rich：自动完成前缀
我正在测试自动完成组件，但我不明白如何将前缀（用作搜索输入）传递给 bean。 这是我的代码：
page:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:a4j="http://richfaces.org/a4j"
xmlns:rich="http://richfaces.org/rich"
xmlns:t="http://myfaces.apache.org/tomahawk">
<f:loadBundle basename="resources.application" var="msg" />
<h:head>
<title>Test page
</title>
</h:head>
<h:body>
<rich:panel style="height:500px;overflow:auto">
<rich:autocomplete mode="cachedAjax" tokens=", " minChars="1"
autofill="false"
autocompleteMethod="#{comuniBean.autocomplete}" />
</rich:panel>
</h:body>
</html>
Bean:
package it.ubi.test.bean;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
public class ComuniBean implements Serializable{
private static final long serialVersionUID = 1L;
private ArrayList<String> comuniList;
public void init() {
comuniList = new ArrayList<String>();
comuniList.add("Brescia (BS)");
comuniList.add("Milano (MI)");
comuniList.add("Bergamo (BG)");
}
public List<String> autocomplete(String prefix) {
ArrayList<String> result = new ArrayList<String>();
if ((prefix == null) || (prefix.length() == 0)) {
comuniList = new ArrayList<String>();
comuniList.add("Brescia (BS)");
comuniList.add("Milano (MI)");
comuniList.add("Bergamo (BG)");
result = comuniList;
} else {
Iterator<String> iterator = comuniList.iterator();
while (iterator.hasNext()) {
String elem = iterator.next();
if ((elem.toLowerCase().indexOf(prefix.toLowerCase()) == 0)
|| "".equals(prefix)) {
result.add(elem);
}
}
}
return result;
}
}
“前缀”变量始终为空。有人可以解释如何获取前缀值吗？
I'm testing the autocomplete component, but I don't understand how prefix (used as search input) is passed to the bean.
Here my code:
page:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:a4j="http://richfaces.org/a4j"
xmlns:rich="http://richfaces.org/rich"
xmlns:t="http://myfaces.apache.org/tomahawk">
<f:loadBundle basename="resources.application" var="msg" />
<h:head>
<title>Test page
</title>
</h:head>
<h:body>
<rich:panel style="height:500px;overflow:auto">
<rich:autocomplete mode="cachedAjax" tokens=", " minChars="1"
autofill="false"
autocompleteMethod="#{comuniBean.autocomplete}" />
</rich:panel>
</h:body>
</html>
Bean:
package it.ubi.test.bean;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
public class ComuniBean implements Serializable{
private static final long serialVersionUID = 1L;
private ArrayList<String> comuniList;
public void init() {
comuniList = new ArrayList<String>();
comuniList.add("Brescia (BS)");
comuniList.add("Milano (MI)");
comuniList.add("Bergamo (BG)");
}
public List<String> autocomplete(String prefix) {
ArrayList<String> result = new ArrayList<String>();
if ((prefix == null) || (prefix.length() == 0)) {
comuniList = new ArrayList<String>();
comuniList.add("Brescia (BS)");
comuniList.add("Milano (MI)");
comuniList.add("Bergamo (BG)");
result = comuniList;
} else {
Iterator<String> iterator = comuniList.iterator();
while (iterator.hasNext()) {
String elem = iterator.next();
if ((elem.toLowerCase().indexOf(prefix.toLowerCase()) == 0)
|| "".equals(prefix)) {
result.add(elem);
}
}
}
return result;
}
}
The "prefix" variable is always null. Can somebody explain how to get the prefix value?
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我找到了这个问题的解决方案：
标签必须在标签内
I found solution for this porblem:
tag must be inside tag