我有一个 js 函数codeAddress()，它通过 google maps javascript api 完成一个地址并设置一个全局 js-variable valid = true，如果完整地址被识别的话。它还<p:inputText>用完整的地址更新 a 的值。
现在我有一个<p:commandButton>我想要的
- 执行
codeAddress() - 如果
valid = true提交表单，<p:inputText>则地址保存在addressBean和 - 导航到下一页
- 如果
valid = false触发 jsf-validator 消息
不幸的是，我的设置仍然不能valid作为确定下一页的基本值。看来，该值提交给 bean 为时已晚。
这是我的jsf代码：
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:p="http://primefaces.org/ui">
<h:head>
<script src="https://maps.googleapis.com/maps/api/js?v=3&sensor=false"></script>
</h:head>
<h:body>
<h:outputScript name="jsf.js" library="javax.faces" target="head"/>
<h:outputScript library="js" name="bugMaps.js" />
<body onload="initialize()" />
<h:form id="addressForm" onsubmit="codeAddress();">
<p:inputText id="address" required="true"
validatorMessage="Please enter a valid address." validator="#{addressBean.validate()}">
<p:ajax update=":addressForm:addressValidate" />
</p:inputText>
<h:message id="addressValidate" for=":addressForm:address"/>
<p:commandButton value="submit"
onclick="codeAddress();"/>
<p:inputText id="fullAddress" value="#{addressBean.fullAddress}" />
<p:inputText id="valid" value="#{addressBean.valid}" />
</h:form>
</h:body>
</html>
这是 bugMaps.js：
var geocoder;
var map;
var valid;
function initialize() {
geocoder = new google.maps.Geocoder();
}
function codeAddress() {
var address = (document.getElementById('addressForm:address').value + ", Germany");
geocoder.geocode({'address' : address},function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
var latLong = results[0].geometry.location;
var latitude = results[0].geometry.location.lat();
var longitude = results[0].geometry.location.lng();
var country, postal_code, locality, street_number, route;
for (i = 0; i < results[0].address_components.length; ++i) {
var component = results[0].address_components[i];
if (!locality && component.types.indexOf("locality") > -1)
locality = component.long_name;
else if (!postal_code && component.types.indexOf("postal_code") > -1)
postal_code = component.long_name;
else if (!country && component.types.indexOf("country") > -1)
country = component.long_name;
else if (!street_number && component.types.indexOf("street_number") > -1)
street_number = component.long_name;
else if (!route && component.types.indexOf("route") > -1)
route = component.long_name;
}
if (typeof latLong != "undefined"
&& typeof latitude != "undefined"
&& typeof longitude != "undefined"
&& typeof route != "undefined"
&& typeof street_number != "undefined"
&& typeof postal_code != "undefined"
&& typeof locality != "undefined"
&& typeof country != "undefined"){
valid = true;
}
else{
valid=false;
};
document.getElementById('addressForm:fullAddress').value = results[0].formatted_address;
jsfSubmit();
}
else{
alert('Geocode was not successful for the following reason: '+ status);
valid=false;
}
});
};
function navigateToAnotherPage(data){
if(valid){
document.location.href='nextPage.xhtml';
}
};
function jsfSubmit(){
jsf.ajax.request(this, event, {execute:"@form", onevent:navigateToAnotherPage});
alert("nothing"); // FIXME: without this useful alert bean keeps old values and display them on nextPage
};
这是我的 AddressBean.java：
package hoho.main.managebean;
import java.io.Serializable;
import javax.enterprise.context.SessionScoped;
import javax.faces.application.FacesMessage;
import javax.faces.component.UIComponent;
import javax.faces.component.UIInput;
import javax.faces.context.FacesContext;
import javax.faces.validator.ValidatorException;
import javax.inject.Named;
import com.sun.faces.util.MessageFactory;
@Named
@SessionScoped
public class AddressBean implements Serializable {
private static final long serialVersionUID = 1L;
private String fullAddress;
private boolean valid = false;
public void validate(FacesContext context,
UIComponent toValidate, Object value) {
if(!valid){
String client = toValidate.getClientId(context);
FacesMessage msg = MessageFactory.getMessage(UIInput.REQUIRED_MESSAGE_ID, client);
throw new ValidatorException(msg);
}
}
public String getFullAddress() {
return fullAddress;
}
public void setFullAddress(String fullAddress) {
this.fullAddress = fullAddress;
}
public boolean isValid() {
return valid;
}
public void setValid(boolean valid) {
this.valid = valid;
}
}
这是 nextPage.xhtml：
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:p="http://primefaces.org/ui">
<h:head>
</h:head>
<h:body>
<h:outputText value="#{addressBean.fullAddress}" />
</h:body>
</html>