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2023-10-11
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2023-07-03
package itn.com.cmm.util;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.springframework.web.context.ContextLoader;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
/**
*
* @author : 이호영
* @fileName : ContextUtil.java
* @date : 2023.04.07
* @description : 빈이 아닌 객체에서 스프링 빈(bean) 및 서블릿(servlet) 객체 직접 얻는 Util
* ===========================================================
* DATE AUTHOR NOTE
* ----------------------------------------------------------- *
* 2023.04.07 이호영 최초 생성
*
*
*
*/
public class ContextUtil {
/**
* 빈을 직접 얻습니다.
*
* @param beanName
* @return
*/
public static Object getBean(String beanName) {
WebApplicationContext context = ContextLoader.getCurrentWebApplicationContext();
return context.getBean(beanName);
}
/**
* HttpServletReqeust 객체를 직접 얻습니다.
* @return
*/
public static HttpServletRequest getRequest() {
ServletRequestAttributes attr =
(ServletRequestAttributes)RequestContextHolder.currentRequestAttributes();
return attr.getRequest();
}
/**
* HttpServletResponse 객체를 직접 얻습니다.
* @return
*/
public static HttpServletResponse getResponse() {
ServletRequestAttributes attr =
(ServletRequestAttributes)RequestContextHolder.currentRequestAttributes();
return attr.getResponse();
}
/**
* HttpSession 객체를 직접 얻습니다.
*
* @param gen 새 세션 생성 여부
* @return
*/
public static HttpSession getSession(boolean gen) {
return ContextUtil.getRequest().getSession(gen);
}
/**
* REQUEST 영역에서 가져오기
*
* @param key
* @return
*/
public static Object getAttrFromRequest(String key) {
ServletRequestAttributes attr =
(ServletRequestAttributes)RequestContextHolder.currentRequestAttributes();
return attr.getAttribute(key, ServletRequestAttributes.SCOPE_REQUEST);
}
/**
* REQUEST 영역에 객체 저장
*
* @param key
* @param obj
*/
public static void setAttrToRequest(String key, Object obj) {
ServletRequestAttributes attr =
(ServletRequestAttributes)RequestContextHolder.currentRequestAttributes();
attr.setAttribute(key, obj, ServletRequestAttributes.SCOPE_REQUEST);
}
/**
* SESSION 영역에서 가져오기
*
* @param key
* @return
*/
public static Object getAttrFromSession(String key) {
ServletRequestAttributes attr =
(ServletRequestAttributes)RequestContextHolder.currentRequestAttributes();
return attr.getAttribute(key, ServletRequestAttributes.SCOPE_SESSION);
}
/**
* Session 영역에 객체 저장
*
* @param key
* @param obj
*/
public static void setAttrToSession(String key, Object obj) {
ServletRequestAttributes attr =
(ServletRequestAttributes)RequestContextHolder.currentRequestAttributes();
attr.setAttribute(key, obj, ServletRequestAttributes.SCOPE_SESSION);
}
}