解析Salesforce Apex中的JSON對象

如何解析Apex中給定格式的jsonObject？解析Salesforce Apex中的JSON對象

我需要列表< String>來自包含id屬性的items數組。什麼是一些適當的方法？

爲了解析它，我嘗試創建一個類代碼：

public class JSON2Apex { 

    public class Items { 
     public String kind; 
     public String etag; 
     public String id; 
     public String status; 
     public String htmlLink; 
     public String created; 
     public String updated; 
     public String summary; 
     public String description; 
     public String location; 
     public Creator creator; 
     public Creator organizer; 
     public Start start; 
     public Start end; 
     public String iCalUID; 
     public Integer sequence; 
     public Reminders reminders; 
    } 

    public class Reminders { 
     public Boolean useDefault; 
    } 

    public class Start { 
     public String dateTime; 
    } 

    public class Creator { 
     public String email; 
     public String displayName; 
     public Boolean self; 
    } 

    public String kind; 
    public String etag; 
    public String summary; 
    public String updated; 
    public String timeZone; 
    public String accessRole; 
    public List<DefaultReminders> defaultReminders; 
    public List<Items> items; 

    public class DefaultReminders { 
     public String method; 
     public Integer minutes; 
    } 

}

但是在這個類是露出一些保留關鍵字是用戶喜歡月底，日期時間等所以不能再使用這種方法進行。

{ 
    "kind": "calendar#events", 
    "etag": "\"ZrhdJMCgpoUK_a5fT7XOC6xn46g/jAScaUzsyk9nbyyvTc1Wa3-tulA\"", 
    "summary": "[email protected]", 
    "updated": "2013-02-16T16:23:20.057Z", 
    "timeZone": "Asia/Calcutta", 
    "accessRole": "owner", 
    "defaultReminders": [ 
     { 
      "method": "email", 
      "minutes": 10 
     }, 
     { 
      "method": "popup", 
      "minutes": 10 
     } 
    ], 
    "items": [ 
     { 
      "kind": "calendar#event", 
      "etag": "\"ZrhdJMCgpoUK_a5fT7XOC6xn46g/Z2NhbDAwMDAxMzU2MTQ1NTg1NjYxMDAw\"", 
      "id": "ngo4lfq6q7c4dm8bej7m47e5lc", 
      "status": "confirmed", 
      "htmlLink": "https://www.google.com/calendar/event?eid=bmdvNGxmcTZxN2M0ZG04YmVqN200N2U1bGMgcml0ZXNobWVoYW5kaXJhdHRhQG0", 
      "created": "2012-12-22T03:04:01.000Z", 
      "updated": "2012-12-22T03:06:25.661Z", 
      "summary": "hello", 
      "description": "hgjgjh", 
      "location": "hkhkhk", 
      "creator": { 
       "email": "[email protected]", 
       "displayName": "RITESH MEHANDIRATTA", 
       "self": true 
      }, 
      "organizer": { 
       "email": "[email protected]", 
       "displayName": "RITESH MEHANDIRATTA", 
       "self": true 
      }, 
      "start": { 
       "dateTime": "2013-01-01T10:00:00+05:30" 
      }, 
      "end": { 
       "dateTime": "2013-01-15T00:00:00+05:30" 
      }, 
      "iCalUID": "[email protected]", 
      "sequence": 1, 
      "reminders": { 
       "useDefault": true 
      } 
     }, 
     { 
      "kind": "calendar#event", 
      "etag": "\"ZrhdJMCgpoUK_a5fT7XOC6xn46g/Z2NhbDAwMDAxMzYxMDMxNTg1OTYzMDAw\"", 
      "id": "oap7nr7ukjug6euo24kvhmfbm0", 
      "status": "confirmed", 
      "htmlLink": "https://www.google.com/calendar/event?eid=b2FwN25yN3VranVnNmV1bzI0a3ZobWZibTAgcml0ZXNobWVoYW5kaXJhdHRhQG0", 
      "created": "2013-02-16T16:19:45.000Z", 
      "updated": "2013-02-16T16:19:45.963Z", 
      "summary": "Hello World", 
      "creator": { 
       "email": "[email protected]", 
       "displayName": "RITESH MEHANDIRATTA", 
       "self": true 
      }, 
      "organizer": { 
       "email": "[email protected]", 
       "displayName": "RITESH MEHANDIRATTA", 
       "self": true 
      }, 
      "start": { 
       "dateTime": "2013-02-11T11:00:00+05:30" 
      }, 
      "end": { 
       "dateTime": "2013-02-11T12:00:00+05:30" 
      }, 
      "iCalUID": "[email protected]", 
      "sequence": 0, 
      "reminders": { 
