Web应用程序使用Spring找不到豆

Question

我使用的IntelliJ终极版+ Tomcat中，我试图做一个小型Web应用程序，但我遇到了这个错误，当我启动Tomcat服务器：

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'ticketServiceImpl': Unsatisfied dependency expressed through field 'repository'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.testing.repositories.TicketRepository' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} 

org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.testing.repositories.TicketRepository' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} 

这是我的代码：

控制器：

package com.testing.controllers; 

import org.springframework.stereotype.Controller; 
import org.springframework.web.bind.annotation.RequestMapping; 

@Controller 
public class IndexController { 

@RequestMapping 
public String showIndex(){ 

    return "index"; 

} 
} 

型号：

import javax.persistence.*; 
import java.io.Serializable; 

@Entity 
@Table(name="tickets") 
public class Ticket implements Serializable { 

@Id 
@GeneratedValue(strategy = GenerationType.IDENTITY) 
@Column(nullable = false) 
private Long id; 

@Column(nullable = false) 
private Long event_id; 

@Column(length = 50, nullable = false) 
private String type; 

@Column(nullable = false) 
private Long price; 

@Column(nullable = false) 
private Long ticketsleft; 

public Long getId() { 
    return id; 
} 

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

public Long getEvent_id() { 
    return event_id; 
} 

public void setEvent_id(Long event_id) { 
    this.event_id = event_id; 
} 

public String getType() { 
    return type; 
} 

public void setType(String type) { 
    this.type = type; 
} 

public Long getPrice() { 
    return price; 
} 

public void setPrice(Long price) { 
    this.price = price; 
} 

public Long getTicketsleft() { 
    return ticketsleft; 
} 

public void setTicketsleft(Long ticketsleft) { 
    this.ticketsleft = ticketsleft; 
} 
} 

库：

package com.testing.repositories; 

import com.testing.models.Ticket; 
import org.springframework.data.jpa.repository.JpaRepository; 

public interface TicketRepository extends JpaRepository<Ticket,Long> { 

} 

服务：

package com.testing.services; 


import com.testing.models.Ticket; 

public interface TicketService extends CrudService<Ticket>{ 

} 


////// 

import com.testing.models.Ticket; 
import com.testing.repositories.TicketRepository; 
import org.springframework.beans.factory.annotation.Autowired; 
import org.springframework.stereotype.Service; 

import java.util.List; 

@Service 
public class TicketServiceImpl implements TicketService { 

@Autowired 
private TicketRepository repository; 

@Override 
public Ticket save(Ticket entity) { 
    return this.repository.save(entity); 
} 

@Override 
public List<Ticket> getAll() { 
    return this.repository.findAll(); 
} 

@Override 
public Ticket getById(Long id) { 
    return this.repository.findOne(id); 
} 

@Override 
public void delete(Long id) { 
    this.repository.delete(id); 
} 
} 

我知道这是一个豆腐的问题，但我已经自动装配的一切，我不知道哪里出了问题可能是。这是我的第一个Web应用程序，我想这可能是一个愚蠢的事情。无论如何，这里是我的servlet.xml文件：

<?xml version="1.0" encoding="UTF-8"?> 
<beans xmlns="http://www.springframework.org/schema/beans" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xmlns:context="http://www.springframework.org/schema/context" 
xmlns:mvc="http://www.springframework.org/schema/mvc" 
    xmlns:jpa="http://www.springframework.org/schema/data/jpa" 
xsi:schemaLocation=" 
    http://www.springframework.org/schema/beans 
    http://www.springframework.org/schema/beans/spring-beans.xsd 
    http://www.springframework.org/schema/context 
    http://www.springframework.org/schema/context/spring-context.xsd 
    http://www.springframework.org/schema/mvc 
    http://www.springframework.org/schema/mvc/spring-mvc.xsd 
    http://www.springframework.org/schema/data/jpa 
    http://www.springframework.org/schema/data/jpa/spring-jpa.xsd"> 

<!-- Step 3: Add support for component scanning --> 
<context:component-scan base-package="com.testing" /> 
<jpa:repositories base-package="com.testing.repositories" /> 
<!-- Step 4: Add support for conversion, formatting and validation support --> 
<mvc:annotation-driven/> 


<!-- Step 5: Define Spring MVC view resolver --> 
<bean 

class="org.springframework.web.servlet.view.InternalResourceViewResolver"> 
    <property name="prefix" value="/WEB-INF/view/" /> 
    <property name="suffix" value=".jsp" /> 
</bean> 

</beans> 

我必须添加任何东西到我的servlet.xml文件？组件扫描似乎很好

后来编辑：添加了jpa，但现在我得到相同的错误和更多，有关entitymanagerfactory未找到的东西。

Answer 1

添加

<jpa:repositories base-package="com.testing.repositories" /> 

到jpa在beans标签

<beans 
... 
    xmlns:jpa="http://www.springframework.org/schema/data/jpa" 
... 
     http://www.springframework.org/schema/data/jpa 
     http://www.springframework.org/schema/data/jpa/spring-jpa.xsd 
...