沒有錯誤，但映射不起作用春季啓動+ tomcat 8.0

我想創建一個運行在春季啓動的小應用程序。當我將它打包成一個jar文件時，應用程序可以在本地機器上順利運行。我決定將它部署在AWS elastic beanstalk上，所以我做了創建.war文件所需的更改（https://docs.spring.io/spring-boot/docs/current/reference/html/howto-traditional-deployment.html）沒有錯誤，但映射不起作用春季啓動+ tomcat 8.0

我想試試它在本地TOMCAT上運行。所以我把戰爭文件放在webapps目錄下，然後運行Tomcat 8.0 \ bin \ Tomcat8.exe

控制檯中的日誌看起來沒問題，甚至有一條信息表明/hello路由被映射。服務器運行，但是當我輸入localhost時：8080/hello沒有任何返回。沒有錯誤，只是一個空白的頁面。

........... 

rtInternal Starting Servlet Engine: Apache Tomcat/8.0.32 
13-Feb-2016 23:57:32.965 INFO [localhost-startStop-1] org.apache.catalina.startu 
p.HostConfig.deployWAR Deploying web application archive C:\Program Files\Apache 
Software Foundation\Tomcat 8.0\webapps\superheroes-0.0.1-SNAPSHOT.war 
13-Feb-2016 23:57:43.058 INFO [localhost-startStop-1] org.apache.jasper.servlet. 
TldScanner.scanJars 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 scan 
ned but no TLDs were found in them. Skipping unneeded JARs during scanning can i 
mprove startup time and JSP compilation time. 

    . ____   _   __ _ _ 
/\\/___'_ __ _ _(_)_ __ __ _ \ \ \ \ 
(()\___ | '_ | '_| | '_ \/ _` | \ \ \ \ 
\\/ ___)| |_)| | | | | || (_| | )))) 
    ' |____| .__|_| |_|_| |_\__, |//// 
=========|_|==============|___/=/_/_/_/ 
:: Spring Boot ::  (v1.3.2.RELEASE) 

