java - 如何修复tomcat org.apache.tomcat.util.http.parser.HttpParser. Character [[] is not allowed and will continue to reject

Question

我的请求URL中有字符[和]，项目部署在Tomcat8.5.33上。当我发布请求时发生了一些异常。

20-Sep-2018 10:55:36.494 WARNING [http-nio-8075-exec-2] org.apache.tomcat.util.http.parser.HttpParser.<clinit> Character [[] is not allowed and will continue to be rejected.
20-Sep-2018 10:55:36.494 WARNING [http-nio-8075-exec-2] org.apache.tomcat.util.http.parser.HttpParser.<clinit> Character []] is not allowed and will continue to be rejected.
20-Sep-2018 10:56:07.083 INFO [http-nio-8075-exec-10] org.apache.coyote.http11.Http11Processor.service 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:479)
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:684)
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:806)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1498)
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Thread.java:748)

Answer 1

Tomcat8.5.33 不允许在 URL 中使用特殊字符，例如 |{}[]。有两种方法可以避免这种错误。

如果您的特殊字符是 |{} 之一，您可以直接添加配置 conf\catalina.properties，如下所示:

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

如果你的特殊字符是其他字符，你可以像下面这样配置conf\server.xml:

<Connector port="8075" protocol="HTTP/1.1" relaxedQueryChars='|[]'
               connectionTimeout="20000"
               redirectPort="8443" />