tomcat url 包含 特殊符号 The valid characters are defined in RFC 7230 and RFC 3986

HTTP Status 400 – Bad Request

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Type Exception Report

Message Invalid character found in the request target. 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. The valid characters are defined in RFC 7230 and RFC 3986
	org.apache.coyote.http11.Http11InputBuffer.parseRequestLine(Http11InputBuffer.java:483)
	org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:684)
	org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
	org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:808)
	org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1498)
	org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	java.lang.Thread.run(Thread.java:745)

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

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描述

因为Tomcat严格按照 RFC 3986规范进行访问解析，而 RFC 3986规范定义了Url中只允许包含英文字母（a-zA-Z）、数字（0-9）、-_.~4个特殊字符以及所有保留字符(RFC3986中指定了以下字符为保留字符：! * ’ ( ) ; : @ & = + $ , / ? # [ ])。传入的参数中有"{"不在RFC3986中的保留字段中，所以会报这个错

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我的Tomcat 版本

解决：

   1.降低版本 v8.0.2

   2.修改配置

       1） 修改apache-tomcat-8.5.42\conf\catalina.properties

                行：214

 tomcat.util.http.parser.HttpParser.requestTargetAllow=|{}[]

       2）修改apache-tomcat-8.5.42\conf\server.xml

                行：69         

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测试