Question

我正在运行tomcat 8 / spring 5.4.1 / Tapestry 5.4.1设置。我有一个带有布局组件的简单模板。该模板调用一个获取人数的spring服务。简单。奇怪的是，索引模板被加载了两次，看起来它是由于t：type =＆＃34; layout＆＃34; index.tml页面中的标记，它引用了布局组件。如果我删除它，它只会被调用一次。

这是来自tomcat的日志，清楚地显示索引被调用两次。

>     2016-07-01 09:47:39 INFO  PageLoader:213 - Loaded page 'Index' (en) in 302.278 ms
>     2016-07-01 09:47:39 INFO  Index:25 - [Index] onActivate
>     2016-07-01 09:47:39 INFO  Index:20 - [Index] setupRender
>     2016-07-01 09:47:39 INFO  Index:31 - [Layout] setupRender
>     2016-07-01 09:47:39 INFO  Index:30 - [Index] getPersonCount
>     2016-07-01 09:47:40 INFO  QueryTranslatorFactoryInitiator:47 - HHH000397: Using ASTQueryTranslatorFactory
>     Hibernate: select count(*) as col_0_0_ from person person0_
>     2016-07-01 09:47:40 INFO  Index:25 - [Index] onActivate
>     2016-07-01 09:47:40 INFO  Index:20 - [Index] setupRender
>     2016-07-01 09:47:40 INFO  Index:31 - [Layout] setupRender
>     2016-07-01 09:47:40 INFO  Index:30 - [Index] getPersonCount
>     Hibernate: select count(*) as col_0_0_ from person person0_

Index.tml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html t:type="layout" t:pageTitle="Admin Main" xmlns:t="http://tapestry.apache.org/schema/tapestry_5_4.xsd" xmlns:p="tapestry:parameter">   
    <head>
        <meta http-equiv="X-UA-Compatible" content="IE=edge" />
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
        <meta content="width=device-width, initial-scale=1.0" name="viewport"/>
        <title></title>     
    </head>
    <body>
        ${personCount}
    </body>
</html>

Layout.tml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns:t="http://tapestry.apache.org/schema/tapestry_5_3.xsd" xmlns:p="tapestry:parameter">
    <head>
        <meta http-equiv="X-UA-Compatible" content="IE=edge" />
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
        <meta content="width=device-width, initial-scale=1.0" name="viewport"/>
        <title></title>

        <link rel="stylesheet" type="text/css" href="dev/css/bootstrap.css"/>
        <link rel="stylesheet" type="text/css" href="dev/css/main.css"/>
        <script src="dev/js/jquery-2.2.4.js"></script>
        <script src="dev/js/bootstrap.js"></script>

    </head>

<!-- Page Body -->
    <body>
        <div id="mainContainer" class="container">
            <t:body/>
        </div>
    </body>
</html>

Answer 1

可能是您在执行Hibernate调用后尝试返回HomePage。如果您在Hibernate调用执行后观察到您的页面再次加载

tapestry模板为每个请求调用两次

1 个答案: