今天客戶提出一個需求：就是讓下拉框的內容按拼音排序，本人就從網上找了一個例子，也已經驗證通過，故分享一下！

     首先在網上下載一個：pinyin4j-2.5.0.jar的jar包，

    然後新建一個CompareNamePinyin類：

package util;

import java.util.Comparator;

import net.sourceforge.pinyin4j.PinyinHelper;
import cn.com.picc.innerControl.commonModle.domain.ComDepartment;

public class CompareNamePinyin implements Comparator<Object>{

 public int compare(Object obj1, Object obj2) {
  ComDepartment dept1 = (ComDepartment)obj1;
  ComDepartment dept2 = (ComDepartment)obj2;
        String o1 = dept1.getDeptName();
        String o2 = dept2.getDeptName();
       
        for (int i = 0; i < o1.length() && i < o2.length(); i++) {
            char c1 = o1.charAt(i);
            char c2 = o2.charAt(i);

            String pinyin1 = pinyin(c1);
            String pinyin2 = pinyin(c2);

            if (pinyin1 != null && pinyin2 != null) {

                if (!pinyin1.equals(pinyin2)) {
                    return pinyin1.compareTo(pinyin2);
                }
            } else {
                if (c1 != c2) {
                    return c1 - c2;
                }
            }
        }
       
        return o1.length() - o2.length();
    }
 
 private String pinyin(char c) {
        //返回該字的漢語拼音數字，如“王”字返回：[wang2, wang4]
        // 說明該字有兩種讀法，分別為wang2，第二聲，wang4，第四聲
        String[] a = PinyinHelper.toHanyuPinyinStringArray(c);
        if (a == null){
            return null;
        }
        return a[0];
    }

}

最後呼叫此方法就行：

//查詢出所有總公司下的部門  並按照拼音排序
  tbDepartmentList = comDepartmentService.findSubComDepartmentList("2012062522193606093v1j8","1");
  Collections.sort(tbDepartmentList, new CompareNamePinyin());