Java 如何检查特定的键和值在JSONArray中是否可用
我有一个JSONArray，我需要获取这个JSONArray中是否有特定的键值。比方说，我有一个特定的键值对，比如当前就业状态：False，我需要验证这个键值对在我的JSONArray中是否可用。我的JSONArray如下：Java 如何检查特定的键和值在JSONArray中是否可用,java,json,Java,Json,我有一个JSONArray，我需要获取这个JSONArray中是否有特定的键值。比方说，我有一个特定的键值对，比如当前就业状态：False，我需要验证这个键值对在我的JSONArray中是否可用。我的JSONArray如下： [ { "last_seen":1557908766238, "distinct_id":"11cb639f-cbf7-499c- a1cf-e3ff4466a093", "time":1557908766238, "p
[
{
"last_seen":1557908766238,
"distinct_id":"11cb639f-cbf7-499c- a1cf-e3ff4466a093",
"time":1557908766238,
"properties":{
"$browser_version":74,
"$name":"Jessica Claire",
"$timezone":"Asia/Kolkata",
"$os":"Windows",
"$email":"19_05_15_135529631_ebMPR@email-qa.livecareer.com",
"$initial_referring_domain":"$direct",
"userid":"11cb639f-cbf7-499c-a1cf-e3ff4466a093",
"$first_name":"Jessica",
"Current Employment Status":"FALSE",
"enter builder":1,
"fedex experience":"FALSE",
"ResumeTips Permission":"TRUE",
"id":"11cb639f-cbf7-499c-a1cf-e3ff4466a093",
"LCNews Permission":"TRUE",
"Document Creation Mode":"scratch",
"Email Valid":"False",
"$last_name":"Claire",
"Payment Status":"Not Started",
"Work Experience Modal":"TRUE",
"$city":"Noida",
"Subscription Status":"FALSE",
"Job Alerts Permission":"TRUE",
"sign up":1,
"$browser":"Chrome",
"userId":"11cb639f-cbf7-499c-a1cf-e3ff4466a093",
"$country_code":"IN",
"$region":"Uttar Pradesh",
"One Time Purchase":"FALSE",
"$last_seen":"2019-05-15T08:26:06.000Z",
"Last enter builder":"2019-05-15T08:24:01.000Z",
"Last sign up":"2019-05-15T08:26:03.000Z",
"$initial_referrer":"$direct",
"EduOps Permission":"TRUE"
},
"labels":[
]
}
]
如果存在，它应该打印true，如果不存在，它应该打印false。我使用jar将字符串解析为JSon
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.json.simple.parser.JSONParser;
import org.json.simple.parser.ParseException;
public class test {
public static void main(String[] args) {
String temp = "[{\"last_seen\":1557908766238,\"distinct_id\":\"11cb639f-cbf7-499c- "
+ "a1cf-e3ff4466a093\",\"time\":1557908766238,\"properties\": {\"$browser_version\":74,"
+ " \" $name\":\"Jessica Claire\",\"$timezone\":\"AsiaKolkata\","
+ "\"$os\":\"Windows\",\"$email\":\"19_05_15_135529631_ebMPR@email-qa.livecareer.com\",\"$initial_referring_domain\":\"$direct\",\"userid\":\"11cb639f-cbf7-499c-a1cf-e3ff4466a093\",\"$first_name\":\"Jessica\",\"Current Employment Status\":\"FALSE\",\"enter builder\":1,\"fedex experience\":\"FALSE\",\"ResumeTips Permission\":\"TRUE\",\"id\":\"11cb639f-cbf7-499c-a1cf-e3ff4466a093\",\"LCNews Permission\":\"TRUE\",\"Document Creation Mode\":\"scratch\",\"Email Valid\":\"False\",\"$last_name\":\"Claire\",\"Payment Status\":\"Not Started\",\"Work Experience Modal\":\"TRUE\",\"$city\":\"Noida\",\"Subscription Status\":\"FALSE\",\"Job Alerts Permission\":\"TRUE\",\"sign up\":1,\"$browser\":\"Chrome\",\"userId\":\"11cb639f-cbf7-499c-a1cf-e3ff4466a093\",\"$country_code\":\"IN\",\"$region\":\"Uttar Pradesh\",\"One Time Purchase\":\"FALSE\",\"$last_seen\":\"2019-05-15T08:26:06.000Z\",\"Last enter builder\":\"2019-05-15T08:24:01.000Z\",\"Last sign up\":\"2019-05-15T08:26:03.000Z\",\"$initial_referrer\":\"$direct\",\"EduOps Permission\":\"TRUE\"},\"labels\":[]}]";
