一个简易的SpringCloud Http Post 请求发送工具

为了方便开发同学，用Python写了一个POST请求发送可执行脚本，方便那些不能使用postman等使用的局域网。当然可以使用CURL命令、用PHP写一个也未尝不可，但并不具备跨平台性。

当然也可以使用go进行开发，可本人还不太会。废话不多说，show me code。

原理：

获取到 Linux 系统配置的 apollo 配置中心地址：http://apolloUrl/

通过访问apollo配置中心 http://apolloUrl/configs/公共配置ID/default/公共配置namespace，获取到eureka的服务器地址。

然后访问 http://eurekaUrl/eureka/apps/ 获取到注册应用的真实ip地址。

解析XML配置，最后替换并访问正确的目标地址。

import json
import os
import re
import sys

import requests
from xml.dom.minidom import parseString
from sys import argv

# 公共配置appId
PUBLIC_APOLLO_CONFIG_APP_ID = "xxxx.public"
# 公共配置namepsace
PUBLIC_APOLLO_CONFIG_NAMESPACE = "PUBLIC"
# 公共配置key
EUREKA_URL_KEY = "eureka.service.url"

JSON_HEADERS = {
    'content-type': "application/json;charset=UTF-8",
    'user-agent': "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.143 Safari/537.36"
}


def doPost(url, postData):
    # 提交post请求
    response = requests.post(url, headers=JSON_HEADERS, data=postData)
    return response


def doGet(url):
    # 提交post请求
    response = requests.get(url, headers=JSON_HEADERS)
    return response.text


def isIpAddressPort(ipStr):
    p = re.compile('^((25[0-5]|2[0-4]\d|[01]?\d\d?)\.){3}(25[0-5]|2[0-4]\d|[01]?\d\d?)(\:\d+)$')
    if p.match(ipStr):
        return True
    else:
        return False


def parseEurekaUrl(confgJsonStr):
    data = json.loads(confgJsonStr)
    eurekaUrlStr = data['configurations'][EUREKA_URL_KEY]
    eurekaUrls = eurekaUrlStr.split(',')
    return eurekaUrls[0]


def getRealIpPort(configXml, appNamStr):
    # 读取文件
    dom = parseString(configXml)
    # 获取文档元素对象
    data = dom.documentElement
    # 获取 student
    applications = data.getElementsByTagName('application')
    for appInfo in applications:
        # 获取标签中内容
        appName = appInfo.getElementsByTagName('name')[0].childNodes[0].nodeValue
        if appName != appNamStr:
            continue
        # 获取标签中内容
        return appInfo.getElementsByTagName('instanceId')[0].childNodes[0].nodeValue


def getRealHttpUrl(apolloUrl, httpUrl):
    httpUrlTmp = httpUrl.replace("http://", '')
    httpUrlTmp = httpUrlTmp.replace("https://", '')
    urls = httpUrlTmp.split("/")
    appName = urls[0].upper()

    if isIpAddressPort(appName):
        return httpUrl

    url = apolloUrl + "/configs/" + PUBLIC_APOLLO_CONFIG_APP_ID + "/default/" + PUBLIC_APOLLO_CONFIG_NAMESPACE
    eurekaUrl = parseEurekaUrl(doGet(url))
    endStr = eurekaUrl[-1]
    if "/" == endStr:
        eurekaUrl = eurekaUrl[0:-1]
    eurekaUrl += "/apps"

    realIpPort = getRealIpPort(doGet(eurekaUrl), appName)
    return httpUrl.replace(appName, realIpPort)


def callService(apolloUrl, httpUrl, postData):
    try:
        httpUrlOrigin = httpUrl
        httpUrl = getRealHttpUrl(apolloUrl=apolloUrl, httpUrl=httpUrl)

        print("\r\nRequestOriginUrl: {}".format(httpUrlOrigin))
        print("RequestUrl: {}".format(httpUrl))
        print("RequestMethod: POST")
        print("RequestData:")
        print("{}".format(json.dumps(json.loads(postData), indent=4)))
        response = json.loads(doPost(httpUrl, postData).text)
        print("ResponseDump:")
        print("{}\r\n".format(json.dumps(response, indent=4)))
        print("Response:")
        print("{}\r\n".format(json.dumps(response)))
    except Exception as e:
        print("error:{}".format(repr(e)))


if __name__ == '__main__':
    apolloUrl = os.getenv('APOLLO_META')
    if 0 == len(apolloUrl):
        print("Please Set the APOLLO_META variable in the /etc/profile file !")
        sys.exit(1)

    if len(argv) < 3:
        print("Please input URL and PostData !")
        print(
            "Simple: ./springTest http://ABC/cde/fgh '{\"a\":\"b\"}' Or ./springTest http://ip[:port]/cde/fgh '{\"a\":\"b\"}'")
        sys.exit(1)

    callService(apolloUrl, argv[1], argv[2])

编译成可执行文件：

pip3 install pyinstaller
pyinstaller -F springTest.py

使用示例：

./springTest http://应用id/xxxCtl/xxxAction '{"a":"b"}'

./springTest http://ip[:port]/xxxCtl/xxxAction '{"a":"b"}'

PS:

编译时报依赖库不存在解决办法：http://www.pythonheidong.com/blog/article/158136/

原文地址：https://www.cnblogs.com/phpdragon/p/12551992.html