spring core : web scope

spring-core/basic/build.gradle

@@ -14,6 +14,7 @@ repositories {
 
 dependencies {
     implementation 'org.springframework.boot:spring-boot-starter'
+    implementation 'org.springframework.boot:spring-boot-starter-web'
     implementation 'javax.inject:javax.inject:1'
 
     compileOnly 'org.projectlombok:lombok'

spring-core/basic/src/main/java/com/example/basic/common/MyLogger.java

@@ -0,0 +1,36 @@
+package com.example.basic.common;
+
+import org.springframework.context.annotation.Scope;
+import org.springframework.context.annotation.ScopedProxyMode;
+import org.springframework.stereotype.Component;
+
+import javax.annotation.PostConstruct;
+import javax.annotation.PreDestroy;
+import java.util.UUID;
+
+@Component
+@Scope(value = "request", proxyMode = ScopedProxyMode.TARGET_CLASS)
+public class MyLogger {
+
+    private String uuid;
+    private String requestURL;
+
+    public void setRequestURL(String requestURL) {
+        this.requestURL = requestURL;
+    }
+
+    public void log(String message) {
+        System.out.println("[" + uuid + "] " + "[" + requestURL + "] " + message);
+    }
+
+    @PostConstruct
+    public void init() {
+        uuid = UUID.randomUUID().toString();
+        System.out.println("[" + uuid + "] request scope bean create: " + this);
+    }
+
+    @PreDestroy
+    public void close() {
+        System.out.println("[" + uuid + "] request scope bean close: " + this);
+    }
+}

spring-core/basic/src/main/java/com/example/basic/web/LogDemoController.java

@@ -0,0 +1,32 @@
+package com.example.basic.web;
+
+import com.example.basic.common.MyLogger;
+import lombok.RequiredArgsConstructor;
+import org.springframework.beans.factory.ObjectProvider;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.ResponseBody;
+
+import javax.servlet.http.HttpServletRequest;
+
+@Controller
+@RequiredArgsConstructor
+public class LogDemoController {
+
+    private final LogDemoService logDemoService;
+//    private final ObjectProvider<MyLogger> myLoggerProvider;
+    private final MyLogger myLogger;
+
+    @RequestMapping("log-demo")
+    @ResponseBody
+    public String logDemo(HttpServletRequest request) {
+        String requestURL = request.getRequestURL().toString();
+//        MyLogger myLogger = myLoggerProvider.getObject();
+        myLogger.setRequestURL(requestURL);
+
+        myLogger.log("controller test");
+        logDemoService.logic("testId");
+
+        return "OK";
+    }
+}

spring-core/basic/src/main/java/com/example/basic/web/LogDemoService.java

@@ -0,0 +1,19 @@
+package com.example.basic.web;
+
+import com.example.basic.common.MyLogger;
+import lombok.RequiredArgsConstructor;
+import org.springframework.beans.factory.ObjectProvider;
+import org.springframework.stereotype.Service;
+
+@Service
+@RequiredArgsConstructor
+public class LogDemoService {
+
+//    private final ObjectProvider<MyLogger> myLoggerProvider;
+    private final MyLogger myLogger;
+
+    public void logic(String id) {
+//        MyLogger myLogger = myLoggerProvider.getObject();
+        myLogger.log("service id = " + id);
+    }
+}