springboot java.util.concurrent.ExecutionException
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今天尝试使用SpringBoot部署项目,使用官网的一个小demo(http://projects.spring.io/spring-boot/)
pom.xml:
<parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.4.5.RELEASE</version></parent><dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency></dependencies>
package hello;import org.springframework.boot.*;import org.springframework.boot.autoconfigure.*;import org.springframework.stereotype.*;import org.springframework.web.bind.annotation.*;@Controller@EnableAutoConfigurationpublic class SampleController { @RequestMapping("/") @ResponseBody String home() { return "Hello World!"; } public static void main(String[] args) throws Exception { SpringApplication.run(SampleController.class, args); }}
启动报错:
2017-04-07 09:52:50.325 INFO 10640 --- [ main] springboot.SampleController : Starting SampleController on jiangshubian with PID 10640 (D:\IntelliJ_IDEA_Project\MavenTest\target\classes started by 123 in D:\IntelliJ_IDEA_Project\MavenTest)2017-04-07 09:52:50.332 INFO 10640 --- [ main] springboot.SampleController : No active profile set, falling back to default profiles: default2017-04-07 09:52:50.611 INFO 10640 --- [ main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@410676f3: startup date [Fri Apr 07 09:52:50 CST 2017]; root of context hierarchy2017-04-07 09:52:55.600 INFO 10640 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8080 (http)2017-04-07 09:52:55.616 INFO 10640 --- [ main] o.apache.catalina.core.StandardService : Starting service Tomcat2017-04-07 09:52:55.618 INFO 10640 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.0.372017-04-07 09:52:55.851 INFO 10640 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext2017-04-07 09:52:55.851 INFO 10640 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 5245 ms2017-04-07 09:52:56.816 INFO 10640 --- [ost-startStop-1] o.s.b.c.e.ServletRegistrationBean : Mapping servlet: 'dispatcherServlet' to [/]2017-04-07 09:52:56.828 ERROR 10640 --- [cat-startStop-1] org.apache.catalina.core.ContainerBase : A child container failed during startjava.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost].StandardContext[]]at java.util.concurrent.FutureTask.report(FutureTask.java:122) [na:1.7.0_80]at java.util.concurrent.FutureTask.get(FutureTask.java:188) [na:1.7.0_80]at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:915) ~[tomcat-embed-core-8.0.37.jar:8.0.37]at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:871) [tomcat-embed-core-8.0.37.jar:8.0.37]at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) [tomcat-embed-core-8.0.37.jar:8.0.37]at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1407) [tomcat-embed-core-8.0.37.jar:8.0.37]at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1397) [tomcat-embed-core-8.0.37.jar:8.0.37]at java.util.concurrent.FutureTask.run(FutureTask.java:262) [na:1.7.0_80]at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_80]at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_80]at java.lang.Thread.run(Thread.java:745) [na:1.7.0_80]Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost].StandardContext[]]at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:162) [tomcat-embed-core-8.0.37.jar:8.0.37]... 6 common frames omittedCaused by: java.lang.NoSuchMethodError: javax.servlet.ServletContext.addServlet(Ljava/lang/String;Ljavax/servlet/Servlet;)Ljavax/servlet/ServletRegistration$Dynamic;at org.springframework.boot.context.embedded.ServletRegistrationBean.onStartup(ServletRegistrationBean.java:190) ~[spring-boot-1.3.8.RELEASE.jar:1.3.8.RELEASE]at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.selfInitialize(EmbeddedWebApplicationContext.java:225) ~[spring-boot-1.3.8.RELEASE.jar:1.3.8.RELEASE]at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.access$000(EmbeddedWebApplicationContext.java:85) ~[spring-boot-1.3.8.RELEASE.jar:1.3.8.RELEASE]at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext$1.onStartup(EmbeddedWebApplicationContext.java:209) ~[spring-boot-1.3.8.RELEASE.jar:1.3.8.RELEASE]at org.springframework.boot.context.embedded.tomcat.TomcatStarter.onStartup(TomcatStarter.java:55) ~[spring-boot-1.3.8.RELEASE.jar:1.3.8.RELEASE]at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5303) ~[tomcat-embed-core-8.0.37.jar:8.0.37]at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) [tomcat-embed-core-8.0.37.jar:8.0.37]... 6 common frames omitted2017-04-07 09:52:56.831 ERROR 10640 --- [ main] org.apache.catalina.core.ContainerBase : A child container failed during start
--原因是在pom.xml中引入了:servlet-api 2.5版本导致,去掉后正常;
springboot depends on servlet3 or higher, so you should remove servlet-api-2.5:jar and other lower than 3.0 versions.
但是使用3.0-alpha-1发觉也不行。
<!-- https://mvnrepository.com/artifact/javax.servlet/servlet-api --><dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>3.0-alpha-1</version></dependency>
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