Spring Boot CRUD应用程序-找不到Bean错误

Question

I am developing a simple CRUD application with spring-boot.

I have most of the project completed, although I get this error when I try to run the project.

Description:

Field userDBOP in com.application.crud.GreetingController required a bean of type 'com.application.crud.myoperation.JdbcUserDAO' that could not be found.

Action:

Consider defining a bean of type 'com.application.crud.myoperation.JdbcUserDAO' in your configuration.

In IntelliJ when I hover over the line that causes the error, the following message shows up

"Could not autowire. No beans of 'JdbcUserDAO' type found.

Even though I have in my 'Beans.xml' file (located below the 'src' directory:

<bean id="customerDAO" class="com.application.crud.myoperation.JdbcUserDAO">
    <property name="dataSource" ref="dataSource" />
</bean>

Can anyone tell me how to fix this error?

Answer 1

This seems to be a problem with configuring a Spring Boot Application with an existing Spring Context . There is a section in the Spring documentation about this.

By default, you need to specify the location of your application context using the @ImportResource annotation. An example would be:

@SpringBootApplication
@ImportResource("applicationContext.xml")
public class ExampleApplication {

    public static void main(String[] args) throws Exception {
        SpringApplication.run(ExampleApplication.class, args);
    }

}

Note that if the file is located elsewhere in the classpath, then you need to reference it properly for spring to pick it up (eg @ImportResource({"classpath*:applicationContext.xml"}) )