汉字按拼音排序

java中汉字按拼音排序
import java.util.Comparator;

class PinYinComparator implements Comparator<String> {

public int compare(String s1, String s2) {
return ((java.text.RuleBasedCollator)java.text.Collator.
getInstance(java.util.Locale.CHINA)).compare(s1, s2);
}
}


但是在GWT中不支持java.text...

改成这样

new Comparator<Object>() {
@Override
public int compare(Object o1, Object o2) {
return javascriptSort(o1, o2);
}

private native int javascriptSort(Object a, Object b)/*-{
return a.localeCompare(b);
}-*/;
}