The valid characters are defined in RFC 7230 and RFC 3986

控制台报错

java.lang.IllegalArgumentException: Invalid character found in the request target. The valid characters are defined in RFC 7230 and RFC 3986
	at org.apache.coyote.http11.Http11InputBuffer.parseRequestLine(Http11InputBuffer.java:479)
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:687)
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1468)
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Unknown Source)

在我项目出现这个的场景是url跳转之后报错的。报错信息翻译是有效字符是在RFC 7230和RFC 3986中定义的

因此猜测是url中含有特殊字符，需要转义。之后在对url进行转义再跳转后，果然成功了。

对于特殊字符的转义，我参考的这篇博文：https://blog.youkuaiyun.com/u013412790/article/details/51441972

感谢！