提交《Spring核心技术》第17章代码

pom.xml

@@ -25,6 +25,7 @@
         <module>spring-annotation-chapter-14</module>
         <module>spring-annotation-chapter-15</module>
         <module>spring-annotation-chapter-16</module>
+        <module>spring-annotation-chapter-17</module>
     </modules>
 
     <properties>

spring-annotation-chapter-17/pom.xml

+<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>io.binghe.spring</groupId>
+        <artifactId>spring-annotation-book</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>spring-annotation-chapter-17</artifactId>
+
+    <properties>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+</project>
\ No newline at end of file

spring-annotation-chapter-17/src/main/java/io/binghe/spring/annotation/chapter17/ScopeTest.java

+/**
+ * Copyright 2022-9999 the original author or authors.
+ * <p>
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.binghe.spring.annotation.chapter17;
+
+import io.binghe.spring.annotation.chapter17.bean.ScopeBean;
+import io.binghe.spring.annotation.chapter17.config.ScopeConfig;
+import org.springframework.context.annotation.AnnotationConfigApplicationContext;
+
+/**
+ * @author binghe(微信 : hacker_binghe)
+ * @version 1.0.0
+ * @description @Scope注解案例的测试类
+ * @github https://github.com/binghe001
+ * @copyright 公众号: 冰河技术
+ */
+public class ScopeTest {
+
+    public static void main(String[] args) {
+        System.out.println("创建IOC容器开始...");
+        AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(ScopeConfig.class);
+        System.out.println("创建IOC容器结束...");
+        System.out.println("从IOC容器中第一次获取Bean对象开始...");
+        ScopeBean scopeBean = context.getBean(ScopeBean.class);
+        System.out.println(scopeBean);
+        System.out.println("从IOC容器中第一次获取Bean对象结束...");
+        System.out.println("从IOC容器中第二次获取Bean对象开始...");
+        scopeBean = context.getBean(ScopeBean.class);
+        System.out.println(scopeBean);
+        System.out.println("从IOC容器中第二次获取Bean对象结束...");
+    }
+}

spring-annotation-chapter-17/src/main/java/io/binghe/spring/annotation/chapter17/bean/ScopeBean.java

+/**
+ * Copyright 2022-9999 the original author or authors.
+ * <p>
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.binghe.spring.annotation.chapter17.bean;
+
+/**
+ * @author binghe(微信 : hacker_binghe)
+ * @version 1.0.0
+ * @description @Scope注解的
+ * @github https://github.com/binghe001
+ * @copyright 公众号: 冰河技术
+ */
+public class ScopeBean {
+    public ScopeBean(){
+        System.out.println("执行ScopeBean类的构造方法...");
+    }
+}

spring-annotation-chapter-17/src/main/java/io/binghe/spring/annotation/chapter17/config/ScopeConfig.java

+/**
+ * Copyright 2022-9999 the original author or authors.
+ * <p>
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.binghe.spring.annotation.chapter17.config;
+
+import io.binghe.spring.annotation.chapter17.bean.ScopeBean;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Scope;
+
+/**
+ * @author binghe(微信 : hacker_binghe)
+ * @version 1.0.0
+ * @description @Scope注解的配置类
+ * @github https://github.com/binghe001
+ * @copyright 公众号: 冰河技术
+ */
+@Configuration
+public class ScopeConfig {
+
+    @Bean
+//    @Scope(value = "singleton")
+    @Scope(value = "prototype")
+    public ScopeBean scopeBean(){
+        return new ScopeBean();
+    }
+}