I Spent much of my time with this! My bad! I am unable to solve the issue. This is my first spring Data JPA practice with spring MVC. While deploying the .ear file on tomcat I am getting the following error.
我花了很多时间在这上面!我的坏!我无法解决这个问题。这是我使用spring MVC的第一个spring数据JPA实践。在tomcat上部署.ear文件时，我得到了以下错误。
Updated Log
更新日志
Caused by: org.springframework.beans.factory.BeanCreationException: Could not au
towire field: com.demo.controller.customerRepository com.demo.controller.HomeCon
troller.repository; nested exception is org.springframework.beans.factory.NoSuch
BeanDefinitionException: No qualifying bean of type [com.demo.controller.custome
rRepository] found for dependency: expected at least 1 bean which qualifies as a
utowire candidate for this dependency. Dependency annotations: {@org.springframe
work.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanP
ostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.j
ava:561)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject
(InjectionMetadata.java:88)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanP
ostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java
:331)
... 68 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No q
ualifying bean of type [com.demo.controller.customerRepository] found for depend
ency: expected at least 1 bean which qualifies as autowire candidate for this de
pendency. Dependency annotations: {@org.springframework.beans.factory.annotation
.Autowired(required=true)}
at org.springframework.beans.factory.support.DefaultListableBeanFactory.
raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:1301)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.
doResolveDependency(DefaultListableBeanFactory.java:1047)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.
resolveDependency(DefaultListableBeanFactory.java:942)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanP
ostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.j
ava:533)
... 70 more
ERROR: org.springframework.web.servlet.DispatcherServlet - Context initializatio
n failed
org.springframework.beans.factory.BeanCreationException: Error creating bean wit
h name 'homeController': Injection of autowired dependencies failed; nested exce
ption is org.springframework.beans.factory.BeanCreationException: Could not auto
wire field: com.demo.controller.customerRepository com.demo.controller.HomeContr
oller.repository; nested exception is org.springframework.beans.factory.NoSuchBe
anDefinitionException: No qualifying bean of type [com.demo.controller.customerR
epository] found for dependency: expected at least 1 bean which qualifies as aut
owire candidate for this dependency. Dependency annotations: {@org.springframewo
rk.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanP
ostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java
:334)
at org.springframework.beans.factory.support.AbstractAutowireCapableBean
Factory.populateBean(AbstractAutowireCapableBeanFactory.java:1210)
at org.springframework.beans.factory.support.AbstractAutowireCapableBean
Factory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
at org.springframework.beans.factory.support.AbstractAutowireCapableBean
Factory.createBean(AbstractAutowireCapableBeanFactory.java:476)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getOb
ject(AbstractBeanFactory.java:303)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistr
y.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBe
an(AbstractBeanFactory.java:299)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean
(AbstractBeanFactory.java:194)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.
preInstantiateSingletons(DefaultListableBeanFactory.java:755)
at org.springframework.context.support.AbstractApplicationContext.finish
BeanFactoryInitialization(AbstractApplicationContext.java:757)
at org.springframework.context.support.AbstractApplicationContext.refres
h(AbstractApplicationContext.java:480)
at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshW
ebApplicationContext(FrameworkServlet.java:663)
at org.springframework.web.servlet.FrameworkServlet.createWebApplication
Context(FrameworkServlet.java:629)
at org.springframework.web.servlet.FrameworkServlet.createWebApplication
Context(FrameworkServlet.java:677)
at org.springframework.web.servlet.FrameworkServlet.initWebApplicationCo
ntext(FrameworkServlet.java:548)
at org.springframework.web.servlet.FrameworkServlet.initServletBean(Fram
eworkServlet.java:489)
at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.
java:136)
at javax.servlet.GenericServlet.init(GenericServlet.java:158)
at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.
java:1231)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.
