CODEWITHSUNDEEP
javaspringspring-boot
kaun jovi
kaun jovi

Reputation: 605

List all my beans loaded by SpringApplication.run

I am trying to enlist all the beans written by me when I boot up the SpringApplication.

Getting all the beans listed is done. This code does it. 

String[] beanNames = appContext.getBeanDefinitionNames();

Arrays.sort(beanNames);
for (String beanName : beanNames) {
        System.out.println(beanName);
}

I tried using a basic filter to look for my stuff. 

String[] beanNames = appContext.getBeanDefinitionNames();

Arrays.sort(beanNames);
for (String beanName : beanNames) {
    if (beanName.matches("(.*)Controller"))
        System.out.println(beanName);
}

But that does not work because when the classes are loaded it is really the bean name that is loaded and not the exact name of the classes. So if I wrote a my.personal.package.structure.MyController it would most probably show up as myController. The package structure information is lost rendering this technique, not quite effective.

Has anyone tried some other way that worked. I expect this to be very handy for a developer for debugging.

Upvotes: 2

Views: 2525

Answers (1)

Pau
Pau

Reputation: 16086

Using ConfigurableApplicationContext you can get all bean types. For example:

@Autowired
ConfigurableApplicationContext context;
.....
ConfigurableListableBeanFactory beansFactory = context.getBeanFactory();
String[] beansNames =  beansFactory.getBeanDefinitionNames();
Set<String> beansType = new HashSet<>();

for(String beanName : beansNames){
    if (beanName.matches("(.*)Controller")){
       beansType.add(beansFactory.getType(beanName).toString());
    }
}

Other easier option to show all the beans is In the case you are using spring-web You could use Spring boot actuator. Add the next dependency in your pom.xml and go to the /bean endpoint to show all beans, and it will put the name of the bean and the class.

Upvotes: 4

Related Questions