JavaWeb/Tomcat java.lang.IllegalArgumentException: Invalid character found in the request target.

博客围绕Tomcat报错展开,介绍了查找问题的方法,如在浏览器用F12抓包、检查get方法中url路径。作者因使用EL表达式时在url后加多余符号导致错误,解决方法是通过抓包删除多余符号。

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Tomcat报错

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

查找问题

在浏览器中打开该网页,使用F12进行抓包。
对get方法中的url路径进行检查。
我是因使用EL表达式时不小心在url后加了一个}导致错误

解决方法

通过抓包删除多余的符号即可

信息: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: /usr/java/packages/lib:/usr/lib64:/lib64:/lib:/usr/lib 6月 07, 2025 4:55:21 下午 org.apache.coyote.AbstractProtocol init 信息: Initializing ProtocolHandler ["http-nio-0.0.0.0-8080"] 6月 07, 2025 4:55:21 下午 org.apache.tomcat.util.net.NioSelectorPool getSharedSelector 信息: Using a shared selector for servlet write/read 6月 07, 2025 4:55:21 下午 org.apache.coyote.AbstractProtocol init 信息: Initializing ProtocolHandler ["ajp-nio-8009"] 6月 07, 2025 4:55:21 下午 org.apache.coyote.AbstractProtocol init 严重: Failed to initialize end point associated with ProtocolHandler ["ajp-nio-8009"] java.lang.IllegalArgumentException: timeout < 0 at java.base/sun.nio.ch.ServerSocketAdaptor.setSoTimeout(ServerSocketAdaptor.java:162) at org.apache.tomcat.util.net.NioEndpoint.bind(NioEndpoint.java:352) at org.apache.tomcat.util.net.AbstractEndpoint.init(AbstractEndpoint.java:823) at org.apache.coyote.AbstractProtocol.init(AbstractProtocol.java:476) at org.apache.catalina.connector.Connector.initInternal(Connector.java:960) at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102) at org.apache.catalina.core.StandardService.initInternal(StandardService.java:568) at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102) at org.apache.catalina.core.StandardServer.initInternal(StandardServer.java:871) at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102) at org.apache.catalina.startup.Catalina.load(Catalina.java:592) at org.apache.catalina.startup.Catalina.load(Catalina.java:615) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:568) at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:308) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:482) 6月 07, 2025 4:55:21 下午 org.apache.catalina.core.StandardService initInternal 严重: Failed to initialize connector [Connector[AJP/1.3-8009]] org.apache.catalina.LifecycleException: Failed to initialize component [Connector[AJP/1.3-8009]] at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:107) at org.apache.catalina.core.StandardService.initInternal(StandardService.java:568) at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102) at org.apache.catalina.core.StandardServer.initInternal(StandardServer.java:871) at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102) at org.apache.catalina.startup.Catalina.load(Catalina.java:592) at org.apache.catalina.startup.Catalina.load(Catalina.java:615) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:568) at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:308) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:482) Caused by: org.apache.catalina.LifecycleException: Protocol handler initialization failed at org.apache.catalina.connector.Connector.initInternal(Connector.java:962) at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102) ... 12 more Caused by: java.lang.IllegalArgumentException: timeout < 0 at java.base/sun.nio.ch.ServerSocketAdaptor.setSoTimeout(ServerSocketAdaptor.java:162) at org.apache.tomcat.util.net.NioEndpoint.bind(NioEndpoint.java:352) at org.apache.tomcat.util.net.AbstractEndpoint.init(AbstractEndpoint.java:823) at org.apache.coyote.AbstractProtocol.init(AbstractProtocol.java:476) at org.apache.catalina.connector.Connector.initInternal(Connector.java:960) ... 13 more 6月 07, 2025 4:55:21 下午 org.apache.catalina.startup.Catalina load 信息: Initialization processed in 8287 ms 6月 07, 2025 4:55:22 下午 org.apache.catalina.core.StandardService startInternal 信息: Starting service Catalina 6月 07, 2025 4:55:22 下午 org.apache.catalina.core.StandardEngine startInternal 信息: Starting Servlet Engine: Apache Tomcat/8.0.53 6月 07, 2025 4:55:29 下午 org.apache.jasper.servlet.TldScanner scanJars 信息: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time. 6月 07, 2025 4:55:30 下午 org.apache.catalina.util.SessionIdGeneratorBase createSecureRandom 警告: Creation of SecureRandom instance for session ID generation using [SHA1PRNG] took [319] milliseconds. 6月 07, 2025 4:55:34 下午 org.apache.jasper.servlet.TldScanner scanJars 信息: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time. 6月 07, 2025 4:55:34 下午 org.apache.coyote.AbstractProtocol start 信息: Starting ProtocolHandler ["http-nio-0.0.0.0-8080"] 6月 07, 2025 4:55:35 下午 org.apache.catalina.startup.Catalina start
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06-08
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