java:1144)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:10
31)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContex
t.java:4914)
at org.apache.catalina.core.StandardContext.startInternal(StandardContex
t.java:5201)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase
.java:725)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:70
1)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:945)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:466
)
at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1556)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.j
ava:300)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultM
BeanServerInterceptor.java:819)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801
)
at org.apache.catalina.manager.ManagerServlet.check(ManagerServlet.java:
1460)
at org.apache.catalina.manager.HTMLManagerServlet.upload(HTMLManagerServ
let.java:289)
at org.apache.catalina.manager.HTMLManagerServlet.doPost(HTMLManagerServ
let.java:210)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:291)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
at org.apache.catalina.filters.CsrfPreventionFilter.doFilter(CsrfPrevent
ionFilter.java:213)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52
)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
at org.apache.catalina.filters.SetCharacterEncodingFilter.doFilter(SetCh
aracterEncodingFilter.java:108)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
alve.java:219)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
alve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(Authentica
torBase.java:614)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
ava:142)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
ava:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAcce
ssLogValve.java:616)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
ve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav
a:518)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp
11Processor.java:1091)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(
AbstractProtocol.java:673)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpo
int.java:2503)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoin
t.java:2492)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.
java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor
.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskTh
read.java:61)
at java.lang.Thread.run(Thread.java:744)
Caused by: org.springframework.beans.factory.BeanCreationException: Could not au
towire field: com.demo.controller.customerRepository com.demo.controller.HomeCon
troller.repository; nested exception is org.springframework.beans.factory.NoSuch
BeanDefinitionException: No qualifying bean of type [com.demo.controller.custome
rRepository] found for dependency: expected at least 1 bean which qualifies as a
utowire candidate for this dependency. Dependency annotations: {@org.springframe
work.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanP
ostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.j
ava:561)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject
(InjectionMetadata.java:88)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanP
ostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java
:331)
... 68 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No q
ualifying bean of type [com.demo.controller.customerRepository] found for depend
ency: expected at least 1 bean which qualifies as autowire candidate for this de
pendency. Dependency annotations: {@org.springframework.beans.factory.annotation
.Autowired(required=true)}
at org.springframework.beans.factory.support.DefaultListableBeanFactory.
raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:1301)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.
doResolveDependency(DefaultListableBeanFactory.java:1047)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.
resolveDependency(DefaultListableBeanFactory.java:942)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanP
ostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.j
ava:533)
... 70 more
27-Sep-2015 23:58:18.330 INFO [http-apr-8080-exec-47] org.apache.catalina.startu
p.HostConfig.deployWAR Deployment of web application archive D:\ApacheTomcat\apa
che-tomcat-8.0.26\webapps\springTest.war has finished in 6,377 ms
I have created a spring MVC project and trying the Spring Data JPA example. My project structure looks like attached screen shot.
我已经创建了一个spring MVC项目，并尝试了spring数据JPA示例。我的项目结构看起来像附加的屏幕截图。
pom.xml
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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.cignex</groupId>
<artifactId>demo</artifactId>
<name>springTest</name>
<packaging>war</packaging>
<version>1.0.0-BUILD-SNAPSHOT</version>
<properties>
<java-version>1.6</java-version>
<org.springframework-version>3.1.1.RELEASE</org.springframework-version>
<org.aspectj-version>1.6.10</org.aspectj-version>
