HiLog配置

为了方便调试，查看，先设置好Hilog

public static final HiLogLabel loglabel = new HiLogLabel(HiLog.LOG_APP,0x11102,"【xrilang】");

ZSONObject

//Json测试2：使用ZSONObject(官方)//  1.将总Json字符串转为一个ZSONObjectZSONObject zsonObject1 = ZSONObject.stringToZSON(str);// 2.将所需要的内容从ZSONObject对象中取出2.1 当所需要的内容是数组时// 2.1.1 将所需数组内容 从 ZSONObject 中取出来 转换为 ZSONArray 得到的是一个新JsonZSONArray result1 = zsonObject1.getZSONArray("lives");// 2.1.2 将这个新Json转为字符串输出看效果String result2 = result1.getString(0);HiLog.info(loglabel,"【ZSONObjec】result2::"+result2);【输出结果】 {"adcode":"130500","city":"邢台市","humidity":"98","province":"河北","reporttime":"2020-09-26 21:58:34","temperature":"17","weather":"多云","winddirection":"北","windpower":"≤3"}-------ZSONObject zsonObject2 = ZSONObject.stringToZSON(result2);-------2.2 当需要的内容是 普通数据类型时(例如String，int，double等)// 2.2.1 将所需内容取出，并存放在变量中,输出查看效果String  result3 = zsonObject2.getString("province");HiLog.info(loglabel,"【ZSONObjec】result3::"+result3);

HiJson(第三方)

获取与配置Json

获取HiJson

crazycodeboy/hijson: HiJson is a lightweight JSON parsing library that can be used for HarmonyOS, Android, and Java (github.com)

点击上方链接，复制如下图的红框内容

implementation 'org.devio.hi.json:hijson:1.0.0'

配置到项目文件中

HiJson使用

准备好一段Json

jsonString：{"status": "1","count": "1","info": "OK","infocode": "10000","lives": [{"province": "河北","city": "邢台市","adcode": "130500","weather": "多云","temperature": "17","winddirection": "北","windpower": "≤3","humidity": "98","reporttime": "2020-09-26 21:58:34"}]
}

导入HiJson包

import org.devio.hi.json.HiJson;

使用HiJson

//Json测试1：使用HiJson(第三方)HiJson hiJson = new HiJson(str).get("lives").get(0);String province = hiJson.value("province");String city = hiJson.value("city");HiLog.info(loglabel,"【HiJson】省市："+province+"  城市："+city);

执行结果

完整代码

MainAbility.java

package cc.mllt.eduxiancheng.slice;import cc.mllt.eduxiancheng.ResourceTable;
import ohos.aafwk.ability.AbilitySlice;
import ohos.aafwk.content.Intent;
import ohos.hiviewdfx.HiLog;
import ohos.hiviewdfx.HiLogLabel;
import ohos.utils.zson.ZSONArray;
import ohos.utils.zson.ZSONObject;
import org.devio.hi.json.HiJson;public class MainAbilitySlice extends AbilitySlice {String str = "{\n" +"    \"status\": \"1\",\n" +"    \"count\": \"1\",\n" +"    \"info\": \"OK\",\n" +"    \"infocode\": \"10000\",\n" +"    \"lives\": [\n" +"        {\n" +"            \"province\": \"河北\",\n" +"            \"city\": \"邢台市\",\n" +"            \"adcode\": \"130500\",\n" +"            \"weather\": \"多云\",\n" +"            \"temperature\": \"17\",\n" +"            \"winddirection\": \"北\",\n" +"            \"windpower\": \"≤3\",\n" +"            \"humidity\": \"98\",\n" +"            \"reporttime\": \"2020-09-26 21:58:34\"\n" +"        }\n" +"    ]\n" +"}";public static final HiLogLabel loglabel = new HiLogLabel(HiLog.LOG_APP,0x11102,"【xrilang】");@Overridepublic void onStart(Intent intent) {super.onStart(intent);super.setUIContent(ResourceTable.Layout_ability_main);//线程测试MyExecutor.runChild(new Runnable() {@Overridepublic void run() {HiLog.info(loglabel,"MyExecutor:在异步线程执行任务开始");//Json测试1：使用HiJson(第三方)HiJson hiJson = new HiJson(str).get("lives").get(0);String province = hiJson.value("province");String city = hiJson.value("city");HiLog.info(loglabel,"【HiJson】省市："+province+"  城市："+city);//Json测试2：使用ZSONObject(官方)//  1.将总Json字符串转为一个ZSONObjectZSONObject zsonObject1 = ZSONObject.stringToZSON(str);// 2.将所需要的内容从ZSONObject对象中取出2.1 当所需要的内容是数组时// 2.1.1 将所需数组内容 从 ZSONObject 中取出来 转换为 ZSONArray 得到的是一个新JsonZSONArray result1 = zsonObject1.getZSONArray("lives");// 2.1.2 将这个新Json转为字符串输出看效果String result2 = result1.getString(0);HiLog.info(loglabel,"【ZSONObjec】result2::"+result2);【输出结果】 {"adcode":"130500","city":"邢台市","humidity":"98","province":"河北","reporttime":"2020-09-26 21:58:34","temperature":"17","weather":"多云","winddirection":"北","windpower":"≤3"}-------ZSONObject zsonObject2 = ZSONObject.stringToZSON(result2);-------2.2 当需要的内容是 普通数据类型时(例如String，int，double等)// 2.2.1 将所需内容取出，并存放在变量中,输出查看效果String  result3 = zsonObject2.getString("province");HiLog.info(loglabel,"【ZSONObjec】result3::"+result3);HiLog.info(loglabel,"MyExecutor:在异步线程执行任务结束");MyExecutor.runMain(new Runnable() {@Overridepublic void run() {HiLog.info(loglabel,"MyExecutor:回到Main线程执行任务");}});}});}@Overridepublic void onActive() {super.onActive();}@Overridepublic void onForeground(Intent intent) {super.onForeground(intent);}
}

运行结果

MyExecutor.java

package cc.mllt.eduxiancheng.slice;import ohos.eventhandler.EventHandler;
import ohos.eventhandler.EventRunner;public class MyExecutor {/*** 切换任务到主线程执行* @param runnable*/public static void runMain(Runnable runnable) {//切换到主线程EventRunner runner = EventRunner.getMainEventRunner();EventHandler eventHandler = new EventHandler(runner);//执行任务eventHandler.postSyncTask(runnable);}/*** 在子线程执行任务* @param runnable*/public static void runChild(Runnable runnable) {//开启一个新线程EventRunner runner = EventRunner.create(true);EventHandler eventHandler = new EventHandler(runner);//执行任务eventHandler.postTask(runnable,0,EventHandler.Priority.IMMEDIATE);}
}

相关文章：【HarmonyOS】【多线程与并发】EventHandler - 萌狼蓝天 - 博客园 (cnblogs.com/mllt)