THE Post request method is too long, resulting in the parameter being null and the post being too long.

THE Post request method is too long, resulting in the parameter being null and the post being too long.

The Post submission method has no restrictions on the parameter length and HTTP protocol.

However, when I was working on a web project today, I encountered a problem. When the content of the form to be submitted reached a certain hour, I found that the parameter received by the background code was blank.

After a query, I found that the application server has a limit on the length of the Request Parameters. I did not test the specific limit.

I use Tomcat. The solution is as follows:

<Connector port = "8080" protocol = "HTTP/1.1" maxThreads = "150" connectionTimeout = "20000" redirectPort = "8443"/>

Add a property: maxPostSize = "0", which means tomcat does not limit the length of request parameters.