com.mongodb.MongoException$CursorNotFound: cursor not found on server異常處理，servernotfound

com.mongodb.MongoException$CursorNotFound: cursor not found on server異常處理，servernotfound

java連結MongoDB處理大量資料時經常碰到cursor not found 的異常,其實是逾時所致

Exception in thread "main" com.mongodb.MongoException$CursorNotFound: cursor not found on server
        at com.mongodb.DBApiLayer$Result.init(DBApiLayer.java:379)
        at com.mongodb.DBApiLayer$Result._advance(DBApiLayer.java:426)
        at com.mongodb.DBApiLayer$Result.hasNext(DBApiLayer.java:408)
        at com.mongodb.DBCursor._hasNext(DBCursor.java:495)
        at com.mongodb.DBCursor.hasNext(DBCursor.java:515)

在國內論壇上轉了一圈，解決方案說的不知所云，其實解決方案很簡單：
           DBCursor cursor = collection.find(condtion);
                  cursor.addOption(com.mongodb.Bytes.QUERYOPTION_NOTIMEOUT);

只要在查詢的DBCursor添加com.mongodb.Bytes.QUERYOPTION_NOTIMEOUT就解決！