模糊查询:有几种情况1.中文 2.连起来的拼音查询 3.首字母查询 需要一个jar包pinyin4j

工具类

package cn.clgate.atlas.util;import net.sourceforge.pinyin4j.PinyinHelper;import net.sourceforge.pinyin4j.format.HanyuPinyinCaseType;import net.sourceforge.pinyin4j.format.HanyuPinyinOutputFormat;import net.sourceforge.pinyin4j.format.HanyuPinyinToneType;import net.sourceforge.pinyin4j.format.HanyuPinyinVCharType;import net.sourceforge.pinyin4j.format.exception.BadHanyuPinyinOutputFormatCombination;import java.io.ByteArrayOutputStream;import java.io.File;import java.io.FileInputStream;import java.io.IOException;import java.util.ArrayList;import java.util.Hashtable;import java.util.List;import java.util.Map;/** * 调用工具包pinyin4j */public class PinyinUtil {    /**     * 汉字转换位汉语拼音首字母，英文字符不变，特殊字符丢失 支持多音字，生成方式如（长沙市长:cssc,zssz,zssc,cssz）     *     * @param chines汉字     *               * @return 拼音     */    public static String converterToFirstSpell(String chines) {        StringBuffer pinyinName = new StringBuffer();        char[] nameChar = chines.toCharArray();        HanyuPinyinOutputFormat defaultFormat = new HanyuPinyinOutputFormat();        defaultFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE);        defaultFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);        for (int i = 0; i < nameChar.length; i++) {            if (nameChar[i] > 128) {                try {                    // 取得当前汉字的所有全拼                    String[] strs = PinyinHelper.toHanyuPinyinStringArray(                            nameChar[i], defaultFormat);                    if (strs != null) {                        for (int j = 0; j < strs.length; j++) {                            // 取首字母                            pinyinName.append(strs[j].charAt(0));                            if (j != strs.length - 1) {                                pinyinName.append(",");                            }                        }                    }                    // else {                    // pinyinName.append(nameChar[i]);                    // }                } catch (BadHanyuPinyinOutputFormatCombination e) {                    e.printStackTrace();                }            } else {                pinyinName.append(nameChar[i]);            }            pinyinName.append(" ");        }        // return pinyinName.toString();        return parseTheChineseByObject(discountTheChinese(pinyinName.toString()));    }    /**     * 解析并组合拼音，对象合并方案(推荐使用)     *     * @return     */    private static String parseTheChineseByObject(        List<Map<String, Integer>> list) {        Map<String, Integer> first = null; // 用于统计每一次,集合组合数据        // 遍历每一组集合        for (int i = 0; i < list.size(); i++) {            // 每一组集合与上一次组合的Map            Map<String, Integer> temp = new Hashtable<String, Integer>();            // 第一次循环，first为空            if (first != null) {                // 取出上次组合与此次集合的字符，并保存                for (String s : first.keySet()) {                    for (String s1 : list.get(i).keySet()) {                        String str = s + s1;                        temp.put(str, 1);                    }                }                // 清理上一次组合数据                if (temp != null && temp.size() > 0) {                    first.clear();                }            } else {                for (String s : list.get(i).keySet()) {                    String str = s;                    temp.put(str, 1);                }            }            // 保存组合数据以便下次循环使用            if (temp != null && temp.size() > 0) {                first = temp;            }        }        String returnStr = "";        if (first != null) {            // 遍历取出组合字符串            for (String str : first.keySet()) {                returnStr += (str + ",");            }        }        if (returnStr.length() > 0) {            returnStr = returnStr.substring(0, returnStr.length() - 1);        }        return returnStr;    }    /**     * 去除多音字重复数据     *     * @param theStr     * @return     */    private static List<Map<String, Integer>> discountTheChinese(String theStr) {        // 去除重复拼音后的拼音列表        List<Map<String, Integer>> mapList = new ArrayList<Map<String, Integer>>();        // 用于处理每个字的多音字，去掉重复        Map<String, Integer> onlyOne = null;        String[] firsts = theStr.split(" ");        // 读出每个汉字的拼音        for (String str : firsts) {            onlyOne = new Hashtable<String, Integer>();            String[] china = str.split(",");            // 多音字处理            for (String s : china) {                Integer count = onlyOne.get(s);                if (count == null) {                    onlyOne.put(s, new Integer(1));                } else {                    onlyOne.remove(s);                    count++;                    onlyOne.put(s, count);                }            }            mapList.add(onlyOne);        }        return mapList;    }    /**     * 汉字转换位汉语全拼，英文字符不变，特殊字符丢失     * 支持多音字，生成方式如（重当参:zhongdangcen,zhongdangcan,chongdangcen     * ,chongdangshen,zhongdangshen,chongdangcan）     *     * @param chines     *            汉字     * @return 拼音     */    public static String converterToSpell(String chines) {        StringBuffer pinyinName = new StringBuffer();        char[] nameChar = chines.toCharArray();        HanyuPinyinOutputFormat defaultFormat = new HanyuPinyinOutputFormat();        defaultFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE);        defaultFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);        for (int i = 0; i < nameChar.length; i++) {            if (nameChar[i] > 128) {                try {                    // 取得当前汉字的所有全拼                    String[] strs = PinyinHelper.toHanyuPinyinStringArray(                            nameChar[i], defaultFormat);                    if (strs != null) {                        for (int j = 0; j < strs.length; j++) {                            pinyinName.append(strs[j]);                            if (j != strs.length - 1) {                                pinyinName.append(",");                            }                        }                    }                } catch (BadHanyuPinyinOutputFormatCombination e) {                    e.printStackTrace();                }            } else {                pinyinName.append(nameChar[i]);            }            pinyinName.append(" ");        }        // return pinyinName.toString();        return parseTheChineseByObject(discountTheChinese(pinyinName.toString()));    }

