【Java】json排序/根据key排序/不限层级/字母排序

一、需求

对JSON的key根据首字母排序 若首字母相同对比下一个字母 依次类推

二、效果

三、代码

maven

    <dependencies>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.79</version>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
            <version>3.1</version>
        </dependency>
    </dependencies>

代码

import com.alibaba.fastjson.JSONObject;

import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.Map;

/**
 * @Author: 维斯
 * @Date: 2022/6/30 14:55
 * @Description: Json排序工具
 * @Version: v1.0
 */
public class JsonSortUtil {
    /**
     * 对单词列表进行冒泡排序
     * 直接操作对象地址 无需返回
     *
     * @param words ["name","age"]
     */
    private static void wordSort(ArrayList<String> words) {
        for (int i = words.size() - 1; i > 0; i--) {
            for (int j = 0; j < i; j++) {
                if (words.get(j).compareToIgnoreCase(words.get(j + 1)) > 0) {
                    String temp = words.get(j);
                    words.set(j, words.get(j + 1));
                    words.set(j + 1, temp);
                }
            }
        }
    }

    /**
     * 对单层json排序
     *
     * @param json
     */
    private static JSONObject getAloneKeys(JSONObject json) {
        ArrayList<String> aloneKeys = new ArrayList<>();
        for (String key : json.keySet()) {
            aloneKeys.add(key);
        }
        // 排序
        JsonSortUtil.wordSort(aloneKeys);
        // 整理排序后的json
        JSONObject newJson = new JSONObject(new LinkedHashMap<>());
        for (String key : aloneKeys) {
            newJson.put(key, json.get(key));
        }
        return newJson;
    }

    /**
     * 递归每一层（当前是判断下一层是JSONObject类型的场景）
     *
     * @param json
     * @return
     */
    private static JSONObject getAloneKeysRec(JSONObject json) {
        JSONObject newJson = getAloneKeys(json);

        for (Map.Entry<String, Object> entry : newJson.entrySet()) {
            // JSONObject类型
            if (entry.getValue().getClass().equals(JSONObject.class)) {
                newJson.put(entry.getKey(), getAloneKeysRec((JSONObject) entry.getValue()));
            }
        }

        return newJson;
    }

    /**
     * 对JSONObject的key根据首字母排序 若首字母相同对比下一个字母 依次类推
     * 备注：当前未覆盖JSONArray的场景
     *
     * @param json
     * @return 排序后的新json
     */
    public static JSONObject startSort(JSONObject json) {
        // 第1层
        JSONObject jsonAlone = getAloneKeys(json);
        // 第2-n层
        for (Map.Entry<String, Object> entry : jsonAlone.entrySet()) {
            // 这里仅判断JSONObject类型的场景（若需要覆盖JSONArray场景 对应添加即可）
            if (entry.getValue().getClass().equals(JSONObject.class)) {
                jsonAlone.put(entry.getKey(), getAloneKeysRec((JSONObject) entry.getValue()));
            }
        }
        return jsonAlone;
    }


    public static void main(String[] args) {
        String jsonStr = "{\"code\":200,\"message\":\"success\",\"data\":{\"bate\":\"bate值\",\"baae\":{\"case\":\"case值\",\"casa\":{\"ask\":\"ask值\",\"bsk\":{\"abcdefghijklmn\":\"abcdefghijklmn值\",\"abcdefghijklma\":\"abcdefghijklma值\"}}}}}\n";
        System.out.println(String.format("排序前：%s", jsonStr));
        System.out.println(String.format("排序后：%s", JsonSortUtil.startSort((JSONObject) JSONObject.parse(jsonStr))));
    }

}

四、测试数据

以下是乱序的json

json1
{"rgubr":"rgubr值","rgubb":{"wenqo":"wenqo值","cwnnr":"cwnnr值","vkpid":"vkpid值","rwula":{"ieeho":"ieeho值","ujvwa":{"ismuo":"ismuo值","eydil":"eydil值","emkfm":"emkfm值","cksdv":{"aaaaa":"aaaaa值","bceef":"bceef值","bcdef":"bcdef值","acbdf":"acbdf值","acbde":"acbde值"},"viriy":"viriy值"},"corby":"corby值","tljbn":"tljbn值","fvjtd":"fvjtd值"},"xdfmy":"xdfmy值"},"lrirp":"lrirp值","ttaae":"ttaae值","nefab":"nefab值"}

json2
{"code":200,"message":"sucess","data":{"id":1885,"recordType":2,"isSelfSeat":1,"isRemote":1,"isScene":1,"virtualSeatBid":1,"isHead":1,"screenPosition":2,"isBroadCast":1,"speechSpeed":1.0,"remoteVoiceType":3,"isBaseCheck":1,"isForceCheck":0,"isAuditionTest":1,"isForceDebug":0,"paraGraph":2,"isPersonQuality":1,"processBid":12461,"bid":2885,"status":0,"createId":11636,"updateId":11636,"updateTime":"2022-06-16 10:50:48","createTime":"2022-06-13 16:57:51","merchantVirtualPortrait":{"bid":1,"status":1,"merchantBid":0,"name":"女坐席","anchorType":"单人主播","speechRate":100,"volume":50,"voice":3,"sex":2,"ttsText":"这是测试女生tts语音","virtualPortraitFiles":""},"isGeneralRule":1,"isSelfSeatLocation":1,"isRemoteLocation":1,"isSceneLocation":1,"isFaceLocation":0,"isVirtualSeat":1,"watermarkSwitch":1,"watermarkRecordingBid":25,"watermarkSynthesisBid":26,"watermarkRecording":{"bid":25,"name":"录制时-图片水印","type":2,"text":"","position":1,"transparency":100,"fileId":"2b5c68ce85d74f0ebd16a4e428e63e18","sourceFileId":"b007bf9c97b54557a3fcd5c9fc4f483f","applyStage":1,"waterDate":2,"fontSize":14,"fontColor":"#000000","horizontalOffset":15,"verticalOffset":15,"width":120,"height":80},"watermarkSynthesis":{"bid":26,"name":"合成-图片","type":2,"text":"","position":1,"transparency":100,"fileId":"672b8f50a9d34da0b0c3c8fafb27e39b","sourceFileId":"9de58743be514e68af24a9d92d348e88","applyStage":2,"waterDate":2,"fontSize":14,"fontColor":"#000000","horizontalOffset":15,"verticalOffset":15,"width":120,"height":80}},"success":true}

json3
{"code":200,"message":"sucess","data":{"id":1885,"recordType":2,"merchantVirtualPortrait":{"bid":1,"status":1,"merchantBid":0,"name":"女坐席","anchorType":"单人主播","datab":{"datac":{"datac":{"ssa":"asdf","asdfa":{"asdfa":"asdfas","asdfdfasd":{"asdf":"asdfasf"}}}}},"databb":"databb"}},"isGeneralRule":1,"isSelfSeatLocation":1,"isRemoteLocation":1,"isSceneLocation":1,"isFaceLocation":0,"isVirtualSeat":1,"watermarkSwitch":1,"watermarkRecordingBid":25,"watermarkSynthesisBid":26,"success":true}

json4
{"code":200,"message":"success","data":{"bate":"bate值","baae":{"case":"case值","casa":{"ask":"ask值","bsk":{"abcdefghijklmn":"abcdefghijklmn值","abcdefghijklma":"abcdefghijklma值"}}}}}