在我的项目中使用Spring Boot 1.2.7版。计划使用Spring Data JPA并尝试设置通用连接池来为mysql JDBC设置数据源。
收到以下错误，无法设置数据源。
Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfiguration': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private javax.sql.DataSource org.springframework.boot.autoconfigure.orm.jpa.JpaBaseConfiguration.dataSource; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [javax.sql.DataSource] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1210)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:368)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1119)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1014)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:956)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:747)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:117)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:689)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:321)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:969)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:958)
at mymantri.MymantriApplication.main(MymantriApplication.java:13)
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private javax.sql.DataSource org.springframework.boot.autoconfigure.orm.jpa.JpaBaseConfiguration.dataSource; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [javax.sql.DataSource] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:561)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331)
... 25 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [javax.sql.DataSource] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. 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.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:533)
... 27 more
我的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>org.test</groupId>
<artifactId>test</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>test</name>
<description>Test</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.2.7.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<start-class>test.TestApplication</start-class>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jersey</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
</dependency>
<dependency>
<groupId>javax.inject</groupId>
<artifactId>javax.inject</artifactId>
</dependency>
<dependency>
<groupId>com.oracle</groupId>
<artifactId>ucp</artifactId>
<version>11.2.0.3</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpcore</artifactId>
<version>4.4</version>
</dependency>
<dependency>
<groupId>commons-lang</groupId>
<artifactId>commons-lang</artifactId>
<version>2.4</version>
</dependency>
<dependency>
<groupId>commons-collections</groupId>
<artifactId>commons-collections</artifactId>
</dependency>
<dependency>
<groupId>com.eaio.uuid</groupId>
<artifactId>uuid</artifactId>
<version>3.2</version>
</dependency>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-core-asl</artifactId>
<version>1.9.13</version>
</dependency>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
</dependency>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
</dependency>
<dependency>
<groupId>net.sf.json-lib</groupId>
<artifactId>json-lib</artifactId>
<version>2.4</version>
<classifier>jdk15</classifier>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-parent</artifactId>
<version>Angel.SR3</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
TestApplication.java，
@SpringBootApplication(exclude = { DataSourceAutoConfiguration.class, DataSourceTransactionManagerAutoConfiguration.class, VelocityAutoConfiguration.class })
public class TestApplication {
public static void main(String[] args) {
SpringApplication.run(TestApplication.class, args);
}
}
application-dev.properties，
application.datasource.driverClassName=com.mysql.jdbc.jdbc2.optional.MysqlDataSource
application.datasource.url=jdbc:mysql://localhost:3306/mymantri
application.datasource.username=root
application.datasource.password=root
application.datasource.initialSize=5
application.datasource.maxPoolSize=5
application.datasource.minPoolSize=5
hibernate.dialect=org.hibernate.dialect.MySQL5Dialect
spring.jpa.properties.hibernate.dialect= org.hibernate.dialect.MySQL5Dialect
DataSource类，
@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(entityManagerFactoryRef = "testEntityManagerFactory", transactionManagerRef = "testTransactionManager", basePackages = { "com.mymantri.web.repository"})
public class ApplicationDataSource {
/** The Constant LOGGER. */
private static final Logger LOGGER = LoggerFactory
.getLogger(ApplicationDataSource.class);
/** The Constant TEST_SQL. */
private static final String TEST_SQL = "select 1 from dual";
/** The pooled data source. */
private PoolDataSource pooledDataSource;
/** The environment. */
private Environment environment;
/** The Constant CONNECTION_WAIT_TIMEOUT_SECS. */
private static final int CONNECTION_WAIT_TIMEOUT_SECS = 300;
/**
* Data source.
*
* @return the pool data source
*/
@Bean(name = "testDataSource")
@Primary
public PoolDataSource testDataSource() {
this.pooledDataSource = PoolDataSourceFactory.getPoolDataSource();
final String databaseDriver = environment
.getRequiredProperty("application.datasource.driverClassName");
final String databaseUrl = environment
.getRequiredProperty("application.datasource.url");
final String databaseUsername = environment
.getRequiredProperty("application.datasource.username");
final String databasePassword = environment
.getRequiredProperty("application.datasource.password");
final String initialSize = environment
.getRequiredProperty("application.datasource.initialSize");
final String maxPoolSize = environment
.getRequiredProperty("application.datasource.maxPoolSize");
final String minPoolSize = environment
.getRequiredProperty("application.datasource.minPoolSize");
try {
pooledDataSource.setConnectionFactoryClassName(databaseDriver);
pooledDataSource.setURL(databaseUrl);
pooledDataSource.setUser(databaseUsername);
pooledDataSource.setPassword(databasePassword);
pooledDataSource.setInitialPoolSize(Integer.parseInt(initialSize));
pooledDataSource.setMaxPoolSize(Integer.parseInt(maxPoolSize));
pooledDataSource.setMinPoolSize(Integer.parseInt(minPoolSize));
pooledDataSource.setSQLForValidateConnection(TEST_SQL);
pooledDataSource.setValidateConnectionOnBorrow(Boolean.TRUE);
pooledDataSource
.setConnectionWaitTimeout(CONNECTION_WAIT_TIMEOUT_SECS);
// pooledDataSource.setConnectionPoolName(poolName);
} catch (NumberFormatException e) {
LOGGER.error("Unable to parse passed numeric value", e);
} catch (SQLException e) {
LOGGER.error("exception creating data pool", e);
}
LOGGER.info("Setting up datasource for user:{} and databaseUrl:{}",
databaseUsername, databaseUrl);
return this.pooledDataSource;
}
@Bean(name = "testEntityManagerFactory")
public EntityManagerFactory entityManagerFactory() {
LocalContainerEntityManagerFactoryBean lef = new LocalContainerEntityManagerFactoryBean();
JpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
lef.setDataSource(myMantriDataSource());
lef.setJpaVendorAdapter(vendorAdapter);
lef.setPackagesToScan("com.mymantri.web.domain");
lef.setJpaProperties(additionalProperties());
lef.setPersistenceUnitName("myMantriPersistenceUnit");
lef.afterPropertiesSet();
return lef.getObject();
}
@Bean(name = "testTransactionManager")
public PlatformTransactionManager transactionManager() {
JpaTransactionManager transactionManager = new JpaTransactionManager();
transactionManager.setEntityManagerFactory(entityManagerFactory());
return transactionManager;
}
Properties additionalProperties() {
Properties properties = new Properties();
properties.setProperty("hibernate.dialect",
"org.hibernate.dialect.MySQL5Dialect");
properties.setProperty("hibernate.enable_lazy_load_no_trans",
"true");
properties.setProperty("hibernate.show_sql","true");
return properties;
}
/**
* Sets the environment.
