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Tomcat中Invalid character found in the request target. The valid characters are defined in RFC 7230解决

程序员文章站 2022-07-14 18:40:16
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关于Tomcat中Invalid character found in the request target. The valid characters are defined in RFC 7230 and RFC xxxx的问题解决方案

一. 异常现象

我在编写SpringMVC传参案例时,通过浏览器的url地址栏给后端的数组或集合类型对象传递参数,url参数中带有”[]“符号,如下所示:

Tomcat中Invalid character found in the request target. The valid characters are defined in RFC 7230解决结果请求后产生了如下异常提示信息:

Invalid character found in the request target. The valid characters are defined in RFC 7230 and RFC 3986

[http-nio-8087-exec-5] 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$ConnectionHandler.process(AbstractProtocol.java:800)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1471)
    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)    

二. 异常原因

从错误日志中看到Error parsing HTTP request header 负责解析http请求的是org.apache.tomcat.util.http.parser.HttpParser,它对请求对URL中对字符做了限制,具体代码如下: IS_NOT_REQUEST_TARGET[]中定义了一堆not request target。

if(IS_CONTROL[i] || i > 127 || i == 32 || i == 34 || i == 35 || i == 60 || i == 62 || i == 92 || i == 94 || i == 96 || i == 123 || i == 124 || i == 125) {
       IS_NOT_REQUEST_TARGET[i] = true;
}

这个问题是因为高版本的tomcat中增加了新特性:

就是严格按照 RFC 3986规范进行访问解析,而 RFC 3986规范定义了Url中只允许包含英文字母,如下:

(a-zA-Z)、数字(0-9)、-_.~4个特殊字符以及所有保留字符(RFC3986中指定了以下字符为保留字符:! * ’ ( ) ; : @ & = + $ , / ? # [ ])。

而我们的系统在通过地址传参时,在url中传了一段json,传入的参数中有”{“不在RFC3986中的保留字段中,所以会报这个错。

所以简单点说,就是我们的URL中不能包含如下特殊的字符:

键盘上那些控制键:(<32或者=127)
非英文字符(>127)
空格(32)
双引号(34)
#(35)
<(60)
>(62)
反斜杠(92)
^(94)
TAB上面那个键,~(96)
{(123)
}(124)
|(125)

三. 解决办法

1. 首先找到自己的tomcat安装目录

Tomcat中Invalid character found in the request target. The valid characters are defined in RFC 7230解决

2. 修改配置文件

2.1 在conf/catalina.properties中最后添加2行:

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

如下图所示:

Tomcat中Invalid character found in the request target. The valid characters are defined in RFC 7230解决

2.2 在conf/server.xml中的<Connector>节点中,添加2个属性: 

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

如下图所示:

Tomcat中Invalid character found in the request target. The valid characters are defined in RFC 7230解决

然后重启自己的项目即可。

相关标签: 异常解决