Spring Web adapter throws ErrorEntryFreeException #1482

longtutengfei · 2020-05-14T09:27:33Z

spring boot Controller 视图模板文件不存在时报 com.alibaba.csp.sentinel.ErrorEntryFreeException: The order of entry exit can't be paired with the order of entry, current entry in context: </**>, but expected: </test3>

<java.version>1.8</java.version>
<spring.cloud.version>Hoxton.SR4</spring.cloud.version>
<spring-cloud-alibaba.version>2.2.1.RELEASE</spring-cloud-alibaba.version>
<spring-boot.version>2.2.1.RELEASE</spring-boot.version>

@Controller
@RequestMapping("/")
public class IndexController {

    @RequestMapping("/index.html")
    public String indexHtml(){
        return "/index.html";
    }

    @RequestMapping("/test")
    public String test(){
        return "/btl/index.html";
    }

}

/btl 文件夹下不存 index.html 模板访问http://localhost/test

2020-05-14 17:17:18.869 ERROR 19004 --- [nio-9000-exec-2] o.s.web.servlet.HandlerExecutionChain    : HandlerInterceptor.afterCompletion threw exception

com.alibaba.csp.sentinel.ErrorEntryFreeException: The order of entry exit can't be paired with the order of entry, current entry in context: </**>, but expected: </test3>
	at com.alibaba.csp.sentinel.CtEntry.exitForContext(CtEntry.java:80) ~[sentinel-core-1.7.1.jar:1.7.1]
	at com.alibaba.csp.sentinel.CtEntry.trueExit(CtEntry.java:108) ~[sentinel-core-1.7.1.jar:1.7.1]
	at com.alibaba.csp.sentinel.CtEntry.exit(CtEntry.java:61) ~[sentinel-core-1.7.1.jar:1.7.1]
	at com.alibaba.csp.sentinel.Entry.exit(Entry.java:79) ~[sentinel-core-1.7.1.jar:1.7.1]
	at com.alibaba.csp.sentinel.adapter.spring.webmvc.AbstractSentinelInterceptor.traceExceptionAndExit(AbstractSentinelInterceptor.java:122) ~[sentinel-spring-webmvc-adapter-1.7.1.jar:na]
	at com.alibaba.csp.sentinel.adapter.spring.webmvc.AbstractSentinelInterceptor.afterCompletion(AbstractSentinelInterceptor.java:87) ~[sentinel-spring-webmvc-adapter-1.7.1.jar:na]
	at org.springframework.web.servlet.HandlerExecutionChain.triggerAfterCompletion(HandlerExecutionChain.java:179) ~[spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1136) [spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1057) [spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) [spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) [spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) [spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:634) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) [spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) [tomcat-embed-websocket-9.0.34.jar:9.0.34]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:712) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:459) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:384) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:312) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:171) [spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
	at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:316) [spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1373) [spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1118) [spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1057) [spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) [spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) [spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) [spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:634) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) [spring-webmvc-5.2.6.RELEASE.jar:5.2.6.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) [tomcat-embed-websocket-9.0.34.jar:9.0.34]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) [spring-web-5.2.6.RELEASE.jar:5.2.6.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.2.6.RELEASE.jar:5.2.6.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) [spring-web-5.2.6.RELEASE.jar:5.2.6.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.2.6.RELEASE.jar:5.2.6.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) [spring-web-5.2.6.RELEASE.jar:5.2.6.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.2.6.RELEASE.jar:5.2.6.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:373) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1590) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_60]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_60]
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.34.jar:9.0.34]
	at java.lang.Thread.run(Thread.java:745) [na:1.8.0_60]

The text was updated successfully, but these errors were encountered:

cdfive · 2020-05-14T15:50:06Z

Check if exists in log message:
... The attribute key '...' already exists in request, please set requestAttributeName``

The spring-cloud-starter-alibaba-sentinel has defined SentinelWebInterceptor, pay attention to not define it twice in your project.

