flask框架+上传文件接口实战【多测师_王sir】
HTML文件源码:
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> <style type="text/css"> body{ background: antiquewhite; } * { padding: 0; margin: 0; } form { width: 500px; border: 1px solid rgba(0,0,0,0.7); box-shadow: inset 0 0 15px rgba(0,0,0,0.3); border-radius: 10px; margin: 100px auto; background: #99bfe1; } form>div { margin: 15px 0; padding: 0 50px; } input[type='text']{ width: 300px; height: 30px; } input[type='radio'] { margin: 0 10px; } input[type='submit'],input[type='button']{ width: 100px; height: 30px; border: 1px solid rgba(0,0,0,0.5); color: white; background: rgba(0,0,0,0.7); border-radius: 5px; } form>div:last-child{ text-align: right; } </style> </head> <body> <!--在文件上传时form表单的数据传输方式必须为post,并且编码格式必须为 multipart/form-data,否则服务器端是无法获取传输的文件数据--> <form action="/duoceshi/upload" method="post" enctype="multipart/form-data"> <div> 头像:<input type="file" name="pic"> </div> <div> 昵称: <input type="text" name="dcs_name"> </div> <div> 性别: <input type="radio" name="sex" value="男" checked>男 <input type="radio" name="sex" value="女">女 </div> <div> 年龄: <input type="text" name="age"> </div> <div> <input type="submit" value="提交"> </div> </form> </body> </html>
#coding=utf-8 """ =========================== Author:多测师_王sir Time:2020-07-22 22:39 Wechat:xiaoshubass website:www.duoceshi.cn =========================== """ import os from flask import Flask, request, render_template, jsonify from werkzeug.utils import secure_filename from flask import send_from_directory import datetime app = Flask(__name__) # 文件上传的路径 UPLOAD_PATH = os.path.join(os.path.dirname(__file__), 'images') @app.route('/duoceshi/upload', methods=['GET', 'POST']) def settings(): if request.method == 'GET': # 创建视图函数,将该模板内容进行渲染返回 return render_template("upload_page.html") else: # 获取请求的参数 name = request.form.get('dcs_name') sex = request.form.get("sex") age = request.form.get("age") # 获取上传的图片 pic = request.files.get('pic') if all([name, sex, age, pic]): # 保存文件 filename = secure_filename(pic.filename) pic.save(os.path.join(UPLOAD_PATH, filename)) msg = "文件上传成功,文件保存的地址为:http://127.0.0.1:5000/images/{}".format(filename) data = { "code": 1, "data": { "name": name, "sex": sex, "age": age, "filename": filename, "datetime": datetime.datetime.now() }, "msg": msg } else: # 返回内容: data = { "code": 1, "data": None, "msg": "参数不能为空!" } return jsonify(data) # 访问上传的文件 # 浏览器访问:http://127.0.0.1:5000/images/xxx.png 查看文件 @app.route('/images/<filename>', methods=['GET', 'POST']) def get_image(filename): return send_from_directory(UPLOAD_PATH, filename) if __name__ == '__main__': app.run(debug=True)
#coding=utf-8 """ =========================== Author:多测师_王sir Time:2020-07-28 20:36 Wechat:xiaoshubass website:www.duoceshi.cn =========================== """ ''' 1.请求的url地址:http://127.0.0.1:5000/duoceshi/upload 2.post请求参数传递的几种方式: data:一般用来传递表单类型的参数、默认的请求头是Content-Type:application/x-www-form-urlencoded json:用来传递json类型的参数、默认的请求头是Content-Type:application/json files:用来上传文件的参数、默认的请求头是Content-Type:multipart/form-data 3.参数名:(文件名、文件流、文件类型image/png) ''' #组建接口的要素:url地址、接口的入参、请求头、接口的请求方法 import requests #做接口测试的库 #1.定义url地址 url = 'http://127.0.0.1:5000/duoceshi/upload' #2.定义接口的入参 data = { 'dcs_name':'多测师_王sir', 'sex':'男', 'age':18 } #3.接口的入参为文件 参数名:(文件名、文件流、文件类型image/png) file = { 'pic':('duoceshi_api.png',open(r'C:\Users\wangzhiqiang\Desktop\desktop\duoceshi_api.png','rb'),'image/png') } #4.发送接口的请求 response = requests.post(url=url,data=data,files=file) # print(response.text) # print(type(response.text)) print(response.json()) #通过json函数把接口的返回数据转换为字典 print(type(response.json()))
运行环境和流程: 1、前提安装好python 2、安装flask cmd 执行命令 pip install flask 3、运行http_service.py这个文件 4、就可以通过http://127.0.0.1:5000/duoceshi/upload访问这个接口 注意点:get请求返回的是上传文件的页面,post请求是上传文件 5、通过打开upload_page.html进行测试 6、通过postman或者编写测试代码进行测试 7、通过Python+Requests库编写测试代码进行测试