2016-02-13 23:57:46.723 INFO 7804 --- [ost-startStop-1] com.ga1.SuperHeroesAppl 
ication   : Starting SuperHeroesApplication v0.0.1-SNAPSHOT on Kamil-PC 
with PID 7804 (started by Kamil in C:\Program Files\Apache Software Foundation\T 
omcat 8.0) 
2016-02-13 23:57:46.734 INFO 7804 --- [ost-startStop-1] com.ga1.SuperHeroesAppl 
ication   : No active profile set, falling back to default profiles: def 
ault 
2016-02-13 23:57:47.076 INFO 7804 --- [ost-startStop-1] ationConfigEmbeddedWebA 
pplicationContext : Refreshing org.springframework.boot.context.embedded.Annotat 
[email protected]: startup date [Sat Feb 13 23:57:4 
7 ICT 2016]; root of context hierarchy 
2016-02-13 23:57:49.030 INFO 7804 --- [ost-startStop-1] o.s.b.f.s.DefaultListab 
leBeanFactory  : Overriding bean definition for bean 'beanNameViewResolver' w 
ith a different definition: replacing [Root bean: class [null]; scope=; abstract 
=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=tru 
e; primary=false; factoryBeanName=org.springframework.boot.autoconfigure.web.Err 
orMvcAutoConfiguration$WhitelabelErrorViewConfiguration; factoryMethodName=beanN 
ameViewResolver; initMethodName=null; destroyMethodName=(inferred); defined in c 
lass path resource [org/springframework/boot/autoconfigure/web/ErrorMvcAutoConfi 
guration$WhitelabelErrorViewConfiguration.class]] with [Root bean: class [null]; 
scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; auto 
wireCandidate=true; primary=false; factoryBeanName=org.springframework.boot.auto 
configure.web.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter; factoryMet 
hodName=beanNameViewResolver; initMethodName=null; destroyMethodName=(inferred); 
defined in class path resource [org/springframework/boot/autoconfigure/web/WebM 
vcAutoConfiguration$WebMvcAutoConfigurationAdapter.class]] 
2016-02-13 23:57:49.775 INFO 7804 --- [ost-startStop-1] o.s.web.context.Context 
Loader   : Root WebApplicationContext: initialization completed in 2701 
ms 
2016-02-13 23:57:50.957 INFO 7804 --- [ost-startStop-1] b.a.w.TomcatWebSocketCo 
ntainerCustomizer : NonEmbeddedServletContainerFactory detected. Websockets supp 
ort should be native so this normally is not a problem. 
2016-02-13 23:57:51.674 INFO 7804 --- [ost-startStop-1] o.s.b.c.e.ServletRegist 
rationBean  : Mapping servlet: 'dispatcherServlet' to [/] 
2016-02-13 23:57:51.676 INFO 7804 --- [ost-startStop-1] o.s.b.c.embedded.Filter 
RegistrationBean : Mapping filter: 'errorPageFilter' to: [/*] 
2016-02-13 23:57:51.677 INFO 7804 --- [ost-startStop-1] o.s.b.c.embedded.Filter 
RegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*] 
2016-02-13 23:57:51.678 INFO 7804 --- [ost-startStop-1] o.s.b.c.embedded.Filter 
RegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*] 
2016-02-13 23:57:51.680 INFO 7804 --- [ost-startStop-1] o.s.b.c.embedded.Filter 
RegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*] 
2016-02-13 23:57:51.681 INFO 7804 --- [ost-startStop-1] o.s.b.c.embedded.Filter 
RegistrationBean : Mapping filter: 'requestContextFilter' to: [/*] 
2016-02-13 23:57:52.361 INFO 7804 --- [ost-startStop-1] s.w.s.m.m.a.RequestMapp 
ingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.cont 
[email protected]08: startup date 
[Sat Feb 13 23:57:47 ICT 2016]; root of context hierarchy 
2016-02-13 23:57:52.635 INFO 7804 --- [ost-startStop-1] s.w.s.m.m.a.RequestMapp 
ingHandlerMapping : Mapped "{[/superHero],methods=[POST]}" onto public org.sprin 
gframework.http.ResponseEntity<java.lang.Void> com.ga1.superheroes.MainControlle 
r.createSuperHero(com.ga1.superheroes.repository.RepositorySuperHero) 
2016-02-13 23:57:52.639 INFO 7804 --- [ost-startStop-1] s.w.s.m.m.a.RequestMapp 
