Download:Netty+Spring Boot imitation oF wechat full stack development of high-performance background and client

The course will imitate wechat to develop an App, which involves Netty websocket development, SpringBoot development, MUI and H5Plus (H5+) and Nginx+FastDFS distributed file system construction and use, etc. After that you can develop a high level App and release it.

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Suits the crowd

Junior and intermediate Java development, with basic college graduates

Technical reserve requirements

Basic Knowledge of Java, HTML, CSS, JS front-end, Linux, Spring,

Springmvc, MyBatis, mysql/ Mariadb or other relational databases

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import time from selenium import webdriver from selenium.webdriver.common.action_chains import ActionChains from selenium.webdriver.support.wait import WebDriverWait from selenium.webdriver.support import expected_conditions as EC The from selenium.webdriver.com mon. By the import by # start Chromedriver, Webdriver.chrome () driver.maximize_window() driver.get("http://www.baidu.com") ActionChains AC = ActionChains(driver) Ele = driver.find_element_by_xpath('//span[@id="s-usersetting-top"]]') # Perform the corresponding operation ac.move_to_element(ele) # hover operation # 4 Wait = WebDriverWait(driver, 10) loc = (by.xpath, 10) loc = (by.xpath, 10) '//a[@class="setpref"]') wait.until(EC.visibility_of_element_located(loc)) driver.find_element(*loc).click() Time. Sleep (2) driver. Quit ()def move_to(): print()def click(): Print (' click ') actions = [] actions. Append (move_to) actions. Append (click) for action in actions: # perform # action = move_to action()import time from selenium import webdriver from selenium.webdriver.common.keys Import Keys # start Chromedriver Driver = webdriver.chrome () driver.maximize_window() driver.get("http://www.baidu.com") Driver.find_element_by_id ('kw').send_keys("selenium") # Driver.find_element_by_id ('kw').send_keys(keys.control,'a') # select all and type new python driver.find_element_by_id('kw').send_keys('python', Sleep (2) # driver.find_element_by_id('kw').send_keys('python') # Driver.find_element_by_id ('kw').send_keys(keys.enter) # Return time.sleep(2) driver.quit()< HTML > <head> <meta Charset ="UTF-8"> <title> Dropdown demo </title> </head> <body> <select ID ="province"> <option value="sj"> Shenzhen </option> <option Value ="gd"> Gd </option> <option value="sh"> Shanghai </option> <option value=" BJ "> Beijing </option> </select> <option Value ="sj"> Shenzhen </option> <option value="gz"> Guangzhou </option> <option value="sh"> Shanghai </option> <option Value ="bj"> bJ </option> </select> </body> import time from selenium import webdriver from selenium.webdriver.support.wait import WebDriverWait from The selenium. Webdriver. Support. The UI # import the Select start the Chromedriver, Driver = webdriver.chrome () driver.maximize_window() driver.get(r"D:\learn\test.html") wait = WebDriverWait(driver, Ele = driver.find_element_by_id(' type ') S.selt_by_value ('gd') # select value time.sleep(2) # select value time.sleep(2) Sleep (2) driver.quit()import time import datetime from Selenium import webdriver from selenium.webdriver.support import expected_conditions as EC from selenium.webdriver.support.wait import WebDriverWait from selenium.webdriver.common.by import By from selenium.webdriver.common.keys import Keys # Start the Chromedriver, Chrome() # driver.maximize_window() driver.get("https://www.12306.cn/") wait = WebDriverWait(driver, 30) loc = (By.XPATH, '//input[@id="train_date"]') wait.until(EC.visibility_of_element_located(loc)) js = 'document.getElementById("train_date").readOnly=false; 'driver.execute_script(js) time.sleep(2) # clear calendar, Driver.find_element (*loc).clear() today = datetime.date.today() tomorrow = today + datetime.timedelta(days=1) driver.find_element_by_id('train_date').send_keys(str(tomorrow)) time.sleep(2) driver.quit()Copy the code