java线程中出现OutOfMemoryError，如何处理

php小编鱼仔为您解答：当在java线程中出现OutOfMemoryError时，通常是由于内存泄漏或内存消耗过大导致的。解决方法包括优化代码逻辑，检查是否有未关闭的资源，调整JVM参数等。另外，可以通过工具查看内存使用情况，定位问题所在。通过这些方法，可以有效地处理java线程中的OutOfMemoryError问题，保证程序稳定运行。

问题内容

ERROR 1 --- [io-8080-exec-10] o.a.c.c.C. [. [. [/] . [dispatcherServlet]: Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception

org.springframework.security.web.firewall.RequestRejectedException: The request was rejected because the URL contained a potentially malicious String ";"
        at org.springframework.security.web.firewall. StrictHttpFirewall.rejectedBlocklistedUrls(StrictHttpFirewall.java:535) ~[spring-security-web-5.7.3.jar!/:5.7.3] 
        at org.springframework.security.web.firewall.StrictHttpFirewall.getFirewalledRequest(StrictHttpFirewall.java:505) ~[spring-security-web-5.7.3.jar!/:5.7.3] 
        at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:206) ~[spring-security-web-5.7.3.jar!/:5.7.3]
        at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:186) ~[spring-security-web-5.7.3.jar!/:5.7.3]
        at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:354) ~[spring-web-5.3.23.jar!/:5.3.23] 
        at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:267) ~[spring-web-5.3.23.jar!/:5.3.23] 
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.65.jar!/:na] 
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.65.jar!/:na] 
        at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.23.jar!/:5.3.23] 
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.23.jar!/:5.3.23] 
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.65.jar!/:na] 
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.65.jar!/:na] 
        at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.3.23.jar!/:5.3.23] 
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.23.jar!/:5.3.23] 
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.65.jar!/:na] 
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.65.jar!/:na] 
        at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.23.jar!/:5.3.23] 
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.23.jar!/:5.3.23] 
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.65.jar!/:na] 
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.65.jar!/:na] 
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:197) ~[tomcat-embed-core-9.0.65.jar!/:na] 
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) ~[tomcat-embed-core-9.0.65.jar!/:na] 
        at org.apache.catalina.authenticator. AuthenticatorBase.invoke(AuthenticatorBase.java:541) ~[tomcat-embed-core-9.0.65.jar!/:na]
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:135) ~[tomcat-embed-core-9.0.65.jar!/:na] 
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.65.jar!/:na] 
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) ~[tomcat-embed-core-9.0.65.jar!/:na] 
        at org.apache.catalina.connector. CoyoteAdapter.service(CoyoteAdapter.java:360) ~[tomcat-embed-core-9.0.65.jar!/:na]
        at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:399) ~[tomcat-embed-core-9.0.65.jar!/:na] 
        at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.65.jar!/:na] 
        at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:890) ~[tomcat-embed-core-9.0.65.jar!/:na] 
        at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1789) ~[tomcat-embed-core-9.0.65.jar!/:na] 
        at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.65.jar!/:na]
        at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) ~[tomcat-embed-core-9.0.65.jar!/:na] 
        at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[tomcat-embed-core-9.0.65.jar!/:na] 
        at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.65.jar!/:na] 
        at java.base/java.lang.Thread.run(Thread.java:840) ~[na:na]


Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "ClientThread";


Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "WebSocket background processing";

我调试整个应用程序并使用日志记录方式来识别但无法解决它。

解决方法

处理此类错误取决于上下文和特定应用程序要求。以下是您可以考虑的一些一般策略：

1. 增加堆大小：

1. 分析内存使用情况： 使用 VisualVM、YourKit 等工具。使线程变得愚蠢并检查泄漏在哪里。

2. 优化数据结构和算法

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