Input cannot pass value to background problem because it is disabled

Today, while doing a new feature found a problem, <input type= "type" disabled= "true"/> The input box can not pass the value to the background, I use the Request.getparameter Or with struts form can not get this value, then looked at the Internet, found the reason: Originally <input type= "text" name= "ISBN1" value= "Test" disabled= "true" > If so, you cannot pass values to the background.

WORKAROUND: 1. Do not use disabled keyword, switch to readonly, if you must have disabled effect, then you can CSS, such as style= "Color:rgb (0,0,0); Display:inline;border:0;background-color: #F6F9FD "

2. Use a hidden input tag to pass the value.