Enterprise Distribution Micro Service Cloud Springcloud springboot MyBatis (18) springboot which beans were injected at startup

Add in the program entry:

@SpringBootApplicationpublic class Springbootfirstapplication {public    static void Main (string[] args) {        Springapplication.run (Springbootfirstapplication.class, args);    }    @Bean public    Commandlinerunner Commandlinerunner (ApplicationContext ctx) {        return args, {            SYSTEM.OUT.PRINTLN ("Let's inspect the beans provided by Spring Boot:");            string[] Beannames = Ctx.getbeandefinitionnames ();            Arrays.sort (beannames);            for (String beanname:beannames) {                System.out.println (beanname);}}        ;}    }

　　

Program output:

Let's inspect the beans provided by Spring Boot:basicerrorcontroller beannamehandlermapping beannameviewresolver charact Erencodingfilter Commandlinerunner conventionerrorviewresolver defaultservlethandlermapping defaultViewResolver Dispatcherservlet dispatcherservletregistration Duplicateserverpropertiesdetector Embeddedservletcontainercustomizerbeanpostprocessor Error Errorattributes Errorpagecustomizer Errorpageregistrarbeanpostprocessor .....

　　

When the program starts, Springboot automatically injects 40-50 beans.

Open annotations with @runwith () @SpringBootTest:

@RunWith (Springrunner.class) @SpringBootTest (webenvironment = SpringBootTest.WebEnvironment.RANDOM_PORT) public Class Hellocontrollerit {    @LocalServerPort    private int port;    Private URL base;    @Autowired    private testresttemplate template;    @Before public    void SetUp () throws Exception {        this.base = new URL ("http://localhost:" + port + "/");    }    @Test public    void Gethello () throws Exception {        responseentity<string> response = Template.getforentity (Base.tostring (),                string.class);        Assertthat (Response.getbody (), Equalto ("Greetings from Spring boot!");}    }

　　

Running it will first open the Sprigboot project, then test, test through

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Enterprise Distribution Micro Service Cloud Springcloud springboot MyBatis (18) springboot which beans were injected at startup