//解析策略，有可能是解析json字符串，有可能为数据中的图片地址，email等 package cc.util.regex; public enum RegexPolicy {  Json("Json"),  Image("ImageFromHtml");  private String value;  RegexPolicy (String value) {   this.value = value;  }  @Override  public String toString() {   // TODO Auto-generated method stub   return value;  } } package cc.util.regex; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.regex.Matcher; import java.util.regex.Pattern; import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; import android.util.Log; /**  * A static Class help to Analyze data  * @author wangcccong  * @version 1.140122  * create at: 14-02-14  */ public class RegexUtil {  //与解析策略相匹配的正则表达式  //private static final String REGULAR_IMG_HTML = "<img +?src="(.+?)"";  private static final String REGULAR_JSON_ITEM_NAME = ""([^\" ]+?)":";  //private static final String REGULAR_JSON_ARRAY_NAME = ", *?" *?([a-zA-Z0-9]*?) *?" *?: *?\[ *?\{";         //公用方法解析，将字符串传入即可  public static Object regex(final RegexPolicy policy, final String data) {   switch (policy) {   case Json:    return regexJson(data);   case Image:    break;   default:    break;   }   return null;  }  /**   *      By recursively parse the Json string, obtain the Json string name by the regular expression,   * see also Matcher and Pattern and analysis of data. If the analytical data JsonObject object return key value pair (Map),   *  if JsonArray List is returned, otherwise it returns String.   *  <br><b>Notice:</b> if return Map you should better invoke map.get(null) to obtain value.   * @see {@link java.util.regex.Matcher}, {@link java.util.regex.Pattern}   * @param jsonStr   * @return {@link java.util.Map} or {@link java.util.List} or {@link java.lang.String}   */  private static Object regexJson(final String jsonStr) {   if (jsonStr == null) throw new NullPointerException("JsonString shouldn't be null");   try {    if (isJsonObject(jsonStr)) {     final Pattern pattern = Pattern.compile(REGULAR_JSON_ITEM_NAME);     final Matcher matcher = pattern.matcher(jsonStr);     final Map<String, Object> map = new HashMap<String, Object>();     final JSONObject jsonObject = new JSONObject(jsonStr);     for ( ; matcher.find(); ) {      String groupName = matcher.group(1);      Object obj = jsonObject.opt(groupName);      if (obj != null && isJsonArray(obj.toString()))       matcher.region(matcher.end() + obj.toString().replace("\", "").length(), matcher.regionEnd());      if (obj != null && !map.containsKey(groupName))       map.put(groupName, regexJson(obj.toString()));     }     return map;    } else if (isJsonArray(jsonStr)) {     List<Object> list = new ArrayList<Object>();     JSONArray jsonArray = new JSONArray(jsonStr);     for (int i = 0; i < jsonArray.length(); i++) {      Object object = jsonArray.opt(i);      list.add(regexJson(object.toString()));     }     return list;    }   } catch (Exception e) {    // TODO: handle exception    Log.e("RegexUtil--regexJson", e.getMessage()+"");   }   return jsonStr;  }  /**   * To determine whether a string is JsonObject {@link org.json.JSONObject}   * @param jsonStr {@link java.lang.String}   * @return boolean   */  private static boolean isJsonObject(final String jsonStr) {   if (jsonStr == null) return false;   try {    new JSONObject(jsonStr);    return true;   } catch (JSONException e) {    // TODO Auto-generated catch block    e.printStackTrace();    return false;   }  }  /**   * To determine whether a string is JsonArray {@link org.json.JSONArray};   * @param jsonStr {@link java.lang.String}   * @return boolean   */  private static boolean isJsonArray(final String jsonStr) {   if (jsonStr == null) return false;   try {    new JSONArray(jsonStr);    return true;   } catch (JSONException e) {    // TODO Auto-generated catch block    e.printStackTrace();    return false;   }  } } //使用方法 Object object = RegexUtil.regex(RegexPolicy.Json, jsonStr.substring(jsonStr.indexOf("{"),          jsonStr.lastIndexOf("}")+1));        if (object instanceof String) {         Log.e("string", object.toString());        } else if (object instanceof Map) {         @SuppressWarnings("unchecked")         HashMap<String, Object> map = (HashMap<String, Object>)object;         Iterator<Entry<String, Object>>  iterator = map.entrySet().iterator();         while (iterator.hasNext()) {          Entry<String, Object> entry = iterator.next();          if (entry.getValue() instanceof List) {           Log.e(entry.getKey(), entry.getValue().toString());          } else {           Log.e(entry.getKey(), entry.getValue().toString());          }         }        } else if (object instanceof List) {         Log.e("list", object.toString());        }