python3 实现 get 和 post 请求

用 python3 写脚本发送 get 或 post 请求已经不下一次了，但是每次写都不能随心顺手，总得要百度一下，然后照搬过来，测试才能使用，这里记下使用 demo，方便以后使用。

• get 请求

  #获取git仓库信息
  def get_git_info():
  params = parse.urlencode({"repo":repo,"git_url":git_url})
  response = request.urlopen(conf.git_info_url + '?%s' % params)
  result = json.loads(response.read().decode('utf-8'))
  global git_info
  if result['status']:
      print('获取仓库信息成功')
      git_info = result['data']
      global code_run_path
      if code_run_path == '':
          code_run_path = git_info['code_run_path'].rstrip('/')
  else:
      msg = result['msg']
      print(msg)
      raise Exception('获取git仓库信息失败')
  return git_info

  当然，这里前提是要导入模块 from urllib import parse,request，parse.urlencode({"repo":repo,"git_url":git_url}) 对参数进行编码，request.urlopen(conf.git_info_url + '?%s' % params) 发送拼接请求，response.read().decode('utf-8') 读取返回内容并用utf-8编码方式解析出来

• post 请求

  def log_release(success_servers,fail_servers,error_msg,status):
  deploy_file = source_dir + '/post-deploy-script.sh'
  deploy_script=''
  if os.path.isfile(deploy_file):
      with open(deploy_file,'r') as f:
          deploy_script = f.read()
  exclude_file = source_dir + '/.deploy-exclude.list'
  exclude_content = ''
  if os.path.isfile(exclude_file):
      with open(exclude_file, 'r') as f:
          exclude_content = f.read()
  
  deploy_version_log = get_version()
  data = {"env":env,"mode":mode,"git_url":git_url,"source_dir":source_dir,"is_sync_delete":str(is_sync_delete),"repo_dir":repo,
          "code_run_path":code_run_path,"success_servers":success_servers,"fail_servers":fail_servers,"error_msg":error_msg,
          "status":str(status),"deploy_script":deploy_script,"deploy_version_log":deploy_version_log,"exclude_content":exclude_content}
  
  text_data = json.dumps(data)
  text_data = bytes(text_data,'utf-8')
  response = request.Request(conf.log_release_url, text_data)
  res = request.urlopen(response)

  定义 json 参数

  data = {"env":env,"mode":mode,"git_url":git_url,"source_dir":source_dir,"is_sync_delete":str(is_sync_delete),"repo_dir":repo,
        "code_run_path":code_run_path,"success_servers":success_servers,"fail_servers":fail_servers,"error_msg":error_msg,
        "status":str(status),"deploy_script":deploy_script,"deploy_version_log":deploy_version_log,"exclude_content":exclude_content}

  将 json 转为 字符串 text_data = json.dumps(data)
  将参数转化字节流 text_data = bytes(text_data,'utf-8')
  发送请求 response = request.Request(conf.log_release_url, text_data) res = request.urlopen(response)
  这里需要注意的是，post 过去的数据如果是 php 接收的话需要 使用以下方式接收并处理

  $data = file_get_contents('php://input');
  $data = json_decode($data, true);

  笔者在这里踩过几次坑了，直接用框架的post取出来的是整个字符串，用 json 又解析不出来参数数组

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