package name: com.sample
SpringMain.java
@SpringBootApplication
@ComponentScan
public class SpringMain implements CommandLineRunner
{
@Autowired
SampleClass sampleClass;
public static void main(String[] args) {
SpringApplication.run(SpringMain.class, args);
}
@Override
public void run(String... args) throws Exception
{
sampleClass.callThread();
}
}
pacakge name: com.sample.infra
SampleClass.java
@Component
public class SampleClass
{
@Autowired
ThreadSample threadSample;
public void callThread()
{
System.out.println("Inside SampleClass");
threadSample.start();
}
}
pacakage name: com.sample.dao
ThreadSample.java
@Component
public class ThreadSample extends Thread
{
@Autowired
JdbcTemplate jdbcTemplate;
public void run()
{
init();
}
public String init()
{
System.out.println("Inside ThreadSample");
SimpleJdbcCall jdbcCall = new SimpleJdbcCall(jdbcTemplate).withProcedureName("sp_procedureName");
Map<String, Object> initiatorMapData = jdbcCall.execute();
JSONArray initiatorJSONArray = JSONArray.fromObject(initiatorMapData.get("#result-set-1"));
System.out.println("GetInitiators JSONArray: "+initiatorJSONArray);
return initiatorJSONArray.toString();
}
}
应用程序属性
#DB Credentials
spring.datasource.url=jdbc:jtds:sqlserver://1.12.13.14
spring.datasource.username=uname
spring.datasource.password=pwd
pom.xml
<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>springBoot</groupId>
<artifactId>springBoot</artifactId>
<version>0.0.1-SNAPSHOT</version>
<properties>
<java.version>1.8</java.version>
</properties>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.10.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<artifactId>tomcat-annotations-api</artifactId>
<groupId>org.apache.tomcat</groupId>
</exclusion>
<exclusion>
<artifactId>tomcat-embed-core</artifactId>
<groupId>org.apache.tomcat.embed</groupId>
</exclusion>
<exclusion>
<artifactId>tomcat-embed-el</artifactId>
<groupId>org.apache.tomcat.embed</groupId>
</exclusion>
<exclusion>
<artifactId>tomcat-embed-websocket</artifactId>
<groupId>org.apache.tomcat.embed</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>net.sourceforge.jtds</groupId>
<artifactId>jtds</artifactId>
<version>1.3.1</version>
</dependency>
<dependency>
<groupId>net.sf.json-lib</groupId>
<artifactId>json-lib</artifactId>
<version>2.4</version>
<classifier>jdk15</classifier>
</dependency>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
现在，当我将所有文件放在一个包下时，它工作正常。但是当我根据功能分配时就会发生错误。我该如何解决这个问题。
按照下面的建议添加基础包后，我收到了错误
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v1.5.10.RELEASE)
2018-04-25 11:37:33.615 INFO 11552 --- [ main] com.sample.SpringMain : Starting SpringMain on Computer with PID 11552 (D:\SpringExample\springBoot\target\classes started by User in D:\SpringExample\springBoot)
2018-04-25 11:37:33.617 INFO 11552 --- [ main] com.sample.SpringMain : No active profile set, falling back to default profiles: default
2018-04-25 11:37:33.655 INFO 11552 --- [ main] s.c.a.AnnotationConfigApplicationContext : Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext@2f490758: startup date [Wed Apr 25 11:37:33 IST 2018]; root of context hierarchy
2018-04-25 11:37:34.370 WARN 11552 --- [ main] o.h.v.m.ParameterMessageInterpolator : HV000184: ParameterMessageInterpolator has been chosen, EL interpolation will not be supported
2018-04-25 11:37:34.559 WARN 11552 --- [ main] s.c.a.AnnotationConfigApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'asynchronousService': Unsatisfied dependency expressed through field 'taskExecutor'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'org.springframework.core.task.TaskExecutor' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
2018-04-25 11:37:34.564 INFO 11552 --- [ main] utoConfigurationReportLoggingInitializer :
Error starting ApplicationContext. To display the auto-configuration report re-run your application with 'debug' enabled.
2018-04-25 11:37:34.626 ERROR 11552 --- [ main] o.s.b.d.LoggingFailureAnalysisReporter :
***************************
APPLICATION FAILED TO START
***************************
Description:
Field taskExecutor in com.sample.dao.AsynchronousService required a bean of type 'org.springframework.core.task.TaskExecutor' that could not be found.
Action:
Consider defining a bean of type 'org.springframework.core.task.TaskExecutor' in your configuration.
最佳答案
我今天遇到了类似的问题，我通过创建 DatabaseConfig 类解决了这个问题
@Configuration
public class DatabaseConfig {
@Bean
public DataSource dataSource(){
DriverManagerDataSource dataSource = new DriverManagerDataSource();
dataSource.setDriverClassName("com.mysql.jdbc.Driver");
dataSource.setUrl("jdbc:mysql://localhost:3306/myDB");
dataSource.setUsername( "root" );
dataSource.setPassword( "" );
return dataSource;
}
}
PS:我有一个 MySQL 数据库。您需要设置正确的驱动程序类和 url
关于java - 考虑在您的配置中定义类型为 'org.springframework.jdbc.core.JdbcTemplate' 的 bean，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/50014937/