Python 如何从线程到flask应用程序获取异步更新？
我有一个烧瓶应用程序开始几个并行线程。每个线程开始一个耗时的测量。到目前为止，我可以启动所有线程，并等待它们完成后再更新页面 app.py：Python 如何从线程到flask应用程序获取异步更新？,python,flask,Python,Flask,我有一个烧瓶应用程序开始几个并行线程。每个线程开始一个耗时的测量。到目前为止，我可以启动所有线程，并等待它们完成后再更新页面 app.py： import time import threading import random from flask import render_template class AsynchronWorker(threading.Thread): def __init__(self, tc_name): threading.Thread._
import time
import threading
import random
from flask import render_template
class AsynchronWorker(threading.Thread):
def __init__(self, tc_name):
threading.Thread.__init__(self)
self.tc_name = tc_name
self.duration = 0
def get_tc_name(self):
return self.tc_name
def get_duration(self):
return self.duration
def run(self):
start_time = time.time_ns()
time.sleep(random.randint(1, 5))
self.duration = time.time_ns() - start_time
app = Flask(__name__)
test_cases = {"Upload": 0, "Download": 0}
@app.route("/")
def index():
return render_template(template_name_or_list="index.html",
test_cases=test_cases)
@app.route("/start")
def start():
threads = []
results = {}
for tc in test_cases:
thread = AsynchronWorker(tc_name=tc)
threads += [thread]
thread.start()
for x in threads:
x.join()
results[x.get_tc_name()] = x.get_duration()
return render_template(template_name_or_list="index.html",
test_cases=results)
if __name__ == "__main__":
app.run(host="0.0.0.0", port=5005, debug=True)
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<form>
{% for name in test_cases.keys() %}
<h2> {{ name }} run for {{ test_cases[name] }} ns.</h2>
{% endfor %}
<a href="/start"><input type="button" name="start" value="Start"></a>
</form>
</body>
</html>
标题
{%用于测试用例中的名称。keys（）%}
{{name}}为{{test_cases[name]}n运行。
{%endfor%}