Ausnahme bei der Initialisierung des Kontexts - Abbrechen des Aktualisierungsversuchs: org.springframework.beans.factory.BeanCreationException

Question

Führen Sie meine Spring Boot-Anwendung (Beispielprogramm zum Buchen von Spring RESTful Webservice) erfolgreich in Eclipse aus. Allerdings, wenn ich den mvn package Befehl verwende, um JAR-Datei zu erhalten. Habe die folgende Nachricht erhalten. Jeder konnte helfen.

: Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'controllerSimple' defined in file 

ControllerSimple.java

package com.example; 

import java.io.IOException; 
import java.util.HashMap; 
import java.util.Map; 

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

@RestController 
public class ControllerSimple { 

    AddressList addressList; 
    ControllerSimple(){ 
     addressList = new AddressList(); 
    } 



@RequestMapping("/hello") 
public String index() { 
    return "Hello World"; 
} 

@RequestMapping(value="/crud_c_final", method=RequestMethod.POST) 
public ResponseEntity<AnEntity> create_key(@RequestBody AnEntity anentity) throws SMException, IOException{ 

    System.out.println("request create received!"); 
    if(anentity!=null){   
     String key = anentity.getKey(); 
     String name = anentity.getValue().getName(); 
     String address = anentity.getValue().getAddress(); 

... 
... 
} 

mvn Paket erhielt folgende Meldung:

:: Spring Boot ::  (v1.3.3.RELEASE) 


2016-04-12 00:41:16.113 INFO 16920 --- [   main] com.example.DemoApplicationTests   : Starting DemoApplicationTests on WINDOWS-80KONH6 with PID 16920 (C:\Users\MyPC\workspace\springb\target\test-classes started by MyPC in C:\Users\MyPC\workspace\springb) 

2016-04-12 00:41:16.114 INFO 16920 --- [   main] com.example.DemoApplicationTests   : No active profile set, falling back to default profiles: default 

2016-04-12 00:41:16.231 INFO 16920 --- [   main] s.c.a.AnnotationConfigApplicationContext : Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext@1197a46: startup date [Tue Apr 12 00:41:16 PDT 2016]; root of context hierarchy 
2016-04-12 00:41:18.951 WARN 16920 --- [   main] s.c.a.AnnotationConfigApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'controllerSimple' defined in file [C:\Users\MyPC\workspace\springb\target\classes\com\example\ControllerSimple.class]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.example.ControllerSimple]: Constructor threw exception; nested exception is java.lang.NoClassDefFoundError: org/apache/poi/util/HexDump 

2016-04-12 00:41:18.968 ERROR 16920 --- [   main] o.s.boot.SpringApplication    : Application startup failed 



org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'controllerSimple' defined in file [C:\Users\MyPC\workspace\springb\target\classes\com\example\ControllerSimple.class]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.example.ControllerSimple]: Constructor threw exception; nested exception is java.lang.NoClassDefFoundError: org/apache/poi/util/HexDump 

at  rg.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1105) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 

at  org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1050) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:510) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 

at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 

at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 

at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 

at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 

at  org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:772) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] 

at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:839) ~[spring-context-4.2.5.RELEASE.jar:4.2.5.RELEASE] 

at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:538) ~[spring-context-4.2.5.RELEASE.jar:4.2.5.RELEASE] 

at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:766) ~[spring-boot-1.3.3.RELEASE.jar:1.3.3.RELEASE] 

at org.springframework.boot.SpringApplication.createAndRefreshContext(SpringApplication.java:361) ~[spring-boot-1.3.3.RELEASE.jar:1.3.3.RELEASE] 

at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) ~[spring-boot-1.3.3.RELEASE.jar:1.3.3.RELEASE] 

at org.springframework.boot.test.SpringApplicationContextLoader.loadContext(SpringApplicationContextLoader.java:98) [spring-boot-1.3.3.RELEASE.jar:1.3.3.RELEASE] 

at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:98) [spring-test-4.2.5.RELEASE.jar:4.2.5.RELEASE] 

at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:116) [spring-test-4.2.5.RELEASE.jar:4.2.5.RELEASE] 

at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:83) [spring-test-4.2.5.RELEASE.jar:4.2.5.RELEASE] 

at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:117) [spring-test-4.2.5.RELEASE.jar:4.2.5.RELEASE] 

at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:83) [spring-test-4.2.5.RELEASE.jar:4.2.5.RELEASE] 

at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:228) [spring-test-4.2.5.RELEASE.jar:4.2.5.RELEASE] 

pom.xml

<?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.example</groupId> 
<artifactId>demo</artifactId> 
<version>0.0.1-SNAPSHOT</version> 
<packaging>jar</packaging> 

<name>demo</name> 
<description>Demo project for Spring Boot</description> 

<parent> 
    <groupId>org.springframework.boot</groupId> 
    <artifactId>spring-boot-starter-parent</artifactId> 
    <version>1.3.3.RELEASE</version> 
    <relativePath/> <!-- lookup parent from repository --> 
</parent> 

<properties> 
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> 
    <java.version>1.8</java.version> 
</properties> 

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

    <dependency> 
    <groupId>org.apache.tomcat.embed</groupId> 
    <artifactId>tomcat-embed-jasper</artifactId> 
    <scope>provided</scope> 
    </dependency> 

    <dependency> 
    <groupId>javax.servlet</groupId> 
    <artifactId>jstl</artifactId> 
    </dependency> 

    <dependency> 
     <groupId>org.springframework.boot</groupId> 
     <artifactId>spring-boot-starter-test</artifactId> 
     <scope>test</scope> 
    </dependency> 

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

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

Restfehler, Show kann die Hauptklasse nicht finden.

:[ERROR] Failed to execute goal org.springframework.boot:spring-boot-maven-plugin 
:1.3.3.RELEASE:repackage (default) on project demo: Execution default of goal or 
g.springframework.boot:spring-boot-maven-plugin:1.3.3.RELEASE:repackage failed: 
Unable to find a single main class from the following candidates [com.example.De 
moApplication, com.example.FileStorage, com.example.RandomGUID] -> [Help 1] 
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e swit 
ch. 
[ERROR] Re-run Maven using the -X switch to enable full debug logging. 
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please rea 
d the following articles: 
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginExecutio 
nException 

Answer 1

Dies ist Ihr Hauptfehler:

Error creating bean with name 'controllerSimple' defined in file [C:\Users\MyPC\workspace\springb\target\classes\com\example\ControllerSimple.class]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.example.ControllerSimple]: Constructor threw exception; nested exception is java.lang.NoClassDefFoundError: org/apache/poi/util/HexDump 

Sie sollten mehr Apache POI Abhängigkeit hinzu:

<dependency> 
    <groupId>org.apache.poi</groupId> 
    <artifactId>poi</artifactId> 
    <version>3.14</version> 
</dependency>