Amazon web services AWS EC2 tomcat权限被拒绝创建/写入文件

我有一只tomcat在弹性豆茎EC2上运行：

运行Tomcat 8 Java 8的64位Amazon Linux 2015.09 v2.0.4

当web应用程序想要创建新目录/文件时，我遇到问题。我在catalina.out中得到以下错误

java.io.IOException: java.io.FileNotFoundException: /home/ec2-user/images/companydata/images/2/10/ac3feab8-a2db-4052-9614-eea41c0a509e.png (Permission denied)
        at org.apache.catalina.core.ApplicationPart.write(ApplicationPart.java:121)
        at org.springframework.web.multipart.support.StandardMultipartHttpServletRequest$StandardMultipartFile.transferTo(StandardMultipartHttpServletRequest.java:260)
        at controler.RestControllerCompanyMobilePOST.uploadImage(RestControllerCompanyMobilePOST.java:183)
        at controler.RestControllerCompanyMobilePOST$$FastClassBySpringCGLIB$$538488ab.invoke(<generated>)
        at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
        at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:717)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
        at org.springframework.security.access.intercept.aopalliance.MethodSecurityInterceptor.invoke(MethodSecurityInterceptor.java:68)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
        at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:653)
        at controler.RestControllerCompanyMobilePOST$$EnhancerBySpringCGLIB$$1e56492.uploadImage(<generated>)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:497)
        at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221)
        at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137)
        at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)
        at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:776)
        at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:705)
        at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
        at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959)
        at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
        at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:967)
        at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:869)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
        at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:843)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:316)
        at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:126)
        at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:90)
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
        at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:114)
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
        at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:122)
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
        at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111)
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
        at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:168)
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
        at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:48)
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
        at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilterInternal(BasicAuthenticationFilter.java:213)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
        at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:205)
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
        at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:120)
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
        at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:64)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
        at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:91)
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
        at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:53)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
        at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
        at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:213)
        at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:176)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:85)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.springframework.boot.context.web.ErrorPageFilter.doFilter(ErrorPageFilter.java:116)
        at org.springframework.boot.context.web.ErrorPageFilter.access$000(ErrorPageFilter.java:60)
        at org.springframework.boot.context.web.ErrorPageFilter$1.doFilterInternal(ErrorPageFilter.java:91)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
        at org.springframework.boot.context.web.ErrorPageFilter.doFilter(ErrorPageFilter.java:109)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
        at org.apache.catalina.valves.RemoteIpValve.invoke(RemoteIpValve.java:676)
        at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:617)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518)
        at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091)
        at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:668)
        at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1521)
        at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1478)
        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)
        at java.lang.Thread.run(Thread.java:745)
Caused by: java.io.FileNotFoundException: /home/ec2-user/images/companydata/images/2/10/ac3feab8-a2db-4052-9614-eea41c0a509e.png (Permission denied)
        at java.io.FileOutputStream.open0(Native Method)
        at java.io.FileOutputStream.open(FileOutputStream.java:270)
        at java.io.FileOutputStream.<init>(FileOutputStream.java:213)
        at java.io.FileOutputStream.<init>(FileOutputStream.java:162)
        at org.apache.tomcat.util.http.fileupload.disk.DiskFileItem.write(DiskFileItem.java:395)
        at org.apache.catalina.core.ApplicationPart.write(ApplicationPart.java:119)
        ... 97 more

我可以看到tomcat是由用户tomcat启动的

因此，我更改了要存储所有详细信息的根文件夹，并将chown提供给了用户tomcat和组tomcat，还提供了chmod 777

/主页/ec2用户/图像/

DRWXRWX 2 tomcat tomcat 4096 Jan 5 19:40图像

但我得到了同样的权限被拒绝的错误

方法如下：

String StoreImageHere = 
                    locationOfCompanyData 
                    + File.separator
                    + locationOfImage 
                    + File.separator
                    + user.getCompany_id() 
                    + File.separator +
                    + notUpdatedImage.getServer_questionnaire_attempt_key()
                    + File.separator  ; 

            File uploadedFileFolderLocation = new File(locationRoot, StoreImageHere);           
            uploadedFileFolderLocation.mkdirs();

