Spring: The request sent by the client was syntactically incorrect ()

Question

Hi I received next error during the redirect:

The request sent by the client was syntactically incorrect

URL which browser show

Answer 1

In my case, it was also a problem of conversion, Spring was expecting an Integer however I was entering a String. Try to check what you have passed as parameters to the controller

Answer 2

In my case the reason of this error was that browser (Chrome, in my particular case) was sending the date from the <input type="date" ... /> to the server in the wrong format so server didn't know how to parse it.

Answer 3

In cases like this it is very useful to have org.springframework.web loggin level set to DEBUG in log4j configuration

<logger name="org.springframework.web">
    <level value="DEBUG" />
    ...
</logger>

E.g. when parameter is missing or cannot be converted to the required type there will be an exception details in the log.

Answer 4

As said ike3, using the detailed log aided a lot to find the solution for me. In my case it was a mismatch between @PathVariable without name specified, and the variable itself.

Something like this:

@RequestMapping("/user/{uname}")
public String doSomething(@PathVariable String username) { ...

Note the difference between "uname" and "username" ! There was an exception internally that wasn't raised and I couldn't see it until I set the log to INFO level.