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Java Spring錯誤：使用名稱創建Bean時出錯：嵌套異常是org.springframework.beans.factory.BeanCreationException

2016-11-30 82 views
0

首先我想說我是Java編程的新手，並會盡我所能來解釋我的問題。Java Spring錯誤：使用名稱創建Bean時出錯：嵌套異常是org.springframework.beans.factory.BeanCreationException

我正在使用Spring框架和Gradle在Eclipse中進行項目工作。它在編碼過程早，但我試圖在控制檯中運行我的程序來測試並確保我沒有錯誤。然而，當我作爲一個Java項目中運行我一直遇到這樣的錯誤：

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'shoppingListController': Unsatisfied dependency expressed through field 'listRepo'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'shoppingListRepository': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Not a managed type: class org.elevenfifty.shopping.beans.ShoppingList 
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:569) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] 
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] 
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:349) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1219) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] 
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] 
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] 
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] 
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] 
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:751) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] 
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:861) ~[spring-context-4.3.3.RELEASE.jar:4.3.3.RELEASE] 
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:541) ~[spring-context-4.3.3.RELEASE.jar:4.3.3.RELEASE] 
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE] 
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:761) [spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE] 
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:371) [spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE] 
at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) [spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE] 
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1186) [spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE] 
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1175) [spring-boot-1.4.1.RELEASE.jar:1.4.1.RELEASE] 
at org.elevenfifty.shopping.Application.main(Application.java:10) [bin/:na] 
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_102] 
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_102] 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_102] 
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_102] 
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-1.4.1.RELEASE.jar:1.4.1.RELEASE] 

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'shoppingListRepository': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Not a managed type: class org.elevenfifty.shopping.beans.ShoppingList 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1583) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] 
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] 
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] 
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] 
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] 
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:207) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] 
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1128) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] 
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1056) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] 
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:566) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] 
... 24 common frames omitted 

Caused by: java.lang.IllegalArgumentException: Not a managed type: class org.elevenfifty.shopping.beans.ShoppingList 
at org.hibernate.jpa.internal.metamodel.MetamodelImpl.managedType(MetamodelImpl.java:210) ~[hibernate-entitymanager-5.0.11.Final.jar:5.0.11.Final] 
at org.springframework.data.jpa.repository.support.JpaMetamodelEntityInformation.<init>(JpaMetamodelEntityInformation.java:70) ~[spring-data-jpa-1.10.3.RELEASE.jar:na] 
at org.springframework.data.jpa.repository.support.JpaEntityInformationSupport.getEntityInformation(JpaEntityInformationSupport.java:67) ~[spring-data-jpa-1.10.3.RELEASE.jar:na] 
at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getEntityInformation(JpaRepositoryFactory.java:152) ~[spring-data-jpa-1.10.3.RELEASE.jar:na] 
at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getTargetRepository(JpaRepositoryFactory.java:99) ~[spring-data-jpa-1.10.3.RELEASE.jar:na] 
at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getTargetRepository(JpaRepositoryFactory.java:81) ~[spring-data-jpa-1.10.3.RELEASE.jar:na] 
at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:199) ~[spring-data-commons-1.12.3.RELEASE.jar:na] 
at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.initAndReturn(RepositoryFactoryBeanSupport.java:266) ~[spring-data-commons-1.12.3.RELEASE.jar:na] 
at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:252) ~[spring-data-commons-1.12.3.RELEASE.jar:na] 
at org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.afterPropertiesSet(JpaRepositoryFactoryBean.java:92) ~[spring-data-jpa-1.10.3.RELEASE.jar:na] 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1642) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] 
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1579) ~[spring-beans-4.3.3.RELEASE.jar:4.3.3.RELEASE] 
... 34 common frames omitted

看來，我的問題是在我的ShoppingListController，ShoppingListRepository，和我的ShoppingList豆地方。我會將代碼發佈到下面的代碼中。

ShoppingList豆：

package org.packagename.shopping.beans; 

import javax.persistence.GeneratedValue; 
import javax.persistence.GenerationType; 
import javax.persistence.Id; 

import org.packagename.shopping.DateTimeOffset; 

public class ShoppingList { 
    //adding in variables per the TDD 
    @Id 
    @GeneratedValue(strategy = GenerationType.AUTO) 
    private int id; 

    private int userId; 
    private String name; 
    private String color; 
    //created custom class to create a DateTimeOffset since it is a SQL only type of variable 
    private DateTimeOffset createdUtc; 
    private DateTimeOffset modifiedUtc; 

