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batch-quartz/src/main/java/com/spring/common/util/ApplicationUtil.java

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+package com.spring.common.util;
+
+import org.springframework.web.context.ContextLoader;
+import org.springframework.web.context.request.RequestAttributes;
+import org.springframework.web.context.request.RequestContextHolder;
+import org.springframework.web.context.request.ServletRequestAttributes;
+
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import jakarta.servlet.http.HttpSession;
+import lombok.AccessLevel;
+import lombok.NoArgsConstructor;
+
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
+public class ApplicationUtil {
+    
+    public static ServletRequestAttributes getServletRequestAttributes(){
+        return (ServletRequestAttributes) RequestContextHolder.currentRequestAttributes();
+    }
+    //Request 객체 얻기
+    public static HttpServletRequest getRequest(){
+        return getServletRequestAttributes().getRequest();
+    }
+
+    //Set Request Attribute
+    public static void setRequestAttributes(String key, Object obj){
+        getServletRequestAttributes().setAttribute(key, obj, RequestAttributes.SCOPE_REQUEST);
+    }
+    //Get Request Attribute
+    public static Object getRequestAttributes(String key){
+        return getServletRequestAttributes().getAttribute(key, RequestAttributes.SCOPE_REQUEST);
+    }
+
+    //Session 객체 얻기
+    public static HttpSession getSession(){
+        return getRequest().getSession();
+    }
+
+    //Set Session Attributes
+    public static void setSessionAttributes(String key, Object obj){
+        getServletRequestAttributes().setAttribute(key, obj, RequestAttributes.SCOPE_SESSION);
+    }
+
+    //Get Session Attributes
+    public static Object getSessionAttributes(String key){
+        return getServletRequestAttributes().getAttribute(key, RequestAttributes.SCOPE_SESSION);
+    }
+
+    //HttpServletResponse 객체 얻기
+    public static HttpServletResponse getResponse(){
+        return getServletRequestAttributes().getResponse();
+    }
+
+    //beanName을 통해서 Bean을 얻을 수 있다.
+    public static Object getBean(String beanName){
+        var context = ContextLoader.getCurrentWebApplicationContext();
+        if (context == null) {
+            throw new IllegalStateException("WebApplicationContext를 찾을 수 없습니다.");
+        }
+        return context.getBean(beanName);
+    }
+
+}