解决extremeComponents中文按拼音排序问题
文章借鉴以下文章：
pinyin4j项目：http://pinyin4j.sourceforge.net/
extremeComponents排序实现不区分大小：http://www.blogjava.net/fastzch/archive/2006/04/07/39918.html
Java中文排序完美新解：http://blog.csdn.net/dada9407/article/details/2975622
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向工程中加入pinyin4j-2.5.0.jar(文末提供pinyin4j-2.5.0.jar和pinyin4j-2.5.0.zip)。
把pinyin4j-2.5.0.jar拷入WebRoot/WEB-INF/lib，并添加到classpath。
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在jsp页面标签中需指明排序所用的接口：sortRowsCallback="com.heer.MySortCallback"
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<ec:table tableId="statList"retrieveRowsCallback="limit"filterRowsCallback="limit"var="result"items="resultList"action="${pageContext.request.contextPath}/stat.do?method=${actionMethod}"title="统计结果"width="100%"rowsDisplayed="10"filterable="false"sortRowsCallback="com.heer.MySortCallback">?
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定义自己的Comparator类
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package com.heer;import java.text.Collator;import java.util.Comparator;import net.sourceforge.pinyin4j.PinyinHelper;import org.apache.commons.collections.comparators.NullComparator;public class MyComparator extends NullComparator {Collator collator = Collator.getInstance();public int compare(Object o1, Object o2) {String key1 = o1 == null ? "" : o1.toString();String key2 = o2 == null ? "" : o2.toString();if(isNumeric(key1)&&isNumeric(key2)){return (int) (Double.valueOf(key1)-Double.valueOf(key2));}else{for (int i = 0; i < key1.length() && i < key2.length(); i++) {int codePoint1 = key1.charAt(i);int codePoint2 = key2.charAt(i);if (Character.isSupplementaryCodePoint(codePoint1)|| Character.isSupplementaryCodePoint(codePoint2)) {i++;}if (codePoint1 != codePoint2) {if (Character.isSupplementaryCodePoint(codePoint1)|| Character.isSupplementaryCodePoint(codePoint2)) {return codePoint1 - codePoint2;}String pinyin1 = pinyin((char) codePoint1);String pinyin2 = pinyin((char) codePoint2);if (pinyin1 != null && pinyin2 != null) { // 两个字符都是汉字if (!pinyin1.equals(pinyin2)) {return pinyin1.compareTo(pinyin2);}} else {return codePoint1 - codePoint2;}}}}return key1.length() - key2.length();}private String pinyin(char c) {String[] pinyins = PinyinHelper.toHanyuPinyinStringArray(c);if (pinyins == null) {return null; // 如果转换结果为空，则返回null}return pinyins[0]; // 如果为多音字返回第一个音节}public static boolean isNumeric(String str) {int begin = 0;boolean once = true;if (str == null || str.trim().equals("")) {return false;}str = str.trim();if (str.startsWith("+") || str.startsWith("-")) {if (str.length() == 1) {// "+" "-"return false;}begin = 1;}for (int i = begin; i < str.length(); i++) {if (!Character.isDigit(str.charAt(i))) {if (str.charAt(i) == '.' && once) {// '.' can only onceonce = false;} else {return false;}}}if (str.length() == (begin + 1) && !once) {// "." "+." "-."return false;}return true;}}?
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?实现SortRowsCallback接口
package com.heer;import java.util.Collection;import java.util.Collections;import java.util.List;import org.apache.commons.beanutils.BeanComparator;import org.apache.commons.collections.comparators.ReverseComparator;import org.extremecomponents.table.bean.Column;import org.extremecomponents.table.callback.SortRowsCallback;import org.extremecomponents.table.core.TableConstants;import org.extremecomponents.table.core.TableModel;import org.extremecomponents.table.limit.Sort;public final class MySortCallback implements SortRowsCallback {public Collection sortRows(TableModel model, Collection rows)throws Exception {boolean sorted = model.getLimit().isSorted();if (!sorted) {return rows;}Sort sort = model.getLimit().getSort();String sortProperty = sort.getProperty();String sortOrder = sort.getSortOrder();Column column = model.getColumnHandler().getColumnByAlias(sortProperty);String property = column.getProperty();if (sortOrder.equals(TableConstants.SORT_ASC)) {BeanComparator comparator = new BeanComparator(property,new MyComparator());Collections.sort((List) rows, comparator);} else if (sortOrder.equals(TableConstants.SORT_DESC)) {BeanComparator reversedNaturalOrderBeanComparator = new BeanComparator(property, new ReverseComparator(new MyComparator()));Collections.sort((List) rows, reversedNaturalOrderBeanComparator);}return rows;}}?
这样常用汉字和非常用都会取汉字的汉语拼音，再按照英文字符的比较方法进行排序。
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