form表单的get请求和post请求学习心得

本文介绍: form 表单在提交时，method一般有两种方式，即get 请求和post 请求，对应 view s中request.method的get和post，两种请求最直观的区别就是，g e t 请求会在网页导航栏路由中显示提交的结果，而p os t 请求则不会，而是隐蔽地传给服务端，一定程度上更加安全。

form 表单在提交时，method一般有两种方式，即get 请求和p os t 请求，对应view s中request.method的get和p ost，两种请求最直观的区别就是，get请求会在网页导航栏路由中显示提交的结果，而post请求则不会，而是隐蔽地传给服务端，一定程度上更加安全。在讨论两种请求方式之前，先看下django中request 参数有哪些常用的属性：

1. 先写一个简单的form 表单，method为get请求，action暂时不给

<!DOCTYPE html&gt;
<html lang="en"&gt;
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form action="" method="get">{% csrf_token %}
    用户名：<input type="text" name="usrname" placeholder="请输入用户名"><br>
    密&amp;emsp;码：<input type="password" name="password" placeholder="请输入密码"><br>
    <button type="submit">提交</button>
    <button type="reset">重置</button>
</form>
</body>
</html>

2. blog_app下的url 路由，关联 request_test 视图函数

from django.urls import path
from . import views

app_name = 'blog'

urlpatterns = [
    path('request_test/',views.request_test,name='request_test'),

]

3.request_test 视图函数，打印 request的下列属性值

def request_test(request):
    print('request:----->',request)
    print('request.path:----->',request.path)
    print('request.method:----->',request.method)
    print('request.get_host():----->',request.get_host())
    print('request.get_port():----->',request.get_port())
    return render(request,'blog/request_test.html')

4.访问路由，填写数据，提交表单

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form action="{% url 'blog:get_test' %}" method="get">{% csrf_token %}
    用户名：<input type="text" name="usrname" placeholder="请输入用户名"><br>
    密&amp;emsp;码：<input type="password" name="password" placeholder="请输入密码"><br>
    <button type="submit">提交</button>
    <button type="reset">重置</button>
</form>
</body>
</html>

from django.urls import path
from . import views

app_name = 'blog'

urlpatterns = [
    path('request_test/',views.request_test,name='request_test'),
    path('get_test/',views.get_test,name='get_test'),
]

def get_test(request):
    username = request.GET.get('usrname')
    password = request.GET.get('password')
    print(request.method)
    print('========')
    print(username,password)
    return HttpResponse('GET请求成功')

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form action="{% url 'blog:post_test' %}" method="post">{% csrf_token %}
    用户名：<input type="text" name="usrname" placeholder="请输入用户名"><br>
    密&amp;emsp;码：<input type="password" name="password" placeholder="请输入密码"><br>
    爱&amp;emsp;好：
    <input type="checkbox" name="hobby" value="篮球">篮球
    <input type="checkbox" name="hobby" value="rap">rap
    <input type="checkbox" name="hobby" value="跳舞">跳舞
    <input type="checkbox" name="hobby" value="画画">画画<br>
    <button type="submit">提交</button>
    <button type="reset">重置</button>
</form>
</body>
</html>

from django.urls import path
from . import views

app_name = 'blog'

urlpatterns = [
    path('request_test/',views.request_test,name='request_test'),
    path('post_test/',views.get_test,name='post_test'),
]

def post_test(request):
    username = request.POST.get('usrname')
    password = request.POST.get('password')
    hobby = request.POST.getlist('hobby')
    print(request.method)
    print('========')
    print('username:',username,'password:',password,'hobby:',hobby)
    return HttpResponse('POST请求成功')