Question

我有一个带3个按钮的页面。当我按下一个时，我希望页面告诉我按下了哪个按钮。最后，我想从此页面切换流程并运行脚本，并立即获得按钮旁边的反馈。像控制面板一样。

我的问题是采取按钮操作，对其执行操作并使用按钮将结果返回到页面。

我已经阅读了web.py表单教程并按照它们进行操作。我还在templetor中查找了示例，所有表单似乎都处理登录例程或将响应写入数据库。有时响应显示在新页面上，但从不在按钮旁边的同一页面中。

在构建它时，必须有一些关于表单例程的内容。

脚本：

#===============================================================================
# Imports
#===============================================================================
import web
import os
from web import form

#===============================================================================
# Start webPy environment
#===============================================================================
urls = ('/', 'index',
        '/images/(.*)', 'images'
        )
render = web.template.render('templates/')
button_resp = "temp"

#===============================================================================
# Menu buttons
#===============================================================================
my_form = form.Form(
 form.Button("btn", id="Search planet", value="ipfact", html="Find Target", class_="ipfact"),
 form.Button("btn", id="Lock on Target", value="lockta", html="Select planet to target", class_="lockta"),
 form.Button("btn", id="Destroy all humans", value="deshum", html="Destroy all humans", class_="deshum")
)

#===============================================================================
# Classes
#===============================================================================
class index:
    def GET(self):
        form = my_form()
        return render.index(form, button_resp)

    def POST(self):
        form = my_form()
        userData = web.input()
        if not form.validates(): 
            return render.formtest(form)
        else:

        # Determine which colour LedBorg should display
            if userData.btn == "ipfact":
                button_resp = "Find Target"
                print "ipfact"

            elif userData.btn == "lockta":
                button_resp =  "Select planet to target"
                print "lockta"

            elif userData.btn == "deshum":
                button_resp =  "Destroy all humans"
                print "deshum"

            else:
                button_resp =  "Do nothing else - assume something fishy is going on..."
                print "nothing"

        # reload the web form ready for the next user input
        raise web.seeother('/')

class images:
    def GET(self,name):
        ext = name.split(".")[-1] # Gather extension

        cType = {
            "png":"images/png",
            "jpg":"images/jpeg",
            "gif":"images/gif",
            "ico":"images/x-icon"            }

        if name in os.listdir('images'):  # Security
            web.header("Content-Type", cType[ext]) # Set the Header
            return open('images/%s'%name,"rb").read() # Notice 'rb' for reading images
        else:
            raise web.notfound()

#===============================================================================
# Run it!
#===============================================================================
if __name__ == "__main__": 
    app = web.application(urls, globals())
    app.run()

index.html模板文件：

$def with (form, button_resp)
<!doctype html>
<html>
<head
    <link rel="shortcut icon" href="/images/favicon.ico" type="image/x-icon">
    <link rel="icon" href="/images/favicon.ico" type="image/x-icon">
</head>

<center>
    <img src="/images/deathstar.jpg" width="256" height="256" >
    <br>
    <b>Welcome aboard!</b>
    <br>
    $button_resp
</center>

<form name="main" method="post"> 
    $:form.render()
</form>

</html>

Answer 1

您必须讨论异步请求，其中网页可以处理请求而无需刷新页面。不像登录页面那样的web.py示例。

易。使用jQuery完成工作。 documentation足以让您入门。但在这里，我将举一个例子。

将此代码段添加到.js文件中：

$.ajax({
   url: '/',
   type: 'POST',
   data: {
       params: text
}).done(function(){
    /* Do something */
});

使用web.py表单按钮例程

1 个答案: