JSF- <h：commandButton> 不会从支持 bean 调用新窗口

Question

我的问题与此问题类似
我在XHTML中有一个，它调用backingbean方法，用预先构建的URL调用一个新窗口。但我的问题是它没有打开URL。

XHTML中的代码如下所示

---

 <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>

---

我的代码在backingbean中给出

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/>

我的问题是点击<h:commandbutton>不会打开新窗口，而是当我点击<h:commandbutton>时，同一页面会在当前窗口中重新打开
请告诉我你解决这个问题的建议。

Answer 1

正如@Alexandre所说，<h： 命令按钮/>不具有taget属性。使用<h： 命令链接/>

<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：---

如果您想触发一些javascript事件，可以使用<f： ajax/>。下面是我的样品。

<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>

但我不建议使用弹出窗口。因为所有的浏览器都会阻止它们。我认为对话框框架或灯箱组件可能更有用。