       "useDefault": true 
      } 
     }, 
     { 
      "kind": "calendar#event", 
      "etag": "\"ZrhdJMCgpoUK_a5fT7XOC6xn46g/Z2NhbDAwMDAxMzYxMDMxNjQxMDYzMDAw\"", 
      "id": "k2mvqecqdgoudt6fl4e5hhqna0", 
      "status": "confirmed", 
      "htmlLink": "https://www.google.com/calendar/event?eid=azJtdnFlY3FkZ291ZHQ2Zmw0ZTVoaHFuYTAgcml0ZXNobWVoYW5kaXJhdHRhQG0", 
      "created": "2013-02-16T16:20:41.000Z", 
      "updated": "2013-02-16T16:20:41.063Z", 
      "summary": "Hello Wol", 
      "creator": { 
       "email": "[email protected]", 
       "displayName": "RITESH MEHANDIRATTA", 
       "self": true 
      }, 
      "organizer": { 
       "email": "[email protected]", 
       "displayName": "RITESH MEHANDIRATTA", 
       "self": true 
      }, 
      "start": { 
       "dateTime": "2013-02-11T13:00:00+05:30" 
      }, 
      "end": { 
       "dateTime": "2013-02-11T14:00:00+05:30" 
      }, 
      "iCalUID": "[email protected]", 
      "sequence": 0, 
      "reminders": { 
       "useDefault": true 
      } 
     }, 
     { 
      "kind": "calendar#event", 
      "etag": "\"ZrhdJMCgpoUK_a5fT7XOC6xn46g/Z2NhbDAwMDAxMzYxMDMxNjUyNDE1MDAw\"", 
      "id": "0n2if07oo9pvfdnf7f0a6cldns", 
      "status": "confirmed", 
      "htmlLink": "https://www.google.com/calendar/event?eid=MG4yaWYwN29vOXB2ZmRuZjdmMGE2Y2xkbnMgcml0ZXNobWVoYW5kaXJhdHRhQG0", 
      "created": "2013-02-16T16:20:52.000Z", 
      "updated": "2013-02-16T16:20:52.415Z", 
      "summary": "Hello World1", 
      "creator": { 
       "email": "[email protected]", 
       "displayName": "RITESH MEHANDIRATTA", 
       "self": true 
      }, 
      "organizer": { 
       "email": "[email protected]", 
       "displayName": "RITESH MEHANDIRATTA", 
       "self": true 
      }, 
      "start": { 
       "dateTime": "2013-02-11T15:30:00+05:30" 
      }, 
      "end": { 
       "dateTime": "2013-02-11T16:30:00+05:30" 
      }, 
      "iCalUID": "[email protected]", 
      "sequence": 0, 
      "reminders": { 
       "useDefault": true 
      } 
     }, 
     { 
      "kind": "calendar#event", 
      "etag": "\"ZrhdJMCgpoUK_a5fT7XOC6xn46g/Z2NhbDAwMDAxMzYxMDMxNzcwNDMzMDAw\"", 
      "id": "r365lrv775bqjiplmaqjro9grc", 
      "status": "confirmed", 
      "htmlLink": "https://www.google.com/calendar/event?eid=cjM2NWxydjc3NWJxamlwbG1hcWpybzlncmMgcml0ZXNobWVoYW5kaXJhdHRhQG0", 
      "created": "2013-02-16T16:22:50.000Z", 
      "updated": "2013-02-16T16:22:50.433Z", 
      "creator": { 
       "email": "[email protected]", 
       "displayName": "RITESH MEHANDIRATTA", 
       "self": true 
      }, 
      "organizer": { 
       "email": "[email protected]", 
       "displayName": "RITESH MEHANDIRATTA", 
       "self": true 
      }, 
      "start": { 
       "dateTime": "2013-02-11T14:30:00+05:30" 
      }, 
      "end": { 
       "dateTime": "2013-02-11T15:30:00+05:30" 
      }, 
      "iCalUID": "[email protected]", 
      "sequence": 0, 
      "reminders": { 
       "useDefault": true 
      } 
     } 
    ] 
}

來源

2013-02-16 Ritesh Mehandiratta

可以使用deserializeUntyped功能在普通的對象/表/圖對象與JSON工作。你只需要記住把所有東西都轉換成預期的類型（就像在Java中一樣）。因此，訪問每個項目的id字段，你會做

public void parse() { 
    Map<String, Object> root = (Map<String, Object>)JSON.deserializeUntyped(getJsonToParse()); 
    List<Object> items = (List<Object>)root.get('items'); 
    for (Object item : items) { 
     Map<String, Object> i = (Map<String, Object>)item; 
     System.debug(i.get('id')); 
    } 
}

產生這個調試輸出：

Debug log results

來源

2013-02-16 18:11:17 superfell

非常感謝您的答覆 – 2013-02-17 05:15:49

哎請回復此查詢HTTP： //stackoverflow.com/questions/14921235/debugging-schedulable-job-in-apex-salesforce – 2013-02-17 13:02:45

@superfell - 你太棒了！你的回答讓我擺脫了泡菜！謝謝！ – 2013-06-06 18:53:28

解析Salesforce Apex中的JSON對象

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