My：Invalid character found in the request target. The valid characters are defined in RFC 7230 and R

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博客讲述了在使用Tomcat 8.5时遇到的一个问题，即HTTP请求的目标中包含了无效字符'|'，导致HTTP状态400 - 错误请求。这个问题源于RFC 7230和RFC 3986定义的有效字符限制。错误出现在前端和后端代码中，服务器日志记录了异常。解决方案是使用Tomcat 8.0.30代替Tomcat 8.5。

前端代码报错：

HTTP Status 400 – Bad Request

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:1149)

java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)

org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)

java.lang.Thread.run(Thread.java:748)

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

Apache Tomca8.5.4

后端代码报错：

信息: Error parsing HTTP request header

Note: further occurrences of HTTP header parsing errors will be logged at DEBUG level.

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:483)

at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:684)

at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)

at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:808)

at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1498)

at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)

at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)

at java.lang.Thread.run(Thread.java:748)

浏览器错误显示：

解决博客：

Tomcat 8 is not able to handle get request with '|' in query parameters?

https://stackoverflow.com/questions/41053653/tomcat-8-is-not-able-to-handle-get-request-with-in-query-parameters

I am using Tomcat 8. In one case I need to handle external request coming from external source where the request has a parameters where it is separated by |.

翻译：我用的是Tomcat8。在一种情况下，我需要处理来自外部源的外部请求，其中请求有一个参数，该参数用分隔。

Request is looks like this:

http://localhost:8080/app/handleResponse?msg=name|id|

In this case I am getting following error.

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:467)

at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:667)

at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)

at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:789)

at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1455)

at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)