增加自动装配核心注解Import相关代码

.gitignore

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+HELP.md
+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/

pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>com.shockkid</groupId>
+    <artifactId>spring</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>shockkid-spring</name>
+    <description>shockkid-spring</description>
+    <properties>
+        <java.version>1.8</java.version>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+        <spring-boot.version>2.6.13</spring-boot.version>
+    </properties>
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-dependencies</artifactId>
+                <version>${spring-boot.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.8.1</version>
+                <configuration>
+                    <source>1.8</source>
+                    <target>1.8</target>
+                    <encoding>UTF-8</encoding>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+                <version>${spring-boot.version}</version>
+                <configuration>
+                    <mainClass>com.shockkid.spring.ShockkidSpringApplication</mainClass>
+                    <skip>true</skip>
+                </configuration>
+                <executions>
+                    <execution>
+                        <id>repackage</id>
+                        <goals>
+                            <goal>repackage</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

src/main/java/com/shockkid/spring/ShockkidSpringApplication.java

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+package com.shockkid.spring;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.ApplicationContext;
+
+@SpringBootApplication
+public class ShockkidSpringApplication {
+
+    public static void main(String[] args) {
+        ApplicationContext ac = SpringApplication.run(ShockkidSpringApplication.class, args);
+        String[] beanDefinitionNames = ac.getBeanDefinitionNames();
+        for (String beanName : beanDefinitionNames) {
+            System.out.println(beanName);
+        }
+    }
+
+}

src/main/java/com/shockkid/spring/ioc/CacheService.java

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+package com.shockkid.spring.ioc;
+
+/**
+ * @auther lisang
+ * @date 2024/6/24 22:39
+ **/
+public class CacheService {
+}

src/main/java/com/shockkid/spring/ioc/EnableLsaDefine.java

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+package com.shockkid.spring.ioc;
+
+import org.springframework.context.annotation.Import;
+
+import java.lang.annotation.*;
+
+/**
+ * @auther lisang
+ * @date 2024/6/24 21:52
+ **/
+@Target(ElementType.TYPE)
+@Retention(RetentionPolicy.RUNTIME)
+@Documented
+@Inherited
+//@Import(LsaDefineImportSelector.class)
+@Import(LsaImportBeanDefineRegister.class)
+public @interface EnableLsaDefine {
+}

src/main/java/com/shockkid/spring/ioc/LoggerService.java

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+package com.shockkid.spring.ioc;
+
+/**
+ * @auther lisang
+ * @date 2024/6/24 22:39
+ **/
+public class LoggerService {
+}

src/main/java/com/shockkid/spring/ioc/LsaDefineImportSelector.java

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+package com.shockkid.spring.ioc;
+
+import org.springframework.context.annotation.ImportSelector;
+import org.springframework.core.type.AnnotationMetadata;
+
+/**
+ * @auther lisang
+ * @date 2024/6/24 21:50
+ **/
+public class LsaDefineImportSelector implements ImportSelector {
+    /**
+     *
+     * @param importingClassMetadata
+     * @return
+     *  IoC要管理的Bean的路径数组
+     */
+    @Override
+    public String[] selectImports(AnnotationMetadata importingClassMetadata) {
+        // 添加对应的业务逻辑
+        return new String[]{LoggerService.class.getName(),CacheService.class.getName()};
+        //return new String[0];
+    }
+}

src/main/java/com/shockkid/spring/ioc/LsaImportBeanDefineRegister.java

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+package com.shockkid.spring.ioc;
+
+import org.springframework.beans.factory.support.BeanDefinitionRegistry;
+import org.springframework.beans.factory.support.RootBeanDefinition;
+import org.springframework.context.annotation.ImportBeanDefinitionRegistrar;
+import org.springframework.core.type.AnnotationMetadata;
+
+/**
+ * @auther lisang
+ * @date 2024/6/24 22:41
+ **/
+public class LsaImportBeanDefineRegister implements ImportBeanDefinitionRegistrar {
+    @Override
+    public void registerBeanDefinitions(AnnotationMetadata importingClassMetadata, BeanDefinitionRegistry registry) {
+        // 先将要管理的Bean封装为一个RootBeanDefinition
+        RootBeanDefinition cache = new RootBeanDefinition(CacheService.class);
+        registry.registerBeanDefinition("myCache", cache);
+    }
+}

src/main/java/com/shockkid/spring/ioc/LsaRun.java

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+package com.shockkid.spring.ioc;
+
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.annotation.AnnotationConfigApplicationContext;
+import org.springframework.context.annotation.Configuration;
+
+/**
+ * @auther lisang
+ * @date 2024/6/24 21:54
+ **/
+@EnableLsaDefine
+@Configuration
+public class LsaRun {
+    public static void main(String[] args) {
+        ApplicationContext ac = new AnnotationConfigApplicationContext(LsaRun.class);
+        String[] beanDefinitionNames = ac.getBeanDefinitionNames();
+        for (String beanName : beanDefinitionNames) {
+            System.out.println(beanName);
+        }
+    }
+}

src/test/java/com/shockkid/spring/ShockkidSpringApplicationTests.java

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+package com.shockkid.spring;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class ShockkidSpringApplicationTests {
+
+    @Test
+    void contextLoads() {
+    }
+
+}