org.springframework.boot.autoconfigure cannot be resolved in eclipse - spring

Question

I imported the spring-boot-1.1.10.RELEASE.jar into my j2ee project.
But i can not found the class of autoconfigure.
Here is code:
import org.springframework.boot.autoconfigure;
import org.springframework.boot.SpringApplication;
import org.springframework.context.annotation.ComponentScan;
#ComponentScan
#EnableAutoConfiguration
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
The Compile error:
The import org.springframework.boot.autoconfigure cannot be resolved

Answer 1

I had the same problem and I tried above solutions. But I have found a different issue.
In latest springframework, this org.springframework.boot.autoconfigure.jdbc.DataSourceBuilder has been moved to
org.springframework.boot.jdbc.DataSourceBuilder. so you have to edit in import
And then you will notice that you have to use DataSourceBuilder.create(classLoader)
instead of new DataSourceBuilder(classLoader)

Answer 2

Go to your maven repository directory
For windows on below path
C:\Users\YourUser\.m2\repository\org\springframework\boot
Then delete spring-boot-autoconfigure folder.
Now go to eclipse and do maven update.

Answer 3

There is a copy/paste error - the code from the official documentation (https://spring.io/guides/gs/rest-service/) is:
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.SpringApplication;
import org.springframework.context.annotation.ComponentScan;
#ComponentScan
#EnableAutoConfiguration
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
The code in the question is missing ".EnableAutoConfiguration" in the first line.

Answer 4

In case anyone else has this issue, I was able to solve this by deleting the spring-boot-autoconfigure artifacts from my local Maven repository and updating my project in Eclipse (which re-downloads the artifacts).

Answer 5

if you are using eclise then Right button on project -> Maven -> Update Project

Answer 6

If you are using IntelliJ IDEA Right click on project -> Maven -> Reimport
Also, try "Generate source and update folder" below the reimport if above method doesn't work. No need to delete any spring or maven folder or files.