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스프링 MVC 1편 - 백엔드 웹 개발 핵심 기술

HttpServletRequest - 기본 사용법

requestheaderservlet 실행 에러

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2.3K

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3분경 코드 실행시 다음과같이 

파싱은 제대로 되나, 

밑에 에러들( IOExeption .. )이 많이 뜹니다 .

 

에러 내용이고,   최하단 코드업로드도했습니다.

--- REQUEST-LINE - start ---

request.getMethod() = GET

request.getProtocal() = HTTP/1.1

request.getScheme() = http

request.getRequestURL() = http://localhost:8080/request-header

request.getRequestURI() = /request-header

request.getQueryString() = null

request.isSecure() = false

--- REQUEST-LINE - end ---

 

2022-01-21 15:13:09.393 DEBUG 27180 --- [nio-8080-exec-1] o.a.coyote.http11.Http11InputBuffer      : Before fill(): parsingHeader: [true], parsingRequestLine: [true], parsingRequestLinePhase: [0], parsingRequestLineStart: [0], byteBuffer.position(): [0], byteBuffer.limit(): [0], end: [780]

2022-01-21 15:13:09.393 DEBUG 27180 --- [nio-8080-exec-1] o.a.coyote.http11.Http11InputBuffer      : Received []

2022-01-21 15:13:09.394 DEBUG 27180 --- [nio-8080-exec-1] o.apache.coyote.http11.Http11Processor   : Socket: [org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper@d344380:org.apache.tomcat.util.net.NioChannel@91bedf8:java.nio.channels.SocketChannel[connected local=/[0:0:0:0:0:0:0:1]:8080 remote=/[0:0:0:0:0:0:0:1]:51431]], Status in: [OPEN_READ], State out: [OPEN]

2022-01-21 15:13:11.105 DEBUG 27180 --- [nio-8080-exec-2] o.a.coyote.http11.Http11InputBuffer      : Before fill(): parsingHeader: [true], parsingRequestLine: [true], parsingRequestLinePhase: [0], parsingRequestLineStart: [0], byteBuffer.position(): [0], byteBuffer.limit(): [0], end: [780]

2022-01-21 15:13:11.105 DEBUG 27180 --- [nio-8080-exec-3] o.a.coyote.http11.Http11InputBuffer      : Before fill(): parsingHeader: [true], parsingRequestLine: [true], parsingRequestLinePhase: [0], parsingRequestLineStart: [0], byteBuffer.position(): [0], byteBuffer.limit(): [0], end: [0]

2022-01-21 15:13:11.113 DEBUG 27180 --- [nio-8080-exec-3] o.apache.coyote.http11.Http11Processor   : Error parsing HTTP request header

 

java.io.EOFException: null

at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.fillReadBuffer(NioEndpoint.java:1328) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.read(NioEndpoint.java:1215) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.coyote.http11.Http11InputBuffer.fill(Http11InputBuffer.java:805) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.coyote.http11.Http11InputBuffer.parseRequestLine(Http11InputBuffer.java:360) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:269) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:895) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1732) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at java.base/java.lang.Thread.run(Thread.java:832) ~[na:na]

 

2022-01-21 15:13:11.113 DEBUG 27180 --- [nio-8080-exec-2] o.apache.coyote.http11.Http11Processor   : Error parsing HTTP request header

 

java.io.EOFException: null

at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.fillReadBuffer(NioEndpoint.java:1328) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.read(NioEndpoint.java:1215) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.coyote.http11.Http11InputBuffer.fill(Http11InputBuffer.java:805) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.coyote.http11.Http11InputBuffer.parseRequestLine(Http11InputBuffer.java:360) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:269) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:895) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1732) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at java.base/java.lang.Thread.run(Thread.java:832) ~[na:na]

 

2022-01-21 15:13:11.114 DEBUG 27180 --- [nio-8080-exec-3] o.apache.coyote.http11.Http11Processor   : Error state [CLOSE_CONNECTION_NOW] reported while processing request

