Tomcat can not forward error code 500 when the page too large

up vote
0
down vote

favorite

My environment:
ubuntu 18.04
openjdk version "1.8.0_181"
tomcat 7.0.91

And I put these into WEB-INF/web.xml

<error-page>

    <error-code>500</error-code>

    <location>/500.html</location>

</error-page>

<error-page>

    <exception-type>java.lang.Exception</exception-type>

    <location>/500.html</location>

</error-page>

Now I write a test.jsp as:

<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>

<!DOCTYPE HTML>

<html>

<head>

</head>

<body>

<c:forEach begin="1" end="1000" step="1" var="i">

just test exception forward.

</c:forEach>

<%

    Object o = null;

    String s = o.toString();

%>

</body>

</html>

It will get an exception and goto /500.html. but it can not, when the exception, it just include the 500.html into current page.

I think the page is too large, if I put end="100" of c:forEach, it will forward 500.html.

How to fix this please?

edited Nov 11 at 0:44

asked Nov 11 at 0:39

xunitc

216

1

You need to understand that at some point the servlet container (Tomcat) decides to actually start sending data over the wire (usually when an output buffer reaches some threshold). If anything happens after that point, there is nothing much a server can do to take back the data that has already been sent. docs.oracle.com/javaee/6/api/javax/servlet/…
– Pavel Horal
Nov 11 at 0:51

@PavelHoral Thank you. and is there a parameter to adjust buffer-size please?
– xunitc
Nov 11 at 0:57

1

I am not sure as I never needed to change such thing.... maybe socket.appWriteBufSize tomcat.apache.org/tomcat-8.5-doc/config/http.html . But I would say you just need to write your app in a different way... maybe don't write Java code into JSP as that is considered a bad practice.
– Pavel Horal
Nov 11 at 1:57

@PavelHoral Thank you. but it can not work. There are few java code in jsp (3 lines), just some el expression. but too many html(compressed) in it. Now I put the 3 lines java code to the head of jsp, it will ok.
– xunitc
Nov 11 at 2:38

add a comment |

up vote
0
down vote

favorite

My environment:
ubuntu 18.04
openjdk version "1.8.0_181"
tomcat 7.0.91

And I put these into WEB-INF/web.xml

<error-page>

    <error-code>500</error-code>

    <location>/500.html</location>

</error-page>

<error-page>

    <exception-type>java.lang.Exception</exception-type>

    <location>/500.html</location>

</error-page>

Now I write a test.jsp as:

<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>

<!DOCTYPE HTML>

<html>

<head>

</head>

<body>

<c:forEach begin="1" end="1000" step="1" var="i">

just test exception forward.

</c:forEach>

<%

    Object o = null;

    String s = o.toString();

%>

</body>

</html>

It will get an exception and goto /500.html. but it can not, when the exception, it just include the 500.html into current page.

I think the page is too large, if I put end="100" of c:forEach, it will forward 500.html.

How to fix this please?

edited Nov 11 at 0:44

asked Nov 11 at 0:39

xunitc

216

1

You need to understand that at some point the servlet container (Tomcat) decides to actually start sending data over the wire (usually when an output buffer reaches some threshold). If anything happens after that point, there is nothing much a server can do to take back the data that has already been sent. docs.oracle.com/javaee/6/api/javax/servlet/…
– Pavel Horal
Nov 11 at 0:51

@PavelHoral Thank you. and is there a parameter to adjust buffer-size please?
– xunitc
Nov 11 at 0:57

1

I am not sure as I never needed to change such thing.... maybe socket.appWriteBufSize tomcat.apache.org/tomcat-8.5-doc/config/http.html . But I would say you just need to write your app in a different way... maybe don't write Java code into JSP as that is considered a bad practice.
– Pavel Horal
Nov 11 at 1:57

@PavelHoral Thank you. but it can not work. There are few java code in jsp (3 lines), just some el expression. but too many html(compressed) in it. Now I put the 3 lines java code to the head of jsp, it will ok.
– xunitc
Nov 11 at 2:38

add a comment |

up vote
0
down vote

favorite

My environment:
ubuntu 18.04
openjdk version "1.8.0_181"
tomcat 7.0.91

And I put these into WEB-INF/web.xml

<error-page>

    <error-code>500</error-code>

    <location>/500.html</location>

</error-page>

<error-page>

    <exception-type>java.lang.Exception</exception-type>

    <location>/500.html</location>

</error-page>

Now I write a test.jsp as:

<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>

<!DOCTYPE HTML>

<html>

<head>

</head>

<body>

<c:forEach begin="1" end="1000" step="1" var="i">

just test exception forward.

</c:forEach>

<%

    Object o = null;

    String s = o.toString();

%>

</body>

</html>

It will get an exception and goto /500.html. but it can not, when the exception, it just include the 500.html into current page.

I think the page is too large, if I put end="100" of c:forEach, it will forward 500.html.

