Исполняемый файл Jar не может прочитать внутренний файл JSON - PullRequest
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Исполняемый файл Jar не может прочитать внутренний файл JSON

1 голос
/ 02 августа 2020

У меня есть приложение со сценарием чтения-записи, которое будет читать и записывать набор ссылок и флажков, а также читать или записывать файл JSON. Все части приложения работают нормально, кроме случаев, когда я пытаюсь прочитать файл JSON. Я пробовал использовать как FileReader, так и InputStream, но не могу заставить их работать в любом случае.

FileWriter отлично работает в Eclipse IDE, ( Последняя версия, работает JDK 11, то же самое, что и версия java в моем P C), но не тогда, когда я упаковываю его в работоспособную банку. Я также пробовал InputStream, но это не работает ни в среде IDE, ни в упакованном файле jar.

Я использую Google JSON simple, если это тоже помогает. Я также загрузил экспорт в файловую систему всего проекта, если это необходимо GDriveLink (это проект для начинающих для школы, поэтому он не выглядит слишком красиво внутри.)

Код для FileWriter: 

public void ReadToJson() { //I've tried this as static and non static

                //JSON parser object to parse read file
                JSONParser jsonParser = new JSONParser();
                 
                try (FileReader reader = new FileReader("Links.json"))   //line 93  

                {
                    
                    //Read JSON file
                    Object obj = jsonParser.parse(reader);
         
                    JSONArray userList = (JSONArray) obj;
                    System.out.println(userList);
                     
                    //Iterate over user array
                    userList.forEach( emp -> parseUserObject( (JSONObject) emp ) );
         
                } catch (FileNotFoundException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                } catch (ParseException e) {
                    e.printStackTrace();
                }

            }
            
            private static void parseUserObject(JSONObject user) 
            {
                //Get user object within list
                JSONObject userObject = (JSONObject) user.get("linkSet1");
                
                //Get 1st link data
                link1 = (String) userObject.get("jlink1");
                link1Cb = (String) userObject.get("jlink1Cb");    
                System.out.println(link1);
                System.out.println(link1Cb);
                
              //Get 2nd link data
                link2 = (String) userObject.get("jlink2");
                link2Cb = (String) userObject.get("jlink2Cb");    
                System.out.println(link2);
                System.out.println(link2Cb);
                
              //Get 3rd link data
                link3 = (String) userObject.get("jlink3");
                link3Cb = (String) userObject.get("jlink3Cb");    
                System.out.println(link3);
                System.out.println(link3Cb);
                
              //Get 4th link data
                link4 = (String) userObject.get("jlink4");
                link4Cb = (String) userObject.get("jlink4Cb");    
                System.out.println(link4);
                System.out.println(link4Cb);
                
              //Get 5th link data
                link5 = (String) userObject.get("jlink5");
                link5Cb = (String) userObject.get("jlink5Cb");    
                System.out.println(link5);
                System.out.println(link5Cb);
                
              //Get first link data
                link6 = (String) userObject.get("jlink6");
                link6Cb = (String) userObject.get("jlink6Cb");    
                System.out.println(link6);
                System.out.println(link6Cb);
                
            }
            
    }

Журналы консоли для FileWriter после вызова функции ReadToJson(): 

java.io.FileNotFoundException: Links.json (The system cannot find the file specified)
        at java.base/java.io.FileInputStream.open0(Native Method)
        at java.base/java.io.FileInputStream.open(FileInputStream.java:219)
        at java.base/java.io.FileInputStream.<init>(FileInputStream.java:157)
        at java.base/java.io.FileInputStream.<init>(FileInputStream.java:112)
        at java.base/java.io.FileReader.<init>(FileReader.java:60)
        at mainFolder.common.RWJsonBTabs.ReadToJson(RWJsonBTabs.java:93)
        at mainFolder.views.panelBrowser$3.actionPerformed(panelBrowser.java:159)
        at java.desktop/javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1967)
        at java.desktop/javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2308)
        at java.desktop/javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:405)
        at java.desktop/javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:262)
        at java.desktop/javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:279)
        at java.desktop/java.awt.Component.processMouseEvent(Component.java:6631)
        at java.desktop/javax.swing.JComponent.processMouseEvent(JComponent.java:3342)
        at java.desktop/java.awt.Component.processEvent(Component.java:6396)
        at java.desktop/java.awt.Container.processEvent(Container.java:2263)
        at java.desktop/java.awt.Component.dispatchEventImpl(Component.java:5007)
        at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2321)
        at java.desktop/java.awt.Component.dispatchEvent(Component.java:4839)
        at java.desktop/java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4918)
        at java.desktop/java.awt.LightweightDispatcher.processMouseEvent(Container.java:4547)
        at java.desktop/java.awt.LightweightDispatcher.dispatchEvent(Container.java:4488)
        at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2307)
        at java.desktop/java.awt.Window.dispatchEventImpl(Window.java:2772)
        at java.desktop/java.awt.Component.dispatchEvent(Component.java:4839)
        at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:772)
        at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721)
        at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:715)
        at java.base/java.security.AccessController.doPrivileged(Native Method)
        at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
        at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:95)
        at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:745)
        at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:743)
        at java.base/java.security.AccessController.doPrivileged(Native Method)
        at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
        at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:742)
        at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
        at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
        at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
        at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
        at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
        at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)

