Python学习记录-----批量发送post请求

昨天学了一天的Python（我的生产语言是java，也可以写一些shell脚本，算有一点点基础），今天有一个应用场景，就正好练手了。

这个功能之前再java里写过，比较粗糙，原来是在我本机跑的，今天老大要求要随时保持请求，就用Python改写了下，省的又把一个有跟多杂项的jar包传到服务器，省空间又不乱，而且好读。

先附上java代码：

package xxxxxx.base;

import java.util.Random;

import org.apache.commons.lang3.StringUtils;

import haojianxiang.util.HttpRequest;

public class CreateFeedbackData {

	public static void main(String[] args) {
		while (true) {
			try {
				Random r = new Random();
				int sleep = r.nextInt(1200000) + 600000;
				Thread.sleep(sleep);
				post();
			} catch (Exception e) {
				e.printStackTrace();
			}
		}
	}
	
	public static void post(){
		String url = "http://111.111.111.111:8080/xxxx/post";
		
		int[] types = {1, 2, 3, 4};
		int index = (int) (Math.random() * types.length);
		int type = types[index];
		
//		String[] contents = {"-中文测试-，","-English Test-,","~!@#$%^&*()_;:'-\"<>?/|\\-,","          "};
		String[] contents = {"-中文测试-，","-English Test-,","~!@#$%,","          "};
		
		StringBuffer content = new StringBuffer();
		content.append("haojianxiang test:");
		for (int i = 0; i < 10; i++) {
			int idx = (int) (Math.random() * contents.length);
			content.append(contents[idx]);
		}
		
		String[] imgs = {"/Upload/appUpload/58c7b315cb39f.jpg",
				"/Upload/appUploa/58cb467a69873.jpg",
				"/Upload/appUpload/58afff0e99432.png",
				"/Upload/appUpload/58b545539eb80.jpg",
				"/Upload/appUpload/58b55d7c9e281.JPG",
		};
		StringBuffer img = new StringBuffer();
		
		for (int i = 0; i < (int) (Math.random() * 4); i++) {
			int lucky = (int) (Math.random() * 2);
			if (lucky == 1) {
				int idx = (int) (Math.random() * imgs.length);
				img.append(imgs[idx]);
				img.append(",");
			}
		}
		String imgStr = "";
		if (StringUtils.isNotBlank(img)) {
			imgStr = img.substring(0, img.length()-1);
		}
		String param = "{\"req\":{\"userId\":xxxxxx}," +
				"\"data\":{"\"fbType\":" + type + ",\"fbContent\":\""+content.toString()+
				"\",\"fbPic\":\""+imgStr+"\"}}";
		String rst = HttpRequest.sendPost(url, param);
		System.out.println("TIME--"+ System.currentTimeMillis() + " result:" + rst);
	}

}

(代码里的参数地址等我已做了隐藏，json格式可能不准确了，无所谓)

接下来上Python代码：

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

import random
import urllib
import urllib.request
import time

def postFeedBack():
    url = "http://111.111.111.111:8080/xxxx/post"

    type = int(random.uniform(1,5))
    contents = ["-中文测试-，","-English Test-,","~!@#$%,","     "]
    content = "haojianxiang test:"
    for i in range(0,10):
        content += random.choice(contents)

    img = ""
    imgs = ["/Upload/58c7b315cb39f.jpg",
            "/Upload/58cb467a69873.jpg",
            "/Upload/58afff0e99432.png",
            "/Upload/58b545539eb80.jpg",
            "/Upload/58b55d7c9e281.JPG"]
    for i in range(0,3):
        lucky = int(random.uniform(0,2))
        if lucky == 1:
            img += random.choice(imgs)
            img += ","
    img = img[:-1]
    data = "{\"req\":{\"userId\": xxx},"
    data += "\"data\":{
    data += "\"fbType\":"
    data += str(type)
    data += ",\"fbContent\":\""
    data += content
    data += "\",\"fbPic\":\""
    data += img
    data += "\"}}"

    pdata = bytes(data,encoding="utf-8")
    f = urllib.request.urlopen(url,pdata)

    result = f.read()
    result = result.decode('UTF-8')
    print(result)

if __name__ == "__main__":
    while True:
        st = int(random.uniform(600,1800))
        print("sleep:",st)
        time.sleep(st)
        postFeedBack()

Python的写法确实很简洁高效（java代码里post的逻辑，我还是调用了自己的一个工具类，实际代码要更多），今后打算把Python作为优先脚本语言，处理简单问题很快。