Can one module read another module's bean?

Question

I have two SpringBoot modules. commons and web.

In commons module, I define a bean:

And I can get this bean In the commons test

But unfortunately, I can not get the bean from anther module.

Am I mistake something? I want to get the bean which defined in the commons module from my web module.

this is my ModulesApplication.java

package com.github.fish56.modules;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class ModulesApplication {
    public static void main(String[] args) {
        SpringApplication.run(ModulesApplication.class, args);
    }
}

ModulesApplicatonTest.java

package com.github.fish56.modules;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.test.context.junit4.SpringRunner;

import static org.junit.Assert.*;

@RunWith(SpringRunner.class)
@SpringBootApplication
public class ModulesApplicationTest {
    @Test
    public void isEnvOk(){}
}

Update： it works

Could you please add ModulesApplication class code? – Jonathan JOhx May 07 '19 at 02:21 — Jonathan JOhx, May 07 '19 at 02:21
@JonathanJohx yes, I add some additional. – Shuai Li May 07 '19 at 03:27 — Shuai Li, May 07 '19 at 03:27

score 0 · Answer 1 · answered May 07 '19 at 05:01

You won't have access to beans defined in one Spring application from another. This is because each Spring application manages its beans separately and has an independent ApplicationContext (the interface that you use to get beans in your application).

score 0 · Accepted Answer · answered May 07 '19 at 05:32

0

Use SpringBootTest annotation:

@SpringBootTest(
  classes = {CommonsApplication.class, ModulesApplication.class})
@RunWith(SpringRunner.class)
public class ModulesApplicationTest {
    @Autowired
    private YmlConfig ymlConfig;

    @Test
    public void isEnvOk(){}
}

Also, your YmlConfigTest should extend ModulesApplicationTest class.

answered May 07 '19 at 05:32

@bitfishxyz Can you post your project on Github? – May 07 '19 at 14:40
@bitfishxyz You can accept my answer if it helped you. – May 07 '19 at 15:04

score 0 · Answer 3 · answered May 07 '19 at 11:46

0

In order to scan @Configuration bean, you need to specify base packages to @SpringBootApplication then add the following line and it will work.

@SpringBootApplication(scanBasePackages = {"com.github.fish56.modules.commons.config", 
                                           "com.github.fish56.modules"})

answered May 07 '19 at 11:46

Jonathan JOhx

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Hi, did you add this for ModulesApplication and ModulesApplicationTest as well? – Jonathan JOhx May 07 '19 at 14:10

Can one module read another module's bean?

Update： it works

3 Answers3