Tomcat：The valid characters are defined in RFC 7230 and RFC 3986 问题处理

系统管理员 2023-06-23 08:54 12阅读 0赞

前段时间遇到这个问题：

包含json字符串类型的参数的http请求失败，返回状态码400，提示invalid character found in the request target。

Tomcat在 7.0.73, 8.0.39, 8.5.7 版本后，添加了对于http头的验证。

新版本的Apache-tomcat-基本都覆盖在内的，好 我们直接贴解决方法：

**一：异常如下**

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)

**二：解决问题方式一**

[zcjw@iZbp1f0xuq9rc41s6gdvfyZ conf]$ pwd
    /usr/local/www/zcjw/apache-tomcat-8.5.43/conf
    
    [zcjw@iZbp1f0xuq9rc41s6gdvfyZ conf]$ vi server.xml
    
    修改成如下：
    <Connector port="9199" protocol="HTTP/1.1"
                   connectionTimeout="20000"
                   redirectPort="8443"
    			   relaxedQueryChars="[]|"
    			   relaxedPathChars="[]|"
    			   URIEncoding="UTF-8" />

加上这两项，URLEncoding 没有的话也要加上的

relaxedQueryChars="\[\]|"  
relaxedPathChars="\[\]|"

**问题处理成功。**

**三：解决问题方式二**

[zcjw@iZbp1f0xuq9rc41s6gdvfyZ conf]$ pwd
    /usr/local/www/zcjw/apache-tomcat-8.5.43/conf
    
    [zcjw@iZbp1f0xuq9rc41s6gdvfyZ conf]$ vi catalina.properties
    
    #修改成如下：
    tomcat.util.http.parser.HttpParser.requestTargetAllow=|{}?&

重启，然并卵 ：  
再试Tomcat VM启动时加上这个：

[zcjw@iZbp1f0xuq9rc41s6gdvfyZ bin]$ ./startup.sh -Dcatalina.config /usr/local/www/zcjw/apache-tomcat-8.5.43/conf/catalina.properties

发现更改 catalina.properties 的方式根本没有用，或者不是这么用的。请在评论告诉我

**方式二失败**

**推荐大家使用方式一**

参考来源：[接口访问报错：The valid characters are defined in RFC 7230 and RFC 3986][The valid characters are defined in RFC 7230 and RFC 3986]

[The valid characters are defined in RFC 7230 and RFC 3986]: https://www.lagou.com/lgeduarticle/17205.html