tomcat7.088报错Error parsing HTTP request header

八月 19, 2019 10:23:57 上午 org.apache.coyote.http11.AbstractHttp11Processor process
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.InternalInputBuffer.parseRequestLine(InternalInputBuffer.java:194)
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1052)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318)
	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)

报错:The valid characters are defined in RFC 7230 and RFC 3986

项目环境使用的tomcat7.0.88

通过网上查找之前遇到此问题人的解决办法,发现Tomcat在 7.0.73, 8.0.39, 8.5.7 版本后,在http解析时做了严格限制,其根据RFC3986文档规定,请求的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。用浏览器地址输入的URL死活不能包含有任何特殊字符。否则会返回400 状态码。

若请求中包含| {  } 三个特殊字符,则使用如下配置即可解决(conf/catalina.properties):

tomcat.util.http.parser.HttpParser.requestTargetAllow=|{}
org.apache.tomcat.util.buf.UDecoder.ALLOW_ENCODED_SLASH=true

若请求中包含除以上三个特殊字符以外的特殊字符,则需要(conf/server.xml的connector节点中增加如下配置(我项目上未用到此种方式,参考别人的):

relaxedPathChars="|{}[],"
relaxedQueryChars="|{}[],"

参考链接:https://yq.aliyun.com/articles/641394

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