HTTP Status 400 – Bad Request

Type Exception Report

Message Invalid character found in the request target [/article/3908823/%E9%99%B3%E8%8C%82%E6%B3%A2%EF%BC%9A%E5%8C%97%E9%83%BD%E9%83%A8%E5%88%86%E5%95%86%E6%A5%AD%E5%9C%B0%20%E6%88%96%E6%94%B9%E4%BD%8F%E5%AE%85%E7%AD%89?mtc\u003d70028 ]. The valid characters are defined in RFC 7230 and RFC 3986

Description The server cannot or will not process the request due to something that is perceived to be a client error (e.g., malformed request syntax, invalid request message framing, or deceptive request routing).

Exception

java.lang.IllegalArgumentException: Invalid character found in the request target [/article/3908823/%E9%99%B3%E8%8C%82%E6%B3%A2%EF%BC%9A%E5%8C%97%E9%83%BD%E9%83%A8%E5%88%86%E5%95%86%E6%A5%AD%E5%9C%B0%20%E6%88%96%E6%94%B9%E4%BD%8F%E5%AE%85%E7%AD%89?mtc\u003d70028 ]. The valid characters are defined in RFC 7230 and RFC 3986
	org.apache.coyote.http11.Http11InputBuffer.parseRequestLine(Http11InputBuffer.java:482)
	org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:263)
	org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63)
	org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:928)
	org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1794)
	org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)
	org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
	org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
	org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	java.base/java.lang.Thread.run(Thread.java:833)

Note The full stack trace of the root cause is available in the server logs.

Apache Tomcat/9.0.83