业务层:

//模糊查询public List<String> fuzzyQueryCity(String name,String pointType){    List<String> list = new ArrayList<String>();    Pattern p_str = Pattern.compile("[\\u4e00-\\u9fa5]+");    Matcher m = p_str.matcher(name);    //判断是否为汉字    if(m.find()&&m.group(0).equals(name)){
//汉字模糊查询        list = pointDataDODAO.fuzzyQueryCity(name, pointType);    }else{        //转小写        name = name.toLowerCase();        //根据类型来查出全部城市        List<String> list1 = pointDataDODAO.findCityByPointType(pointType);        ok:        for (String str: list1) {            String pinyin = PinyinUtil.converterToSpell(str);            if (name.length() == 1) {                if(pinyin.contains(",")){                    String[] split = pinyin.split(",");                    for (String split1:split) {                        if(split1.contains(name)&&split1.substring(0,1).equals(name.substring(0,1))){                            list.add(str);                            continue ok;                        }                    }                }else if(pinyin.substring(0,1).contains(name)){                    list.add(str);                }            }else if(name.equals("")){                list.add(str);            }else{                //多音字处理                if(pinyin.contains(",")){                    String[] split = pinyin.split(",");                    for (String split1:split) {                        if(split1.contains(name)&&split1.substring(0,1).equals(name.substring(0,1))){                            list.add(str);                            continue ok;                        }                    }                }                if (pinyin.contains(name)&&pinyin.substring(0,1).equals(name.substring(0,1))) {                    list.add(str);                } else {//如果找不到,就通过首字母查找                    //获取首字母                    String str2 = PinyinUtil.converterToFirstSpell(str);                    //多音字处理                    if(str2.contains(",")) {                        String[] split = str2.split(",");                        for (String split1 : split) {                            if (split1.contains(name) && split1.substring(0, 1).equals(name.substring(0, 1))) {                                list.add(str);                                continue ok;                            } else if (split1.contains(name)) {                                list.add(str);                            }                        }                    }                }            }        }    }    return list;}