课程名称： 考核日期：

题目：使用socket编程，构造一个http请求报文，发送到服务器获得一个响应报文，将其打印出来。

由于Yahoo没有加载上去，换了高德地图的api

Java代码：获取哈尔滨的天气信息

import java.io.*;
import java.net.Socket;
public class test {
    public static void main(String[] args) throws IOException {
        Socket socket = new Socket("restapi.amap.com", 80);
        final BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
        BufferedWriter bufferedWriter = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));
        new Thread() {
            @Override
            public void run() {
                while (true) {
                    String line = null;
                    try {
                        while ((line = bufferedReader.readLine()) != null) {
                            System.out.println("接收数据 : " + line);
                        }
                    }
                    catch (IOException e) {
                        e.printStackTrace();
                    }
                }
            }
        }.start();
        bufferedWriter.write("GET /v3/weather/weatherInfo?city=哈尔滨&key=13cb58f5884f9749287abbead9c658f2 HTTP/1.1\r\n");
        bufferedWriter.write("Host: restapi.amap.com\r\n\r\n");
        bufferedWriter.flush();
    }
}

运行结果：

Python代码如下：（bs4导入过程略）（爬取中国天气网哈尔滨的天气）

import urllib.request
from bs4 import BeautifulSoup
url = "http://www.weather.com.cn/weather/101050101.shtml"
header = ("User-Agent",
          "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 "
          "Safari/537.36")
opener = urllib.request.build_opener()
opener.addheaders = [header]
request = urllib.request.Request(url)
response = urllib.request.urlopen(request)
html = response.read()
html = html.decode('utf-8')
list1 = []
bs = BeautifulSoup(html, "html.parser")
body = bs.body
data = body.find('div', {'id': '7d'})
ul = data.find('ul')
li = ul.find_all('li')
# print (li)
i = 0
for day in li:
    if i < 7:
        list2 = []
        date = day.find('h1').string
        #         print (date)
        list2.append(date)
        #     print (list2)
        infind = day.find_all('p')
        #print(infind[2].find('span').title)
        #     print (infind[0])
        list2.append(infind[0].string)
        if infind[1].find('span') is None:
            Maxtemperature ='最高温度:暂无'

        else:
            Maxtemperature = infind[1].find('span').string
            Maxtemperature = Maxtemperature.replace('℃', '')
            Maxtemperature = "最高温度:" + Maxtemperature + "℃"
        Mintemperature = infind[1].find('i').string
        Mintemperature = "最低温度:" + Mintemperature

        list2.append(Maxtemperature)
        list2.append(Mintemperature)
        Windpower = infind[2].find('i').string
        Windpower = "风力" + Windpower
        list2.append(Windpower)
        list1.append(list2)
        i = i + 1
print("哈尔滨：")
#print(list1)
file = open("text.txt",'w+')
for i in range(len(list1)):
    s = str(list1[i]).replace('[', '').replace(']', '')
    s = s.replace("'", '').replace(',', '') + '\n'
    print(s,end='')
    file.write(s)
file.close()
print("保存文件成功")

运行结果如下：

用w+方式保存的TXT文件如下所示：