- import java.util.ArrayList;
- import java.util.HashMap;
- import java.util.Iterator;
- import java.util.List;
- import java.util.Map;
- import java.util.Map.Entry;
- import java.util.regex.Matcher;
- import java.util.regex.Pattern;
- import org.json.JSONArray;
- import org.json.JSONObject;
- import org.json.JSONStringer;
- import org.json.JSONTokener;
- import cc.util.android.core.LogUtil;
- import android.util.Log;
- /**
- * 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 exception
- Log.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 exception
- Log.e("array---error", e.getMessage()+"--"+e.getLocalizedMessage());
- }
- 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;
- 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JsonObject
- Map<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JsonArray
- List<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 exception
- LogUtil.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"}---
- //该片段来自于http://www.codesnippet.cn/detail/2511201514085.html
来源: http://www.codesnippet.cn/detail/2511201514085.html