url trouble passing json from js to java

Question

No change made at the code, simply I installed an application (struts2) developed using tomcat 8.0.23 on new environment that uses 8.0.50. The problem is in sending a short json from client (javascript) to server (java). In the former version I was using an url like this:

http://127.0.0.1:10080/dlq/updprat?jsonparams={%22datavz%22:%2209/04/2018%2014:18:12%22,%22descavz%22:%22foo%20foo%22,%22idprat%22:32,%22codprat%22:%22123456%22,...etc...,costs%22:[]}&pratAffidateSearchType=a

and all was running fine.
Now the system returns me the following error:

org.apache.coyote.http11.AbstractHttp11Processor.process Error parsing HTTP request header java.lang.IllegalArgumentException: Invalid character found in the request target. The valid characters are defined in RFC 7230 and RFC 3986

I localized the error in the braces: those aren't accepted anymore!
how can I remedy the problem? The app don't use ajax framework (like jQuery or Dojo) and I prefer not to insert tons of libraries now, only for once, for a trivial use.
Is there a plan javascript solution more elegant and universal and exportable instead ofsubstitute the braces at the origin with another character and replace this at destination before parsing?

score 1 · Answer 1 · answered Apr 09 '18 at 17:44

The { symbol should be replaced with %7B and } with %7D.

The easiest way would be to do something like:

window.encodeURIComponent(JSON.stringify({
    "datavz":"09/04/2018 14:18:12",
    "descavz":"foo foo",
    "idprat":32,
    "codprat":"123456",
    "costs":[]
}));

// %7B%22datavz%22%3A%2209%2F04%2F2018%2014%3A18%3A12%22%2C%22descavz%22%3A%22foo%20foo%22%2C%22idprat%22%3A32%2C%22codprat%22%3A%22123456%22%2C%22costs%22%3A%5B%5D%7D

You shouldn't need to replace this at destination before parsing, since that should be done automatically as it is URL encoded, and it coming from the URL.

thanx Dave, I'm going to try. Someone knows why this change of policy? There's a real improvement in Tomcat performance? and, in Tomcat 8.5 and 9, there,s the same policy? — m. mann, Apr 10 '18 at 08:32

url trouble passing json from js to java

1 Answers1