String findkeyvalue = "Current Employment Status:False";
boolean flag = FindValue(temp , findkeyvalue);
System.out.println(flag);
}
private static boolean FindValue(String temp, String findkeyvalue) {
try {
JSONParser jsonParser = new JSONParser();
JSONArray array = (JSONArray) jsonParser.parse(temp);
for (int i = 0; i < array.size(); i++) {
System.out.println(array.get(i).toString());
return travertillLast(array.get(i).toString() , findkeyvalue);
}
} catch (Exception e) {
return false;
}
return false;
}
private static boolean travertillLast(String string, String findkeyvalue) throws ParseException {
JSONParser jsonParser = new JSONParser();
JSONObject jsonObj = (JSONObject) jsonParser.parse(string);
System.out.println(jsonObj);
for (Object key : jsonObj.keySet()) {
//based on you key types
String keyStr = (String)key;
Object keyvalue = jsonObj.get(keyStr);
//Print key and value
String keyandValuue = keyStr + ":" + keyvalue;
System.out.println(keyandValuue);
if(keyandValuue.trim().equalsIgnoreCase(findkeyvalue)){
return true;
}
//for nested objects iteration if required
if (keyvalue instanceof JSONObject)
return travertillLast(keyvalue+"",findkeyvalue);
}
return false;
// TODO Auto-generated method stub
}
}
import org.json.simple.JSONArray；
导入org.json.simple.JSONObject；
导入org.json.simple.parser.JSONParser；
导入org.json.simple.parser.ParseException；
公开课考试{
公共静态void main（字符串[]args）{
String temp=“[{”last\u seen\”：1557908766238，“distinct\u id\”：\“11cb639f-cbf7-499c-
+“a1cf-e3ff4466a093\，”时间\“：1557908766238，\”属性\“：{\“$browser\u version\”：74，”
+“\“$name\”：\“Jessica Claire\”，“$timezone\”：“AsiaKolkata\”，”
+“\$os\”：“Windows\”，“$email\”：\“19\u 05\u 15\u 135529631_ebMPR@email-qa.livecareer.com\“，“$initial\”引用域\“：“$direct\”，“userid\”：“11cb639f-cbf7-499c-a1cf-e3ff4466a093\”，“$first\”：“Jessica\”，“当前就业状态\”“FALSE\”，“enter builder\”：1，“联邦快递体验\”“FALSE\”，“简历提示权限\”“TRUE\”，“id\：”11cb639f-cbf7-499c-a1cf-e3ff4466a093\”，“LCNews权限”：“TRUE\”，“文档创建模式”：“scratch\”，“电子邮件有效”：“False\”，“$last\”：“Claire\”，“付款状态”：“未启动”，“工作体验模式”：“TRUE\”，“$city\”：“Noida\”，“订阅状态”：“False\”，“工作通知权限”：“注册”：“TRUE浏览器”，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，操作权限\“：\”TRUE\“}，\“labels\”：[]}]”；
String findkeyvalue=“当前就业状态：False”；
布尔标志=FindValue（临时、findkeyvalue）；
System.out.println（标志）；
}
私有静态布尔FindValue（字符串临时值、字符串findkeyvalue）{
试一试{
JSONParser JSONParser=新的JSONParser（）；
JSONArray数组=（JSONArray）jsonParser.parse（temp）；
对于（int i=0；iimport java.io.IOException;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
public class Test {
public static void main(String[] args) throws IOException, JSONException {