    //getters setters and hash coding and equals for variables 
    public int getId() { 
     return id; 
    } 

    public void setId(int id) { 
     this.id = id; 
    } 

    public int getUserId() { 
     return userId; 
    } 

    public void setUserId(int userId) { 
     this.userId = userId; 
    } 

    public String getName() { 
     return name; 
    } 

    public void setName(String name) { 
     this.name = name; 
    } 

    public String getColor() { 
     return color; 
    } 

    public void setColor(String color) { 
     this.color = color; 
    } 

    public DateTimeOffset getCreatedUtc() { 
     return createdUtc; 
    } 

    public void setCreatedUtc(DateTimeOffset createdUtc) { 
     this.createdUtc = createdUtc; 
    } 

    public DateTimeOffset getModifiedUtc() { 
     return modifiedUtc; 
    } 

    public void setModifiedUtc(DateTimeOffset modifiedUtc) { 
     this.modifiedUtc = modifiedUtc; 
    } 

    @Override 
    public int hashCode() { 
     final int prime = 31; 
     int result = 1; 
     result = prime * result + ((color == null) ? 0 : color.hashCode()); 
     result = prime * result + ((createdUtc == null) ? 0 : createdUtc.hashCode()); 
     result = prime * result + id; 
     result = prime * result + ((modifiedUtc == null) ? 0 : modifiedUtc.hashCode()); 
     result = prime * result + ((name == null) ? 0 : name.hashCode()); 
     result = prime * result + userId; 
     return result; 
    } 

    @Override 
    public boolean equals(Object obj) { 
     if (this == obj) 
      return true; 
     if (obj == null) 
      return false; 
     if (getClass() != obj.getClass()) 
      return false; 
     ShoppingList other = (ShoppingList) obj; 
     if (color == null) { 
      if (other.color != null) 
       return false; 
     } else if (!color.equals(other.color)) 
      return false; 
     if (createdUtc == null) { 
      if (other.createdUtc != null) 
       return false; 
     } else if (!createdUtc.equals(other.createdUtc)) 
      return false; 
     if (id != other.id) 
      return false; 
     if (modifiedUtc == null) { 
      if (other.modifiedUtc != null) 
       return false; 
     } else if (!modifiedUtc.equals(other.modifiedUtc)) 
      return false; 
     if (name == null) { 
      if (other.name != null) 
       return false; 
     } else if (!name.equals(other.name)) 
      return false; 
     if (userId != other.userId) 
      return false; 
     return true; 
    } 

}

ShoppingListController：

package org.packagename.shopping.controller; 

import org.elevenfifty.shopping.repository.ShoppingListRepository; 
import org.springframework.beans.factory.annotation.Autowired; 
import org.springframework.stereotype.Controller; 
import org.springframework.ui.Model; 
import org.springframework.web.bind.annotation.GetMapping; 

@Controller 
public class ShoppingListController { 

    @Autowired 
    private ShoppingListRepository listRepo; 

    @GetMapping("/ShoppingList") 
    public String ShoppingList(Model model){ 
     model.addAttribute("Shopping List", listRepo.findAll()); 
     return "Shopping_List"; 
    } 
}

ShoppingListRepository：

package org.packagename.shopping.controller; 

import org.packagenameenter code here.shopping.repository.ShoppingListRepository; 
import org.springframework.beans.factory.annotation.Autowired; 
import org.springframework.stereotype.Controller; 
import org.springframework.ui.Model; 
import org.springframework.web.bind.annotation.GetMapping; 

@Controller 
public class ShoppingListController { 

    @Autowired 
    private ShoppingListRepository listRepo; 

    @GetMapping("/ShoppingList") 
    public String ShoppingList(Model model){ 
     model.addAttribute("Shopping List", listRepo.findAll()); 
     return "Shopping_List"; 
    } 
}

來源

2016-11-30 photogcoder

+0

ShoppingList應該有一個Entity註解。 – Venki

+0

您發佈控制器兩次並錯過存儲庫 – Vampire

+0

請修復您的問題以使其更容易回答。 – Sethmr

回答

0

的錯誤意味着ShoppingList沒有出現在你的依賴注入容器。您需要在應用程序上下文中定義您的ShoppingList bean。

來源

2016-11-30 17:03:09 hhafeez

1

您的問題寫在你的輸出：

java.lang.IllegalArgumentException: Not a managed type: class org.elevenfifty.shopping.beans.ShoppingList

你ShoppingList類應該有一個註釋@Component被識別爲豆。否則，Spring並不認爲它是Bean，因此告訴你如此。

來源

2016-11-30 17:04:30

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