nodejs利用thrift与其他语言通信

摘要简介：在一家新公司做电子商务，他们喜欢用java做API服务，前端则是用PHP进行展示，而我本人不是太喜欢Java这种强类型的语言（当然除了做Native APP之外），写个功能略显啰嗦，后面推荐他们用Nodejs实现一些服务，但是他们给我的答案却是No,当我问及其原因时，他们只给我回答：Java是安全可靠的，稳定且跨平台，这句话让我彻底无语，也许一些对nodejs的热爱者也会遇到类似情况…看了@sumory 的文章后，我决定用thrift对Java和Nodejs做通信，废话也讲完了，现在来介绍下怎么使用吧. nodejs thrift地址：https://github.com/apache/thrift/tree/trunk/lib/nodejs

首先需要安装一个nodejs thrift包 npm install thrift --save（ps:我安装的版本是：[email protected]）
需要安装mocha作为thrif文件测试 npm install mocha --save
需要在Java端编译API为Nodejs，命令 thrift --gen js:node thrift_file （ps: java端使用thrift0.6）

实现node.js编写的server API 比如大家通过thrift已经生成gen-nodejs目录，里面包含AccountService和AccountCenter_types文件建立thrift连接文件：

connection.coffee

thrift = require 'thrift'
  module.exports = (settings) ->
    connection = thrift.createConnection settings.host, settings.port
    connection.on "connect", (err) ->
      console.log 'thrift server no start：' + err if err

thrift.coffee

config = require __basename + '/config/config'
connection = require  './connection'
module.exports = connection config.thrift

建立nodejs thrift api lib 文件 users.coffee

thrift = require 'thrift'
user = require __basename + '/helpers/gen-nodejs/AccountService'
usertypes = require __basename + '/helpers/gen-nodejs/AccountCenter_types'
server = require __basename + '/connect/thrift/thrift'
client = thrift.createClient user, server

module.exports =

  registerUser : (data, fn) ->
    data.sex = new usertypes.SexVO(data.sex) if data.sex
    client.registerUser new usertypes.UserVO(data), (err, results) ->
      fn err, results
      
  changePassword : (data..., fn) ->
    client.changePassword data[0], data[1], data[2], (err, results) ->
      fn err, results
      
  getUserByEmail : (email, fn) ->
    client.getUserByEmail email, (err, results) ->
      fn err, results

  getUserById : (userId, fn) ->
    client.getUserById userId, (err, results) ->
      fn err, results

  getUserByNickname : (nickname, fn) ->
    client.getUserByNickname nickname, (err, results) ->
      fn err, results

建立好thrift的users.coffee，我们可以建立user API外部接口，以下是routers.coffee文件

app = require './app'
# OAuth
app.use '/oauth', require './routes/oauth'

# app.use '/baby', require './routes/baby'
app.use '/baby_api', require './routes/baby_api'

建立routers文件夹，在routers文件夹下建立baby_api文件夹,然后这里分别建立index.coffee和users.coffee文件 index.coffee (router 列表文件)

express = require 'express'
module.exports = app = express()

# User Accounts API
users = require './users'
app.post '/users/register', users.registerUser
app.post '/users/changepassword', users.changePassword

在mocha中建立测试文件：

users = require __basename + '/lib/thrift/users'
test = 
  id : 17689
  email : 'fioman[@qq](/user/qq).com'

describe 'getUserByEmail[@account](/user/account)', ->
  it 'should get many acounts info', (done) ->
    users.getUserByEmail test.email, (err, results) ->
      throw err if err
      results.should.have.property('email')
      results.should.be.json
      results.id.should.be.a 'number'
      results.email.should.be.a 'string'
      results.email.should.be.equal test.email
      done()


describe 'getUserById[@account](/user/account)', ->
  it 'should get many acounts info', (done) ->
    users.getUserById test.id, (err, results) ->
      throw err if err
      results.should.have.property('id')
      results.should.be.json
      results.id.should.be.a 'number'
      results.email.should.be.a 'string'
      results.id.should.be.equal test.id
      done()

describe 'getUserByNickname[@account](/user/account)', ->
  it 'should get many acounts info', (done) ->
    users.getUserByNickname 'fioman', (err, results) ->
      throw err if err
      results.should.have.property('nickname')
      results.should.be.json
      results.id.should.be.a 'number'
      results.email.should.be.a 'string'
      results.nickname.should.be.equal 'fioman'
      done()

成功后先npm test一遍目前项目托管在oschina git中 http://git.oschina.net/ym/baby_mobile_api