【发布时间】：2011-07-11 22:15:01
【问题描述】：
我正在使用 Spring Framework 制作一个项目，并使用 Spring MVC Framework 来构建我的视图。
现在一切正常，运行流畅，除了这个简单的 GET 页面需要 2 秒，有时需要更多时间才能在 localhost 上加载。
正如您在日志（链接）中看到的那样，GenericConversionService 非常慢，试图找到转换器来绑定属性。
非常感谢您的帮助！
提前致谢（为我的拼写错误道歉）:)
更新：
显然，转换服务为“http://www.springframework.org/tags/form”命名空间中的每个（与 Path 属性绑定的）表单标签运行。我使用的表单标签越多，页面加载速度就越慢。我应该使用普通的 html 表单标签来提高性能还是有办法阻止它寻找“正确”的转换器？
其他信息：
日志： Link（滚动大约 1/3，您将看到大量 GenericConversionService 日志
Spring 洞察分析信息：
控制器（草率）代码：
@RequestMapping(value = "/route/create", method = RequestMethod.GET)
public ModelAndView getCreateRoute(){
RouteCreateUpdateViewModel result = new RouteCreateUpdateViewModel();
User u = (User) SecurityContextHolder.getContext().getAuthentication().getPrincipal();
u = us.get(u.getId());
ModelAndView mav = new ModelAndView("route/create", "routeCreateUpdateModel", result);
mav.addObject("favLocations", u.getLocations());
mav.addObject("cars", u.getCars());
result.setDateDay(Calendar.getInstance().get(Calendar.DAY_OF_MONTH) + 1); // January = 0
result.setDateMonth(Calendar.getInstance().get(Calendar.MONTH));
result.setDateYear(Calendar.getInstance().get(Calendar.YEAR));
mav.addObject("nextYear", result.getDateYear() + 1);
return mav;
}
查看代码：
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix="spring" uri="http://www.springframework.org/tags" %>
<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %>
<%@ taglib prefix="tags" tagdir="/WEB-INF/tags" %>
<!-- //TODO I18N -->
<style type="text/css">
li:focus {
background-color:green;
}
</style>
<script>
var highlightedElement = null;
$(document).ready(function(){
$("input,select").click(function() {
if(highlightedElement != null)
{
$(highlightedElement).removeClass("curFocus");
if(highlightedElement.hasClass("location"))
{
checkLocation(highlightedElement);
}
}
var newHighlightedElement = $(this).parent().parent();
$(newHighlightedElement).addClass("curFocus");
highlightedElement = newHighlightedElement;
});
});
function checkLocation(highlightedElement)
{
var parameters = {
zipcode: $(highlightedElement).find(".zipcode").val(),
street: $(highlightedElement).find(".street").val(),
streetNr: $(highlightedElement).find(".streetNr").val()
};
$.getJSON('/location/validate.php', parameters, function(data) {
if(data.result != null)
{
$(highlightedElement).removeClass("badData");
$(highlightedElement).addClass("goodData");
}
else {
$(highlightedElement).removeClass("goodData")
$(highlightedElement).addClass("badData");
}
});
}
</script>
<div>
<h1><fmt:message key="route.create.header"/></h1>
<div class="form-container">
<c:url value="/route/create.php" var="actUrl"/>
<form:form method="POST" action="${actUrl}" modelAttribute="routeCreateUpdateModel">
<ul>
<li class="location">
<form:label path="fromZipcode" cssClass="title">Van<span class="required">*</span></form:label>
<span>
<form:input path="fromZipcode" cssClass="zipcode"/>
<form:label path="fromZipcode" cssClass="desc">Gemeente</form:label>
</span>
<span>
<form:input path="fromStreet" cssClass="street"/>
<form:label path="fromStreet" cssClass="desc">Straat</form:label>
</span>
<span>
<form:input path="fromStreetNr" cssClass="streetNr"/>
<form:label path="fromStreetNr" cssClass="desc">Nr</form:label>
</span>
</li>
<li class="location">
<form:label path="toZipcode" cssClass="title">Naar<span class="required">*</span></form:label>
<span>
<form:input path="toZipcode" cssClass="zipcode"/>
<form:label path="toZipcode" cssClass="desc">Gemeente</form:label>
</span>
<span>