<org.slf4j-version>1.6.6</org.slf4j-version>
</properties>
<dependencies>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<!-- <version>${org.springframework-version}</version> -->
<exclusions>
<!-- Exclude Commons Logging in favor of SLF4j -->
<exclusion>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<!-- <version>${org.springframework-version}</version> -->
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<!-- <version>4.1.4.RELEASE</version> -->
</dependency>
<!-- Database (H2) -->
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
</dependency>
<!-- DataSource (HikariCP) -->
<dependency>
<groupId>com.zaxxer</groupId>
<artifactId>HikariCP</artifactId>
</dependency>
<!-- JPA Provider (Hibernate) -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
</dependency>
<!-- Spring Data JPA -->
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-jpa</artifactId>
</dependency>
<!-- AspectJ -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjrt</artifactId>
<!-- <version>${org.aspectj-version}</version> -->
</dependency>
<!-- Logging -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<!-- <version>${org.slf4j-version}</version> -->
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
<!-- <version>${org.slf4j-version}</version> -->
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<!-- <version>${org.slf4j-version}</version> -->
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<!-- <version>1.2.15</version> -->
<exclusions>
<exclusion>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
</exclusion>
<exclusion>
<groupId>javax.jms</groupId>
<artifactId>jms</artifactId>
</exclusion>
<exclusion>
<groupId>com.sun.jdmk</groupId>
<artifactId>jmxtools</artifactId>
</exclusion>
<exclusion>
<groupId>com.sun.jmx</groupId>
<artifactId>jmxri</artifactId>
</exclusion>
</exclusions>
<scope>runtime</scope>
</dependency>
<!-- @Inject -->
<dependency>
<groupId>javax.inject</groupId>
<artifactId>javax.inject</artifactId>
<!-- <version>1</version> -->
</dependency>
<!-- Servlet -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<!-- <version>1.2</version> -->
</dependency>
<!-- Test -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<!-- <version>4.7</version> -->
<scope>test</scope>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>io.spring.platform</groupId>
<artifactId>platform-bom</artifactId>
<version>1.1.2.RELEASE</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<artifactId>maven-eclipse-plugin</artifactId>
<version>2.9</version>
<configuration>
<additionalProjectnatures>
<projectnature>org.springframework.ide.eclipse.core.springnature</projectnature>
</additionalProjectnatures>
<additionalBuildcommands>
<buildcommand>org.springframework.ide.eclipse.core.springbuilder</buildcommand>
</additionalBuildcommands>
<downloadSources>true</downloadSources>
<downloadJavadocs>true</downloadJavadocs>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.5.1</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
<compilerArgument>-Xlint:all</compilerArgument>
<showWarnings>true</showWarnings>
<showDeprecation>true</showDeprecation>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.2.1</version>
<configuration>
<mainClass>org.test.int1.Main</mainClass>
</configuration>
</plugin>
</plugins>
</build>
</project>
Servlet-Context.xml
Servlet-Context.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:beans="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
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">
<!-- DispatcherServlet Context: defines this servlet's request-processing infrastructure -->
<!-- Enables the Spring MVC @Controller programming model -->
<annotation-driven />
<!-- Handles HTTP GET requests for /resources/** by efficiently serving up static resources in the ${webappRoot}/resources directory -->
<resources mapping="/resources/**" location="/resources/" />
<!-- Resolves views selected for rendering by @Controllers to .jsp resources in the /WEB-INF/views directory -->
<beans:bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<beans:property name="prefix" value="/WEB-INF/views/" />
<beans:property name="suffix" value=".jsp" />
</beans:bean>
<context:component-scan base-package="com.demo" />
</beans:beans>
Entity:
实体:
package com.demo.model;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
@Entity
public class Customer {
@Id
@GeneratedValue(strategy=GenerationType.AUTO)
private long id;
private String firstName;
private String lastName;
protected Customer() {}
public Customer(String firstName, String lastName) {
this.firstName = firstName;
this.lastName = lastName;
}
@Override
public String toString() {
return String.format(
"Customer[id=%d, firstName='%s', lastName='%s']",
id, firstName, lastName);
}
}
Controller:
控制器:
package com.demo.controller;
import com.demo.model.Customer;
import java.text.DateFormat;
import java.util.Date;
import java.util.Locale;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
/**
* Handles requests for the application home page.