How to fix this please?

edited Nov 11 at 0:44

asked Nov 11 at 0:39

xunitc

216

My environment:
ubuntu 18.04
openjdk version "1.8.0_181"
tomcat 7.0.91

And I put these into WEB-INF/web.xml

<error-page>

    <error-code>500</error-code>

    <location>/500.html</location>

</error-page>

<error-page>

    <exception-type>java.lang.Exception</exception-type>

    <location>/500.html</location>

</error-page>

Now I write a test.jsp as:

<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>

<!DOCTYPE HTML>

<html>

<head>

</head>

<body>

<c:forEach begin="1" end="1000" step="1" var="i">

just test exception forward.

</c:forEach>

<%

    Object o = null;

    String s = o.toString();

%>

</body>

</html>

It will get an exception and goto /500.html. but it can not, when the exception, it just include the 500.html into current page.

I think the page is too large, if I put end="100" of c:forEach, it will forward 500.html.

How to fix this please?

tomcat error-code

edited Nov 11 at 0:44

asked Nov 11 at 0:39

xunitc

216

edited Nov 11 at 0:44

asked Nov 11 at 0:39

xunitc

216

edited Nov 11 at 0:44

asked Nov 11 at 0:39

xunitc

216

asked Nov 11 at 0:39

xunitc

216

asked Nov 11 at 0:39

xunitc

216

1

You need to understand that at some point the servlet container (Tomcat) decides to actually start sending data over the wire (usually when an output buffer reaches some threshold). If anything happens after that point, there is nothing much a server can do to take back the data that has already been sent. docs.oracle.com/javaee/6/api/javax/servlet/…
– Pavel Horal
Nov 11 at 0:51

@PavelHoral Thank you. and is there a parameter to adjust buffer-size please?
– xunitc
Nov 11 at 0:57

1

I am not sure as I never needed to change such thing.... maybe socket.appWriteBufSize tomcat.apache.org/tomcat-8.5-doc/config/http.html . But I would say you just need to write your app in a different way... maybe don't write Java code into JSP as that is considered a bad practice.
– Pavel Horal
Nov 11 at 1:57

@PavelHoral Thank you. but it can not work. There are few java code in jsp (3 lines), just some el expression. but too many html(compressed) in it. Now I put the 3 lines java code to the head of jsp, it will ok.
– xunitc
Nov 11 at 2:38

add a comment |

1

You need to understand that at some point the servlet container (Tomcat) decides to actually start sending data over the wire (usually when an output buffer reaches some threshold). If anything happens after that point, there is nothing much a server can do to take back the data that has already been sent. docs.oracle.com/javaee/6/api/javax/servlet/…
– Pavel Horal
Nov 11 at 0:51

@PavelHoral Thank you. and is there a parameter to adjust buffer-size please?
– xunitc
Nov 11 at 0:57

1

I am not sure as I never needed to change such thing.... maybe socket.appWriteBufSize tomcat.apache.org/tomcat-8.5-doc/config/http.html . But I would say you just need to write your app in a different way... maybe don't write Java code into JSP as that is considered a bad practice.
– Pavel Horal
Nov 11 at 1:57

@PavelHoral Thank you. but it can not work. There are few java code in jsp (3 lines), just some el expression. but too many html(compressed) in it. Now I put the 3 lines java code to the head of jsp, it will ok.
– xunitc
Nov 11 at 2:38

You need to understand that at some point the servlet container (Tomcat) decides to actually start sending data over the wire (usually when an output buffer reaches some threshold). If anything happens after that point, there is nothing much a server can do to take back the data that has already been sent. docs.oracle.com/javaee/6/api/javax/servlet/…
– Pavel Horal
Nov 11 at 0:51

@PavelHoral Thank you. and is there a parameter to adjust buffer-size please?
– xunitc
Nov 11 at 0:57

I am not sure as I never needed to change such thing.... maybe socket.appWriteBufSize tomcat.apache.org/tomcat-8.5-doc/config/http.html . But I would say you just need to write your app in a different way... maybe don't write Java code into JSP as that is considered a bad practice.
– Pavel Horal
Nov 11 at 1:57

@PavelHoral Thank you. but it can not work. There are few java code in jsp (3 lines), just some el expression. but too many html(compressed) in it. Now I put the 3 lines java code to the head of jsp, it will ok.
– xunitc
Nov 11 at 2:38

add a comment |

active

oldest

votes

Your Answer

StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");

StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});

}
});

draft saved

draft discarded

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53244810%2ftomcat-can-not-forward-error-code-500-when-the-page-too-large%23new-answer', 'question_page');
}
);

Post as a guest

Name

Required, but never shown

active

oldest

votes

draft saved

draft discarded

draft saved

draft discarded

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

Post as a guest

Name

Required, but never shown

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

Name

Required, but never shown

Name

Required, but never shown

This page is only for reference, If you need detailed information, please check here

搜尋此網誌

Vfrdtyky