MyBatis - Logging

왜씀?

클라이언트의 요청이 있을 때 서버에서 어떠한 요청을 처리가 가능한지 목록을 볼 수 있음.

 

실행 순서

 

1.  구글 검색 --> spring mvc log maven dependency

 

2. pom.xml 에 추가

<!-- log -->

<!-- SLF4J API -->

<dependency>

<groupId>org.slf4j</groupId>

<artifactId>slf4j-api</artifactId>

<version>1.7.36</version>

</dependency>

 

<!-- SLF4J → Log4j 바인딩 -->

<dependency>

<groupId>org.slf4j</groupId>

<artifactId>slf4j-log4j12</artifactId>

<version>1.7.36</version>

</dependency>

 

<!-- Log4j Core -->

<dependency>

<groupId>log4j</groupId>

<artifactId>log4j</artifactId>

<version>1.2.17</version>

</dependency>

 

3. log4j.xml 파일 생성

 

 

4. log4j.xml 에 아래 코드 추가

- value = "trace" : MyBaits가 내부에서 실행하는 거의 모든 과정을 다 출력

- vlaue = "Debug" : 주로 실행된 sql과 파라미터만 보여줌

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE log4j:configuration PUBLIC "-//APACHE//DTD LOG4J 1.2//EN"

"https://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/xml/doc-files/log4j.dtd">

 

<log4j:configuration debug="true" xmlns:log4j='http://jakarta.apache.org/log4j/'>

 

<appender name="console" class="org.apache.log4j.ConsoleAppender">

<layout class="org.apache.log4j.PatternLayout">

<param name="ConversionPattern"

value="%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n" />

</layout>

</appender>

 

<logger name="org.springframework.web">

<level value="trace"></level>

</logger>

 

<root>

<level value="info" />

<appender-ref ref="console" />

</root>

 

</log4j:configuration>

 

5. 서버 실행시 콘솔창

 

6. url 요청시 콘솔창

 

7. 주소록 목록으로 눌렀을 때 콘솔창

2025-09-04 09:38:41 TRACE DispatcherServlet:117 - GET "/springmvc/addrbook_list.do", parameters={}, headers={masked} in DispatcherServlet 'myservlet'

2025-09-04 09:38:41 TRACE RequestMappingHandlerMapping:530 - Mapped to lx.edu.springmvc.AddrBookController#list(HttpServletRequest)

2025-09-04 09:38:41 TRACE HandlerMethod:183 - Arguments: [org.apache.catalina.connector.RequestFacade@23f5b14e]

2025-09-04 09:38:41 TRACE RequestMappingHandlerAdapter:297 - Applying default cacheSeconds=-1

2025-09-04 09:38:41 TRACE DispatcherServlet:1431 - Rendering view [org.springframework.web.servlet.view.JstlView: name [addrbook_list]; URL [/WEB-INF/views/addrbook_list.jsp]]

2025-09-04 09:38:41 DEBUG JstlView:307 - View name [addrbook_list], model {}

2025-09-04 09:38:41 DEBUG JstlView:169 - Forwarding to [/WEB-INF/views/addrbook_list.jsp]

2025-09-04 09:38:41 DEBUG DispatcherServlet:1138 - Completed 200 OK, headers={}

2025-09-04 09:38:41 TRACE DispatcherServlet:117 - GET "/springmvc/addrbook.css", parameters={}, headers={masked} in DispatcherServlet 'myservlet'

2025-09-04 09:38:41 WARN PageNotFound:1301 - No mapping for GET /springmvc/addrbook.css

2025-09-04 09:38:41 WARN PageNotFound:459 - No endpoint GET /springmvc/addrbook.css.

2025-09-04 09:38:41 DEBUG DefaultHandlerExceptionResolver:702 - Resolved [org.springframework.web.servlet.NoHandlerFoundException: No endpoint GET /springmvc/addrbook.css.]

2025-09-04 09:38:41 TRACE DispatcherServlet:1175 - No view rendering, null ModelAndView returned.

2025-09-04 09:38:41 DEBUG DispatcherServlet:1138 - Completed 404 NOT_FOUND, headers={}