*/
@Controller
public class HomeController {
@Autowired
customerRepository repository;
private static final Logger logger = LoggerFactory.getLogger(HomeController.class);
@RequestMapping(value = "/", method = RequestMethod.GET)
public String home(Locale locale, Model model) {
logger.info("Welcome home! The client locale is {}.", locale);
Date date = new Date();
DateFormat dateFormat = DateFormat.getDateTimeInstance(DateFormat.LONG, DateFormat.LONG, locale);
String formattedDate = dateFormat.format(date);
model.addAttribute("serverTime", formattedDate );
repository.save(new Customer("Jack", "Bauer"));
repository.save(new Customer("Chloe", "O'Brian"));
repository.save(new Customer("Kim", "Bauer"));
repository.save(new Customer("David", "Palmer"));
repository.save(new Customer("Michelle", "Dessler"));
for(Customer customer : repository.findAll())
{
System.out.println("Log Results :: "+customer.toString());
}
return "myhome";
}
}
Configuration:
配置:
package com.demo.config;
import java.util.Properties;
import javax.persistence.EntityManagerFactory;
import javax.sql.DataSource;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import com.zaxxer.hikari.HikariConfig;
import com.zaxxer.hikari.HikariDataSource;
@Configuration
@EnableJpaRepositories(entityManagerFactoryRef = "entityManagerFactory", value = "com.demo.controller")
@EnableTransactionManagement
public class PersistenceContext {
@Bean(destroyMethod = "close")
DataSource dataSource() {
HikariConfig dataSourceConfig = new HikariConfig();
dataSourceConfig.setDriverClassName("org.h2.Driver");
dataSourceConfig.setJdbcUrl("jdbc:h2:mem:datajpa");
dataSourceConfig.setUsername("sa");
dataSourceConfig.setPassword("");
return (DataSource) new HikariDataSource(dataSourceConfig);
}
@Bean
LocalContainerEntityManagerFactoryBean entityManagerFactory(DataSource dataSource) {
LocalContainerEntityManagerFactoryBean entityManagerFactoryBean = new LocalContainerEntityManagerFactoryBean();
entityManagerFactoryBean.setDataSource((javax.sql.DataSource) dataSource);
entityManagerFactoryBean.setJpaVendorAdapter(new HibernateJpaVendorAdapter());
entityManagerFactoryBean.setPackagesToScan("com.cignex.repo");
Properties jpaProperties = new Properties();
//Configures the used database dialect. This allows Hibernate to create SQL
//that is optimized for the used database.
jpaProperties.put("hibernate.dialect", "org.hibernate.dialect.H2Dialect");
//Specifies the action that is invoked to the database when the Hibernate
//SessionFactory is created or closed.
jpaProperties.put("hibernate.hbm2ddl.auto",
"create-drop"
);
//Configures the naming strategy that is used when Hibernate creates
//new database objects and schema elements
jpaProperties.put("hibernate.ejb.naming_strategy",
"org.hibernate.cfg.ImprovedNamingStrategy"
);
//If the value of this property is true, Hibernate writes all SQL
//statements to the console.
jpaProperties.put("hibernate.show_sql",
"true"
);
//If the value of this property is true, Hibernate will format the SQL
//that is written to the console.
jpaProperties.put("hibernate.format_sql",
"true"
);
entityManagerFactoryBean.setJpaProperties(jpaProperties);
return entityManagerFactoryBean;
}
@Bean
JpaTransactionManager transactionManager(EntityManagerFactory entityManagerFactory) {
JpaTransactionManager transactionManager = new JpaTransactionManager();
transactionManager.setEntityManagerFactory(entityManagerFactory);
return transactionManager;
}
}
customerRepository:
customerRepository:
package com.demo.controller;
import org.springframework.data.repository.CrudRepository;
import org.springframework.stereotype.Repository;
import com.demo.model.*;
@Repository
interface customerRepository extends CrudRepository<Customer, Long> {
}
Project Structure: 
项目结构:
Any suggestion where I made mistake and how to resolve the same.
任何关于我犯错误和如何解决问题的建议。
Also this is my first spring data practice project, If I made any mistakes in code OR configurations OR project structure, Please correct me with your valuable suggestions.
这也是我的第一个spring数据实践项目，如果我在代码或配置或项目结构上犯了错误，请给我一些宝贵的建议。
3 个解决方案
#1
1
You need to declare the customerRepository class as public. Since you haven't specified any modifier, we cannot subclass the repository if the implementation is in a different package.
您需要将customerRepository类声明为public。由于您没有指定任何修饰符，如果实现是在一个不同的包中，我们就不能对存储库进行子类化。
Spring creates an implementation for the repository at runtime. If spring creates the runtime implementations for repositories in some other package, then spring won't be able to subclass customerRepository. In that case, there won't be an implementation (and a spring bean of type customerRepository) and you won't be able to autowire customerRepository.
Spring在运行时为存储库创建一个实现。如果spring在其他包中为存储库创建运行时实现，那么spring将不能子类化customerRepository。在这种情况下，将不会有一个实现(和一个类型customerRepository的spring bean)，您将无法自动连接customerRepository。
#2
0
Annotate with @Repository for your customerRepository class as below. Then only it will be a eligible spring candidate which can be injected in other place using @Autowire
使用@Repository为您的customerRepository类添加注释，如下所示。然后，只有它将是一个合格的spring候选者，可以使用@Autowire在其他地方进行注入。
@Repository
interface customerRepository extends CrudRepository<Customer, Long> {
}
That's why you are getting the error No qualifying bean of type [com.demo.controller.customerRepository] found
这就是为什么您会得到错误的类型[com.demo.controller.customerRepository]。
#3
0
I had the same type of exception and happened across your question. I found the answer in the Spring Boot Reference. It goes over Spring Data JPA tests.
我在你的问题上也有同样的例外。我在Spring引导引用中找到了答案。它通过Spring数据JPA测试。
The way I got mine to work is by adding the annotation @DataJpaTest to your test.
我的工作方式是将@DataJpaTest添加到您的测试中。
I realize this question is quite old. I hope my answer helps someone.
我意识到这个问题相当古老。我希望我的回答能帮助别人。
#1
1
You need to declare the customerRepository class as public. Since you haven't specified any modifier, we cannot subclass the repository if the implementation is in a different package.
您需要将customerRepository类声明为public。由于您没有指定任何修饰符，如果实现是在一个不同的包中，我们就不能对存储库进行子类化。
Spring creates an implementation for the repository at runtime. If spring creates the runtime implementations for repositories in some other package, then spring won't be able to subclass customerRepository. In that case, there won't be an implementation (and a spring bean of type customerRepository) and you won't be able to autowire customerRepository.
Spring在运行时为存储库创建一个实现。如果spring在其他包中为存储库创建运行时实现，那么spring将不能子类化customerRepository。在这种情况下，将不会有一个实现(和一个类型customerRepository的spring bean)，您将无法自动连接customerRepository。
#2
0
Annotate with @Repository for your customerRepository class as below. Then only it will be a eligible spring candidate which can be injected in other place using @Autowire
使用@Repository为您的customerRepository类添加注释，如下所示。然后，只有它将是一个合格的spring候选者，可以使用@Autowire在其他地方进行注入。
@Repository
interface customerRepository extends CrudRepository<Customer, Long> {
}
That's why you are getting the error No qualifying bean of type [com.demo.controller.customerRepository] found
这就是为什么您会得到错误的类型[com.demo.controller.customerRepository]。
#3
0
I had the same type of exception and happened across your question. I found the answer in the Spring Boot Reference. It goes over Spring Data JPA tests.
我在你的问题上也有同样的例外。我在Spring引导引用中找到了答案。它通过Spring数据JPA测试。
The way I got mine to work is by adding the annotation @DataJpaTest to your test.
我的工作方式是将@DataJpaTest添加到您的测试中。
I realize this question is quite old. I hope my answer helps someone.
我意识到这个问题相当古老。我希望我的回答能帮助别人。