ingHandlerMapping : Mapped "{[/superHero],methods=[GET]}" onto public org.spring 
framework.http.ResponseEntity<com.ga1.superheroes.repository.RepositorySuperHero 
> com.ga1.superheroes.MainController.getSuperHero(java.lang.String) 
2016-02-13 23:57:52.640 INFO 7804 --- [ost-startStop-1] s.w.s.m.m.a.RequestMapp 
ingHandlerMapping : Mapped "{[/superHeroes],methods=[GET]}" onto public org.spri 
ngframework.http.ResponseEntity<java.util.List<java.lang.String>> com.ga1.superh 
eroes.MainController.getSuperHeroes() 
2016-02-13 23:57:52.641 INFO 7804 --- [ost-startStop-1] s.w.s.m.m.a.RequestMapp 
ingHandlerMapping : Mapped "{[/hello],methods=[GET]}" onto public org.springfram 
ework.http.ResponseEntity<java.lang.String> com.ga1.superheroes.MainController.h 
ello() 
2016-02-13 23:57:52.654 INFO 7804 --- [ost-startStop-1] s.w.s.m.m.a.RequestMapp 
ingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.Res 
ponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframewo 
rk.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServ 
letRequest) 
2016-02-13 23:57:52.655 INFO 7804 --- [ost-startStop-1] s.w.s.m.m.a.RequestMapp 
ingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.spr 
ingframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web 
.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.serv 
let.http.HttpServletResponse) 
2016-02-13 23:57:52.733 INFO 7804 --- [ost-startStop-1] o.s.w.s.handler.SimpleU 
rlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class or 
g.springframework.web.servlet.resource.ResourceHttpRequestHandler] 
2016-02-13 23:57:52.733 INFO 7804 --- [ost-startStop-1] o.s.w.s.handler.SimpleU 
rlHandlerMapping : Mapped URL path [/**] onto handler of type [class org.spring 
framework.web.servlet.resource.ResourceHttpRequestHandler] 
2016-02-13 23:57:52.843 INFO 7804 --- [ost-startStop-1] o.s.w.s.handler.SimpleU 
rlHandlerMapping : Mapped URL path [/**/favicon.ico] onto handler of type [clas 
s org.springframework.web.servlet.resource.ResourceHttpRequestHandler] 
2016-02-13 23:57:54.877 INFO 7804 --- [ost-startStop-1] org.mongodb.driver.clus 
ter    : Cluster created with settings {hosts=[localhost:27017], mode 
=SINGLE, requiredClusterType=UNKNOWN, serverSelectionTimeout='30000 ms', maxWait 
QueueSize=500} 
2016-02-13 23:57:55.325 INFO 7804 --- [localhost:27017] org.mongodb.driver.conn 
ection   : Opened connection [connectionId{localValue:1, serverValue:16 
}] to localhost:27017 
2016-02-13 23:57:55.328 INFO 7804 --- [localhost:27017] org.mongodb.driver.clus 
ter    : Monitor thread successfully connected to server with descrip 
tion ServerDescription{address=localhost:27017, type=STANDALONE, state=CONNECTED 
, ok=true, version=ServerVersion{versionList=[3, 0, 5]}, minWireVersion=0, maxWi 
reVersion=3, maxDocumentSize=16777216, roundTripTimeNanos=876166} 
2016-02-13 23:57:55.549 INFO 7804 --- [ost-startStop-1] o.s.j.e.a.AnnotationMBe 
anExporter  : Registering beans for JMX exposure on startup 
2016-02-13 23:57:55.590 INFO 7804 --- [ost-startStop-1] com.ga1.SuperHeroesAppl 
ication   : Started SuperHeroesApplication in 11.432 seconds (JVM runnin 
g for 24.405) 
13-Feb-2016 23:57:55.716 INFO [localhost-startStop-1] org.apache.catalina.startu 
p.HostConfig.deployWAR Deployment of web application archive C:\Program Files\Ap 
ache Software Foundation\Tomcat 8.0\webapps\superheroes-0.0.1-SNAPSHOT.war has f 
inished in 22,750 ms 
13-Feb-2016 23:57:55.721 INFO [main] org.apache.coyote.AbstractProtocol.start St 
arting ProtocolHandler ["http-nio-8080"] 
13-Feb-2016 23:57:55.737 INFO [main] org.apache.coyote.AbstractProtocol.start St 
arting ProtocolHandler ["ajp-nio-8009"] 
13-Feb-2016 23:57:55.742 INFO [main] org.apache.catalina.startup.Catalina.start 
Server startup in 22911 ms

