/*** 按ASCII碼給json對象排序（規(guī)定：升序）* @param json* @return*/public static String sortAsciiJson(String json){String res = "";try {JSONObject jsonObject = new JSONObject(json);ArrayList<String> nameList = new ArrayList<>();Iterator keys = jsonObject.keys();while(keys.hasNext()) {String key = keys.next().toString();nameList.add(key);}//key排序，升序Collections.sort(nameList); // Collections.sort(nameList,new ASCIICompartor());StringBuffer sb = new StringBuffer();sb.append("{");for (int i = 0; i < nameList.size(); i++) {String name = nameList.get(i);String value = jsonObject.getString(name);if(i != 0)sb.append(",");//添加鍵值對，區(qū)分字符串與json對象if(value.startsWith("{")||value.startsWith("[")){sb.append(String.format("\"%s\":%s",name,value));}else{sb.append(String.format("\"%s\":\"%s\"",name,value));}}sb.append("}");res = sb.toString();} catch (JSONException e) {e.printStackTrace();return "";}return res;}

重寫排序類，升序

import java.util.Comparator;public class ASCIICompartor implements Comparator<String> {@Overridepublic int compare(String o1, String o2) {return o1.compareTo(o2);} }

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