JSF-< h:commandButton>不会从支持Bean调用新窗口 [英] JSF- <h:commandButton> does not invoke new window from backing bean

问题描述

我的问题类似于此问题
我在XHTML中有一个，它调用backing bean方法来调用带有预构建URL的新窗口.但是我的问题是它没有打开URL.

MY issue is similar to this issue
I am having an in XHTML and it calls the backing bean method for invoking a new window with an pre constructed URL.But my problem is its not opening the URL.

我在XHTML中的代码在下面给出

My code in the XHTML is given below

 <h:commandButton  style="margin-left:1em;width: auto; height: 20px;font-size:85%"
value="WebPhone" id="lwebpne"rendered="#{Bean.editCmdActionflg == true and (Bean.selectedSearchSysDetRow.isfeed != '1'  or Bean.selectedOverviewDetails.webPheFlg == false)}"actionListener="#{Bean.webPhoneSearch}"   >
<f:param name="lpid" value="lpid" />
</h:commandButton>

---

而我的代码在后备豆

---

And my code given in the backing bean

public void webPhoneSearch(ActionEvent event) {
        logger.info("webPhoneSearch Method Enter ..");

        String param = "";

        Map<String, String> params = FacesContext.getCurrentInstance()
                .getExternalContext().getRequestParameterMap();

    if (params.get("lpid") != null) {
            System.out.println("coming inside>>>>>");
            // String t_lpid = params.get("lpid");
            String t_lpid = selectedOverviewDetails.getLeadPrgMgrUid();
            Matcher matcher = pattern.matcher(t_lpid);
            if (matcher.matches()) {
                param = "this values comes from UI ";
            }
        }
// below is a  URL where the window will launch to show the details of a person which we are search for
    Url = "http:// URL for searching a person in webphone" +param;
        RequestContext.getCurrentInstance().execute(
                "window.open('" + Url + "')");

        logger.info("webPhoneSearch Method Exit ..");

}<br/>

我的问题是想让<h:commandbutton>不能打开新窗口，而是当我单击<h:commandbutton>时在当前窗口中重新打开同一页面
请让我知道您提出的解决此问题的建议.

My problem is clikcing the <h:commandbutton> does not open a new window instead the same page reopens in the current window when I click the <h:commandbutton>
Please let me know your suggestions to resolve this issue.

推荐答案

如@Alexandre所说，< h:commandButton/>没有标记属性. 使用< h:commandLink/>

as @Alexandre say, <h:commandButton/> doesn't have taget attribute. use <h:commandLink/>

<h:commandLink target="_blank"
                 style="margin-left:1em;width: auto; height: 20px;font-size:85%"
                 value="WebPhone" id="lwebpne"
                 rendered="#{Bean.editCmdActionflg == true and (Bean.selectedSearchSysDetRow.isfeed != '1'  or Bean.selectedOverviewDetails.webPheFlg == false)}"
                 actionListener="#{Bean.webPhoneSearch}">
    <f:param name="lpid" value="lpid"/>
</h:commandLink>

---更新:---

如果要触发一些JavaScript事件，可以使用< f:ajax/>.我的样本如下.

if you want to trigger some javascript events you can use <f:ajax/>. my sample below.

<h:commandButton style="margin-left:1em;width: auto; height: 20px;font-size:85%"
                 value="WebPhone" id="lwebpne" rendered="#{Bean.editCmdActionflg == true and (Bean.selectedSearchSysDetRow.isfeed != '1'  or Bean.selectedOverviewDetails.webPheFlg == false)}">
    <f:ajax execute="@form" render="@form" listener="#{Bean.webPhoneSearch()}" onevent="eventListener"/>
</h:commandButton>
<h:outputScript>
    function eventListener(data) {
        if (data.status == "complete") {
            <!-- YOUR WINDOW ADDRESS HERE -->
            window.open('http://google.com', '_blank');
        }
    }
</h:outputScript>

但是我不建议使用弹出窗口.因为所有浏览器都将其阻止.我认为对话框框架或

but I don't advise to use popup window. because all of browsers block them. I think dialog framework or lightbox component can be more useful.

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