8000 add registrar · JavaCourse00/JavaCourseCodes@e84d39f · GitHub
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add registrar
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7 files changed

+191
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‎04fx/demo/src/main/java/A.java‎

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/**
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* Description for this class.
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*
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* @Author : kimmking(kimmking@apache.org)
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* @create 2022/12/16 10:55
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*/
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public class A {
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}

‎04fx/demo/src/main/java/io/kimmking/javacourse/demo/ConsConfig.java‎

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package io.kimmking.javacourse.demo;
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import lombok.AllArgsConstructor;
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import lombok.Data;
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/**
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* Description for this class.
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*
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* @Author : kimmking(kimmking@apache.org)
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* @create 2022/11/29 16:05
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*/
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@Data
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public class ConsConfig {
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private String demoName;
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private String demoDesc;
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}

‎04fx/demo/src/main/java/io/kimmking/javacourse/demo/ConsConfigAutoConfiguration.java‎

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package io.kimmking.javacourse.demo;
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import org.springframework.beans.factory.config.ConstructorArgumentValues;
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import org.springframework.beans.factory.support.AbstractBeanDefinition;
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import org.springframework.beans.factory.support.BeanDefinitionRegistry;
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import org.springframework.beans.factory.support.RootBeanDefinition;
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import org.springframework.context.EnvironmentAware;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.context.annotation.Import;
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import org.springframework.context.annotation.ImportBeanDefinitionRegistrar;
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import org.springframework.core.env.Environment;
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import org.springframework.core.type.AnnotationMetadata;
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/**
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* Description for this class.
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*
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* @Author : kimmking(kimmking@apache.org)
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* @create 2022/12/22 16:43
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*/
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@Configuration
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//@EnableConfigurationProperties(ConsConfigs.class)
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@Import(ConsConfigAutoConfiguration.ConsRegistrar.class)
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public class ConsConfigAutoConfiguration {
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public static class ConsRegistrar implements ImportBeanDefinitionRegistrar, EnvironmentAware {
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Environment environment;
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// ApplicationContext applicationContext;
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// @Override
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// public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
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// this.applicationContext = applicationContext;
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// }
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@Override
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public void setEnvironment(Environment environment) {
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this.environment = environment;
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}
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@Override
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public void registerBeanDefinitions(AnnotationMetadata importingClassMetadata, BeanDefinitionRegistry registry) {
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//ImportBeanDefinitionRegistrar.super.registerBeanDefinitions(importingClassMetadata, registry);
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RootBeanDefinition def = new RootBeanDefinition();
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def.setBeanClass(ConsConfig.class);
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registry.registerBeanDefinition("cons", def);
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RootBeanDefinition definition = new RootBeanDefinition();
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definition.setBeanClass(ConsConfigs.class);
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definition.setAutowireMode(AbstractBeanDefinition.AUTOWIRE_BY_TYPE);
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definition.setDependencyCheck(AbstractBeanDefinition.DEPENDENCY_CHECK_NONE);
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//ConstructorArgumentValues argumentValues = new ConstructorArgumentValues();
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//ConsConfig config= applicationContext.getBean(ConsConfig.class);
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// String name = ConsConfig.class.getCanonicalName();
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// boolean exist = registry.containsBeanDefinition(name);
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// if(exist) {
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// argumentValues.addGenericArgumentValue(registry.getBeanDefinition(name));
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// } else {
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// ConsConfig cf = new ConsConfig();
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// cf.setDemoName("defaultName1");
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// cf.setDemoDesc("defaultDesc1");
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// argumentValues.addGenericArgumentValue(cf);
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// }
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//definition.setConstructorArgumentValues(argumentValues);
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registry.registerBeanDefinition("conss", definition);
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}
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}
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}

‎04fx/demo/src/main/java/io/kimmking/javacourse/demo/ConsConfigs.java‎

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package io.kimmking.javacourse.demo;
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import lombok.AllArgsConstructor;
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import lombok.Data;
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import java.util.List;
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/**
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* Description for this class.
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*
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* @Author : kimmking(kimmking@apache.org)
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* @create 2022/12/22 16:47
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*/
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@Data
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@AllArgsConstructor
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public class ConsConfigs {
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private List<ConsConfig> config;
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}

‎04fx/demo/src/main/java/io/kimmking/javacourse/demo/DemoApplication.java‎

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package io.kimmking.javacourse.demo;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.boot.ApplicationArguments;
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import org.springframework.boot.ApplicationRunner;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
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import org.springframework.context.ApplicationContext;
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import org.springframework.context.EnvironmentAware;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.PropertySource;
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import org.springframework.core.env.Environment;
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import javax.annotation.Resource;
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@SpringBootApplication
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public class DemoApplication {
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public class DemoApplication implements EnvironmentAware, ApplicationRunner {
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Environment environment;
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@Resource(name="a1")
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DemoConfig a1;
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public static void main(String[] args) {
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SpringApplication.run(DemoApplication.class, args);
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}
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@Override
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public void setEnvironment(Environment environment) {
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this.environment = environment;
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}
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@Autowired
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ApplicationContext context;
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@Bean
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//@ConditionalOnMissingBean
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public ConsConfig defaultConsConfig() {
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ConsConfig cf = new ConsConfig();
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cf.setDemoName("defaultName");
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cf.setDemoDesc("defaultDesc");
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return cf;
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}
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@Override
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public void run(ApplicationArguments args) throws Exception {
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System.out.println(environment.getProperty("a"));
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System.out.println(a1.getDemoName());
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DemoConfig a4 = (DemoConfig) context.getBean("a4");
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System.out.println(a4.getDemoName());
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System.out.println(context.getBean(ConsConfigs.class));
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}
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@EnableDemoConfigBindings(prefix = "demo.config", type = DemoConfig.class)
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@PropertySource("application.properties")
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public static class TestDemoConfig {
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}
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@Bean("a4")
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@ConditionalOnClass(name="A")
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DemoConfig createA4() {
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DemoConfig config = new DemoConfig();
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config.setDemoName("a4");
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config.setDemoDesc("this is a4");
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return config;
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}
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}

‎04fx/demo/src/main/java/io/kimmking/javacourse/demo/DemoConfigBindingsRegistrar.java‎

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Collections.singleton(resolveSingleBeanName(properties, configClass, registry));
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Map<String, Map<String, Object>> 527D groupProperties = getGroupProperties(properties, beanNames);
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for (String beanName : beanNames) {
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System.out.println(" ==> registerDemoConfigBean:" + beanName);
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registerDemoConfigBean(beanName, configClass, registry, groupProperties.get(beanName));
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//registerDubboConfigBindingBeanPostProcessor(prefix, beanName, multiple, registry);
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}

‎04fx/demo/src/test/java/io/kimmking/javacourse/demo/DemoApplicationTests.java‎

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@Test
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void testDemoConfig() {
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AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext();
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context.register(TestConfig.class);
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context.register(DemoApplication.TestDemoConfig.class);
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context.refresh();
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System.out.println(Arrays.toString(context.getBeanNamesForType(DemoConfig.class)));
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assertEquals(3, context.getBeansOfType(DemoConfig.class).size());
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assertEquals("d3", demoConfig.getDemoName());
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assertEquals("demo3", demoConfig.getDemoDesc());
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}
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@EnableDemoConfigBindings(prefix = "demo.config", type = DemoConfig.class)
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@PropertySource("application.properties")
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private static class TestConfig {
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// context.refresh();
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// System.out.println(Arrays.toString(context.getBeanNamesForType(DemoConfig.class)));
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}
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// @EnableDemoConfigBindings(prefix = "demo.config", type = DemoConfig.class)
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// @PropertySource("application.properties")
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// private static class TestConfig {
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//
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// }
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}

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