setInterval jsf2.0 glassfish v3 和内存泄漏

发布于 2024-09-19 23:22:20 字数 1725 浏览 5 评论 0原文

伙计们，我是新人，我不是英语。我在使用 js setInterval 模拟用户每 X 秒单击一次提交按钮时遇到问题。页面中只有一个h:form和h:commandButton。我使用分析器，发现 java.util.HashMap 的大小不断增加。几个小时后，使用的堆大小相对于起始点增长了很多。

请帮助我，这个问题让我抓狂。

这是代码：

<?xml version = "1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
 "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">

<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:ui="http://java.sun.com/jsf/facelets"
      xmlns:f="http://java.sun.com/jsf/core"
      xmlns:h="http://java.sun.com/jsf/html">
    <h:head>
        <script type="text/javascript">
            var timeoutId = window.setInterval( "userClick()" , 1000 );
        </script>
    </h:head>
    <h:body>
    <h:panelGroup id="testo">test</h:panelGroup>
    <h:form prependId="false" >
        <h:commandButton id="buttonId"
                         action="null"
                         value="Invia">
            <f:ajax event="click" execute="@form" render=":testo"/>
        </h:commandButton>
    </h:form>
    <script type="text/javascript">
    function userClick()
    {
        document.getElementById('buttonId').click();
    }
    </script>
    </h:body>
</html>

更新：1天后应用程序再次崩溃。现在我只使用了 setInterval，但我有 glassfish 生成的 heapDump 这是屏幕截图，但我无法发布它，因为我的声誉太低。然而 java.lang.Object[] 消耗堆的 20%，java.util.HashMap$Entry[] 18% 和 HashMap 10% 有什么想法吗？

更新：大家好，我已经解决了我的问题，并发现了 CDI 依赖/注入中的错误。我已经解决了用 @ManagedBean 更改注释 @Named 的问题，这解决了我的问题。在示例中，我省略了代码，因为我认为 CDI 没有错误。显然，用@Named注释的Bean具有请求范围，而ApplicationScoped Bean不会产生错误。我对 CDI 比较陌生，那么我必须在哪里报告错误？

原文

guys i'm new and i'm not english.
I have a problem with using js setInterval that simulate a user click, every X seconds, on submit button.
In the page there is only one h:form and h:commandButton.
I use a profiler and i see that the java.util.HashMap increase continuosly it's size.
After some hours the used heap size is growed a lot respect the start point.

Please help me, this problem make me crazy.

This is the code:

<?xml version = "1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
 "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">

<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:ui="http://java.sun.com/jsf/facelets"
      xmlns:f="http://java.sun.com/jsf/core"
      xmlns:h="http://java.sun.com/jsf/html">
    <h:head>
        <script type="text/javascript">
            var timeoutId = window.setInterval( "userClick()" , 1000 );
        </script>
    </h:head>
    <h:body>
    <h:panelGroup id="testo">test</h:panelGroup>
    <h:form prependId="false" >
        <h:commandButton id="buttonId"
                         action="null"
                         value="Invia">
            <f:ajax event="click" execute="@form" render=":testo"/>
        </h:commandButton>
    </h:form>
    <script type="text/javascript">
    function userClick()
    {
        document.getElementById('buttonId').click();
    }
    </script>
    </h:body>
</html>

Update: After 1 days the application crash again.
Now I have used only the setInterval but i have the heapDump generated by glassfish this is the screenshot but i'm unable to post it because my reputation is too low.
however java.lang.Object[] consume 20% of heap, java.util.HashMap$Entry[]18% and HashMap 10%
Any idea?

Update:
Hi, guys i have solved my problem and have found a bug in CDI dependency/injection.
I have solved my problem changing the Annotation @Named with @ManagedBean and this solve my problem.
In the example i have omitted the code because i think that CDI haven't bug.
Obviously the Bean annotated with @Named have request Scoped while the ApplicationScoped Bean doesn't produce the bug.
I'm relatively new with CDI, so where i must report the bug?

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