            String storeImageName = StoreImageHere + notUpdatedImage.getImage_name();   
            File uploadedFile = new File(locationRoot, storeImageName);                     

            try {
                file.transferTo(uploadedFile);
            } catch (IllegalStateException e) {
                e.printStackTrace();
                logger.error(user.getUsers_email()
                        + "  /api/mobile/uploadImage/{server_image_id}/ " 
                        + " userID[" + user.getUsers_id() + "]"
                        + " error[" + e.getMessage() + "]");
            } catch (IOException e) {
                e.printStackTrace();
                logger.error(user.getUsers_email()
                        + "  /api/mobile/uploadImage/{server_image_id}/ " 
                        + " userID[" + user.getUsers_id() + "]"
                        + " error[" + e.getMessage() + "]");
            }

            if(uploadedFile.exists()) {
                notUpdatedImage.setSync(ENUM_SYNC_STATUS.SYNCED.getValue());
                notUpdatedImage = mobileManagment.updateImage(user, notUpdatedImage, ENUM_ACTIVITY_TYPE.ANSWER_INPUT_UPLOADED);         
                 return new Gson().toJson(notUpdatedImage); 
            } else {
                logger.error(user.getUsers_email()
                        + "  /api/mobile/"+VERSION+"/uploadImage/{server_image_id}/ " 
                        + " userID[" + user.getUsers_id() + "]"
                        + " dest.exists() == false ");
            }

我跑

设置强制执行0

它回来了

setenforce:SELinux已禁用

在windows计算机上，它接受此参数

location.server.root=C:/Users/killesk\u beast/Desktop/temp/

在linux机器上，它需要

location.server.root=/home/ec2 user/images/

---

除非有一个我没有看到的简单错误，否则您可能仍然存在权限问题。 为了能够浏览/home/ec2 user/images，您的“tomcat”用户需要在所有上层目录（即home和ec2 user）上都有“x”。 您可能可以通过更改这些目录的模式以允许其他组执行它们来解决您的问题：

chmod o+x /home
chmod o+x /home/ec2-user

然而，您不应该在敏感系统上这样做。您可能希望尝试在适当的目录中写入和读取

如果它不能解决您的问题，那么您的问题可能与SELinux有关

您可以尝试使用以下命令进行检查：

setenforce 0

---

您可能仍然存在权限问题。 为了能够浏览/home/ec2 user/images，您的“tomcat”用户需要在所有上层目录（即home和ec2 user）上都有“x”。 您可能可以通过更改这些目录的模式以允许其他组执行它们来解决您的问题：

chmod o+x /home
chmod o+x /home/ec2-user

然而，您不应该在敏感系统上这样做。您可能希望尝试在适当的目录中写入和读取

如果它不能解决您的问题，那么您的问题可能与SELinux有关

您可以尝试使用以下命令进行检查：

setenforce 0

---

嗨，托马斯，我运行了那个命令，得到了->setenforce:SELinux被禁用了。嘿，托马斯，是的，我仍然看到相同的错误消息。我用我正在使用的方法和参数值更新了这个问题。可能是我在声明目录名时犯了一个简单的错误。不过更新了我的答案。嘿，chmod o+x/home+chmod o+x/home/ec2用户工作了。谢谢你的帮助，托马斯@托马斯尔。我面临着类似的问题，但当我更改ec2用户目录的权限时，我可以从运行在tomcat中的java程序创建新文件，但这会中断SSH登录，下次无法SSH到我的实例中。Killesk请更新，如果您在更改权限后没有遇到SSH问题。嗨，Thomas，我运行了该命令并得到->setenforce:SELinux被禁用Hey Thomas，是的，我仍然看到相同的错误消息。我用我正在使用的方法和参数值更新了这个问题。可能是我在声明目录名时犯了一个简单的错误。不过更新了我的答案。嘿，chmod o+x/home+chmod o+x/home/ec2用户工作了。谢谢你的帮助，托马斯@托马斯尔。我面临着类似的问题，但当我更改ec2用户目录的权限时，我可以从运行在tomcat中的java程序创建新文件，但这会中断SSH登录，下次无法SSH到我的实例中。Killesk请更新，如果您在更改权限后没有遇到SSH问题。