Refer to #1392

longtutengfei · 2020-05-15T00:10:06Z

是的 csp log 出现了

2020-05-15 08:03:54.739 WARNING [{}] The attribute key '{0}' already exists in request, please set requestAttributeName

SentinelWebInterceptor 没有出现在项目配置，都是用的默认的

经常访问这个地址 http://localhost/test （有路由映射但是模板确实不存）这种情况抛出这个异常不会影响项目运行吧？

在举个例子 test4,test5 没有这个路由映射（@RequestMapping("/test4")）这种情况访问就不会抛出异常，单纯模板不存的情况下才抛出这个异常
项目引用的包

<dependencies>    
      <dependency>
           <groupId>org.springframework.boot</groupId>
           <artifactId>spring-boot-starter-web</artifactId>
       </dependency>

       <dependency>
           <groupId>com.alibaba.cloud</groupId>
           <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
       </dependency>
       <dependency>
           <groupId>com.alibaba.cloud</groupId>
           <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
       </dependency>
       <dependency>
           <groupId>com.alibaba.cloud</groupId>
           <artifactId>spring-cloud-starter-alibaba-sentinel</artifactId>
       </dependency>
       <dependency>
           <groupId>com.ibeetl</groupId>
           <artifactId>beetl-framework-starter</artifactId>
           <version>${beetl.version}</version>
       </dependency>
       <dependency>
           <groupId>cn.hutool</groupId>
           <artifactId>hutool-all</artifactId>
           <version>${hutool.version}</version>
       </dependency>
<dependencies>

cdfive · 2020-05-15T03:30:45Z

If the template /btl/index.html is not exists, the AbstractSentinelInterceptor will enter twice, which leads to the exception.

Maybe in SentinelWebAutoConfiguration of spring-cloud-starter-alibaba-sentinel,

SentinelProperties.Filter filterConfig = properties.getFilter();
registry.addInterceptor(sentinelWebInterceptorOptional.get())
    .order(filterConfig.getOrder())
    .addPathPatterns(filterConfig.getUrlPatterns())
    .excludePathPatterns(xxx)

We may need exclude some path xxx for SentinelWebInterceptor, such as "/login","/logout" or static resources, maybe a new config parameter excluedPathPatterns is needed.

Another way to solve this is add custom UrlCleaner.

@Component
public class CustomUrlCleaner implements UrlCleaner {

    @Override
    public String clean(String originUrl) {
//        return originUrl.endsWith(".html") ? "" : originUrl;
        return originUrl.equals("/**") ? "" : originUrl;
    }
}

Note that the originUrl of /btl/index.html is /**, since SentinelWebInterceptor use HandlerMapping.BEST_MATCHING_PATTERN_ATTRIBUTE to resolve the Spring Web URL pattern from the request attribute.

Considering the above situation and html template resources, and don't want to limit the html resource, this is better:
return originUrl.equals("/**") || originUrl.endsWith(".html") ? "" : originUrl;

sczyh30 · 2020-05-26T16:04:25Z

Any feedback?

longtutengfei · 2020-06-04T02:25:30Z

谢谢问题已解决

cdfive added integration/spring-cloud Issue related to Spring Cloud Alibaba integration kind/question Category issues related to questions or problems labels May 14, 2020

longtutengfei closed this as completed Jun 4, 2020

This was referenced Jun 8, 2020

ErrorEntryFreeException:current entry in context: </error> #1531

Closed

webmvc-adapter: improve set entry in request to avoid ErrorEntryFreeException #1533

Merged

sczyh30 mentioned this issue Jun 17, 2020

spring-cloud-alibaba-sentinel 2.2+ web adapter ErrorEntryFreeException when visiting view by forward:/xxx #1552

Closed

cdfive mentioned this issue Oct 26, 2020

ErrorEntryFreeException: The order of entry exit can't be paired with the order of entry, current entry in context #1811

Closed

cdfive mentioned this issue Feb 1, 2021

ErrorEntryFreeException: The order of entry exit can't be paired with the order of entry, current entry in context #1983

Closed

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Spring Web adapter throws ErrorEntryFreeException #1482

Spring Web adapter throws ErrorEntryFreeException #1482

longtutengfei commented May 14, 2020 •

edited by sczyh30

Loading

cdfive commented May 14, 2020

longtutengfei commented May 15, 2020 •

edited

Loading

cdfive commented May 15, 2020

sczyh30 commented May 26, 2020

longtutengfei commented Jun 4, 2020

Spring Web adapter throws ErrorEntryFreeException #1482

Spring Web adapter throws ErrorEntryFreeException #1482

Comments

longtutengfei commented May 14, 2020 • edited by sczyh30 Loading

cdfive commented May 14, 2020

longtutengfei commented May 15, 2020 • edited Loading

cdfive commented May 15, 2020

sczyh30 commented May 26, 2020

longtutengfei commented Jun 4, 2020

longtutengfei commented May 14, 2020 •

edited by sczyh30

Loading

longtutengfei commented May 15, 2020 •

edited

Loading