Plotly Dash 应用程序中的重定向

Plotly Dash 是一个用于构建交互式数据可视化应用程序的Python框架。它提供了丰富的组件和工具，使开发者能够快速构建出功能强大、美观而且易于使用的应用程序。在Dash应用程序中，重定向是一种常见的技术，它允许开发者在用户进行某些操作后，将用户重定向到另一个页面或视图。

python
import dash
import dash_core_components as dcc
import dash_html_components as html
from dash.dependencies import Input, Output, State
import dash.redirect as redirect
app = dash.Dash(__name__)
app.layout = html.Div([
    dcc.Input(id='input-redirect', type='text', placeholder='Enter URL'),
    html.Button('Redirect', id='button-redirect', n_clicks=0),
    html.Div(id='output-redirect')
])
@app.callback(
    Output('output-redirect', 'children'),
    [Input('button-redirect', 'n_clicks')],
    [State('input-redirect', 'value')]
)
def redirect_to_url(n_clicks, url):
    if n_clicks > 0 and url is not None:
        return redirect(url)
if __name__ == '__main__':
    app.run_server(debug=True)

python
import dash
import dash_core_components as dcc
import dash_html_components as html
from dash.dependencies import Input, Output, State
import dash.redirect as redirect
app = dash.Dash(__name__)
app.layout = html.Div([
    dcc.Input(id='input-username', type='text', placeholder='Username'),
    dcc.Input(id='input-password', type='password', placeholder='Password'),
    html.Button('Login', id='button-login', n_clicks=0),
    html.Div(id='output-login')
])
@app.callback(
    Output('output-login', 'children'),
    [Input('button-login', 'n_clicks')],
    [State('input-username', 'value'), State('input-password', 'value')]
)
def redirect_to_dashboard(n_clicks, username, password):
    if n_clicks > 0 and username == 'admin' and password == 'password':
        return redirect('/dashboard')
    else:
        return 'Invalid username or password'
if __name__ == '__main__':
    app.run_server(debug=True)