String sb = "[{\"last_seen\":1557908766238,\"distinct_id\":\"11cb639f-cbf7-499c- a1cf-e3ff4466a093\",\"time\":1557908766238,\"properties\": {\"$browser_version\":74,\"$name\":\"Jessica Claire\",\"$timezone\":\"Asia/Kolkata\",\"$os\":\"Windows\",\"$email\":\"19_05_15_135529631_ebMPR@email-qa.livecareer.com\",\"$initial_referring_domain\":\"$direct\",\"userid\":\"11cb639f-cbf7-499c-a1cf-e3ff4466a093\",\"$first_name\":\"Jessica\",\"Current Employment Status\":\"FALSE\",\"enter builder\":1,\"fedex experience\":\"FALSE\",\"ResumeTips Permission\":\"TRUE\",\"id\":\"11cb639f-cbf7-499c-a1cf-e3ff4466a093\",\"LCNews Permission\":\"TRUE\",\"Document Creation Mode\":\"scratch\",\"Email Valid\":\"False\",\"$last_name\":\"Claire\",\"Payment Status\":\"Not Started\",\"Work Experience Modal\":\"TRUE\",\"$city\":\"Noida\",\"Subscription Status\":\"FALSE\",\"Job Alerts Permission\":\"TRUE\",\"sign up\":1,\"$browser\":\"Chrome\",\"userId\":\"11cb639f-cbf7-499c-a1cf-e3ff4466a093\",\"$country_code\":\"IN\",\"$region\":\"Uttar Pradesh\",\"One Time Purchase\":\"FALSE\",\"$last_seen\":\"2019-05-15T08:26:06.000Z\",\"Last enter builder\":\"2019-05-15T08:24:01.000Z\",\"Last sign up\":\"2019-05-15T08:26:03.000Z\",\"$initial_referrer\":\"$direct\",\"EduOps Permission\":\"TRUE\"},\"labels\":[]}]";
JSONArray jsonArray = new JSONArray(sb);
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject jsonObject = jsonArray.getJSONObject(i);
Object value = null;
try {
JSONObject properties = (JSONObject) jsonObject.get("properties");
value = properties.get("Current Employment Status");
} catch (JSONException e) {
//print flase if not found
System.out.println("false");
}
//print the value if found
System.out.println("Value =" + value);
}
}
}
import java.io.IOException；
导入org.json.JSONArray；
导入org.json.JSONException；
导入org.json.JSONObject；
公开课考试{
公共静态void main（字符串[]args）抛出IOException、JSONException{
字符串sb=“[{\“上次看到的”\”：1557908766238，“不同的id\”：“11cb639f-cbf7-499c-a1cf-e3ff4466a093\”，“时间”：1557908766238，\“属性”：{“$browser\u version\”：74，“$name\”：“Jessica Claire\”，“$timezone\”：“亚洲/加尔各答”，“$os\”：“Windows\”，“$email\”：“19$U 1359631_ebMPR@email-qa.livecareer.com\”，\“$initial\u referenting\u domain\”：\“$direct\“，”用户名\“：\”11cb639f-cbf7-499c-a1cf-e3ff4466a093\”，“$first\U name\”：”杰西卡\“，”当前就业状况\“：”假\“，”进入建设者\“：1，\”联邦快递体验\“：”假\“，”简历提示权限\“：”真\“，”身份\“：”11cb639f-cbf7-499c-a1cf-e3ff4466a093\”，“LCNews权限\“，”创建文档\“，”有效模式\:”真电子邮件\:\“False\”、“$last\u name\”：“Claire\”、“$Payment Status\”：“Not Started\”、“$city\”：“Noida\”、“$Subscription Status\”：“False\”、“$Job Alerts Permission\”：“TRUE\”、“$sign up\”：1、“$browser\”：“Chrome\”、“userId\”：“11cb639f-cbf7-499c-a1cf-E344A093、“$FFU代码：”、“$region\”、“$Pruttar\”、“$h\”、“$Buttar\”一次性购买\“：“FALSE\”，“$last\”，“2019-05-15T08:26:06.000Z\”，“last enter builder\”，“2019-05-15T08:24:01.000Z\”，“last sign\”，“2019-05-15T08:26:03.000Z\”，“$initial\U Referer\”，“$direct\”，“Edoops Permission\”：“TRUE\”，“labels\”：[]；
JSONArray JSONArray=新JSONArray（sb）；
for（int i=0；iString path=“others\\findKey.json”；
文件f=新文件（路径）；
JSONParser=新的JSONParser（）；
Object obj=parser.parse（新文件读取）