如何使用 JavaScript 从 JSF 页面的输入文本中提取值
大家好,我尝试使用 document.getElementById("someid") 从 JSF 页面的字段中提取值
,这是实际的代码
<h:form id="hell">
<h:panelGrid columns="12" border="0">
<h:outputLabel>Airlines</h:outputLabel>
<h:selectOneMenu value="#{planeMngr.PM.airline_no}" styleClass="inputbox" style="width:150px">
<f:selectItems value="#{projectUtil.airlineList}" var="AList" itemLabel="#{AList.name}" itemValue="#{AList.name}"/>
</h:selectOneMenu>
<h:outputLabel>Source</h:outputLabel>
<h:selectOneMenu value="#{planeMngr.PM.source}" styleClass="inputbox" style="width:150px">
<f:selectItems value="#{projectUtil.contyList}" var="RList" itemLabel="#{RList.country_Name}" itemValue="#{RList.country_Name}"/>
</h:selectOneMenu>
<h:outputLabel>Destination</h:outputLabel>
<h:selectOneMenu value="#{planeMngr.PM.destination}" styleClass="inputbox" style="width:150px">
<f:selectItems value="#{projectUtil.contyList}" var="RList" itemValue="#{RList.country_Name}"/>
</h:selectOneMenu>
<h:outputLabel>Departure Date</h:outputLabel>
<h:inputText id ="depday" value="#{planeMngr.PM.departure_date}" label="dd/mm/yyyy" >
<f:convertDateTime pattern="dd/MM/yyyy" dateStyle="full" ></f:convertDateTime>
</h:inputText>
<h:outputLabel>Departure Time </h:outputLabel>
<h:inputText id="deptime" value="#{planeMngr.PM.departure_time}" label="HH:MM" >
<f:convertDateTime pattern="HH:mm"></f:convertDateTime>
</h:inputText>
<h:outputLabel value="Status"/>
<h:selectOneMenu label="Status" value="#{planeMngr.PM.status}">
<f:selectItem itemLabel="PreFlight" itemValue="PreFlight" />
<f:selectItem itemLabel="Open" itemValue="Open" />
<f:selectItem itemLabel="Restricted CheckIn" itemValue="Restricted_CheckIn" />
<f:selectItem itemLabel="Restricted" itemValue="Restricted" />
<f:selectItem itemLabel="Closed" itemValue="Closed" />
<f:selectItem itemLabel="Released" itemValue="Released" />
</h:selectOneMenu>
</h:panelGrid>
<h:commandButton onclick="return datevalidate()" action="#{planeMngr.ADD}" value="save" ></h:commandButton>
</h:form>
,这是我的 JS 代码。我只是检查用户填写的字段中的值是什么。
function datevalidate()
{
var dat = document.getElementById("hell:deptime");
var day = document.getElementById("hell:depday");
alert(dat +" time "+day); // this gives "[object HTMLInputElement] time [object HTMLInputElement]" as an out put
return false;
}
告诉我我在这里做错了什么?
hello everyone i am try to extract value from the field of a JSF page using document.getElementById("someid")
here is the actual code
<h:form id="hell">
<h:panelGrid columns="12" border="0">
<h:outputLabel>Airlines</h:outputLabel>
<h:selectOneMenu value="#{planeMngr.PM.airline_no}" styleClass="inputbox" style="width:150px">
<f:selectItems value="#{projectUtil.airlineList}" var="AList" itemLabel="#{AList.name}" itemValue="#{AList.name}"/>
</h:selectOneMenu>
<h:outputLabel>Source</h:outputLabel>
<h:selectOneMenu value="#{planeMngr.PM.source}" styleClass="inputbox" style="width:150px">
<f:selectItems value="#{projectUtil.contyList}" var="RList" itemLabel="#{RList.country_Name}" itemValue="#{RList.country_Name}"/>
</h:selectOneMenu>
<h:outputLabel>Destination</h:outputLabel>
<h:selectOneMenu value="#{planeMngr.PM.destination}" styleClass="inputbox" style="width:150px">
<f:selectItems value="#{projectUtil.contyList}" var="RList" itemValue="#{RList.country_Name}"/>
</h:selectOneMenu>
<h:outputLabel>Departure Date</h:outputLabel>
<h:inputText id ="depday" value="#{planeMngr.PM.departure_date}" label="dd/mm/yyyy" >
<f:convertDateTime pattern="dd/MM/yyyy" dateStyle="full" ></f:convertDateTime>
</h:inputText>
<h:outputLabel>Departure Time </h:outputLabel>
<h:inputText id="deptime" value="#{planeMngr.PM.departure_time}" label="HH:MM" >
<f:convertDateTime pattern="HH:mm"></f:convertDateTime>
</h:inputText>
<h:outputLabel value="Status"/>
<h:selectOneMenu label="Status" value="#{planeMngr.PM.status}">
<f:selectItem itemLabel="PreFlight" itemValue="PreFlight" />
<f:selectItem itemLabel="Open" itemValue="Open" />
<f:selectItem itemLabel="Restricted CheckIn" itemValue="Restricted_CheckIn" />
<f:selectItem itemLabel="Restricted" itemValue="Restricted" />
<f:selectItem itemLabel="Closed" itemValue="Closed" />
<f:selectItem itemLabel="Released" itemValue="Released" />
</h:selectOneMenu>
</h:panelGrid>
<h:commandButton onclick="return datevalidate()" action="#{planeMngr.ADD}" value="save" ></h:commandButton>
</h:form>
here is my JS code. in which i am just checking what are the value in the field that is filled by user.
function datevalidate()
{
var dat = document.getElementById("hell:deptime");
var day = document.getElementById("hell:depday");
alert(dat +" time "+day); // this gives "[object HTMLInputElement] time [object HTMLInputElement]" as an out put
return false;
}
tell me what i am doing wrong here?
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在 JavaScript 中,要从 HTMLInputElement 获取值,请使用其值字段:
In JavaScript to get values from HTMLInputElement use its value field:
这是 jsf inputText 的一个小例子。现在我将编写 javascript 代码来获取上述 jsf 组件的值:
This is a small example of jsf inputText. Now I will write javascript code to get the value of the above jsf component: