Tomcat IllegalArgumentException(Invalid character found in the request target) 问题解决

2018-09-06

线上环境中部署的 Tomcat 项目，出现部分页面无法打开的情况，但本地环境是好的。经过排查发现，本地 Tomcat版本为 7.0.77，而线上版本为 7.0.88。报错的具体描述为java.lang.IllegalArgumentException: Invalid character found in the request target. The valid characters are defined in RFC 7230 and RFC 3986。

描述

Tomcat 的日志如下：

INFO: 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

具体原因是，从 7.0.88 开始，Tomcat为了安全考虑，不在支持[,]这种参数传递方式了。解决办法如下，修改 $TOMCAT_HOME/conf/server.xml，新增 relaxedQueryChars="[,]"选项。

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<Connector port="8080" protocol="HTTP/1.1"connectionTimeout="20000"redirectPort="8444" relaxedQueryChars="[,]"/>

参考

1、https://github.com/bohnman/squiggly-java/issues/42#issuecomment-414673274

2、https://stackoverflow.com/questions/46251131/invalid-character-found-in-the-request-target-in-spring-boot

3、https://segmentfault.com/a/1190000009817997

4、https://www.jianshu.com/p/e7fbfa418744

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我最后的解决方式：encodeURIComponent 进行处理

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java.lang.IllegalArgumentException: Invalid character found in the request target. The valid charact

Tomcat IllegalArgumentException(Invalid character found in the request target) 问题解决

描述

参考

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