 

java.io.EOFException: null

at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.fillReadBuffer(NioEndpoint.java:1328) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.read(NioEndpoint.java:1215) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.coyote.http11.Http11InputBuffer.fill(Http11InputBuffer.java:805) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.coyote.http11.Http11InputBuffer.parseRequestLine(Http11InputBuffer.java:360) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:269) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:895) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1732) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at java.base/java.lang.Thread.run(Thread.java:832) ~[na:na]

 

2022-01-21 15:13:11.114 DEBUG 27180 --- [nio-8080-exec-2] o.apache.coyote.http11.Http11Processor   : Error state [CLOSE_CONNECTION_NOW] reported while processing request

 

java.io.EOFException: null

at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.fillReadBuffer(NioEndpoint.java:1328) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.read(NioEndpoint.java:1215) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.coyote.http11.Http11InputBuffer.fill(Http11InputBuffer.java:805) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.coyote.http11.Http11InputBuffer.parseRequestLine(Http11InputBuffer.java:360) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:269) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:895) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1732) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.56.jar:9.0.56]

at java.base/java.lang.Thread.run(Thread.java:832) ~[na:na]

 

2022-01-21 15:13:11.115 DEBUG 27180 --- [nio-8080-exec-3] o.apache.coyote.http11.Http11Processor   : Socket: [org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper@d344380:org.apache.tomcat.util.net.NioChannel@91bedf8:java.nio.channels.SocketChannel[connected local=/[0:0:0:0:0:0:0:1]:8080 remote=/[0:0:0:0:0:0:0:1]:51431]], Status in: [OPEN_READ], State out: [CLOSED]

2022-01-21 15:13:11.115 DEBUG 27180 --- [nio-8080-exec-2] o.apache.coyote.http11.Http11Processor   : Socket: [org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper@744cb7a8:org.apache.tomcat.util.net.NioChannel@639e0620:java.nio.channels.SocketChannel[connected local=/[0:0:0:0:0:0:0:1]:8080 remote=/[0:0:0:0:0:0:0:1]:51430]], Status in: [OPEN_READ], State out: [CLOSED]

 

 

---

package hello.servlet.basic.request;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebServlet(name = "requestHeaderServlet", urlPatterns = "/request-header")
public class RequestHeaderServlet extends HttpServlet {

    @Override
    protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

        printStartLine(request);
    }

    private void printStartLine(HttpServletRequest request) {
        System.out.println("--- REQUEST-LINE - start ---");
        System.out.println("request.getMethod() = " + request.getMethod()); //GET
        System.out.println("request.getProtocal() = " + request.getProtocol()); //HTTP/1.1
        System.out.println("request.getScheme() = " + request.getScheme()); //http
        // http://localhost:8080/request-header
        System.out.println("request.getRequestURL() = " + request.getRequestURL());
        // /request-test
        System.out.println("request.getRequestURI() = " + request.getRequestURI());
        //username=hi
        System.out.println("request.getQueryString() = " + request.getQueryString());
        System.out.println("request.isSecure() = " + request.isSecure()); //https사용 유무
        System.out.println("--- REQUEST-LINE - end ---");
        System.out.println();
    }
}

 

 

 

 

 

MVCspring

답변 1

1

codesweaver님의 프로필 이미지
codesweaver

안녕하세요,  스프님. 공식 서포터즈 codesweaver 입니다.

.
오류가 발생했을 때의 로그 레벨이 DEBUG인 것을 보면,

무시 하여도 상관없는 오류인것 같긴 합니다.

.

그래도 원인이 궁금해 여러모로 찾아봤으나 명확한 답은 없었습니다.

아래처럼 build.gradle 을 refresh 한 뒤 해결된 경우가 있고.

https://www.inflearn.com/questions/216827

.

아래의 경우 컴퓨터를 재부팅 하지 않은 상태에서 인터넷 망 교체가 있었고 그 뒤 오류 로그를 확인했다고 합니다. 그리고 재부팅 이후 해결된 케이스 입니다.

https://oingdaddy.tistory.com/408

.

혹시 정확한 원인을 알게 되면 공유 부탁드립니다.
.
감사합니다.

 

wonny님의 프로필 이미지
wonny

시도 해볼게요 감사해요

스프님의 프로필 이미지
스프

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