The Request header is too large.

How do I solve this exception?

java.lang.IllegalArgumentException: Request header is too large
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The Exception MessageRequest header is too large.

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There are two main solutions:

Direction 1: Configure the maximum value the application server allows > the size of the request header data that you want to use

With Spring Boot, you just need to configure this parameter in the configuration file:

server.max-http-header-size=
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Direction 2: Avoid the situation that the request header is too large

The above configuration can be fixed, but if the header part is used indiscriminately, this parameter becomes uncontrollable.

It’s not recommended to put too much data in the header itself, so it makes more sense to put the data in the body.

So when you get this exception, do you choose method one or method two? Or is there another way? Comment on which one you think is better!

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