<form:input path="toStreet" cssClass="street"/>
<form:label path="toStreet" cssClass="desc">Straat</form:label>
</span>
<span>
<form:input path="toStreetNr" cssClass="streetNr"/>
<form:label path="toStreetNr" cssClass="desc">Nr</form:label>
</span>
</li>
<li>
<form:label path="dateDay" cssClass="title">Datum<span class="required">*</span></form:label>
<span>
<tags:showDayPicker path="dateDay" currentDay="${routeCreateUpdateModel.dateDay}"/>
<form:label path="dateDay" cssClass="desc">dd</form:label>
</span>
<span>
<tags:showMonthPicker path="dateMonth" currentMonth="${routeCreateUpdateModel.dateMonth}"/>
<form:label path="dateMonth" cssClass="desc">mm</form:label>
</span>
<span>
<tags:showYearPicker path="dateYear" startYear="${routeCreateUpdateModel.dateYear}"
stopYear="${nextYear}"/>
<form:label path="dateYear" cssClass="desc">yyyy</form:label>
</span>
</li>
<li>
<form:label path="days" cssClass="title">Dagen<span class="required">*</span></form:label>
<span>
<form:checkbox path="days" value="1"/>
<form:label path="days" cssClass="desc">Ma</form:label>
</span>
<span>
<form:checkbox path="days" value="2"/>
<form:label path="days" cssClass="desc">Di</form:label>
</span>
<span>
<form:checkbox path="days" value="3"/>
<form:label path="days" cssClass="desc">Wo</form:label>
</span>
<span>
<form:checkbox path="days" value="4"/>
<form:label path="days" cssClass="desc">Do</form:label>
</span>
<span>
<form:checkbox path="days" value="5"/>
<form:label path="days" cssClass="desc">Vrij</form:label>
</span>
<span>
<form:checkbox path="days" value="6"/>
<form:label path="days" cssClass="desc">Za</form:label>
</span>
<span>
<form:checkbox path="days" value="7"/>
<form:label path="days" cssClass="desc">Zo</form:label>
</span>
</li>
<li>
<form:label path="stopDateDay" cssClass="title">Herhalen tot<span class="required">*</span></form:label>
<span>
<tags:showDayPicker path="stopDateDay" currentDay="${routeCreateUpdateModel.dateDay}"/>
<form:label path="stopDateDay" cssClass="desc">dd</form:label>
</span>
<span>
<tags:showMonthPicker path="stopDateMonth" currentMonth="${routeCreateUpdateModel.dateMonth}"/>
<form:label path="stopDateMonth" cssClass="desc">mm</form:label>
</span>
<span>
<tags:showYearPicker path="stopDateYear" startYear="${routeCreateUpdateModel.dateYear}"
stopYear="${nextYear}"/>
<form:label path="stopDateYear" cssClass="desc">yyyy</form:label>
</span>
</li>
<li>
<form:label path="departureTime" cssClass="title">Vertrek uur<span class="required">*</span></form:label>
<span>
<tags:showHourPicker path="departureTime"/>
<form:label path="departureTime" cssClass="desc">uu</form:label>
</span>
<span>
<tags:showMinutePicker path="departureTime"/>
<form:label path="departureTime" cssClass="desc">mm</form:label>
</span>
</li>
<li>
<form:label path="arrivalTime" cssClass="title">Aankomst uur<span class="required">*</span></form:label>
<span>
<tags:showHourPicker path="arrivalTime"/>
<form:label path="arrivalTime" cssClass="desc">uu</form:label>
</span>
<span>
<tags:showMinutePicker path="arrivalTime"/>
<form:label path="arrivalTime" cssClass="desc">mm</form:label>
</span>
</li>
<li>
<form:label path="car" cssClass="title">Auto</form:label>
<span>
<form:select path="car">
<form:options items="${cars}" itemLabel="carName" itemValue="Id" />
</form:select>
</span>
</li>
</ul>
<input type="submit" value="Route toevoegen"/>
</form:form>
</div>
</div>
如果您需要更多信息，请询问，我会立即提供。
再次感谢:)
【问题讨论】：
-
更新感谢您的快速响应！ :)
-
你的自定义标签（
tags:showMinutePicker等）是什么样子的？
标签： spring spring-mvc spring-security