*
* @param environment
* the new environment
*/
@Autowired
public void setEnvironment(Environment environment) {
this.environment = environment;
}
}
不确定，此配置有什么问题。我错过了SpringBootConfig配置中的任何内容。
答案 0 :(得分：0)
尝试更改数据源注册方法签名：
@Bean
public DataSource dataSource() {
environment和pooledDataSource。删除这些类变量并在方法中本地创建它们+通过@Bean注释将它们传递给Spring IoC容器。
我建议至少以这种方式更改配置类：
@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(entityManagerFactoryRef = "testEntityManagerFactory", transactionManagerRef = "testTransactionManager", basePackages = { "com.mymantri.web.repository"})
public class ApplicationDataSource {
/** The Constant LOGGER. */
private static final Logger LOGGER = LoggerFactory
.getLogger(ApplicationDataSource.class);
/** The Constant TEST_SQL. */
private static final String TEST_SQL = "select 1 from dual";
/** The Constant CONNECTION_WAIT_TIMEOUT_SECS. */
private static final int CONNECTION_WAIT_TIMEOUT_SECS = 300;
/**
* Data source.
*
* @return the pool data source
*/
@Bean
public DataSource dataSource(Environment environment) {
PoolDataSource pooledDataSource = PoolDataSourceFactory.getPoolDataSource();
final String databaseDriver = environment
.getRequiredProperty("application.datasource.driverClassName");
final String databaseUrl = environment
.getRequiredProperty("application.datasource.url");
final String databaseUsername = environment
.getRequiredProperty("application.datasource.username");
final String databasePassword = environment
.getRequiredProperty("application.datasource.password");
final String initialSize = environment
.getRequiredProperty("application.datasource.initialSize");
final String maxPoolSize = environment
.getRequiredProperty("application.datasource.maxPoolSize");
final String minPoolSize = environment
.getRequiredProperty("application.datasource.minPoolSize");
try {
pooledDataSource.setConnectionFactoryClassName(databaseDriver);
pooledDataSource.setURL(databaseUrl);
pooledDataSource.setUser(databaseUsername);
pooledDataSource.setPassword(databasePassword);
pooledDataSource.setInitialPoolSize(Integer.parseInt(initialSize));
pooledDataSource.setMaxPoolSize(Integer.parseInt(maxPoolSize));
pooledDataSource.setMinPoolSize(Integer.parseInt(minPoolSize));
pooledDataSource.setSQLForValidateConnection(TEST_SQL);
pooledDataSource.setValidateConnectionOnBorrow(Boolean.TRUE);
pooledDataSource
.setConnectionWaitTimeout(CONNECTION_WAIT_TIMEOUT_SECS);
// pooledDataSource.setConnectionPoolName(poolName);
} catch (NumberFormatException e) {
LOGGER.error("Unable to parse passed numeric value", e);
} catch (SQLException e) {
LOGGER.error("exception creating data pool", e);
}
LOGGER.info("Setting up datasource for user:{} and databaseUrl:{}",
databaseUsername, databaseUrl);
return pooledDataSource;
}
@Bean
public EntityManagerFactory entityManagerFactory() {
LocalContainerEntityManagerFactoryBean lef = new LocalContainerEntityManagerFactoryBean();
JpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
lef.setDataSource(myMantriDataSource());
lef.setJpaVendorAdapter(vendorAdapter);
lef.setPackagesToScan("com.mymantri.web.domain");
lef.setJpaProperties(additionalProperties());
lef.setPersistenceUnitName("myMantriPersistenceUnit");
lef.afterPropertiesSet();
return lef.getObject();
}
@Bean
public PlatformTransactionManager transactionManager() {
JpaTransactionManager transactionManager = new JpaTransactionManager();
transactionManager.setEntityManagerFactory(entityManagerFactory());
return transactionManager;
}
Properties additionalProperties() {
Properties properties = new Properties();
properties.setProperty("hibernate.dialect",
"org.hibernate.dialect.MySQL5Dialect");
properties.setProperty("hibernate.enable_lazy_load_no_trans",
"true");
properties.setProperty("hibernate.show_sql","true");
return properties;
}
}
答案 1 :(得分：0)
将应用程序移动到com.XXXXXX.web包。
com.XXXXXX.web.domain - 适用于域类 com.XXXXXX.web.repository - 用于存储库类
默认注释扫描基于Application类包名称进行。