Develop personal blogs with flask (5) Four types of response in--flask _redirect

In the previous code, the view function returned a string, and the content of the HTML file returned in the actual development was actually a string. Below is a summary of several ways in which flask can be used as a response. 1, response string.

This has been explained earlier, but it should be noted that in fact, every time a view function responds with a status code. For example, the status code is 200, indicating that the request has been successfully processed. The status code is 400, which indicates that the request is invalid.

@app. Route ('/')

def index (): Return

    "Bad Request", 400

2, Response Response object

Using the Make_reponse () function to accept strings and error codes, return a response object that, in this way, can not only successfully process the request, but also set the response further, such as setting cookies, and so on:

From flask import Make_response

@app. Route ('/')

def index ():

    response=make_response (' Set cookies! ')

    Response.set_cookie (' Hyman ', ' 123 ') return

    response

3. Return redirect Type redirect

A redirect type is when you enter a URL and automatically jumps to the address of another URL

From flask Import redirect

@app. Route ('/")

def Index (): Return

    redirect (' http://www.baidu.com ')

After entering ' localhost:5000 ' in the browser, jump directly to the Baidu interface

4, return processing error code

Using Abort to return processing errors

From flask import Abort

@app. Route ('/')

def index ():

    abort (404)

GitHub Location:
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