下面是我的：POM，控制器和主要文件

<?xml version="1.0" encoding="UTF-8"?> 
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> 
    <modelVersion>4.0.0</modelVersion> 

    <groupId>com.ga1</groupId> 
    <artifactId>superheroes</artifactId> 
    <version>0.0.1-SNAPSHOT</version> 
    <packaging>war</packaging> 

    <name>superheroes</name> 
    <description>really super</description> 

    <parent> 
     <groupId>org.springframework.boot</groupId> 
     <artifactId>spring-boot-starter-parent</artifactId> 
     <version>1.3.2.RELEASE</version> 
     <relativePath /> <!-- lookup parent from repository --> 
    </parent> 

    <properties> 
<!--  <tomcat.version>8.0.8</tomcat.version> --> 
<!--  <start-class>com.ga1.SuperHeroesApplication</start-class> --> 
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> 
     <java.version>1.8</java.version> 
    </properties> 

    <dependencies> 
     <dependency> 
      <groupId>com.google.guava</groupId> 
      <artifactId>guava</artifactId> 
      <version>19.0</version> 
     </dependency> 
     <dependency> 
      <groupId>org.apache.commons</groupId> 
      <artifactId>commons-lang3</artifactId> 
      <version>3.3.2</version> 
     </dependency> 
     <dependency> 
      <groupId>org.mongodb</groupId> 
      <artifactId>mongo-java-driver</artifactId> 
      <version>3.2.0</version> 
     </dependency> 
     <dependency> 
      <groupId>org.mockito</groupId> 
      <artifactId>mockito-all</artifactId> 
      <version>1.9.5</version> 
      <scope>test</scope> 
     </dependency> 
     <dependency> 
      <groupId>com.google.code.gson</groupId> 
      <artifactId>gson</artifactId> 
      <version>2.5</version> 
      <scope>compile</scope> 
     </dependency> 
     <dependency> 
      <groupId>org.springframework.boot</groupId> 
      <artifactId>spring-boot-starter-web</artifactId> 
     </dependency> 
     <dependency> 
      <groupId>org.springframework.boot</groupId> 
      <artifactId>spring-boot-starter</artifactId> 
     </dependency> 
     <dependency> 
      <groupId>org.springframework.boot</groupId> 
      <artifactId>spring-boot-starter-tomcat</artifactId> 
      <scope>provided</scope> 
     </dependency> 
     <dependency> 
      <groupId>org.springframework.boot</groupId> 
      <artifactId>spring-boot-starter-test</artifactId> 
      <scope>test</scope> 
     </dependency> 
     <dependency> 
      <groupId>org.mongodb</groupId> 
      <artifactId>mongo-java-driver</artifactId> 
      <version>3.2.1</version> 
     </dependency> 
    </dependencies> 

    <build> 
     <plugins> 
      <plugin> 
       <groupId>org.springframework.boot</groupId> 
       <artifactId>spring-boot-maven-plugin</artifactId> 
      </plugin> 
     </plugins> 
    </build> 


</project>

控制器：

package com.ga1.superheroes; 

import org.springframework.http.HttpStatus; 
import org.springframework.http.ResponseEntity; 
import org.springframework.web.bind.annotation.RequestMapping; 
import org.springframework.web.bind.annotation.RequestMethod; 
import org.springframework.web.bind.annotation.RestController; 

@RestController 
public class MainController { 

    @RequestMapping(value = "/hello", method = RequestMethod.GET) 
    public ResponseEntity<String> hello() { 
     return new ResponseEntity<>("Hello World", HttpStatus.OK); 
    } 

}

和主營：

package com.ga1; 

import org.springframework.boot.SpringApplication; 
import org.springframework.boot.autoconfigure.SpringBootApplication; 
import org.springframework.boot.builder.SpringApplicationBuilder; 
import org.springframework.boot.context.web.SpringBootServletInitializer; 

@SpringBootApplication 
public class SuperHeroesApplication extends SpringBootServletInitializer { 

    public static void main(String[] args) { 
     SpringApplication.run(SuperHeroesApplication.class, args); 
    } 

    @Override 
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) { 
     return application.sources(SuperHeroesApplication.class); 
    } 

}

來源

2016-02-13 GA1

我認爲問題出在您使用的URL上。由於您現在正在獨立Tomcat上進行部署，因此除非您在application.properties中指定上下文，否則您的戰爭將部署在通常與war文件名匹配的上下文中。你可以提供你的application.properties。

可以這樣設置上下文中application.properties：

server.contextPath=/<whatever>

否則，我打賭你的URL將像這樣的訪問爲是：

/superheroes-0.0.1-SNAPSHOT/hello

來源

2016-02-13 17:14:01 pczeus

好快啊！但我還有一個問題。當我調用不存在的映射時，爲什麼我的應用程序不會崩潰？ – GA1

您評論說沒有任何東西會返回，只是一個空白頁面。你應該得到一個404錯誤 - 找不到。 – pczeus

但我甚至在application.properties中給出了我的上下文路徑，並嘗試在本地運行爲一個jar文件。它給我404白色標籤頁錯誤。任何人都可以在這方面建議我？ –

沒有錯誤，但映射不起作用春季啓動+ tomcat 8.0

回答

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