/*** 解析多层次Json字符串,封装多层Json，避免字符串中有特殊字符而出现的错误 * @author wangcccong * @version 1.140122* create at： Fri, 13 Jun 2014* update at: Mon, 1 Sep 2014*/
public class JsonUtil {private final static String regex = "\"([^\\\" ]+?)\":";/*** 一个方法解析多层json数据  json + 正则 + 递归* @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}*/public static Object jsonParse(final String jsonStr) {if (jsonStr == null) throw new NullPointerException("JsonString shouldn't be null");try {if (isJsonObject(jsonStr)) {final Pattern pattern = Pattern.compile(regex);final Matcher matcher = pattern.matcher(jsonStr);final Map<String, Object> map = new HashMap<String, Object>();final JSONObject jsonObject = new JSONObject(jsonStr);try {for (; matcher.find(); ) {String groupName = matcher.group(1);Object obj = jsonObject.opt(groupName);//Log.e(groupName, obj+"");if (isJsonObject(obj+"") || isJsonArray(obj+"")) {matcher.region(matcher.end() + (obj+"").replace("\\", "").length(), matcher.regionEnd());map.put(groupName, jsonParse(obj+""));} else {map.put(groupName, obj+"");}}} catch (Exception e) {// TODO: handle exceptionLog.e("object---error", e.getMessage()+"--"+e.getLocalizedMessage());}return map;} else if (isJsonArray(jsonStr)) {List<Object> list = new ArrayList<Object>();try {JSONArray jsonArray = new JSONArray(jsonStr);for (int i = 0; i < jsonArray.length(); i++) {Object object = jsonArray.opt(i);list.add(jsonParse(object+""));}} catch (Exception e) {// TODO: handle exceptionLog.e("array---error", e.getMessage()+"--"+e.getLocalizedMessage());}return list;} } catch (Exception e) {// TODO: handle exceptionLog.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;return Pattern.matches("^\\{.*\\}$", jsonStr.trim());}/*** To determine whether a string is JsonArray {@link org.json.JSONArray};* @param jsonStr {@link java.lang.String}* @return boolean*/private static boolean isJsonArray(final String jsonStr) {if (jsonStr == null) return false;return Pattern.matches("^\\[.*\\]$", jsonStr.trim());}/*** 将对象分装为json字符串 (json + 递归)* @param obj 参数应为{@link java.util.Map} 或者 {@link java.util.List}* @return*/@SuppressWarnings("unchecked")public static Object jsonEnclose(Object obj) {try {if (obj instanceof Map) {   //如果是Map则转换为JsonObjectMap<String, Object> map = (Map<String, Object>)obj;Iterator<Entry<String, Object>> iterator = map.entrySet().iterator();JSONStringer jsonStringer = new JSONStringer().object();while (iterator.hasNext()) {Entry<String, Object> entry = iterator.next();jsonStringer.key(entry.getKey()).value(jsonEnclose(entry.getValue()));}JSONObject jsonObject = new JSONObject(new JSONTokener(jsonStringer.endObject().toString()));return jsonObject;} else if (obj instanceof List) {  //如果是List则转换为JsonArrayList<Object> list = (List<Object>)obj;JSONStringer jsonStringer = new JSONStringer().array();for (int i = 0; i < list.size(); i++) {jsonStringer.value(jsonEnclose(list.get(i)));}JSONArray jsonArray = new JSONArray(new JSONTokener(jsonStringer.endArray().toString()));return jsonArray;} else {return obj;}} catch (Exception e) {// TODO: handle exceptionLogUtil.e("jsonUtil--Enclose", e.getMessage());return e.getMessage();}}}//解析时使用示例
Object object = JsonUtil.jsonParse(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());}//封装时使用示例
Map<String, Object> map = new HashMap<String, Object>();map.put("returnCode", "0");map.put("returnMsg", "成功");List<Map<String, Object>> list = new ArrayList<Map<String,Object>>(); Map<String, Object> listMap = new HashMap<String, Object>();listMap.put("test", "测试");listMap.put("fuck", "fuck");list.add(listMap);list.add(listMap);map.put("returnStatus", list);LogUtil.e("fuck", JsonUtil.jsonEnclose(map).toString()+"---");
//封装时结果
{"returnCode":"0","returnStatus":[{"test":"测试","fuck":"fuck"},{"test":"测试","fuck":"fuck"}],"returnMsg":"成功"}---