Python笔记-Flask返回字符串、Json、模板数据- Python

这里主要是回数据给前端，其中Json，和模板最为常见

程序运行截图如下：

字符串：

Json：

模板：

程序结构如下：

源码如下：

application.py


from flask import Flask
from controller import index_page
 
app = Flask(__name__)
 
app.register_blueprint(index_page, url_prefix = "/it1995")
 
if __name__ == "__main__":
    app.run(host = "0.0.0.0", debug=True)

controller.py


from flask import Flask, Blueprint, request, make_response, jsonify, render_template
 
index_page = Blueprint("index_page", __name__)
 
@index_page.route("/text")
def text():
    return "text/html"
 
@index_page.route("/text_same")
def text_same():
    response = make_response("text/html", 200)
    return response
 
@index_page.route("/json")
def json():
    import json
    data = {"a" : "b"}
    response = make_response(json.dumps(data))
    response.headers["Content-Type"] = "application/json"
    return response
 
@index_page.route("/json_same")
def json_same():
    data = {"a" : "b"}
    response = make_response(jsonify(data))
    return response
 
@index_page.route("/template")
def template():
    name = "Hello World"
    context = {"name" : name}
    context['user'] = {"nickname" : "IT1995", "qq" : "570176391", "url" : "www.it1995.cn"}
    context['num_list'] = [1, 2, 3, 4, 5]
    return render_template("index.html", **context)
 
@index_page.route("/index3")
def index3page():
    return render_template("index3.html")
 
@index_page.route("/index4")
def index4page():
    return render_template("index4.html")

layout.html


<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>统一模版</title>
</head>
<body>
{%block content%}
{%endblock%}
</body>
</html>

index.html


<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
Hello
<p>
    {% if user %}
    {{user.nickname}} 联系QQ: {{user.qq}} 主页: {{user.url}}
    {% endif %}
</p>
<p>
    {% for tmp_num in num_list %}
    {{tmp_num}}
    {% endfor %}
</p>
</body>
</html>

index3.html


{% extends "common/layout.html" %}
{% block content %}
How are you
{% endblock %}

index4.html


{% extends "common/layout.html" %}
{% block content %}
How old are you
{% endblock %}

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