抓取百度翻译时，浏览器发送的http请求。

模拟这个发送请求，获取翻译结果。

python代码：

#!/usr/bin/env python
#coding:utf-8
#Author:liushsh

import sys
import logging
import logging.config
import re
import cookielib
import urllib,urllib2
import random
import json

logging.config.fileConfig("conf/logger.conf")
logger = logging.getLogger('root')

def Translation(en_str,zh_str):
	# set cookie process
	cj = cookielib.CookieJar()
	cookie_support = urllib2.HTTPCookieProcessor(cj)
	opener = urllib2.build_opener(cookie_support, urllib2.HTTPHandler)
	urllib2.install_opener(opener)

	# simulation browse load host url,get cookie
	# http://fanyi.baidu.com/v2transapi?from=en&to=zh&query=hello%20world&transtype=hash
	baidu_translation='''http://fanyi.baidu.com/v2transapi'''
	post_param={'from':'en','to':'zh','query':en_str,'transtype':'hash'}
	post_data=urllib.urlencode(post_param)

	hostUrl = baidu_translation 
	domain = urllib2.Request(hostUrl,post_data)
	f = urllib2.urlopen(domain)
	html = f.read()
	#logger.info("json:[%s]"%(html))

	j = json.loads(html)
	if j['trans_result']['data'][0]['dst'] != None:
		zh_str[0] = j['trans_result']['data'][0]['dst']
		logger.info("[%s]==>[%s]"%(en_str,zh_str[0]))
		return True
	return False

def main():
	argc=len(sys.argv)
	if argc < 2:
		print "Usage:%s 'hello world'"%(sys.argv[0])
		exit(0)

	for en_str in sys.argv[1:len(sys.argv)]:
		try:
			zh_str = [""]
			Translation(en_str,zh_str)
			print "[%s]==>[%s]"%(en_str,zh_str[0])
		except urllib2.URLError,e:
			logger.error("[except:%s]"%(e))
		except Exception,e1:
			logger.error("[except:%s]"%(e1))

if __name__ == "__main__":
	main()

运行结果：

liushsh@liushsh:~/python/http_operate/baidu$ python baidu_en_zh_v1.0.py 'hello world' 'world hello'
[hello world]==>[你好世界]
[world hello]==>[世界你好]

现在只做了英文翻译成中文，稍微改下

post_param={'from':'en','to':'zh','query':en_str,'transtype':'hash'}

这一行中的from和to的取值，应该可以用于其他语言之间的翻译。