "login", DB, USER, PASS)

    # create a new note
    args = {
        'color' : 8,
        'memo' : 'This is another note',
        'create_uid': uid,
    }
    note_id = call(url, "object", "execute", DB, uid, PASS, 'note.note', 'create', args)
    #可以看出通用性很强
    -----------
    import jsonrpclib # https://pypi.python.org/pypi/jsonrpclib

    # server proxy object
    url = "http://%s:%s/jsonrpc" % (HOST, PORT)
    server = jsonrpclib.Server(url)

    # log in the given database
    uid = server.call(service="common", method="login", args=[DB, USER, PASS])

    # helper function for invoking model methods
    def invoke(model, method, *args):
        args = [DB, uid, PASS, model, method] + list(args)
        return server.call(service="object", method="execute", args=args)

    # create a new note
    args = {
        'color' : 8,
        'memo' : 'This is another note',
        'create_uid': uid,
    }
    note_id = invoke('note.note', 'create', args)
   
    # 上面例子，都是以客户端也是python来举例的，其实客户端有很多语言的