Java 如何使用注释bean和ComponentScan正确地创建bean-Spring?
主要内容: 测试等级:Java 如何使用注释bean和ComponentScan正确地创建bean-Spring?,java,spring,spring-boot,Java,Spring,Spring Boot,主要内容: 测试等级: @SpringBootApplication @ComponentScan(basePackageClasses = Application.class) public class Application { public static void main(String[] args) { SpringApplication.run(Application.class, args); } } 当我尝试自动连线时,我得到了一个例外: public c
@SpringBootApplication
@ComponentScan(basePackageClasses = Application.class)
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
当我尝试自动连线时,我得到了一个例外:
public class Test {
@Bean
public Test test(){
return new Test();
}
}
有件事我做错了,但我找不出来。您可以创建一个新配置,比如说
SpringConfiguration
***************************
APPLICATION FAILED TO START
***************************
Description:
Field test in TestWithAutowire required a bean of type 'Test' that could not be found.
Action:
Consider defining a bean of type 'rcms.backend.exception.Test' in your configuration.
Process finished with exit code 1
在您的应用程序
类中,您可以添加@ComponentScan
注释以及希望Spring扫描类的基本包
package my.pkg.config;
@Configuration
public class SpringConfiguration {
@Bean
public Test test(){
return new Test();
}
}
现在,您可以在任何弹簧组件中自动连线测试。比如说,
@SpringBootApplication
@ComponentScan(basePackageClasses = {"my.pkg.config", "my.pkg.example"})
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
package my.pkg.example;
@Component
public class TestExample {
@Autowired
private Test tst;
}