[英]pixel tracking : retrieving the parameters sent through url via <img src=""/> on server side
I am trying to create a pixel tracker using javascript, and have included the necessary parameters in the url and have included this:我正在尝试使用 javascript 创建一个像素跟踪器,并且在 url 中包含了必要的参数并包含了这个:
img src="/Documents/myimg.gif?utm_source="myfile"
now, I am unable to understand how to access the parameters on the servlet using java.现在,我无法理解如何使用 java 访问 servlet 上的参数。 Could someone help me with this??
有人可以帮我解决这个问题吗??
I don't have a solid knowledge of java servlet but i believe the same idea will work.我对 java servlet 没有扎实的知识,但我相信同样的想法会奏效。
In PHP i would just create a directory with a script that return the content type image/* so for instance在 PHP 中,我只需要创建一个包含返回内容类型 image/* 的脚本的目录,例如
/Document/index.php
with the following content /Document/index.php
包含以下内容
<?php
$getVar=$_GET;
// do the necessary with the get vars
header('Content-Type:image/jpg');// you can adjust the content type accordingly
/* this is the image url. you can use
.htaccess and get this as the last parameter of the url just like in your question */
readfile('myimg.gif');
To make the url just like what you have currently - .htaccess will help to rewrite the url to look pretty much like anything, even take multiple images/actions with switch
statement or if
on the back-end为了使URL就像你有什么现在-的.htaccess将有助于重写URL看起来非常像任何东西,甚至随身携带多张图片/动作
switch
语句或if
在后端
<img src="/Documents/myimg.gif?utm_source="myfile"/>
Again this is for PHP but you should get an idea.这同样适用于 PHP,但您应该有一个想法。
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