getOutputStream() has already been called for this response

로그를 확인해보니 jsp 파일에서 

 

"getOutputStream() has already been called for this response" 에러가 발생

05-Oct-2023 14:36:50.016 SEVERE [http-nio-8180-exec-1284] org.apache.catalina.core.ApplicationDispatcher.invoke Servlet.service() for servlet jsp threw exception
 java.lang.IllegalStateException: getOutputStream() has already been called for this response
	at org.apache.catalina.connector.Response.getWriter(Response.java:609)
	at org.apache.catalina.connector.ResponseFacade.getWriter(ResponseFacade.java:211)
	at org.apache.jasper.runtime.JspWriterImpl.initOut(JspWriterImpl.java:118)
	at org.apache.jasper.runtime.JspWriterImpl.flushBuffer(JspWriterImpl.java:111)
	at org.apache.jasper.runtime.PageContextImpl.release(PageContextImpl.java:184)
	at org.apache.jasper.runtime.JspFactoryImpl.internalReleasePageContext(JspFactoryImpl.java:120)
	at org.apache.jasper.runtime.JspFactoryImpl.releasePageContext(JspFactoryImpl.java:75)

 

response.getOutputStream() 호출 하는 상단에

 

out.clear(); 
out=pageContext.pushBody(); 

 

추가하여 해결하였다.

 

out.clear();
out=pageContext.pushBody();	

OutputStream out = response.getOutputStream();