Код для InputStream: 

public void ReadToJson() {
//JSON parser object to parse read file
                JSONParser jsonParser = new JSONParser();
                 
                try (InputStream inputStream = getClass().getResourceAsStream("Links.json");
                        BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream))) //Line 94       
                {
                    
                    //Read JSON file
                    Object obj = jsonParser.parse(reader);
         
                    JSONArray userList = (JSONArray) obj;
                    System.out.println(userList);
                     
                    //Iterate over user array
                    userList.forEach( emp -> parseUserObject( (JSONObject) emp ) );
         
                } catch (FileNotFoundException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                } catch (ParseException e) {
                    e.printStackTrace();
                }

            }
            
            private static void parseUserObject(JSONObject user) 
            {
                //Get user object within list
                JSONObject userObject = (JSONObject) user.get("linkSet1");
                
                //Get 1st link data
                link1 = (String) userObject.get("jlink1");
                link1Cb = (String) userObject.get("jlink1Cb");    
                System.out.println(link1);
                System.out.println(link1Cb);
                
              //Get 2nd link data
                link2 = (String) userObject.get("jlink2");
                link2Cb = (String) userObject.get("jlink2Cb");    
                System.out.println(link2);
                System.out.println(link2Cb);
                
              //Get 3rd link data
                link3 = (String) userObject.get("jlink3");
                link3Cb = (String) userObject.get("jlink3Cb");    
                System.out.println(link3);
                System.out.println(link3Cb);
                
              //Get 4th link data
                link4 = (String) userObject.get("jlink4");
                link4Cb = (String) userObject.get("jlink4Cb");    
                System.out.println(link4);
                System.out.println(link4Cb);
                
              //Get 5th link data
                link5 = (String) userObject.get("jlink5");
                link5Cb = (String) userObject.get("jlink5Cb");    
                System.out.println(link5);
                System.out.println(link5Cb);
                
              //Get first link data
                link6 = (String) userObject.get("jlink6");
                link6Cb = (String) userObject.get("jlink6Cb");    
                System.out.println(link6);
                System.out.println(link6Cb);
            }

Журналы консоли для InputStream после вызова функции ReadToJson(): 

Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
    at java.base/java.io.Reader.<init>(Reader.java:167)
    at java.base/java.io.InputStreamReader.<init>(InputStreamReader.java:72)
    at mainFolder.common.RWJsonBTabs.ReadToJson(RWJsonBTabs.java:94)
    at mainFolder.views.panelBrowser$3.actionPerformed(panelBrowser.java:159)
    at java.desktop/javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1967)
    at java.desktop/javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2308)
    at java.desktop/javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:405)
    at java.desktop/javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:262)
    at java.desktop/javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:279)
    at java.desktop/java.awt.Component.processMouseEvent(Component.java:6631)
    at java.desktop/javax.swing.JComponent.processMouseEvent(JComponent.java:3342)
    at java.desktop/java.awt.Component.processEvent(Component.java:6396)
    at java.desktop/java.awt.Container.processEvent(Container.java:2263)
    at java.desktop/java.awt.Component.dispatchEventImpl(Component.java:5007)
    at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2321)
    at java.desktop/java.awt.Component.dispatchEvent(Component.java:4839)
    at java.desktop/java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4918)
    at java.desktop/java.awt.LightweightDispatcher.processMouseEvent(Container.java:4547)
    at java.desktop/java.awt.LightweightDispatcher.dispatchEvent(Container.java:4488)
    at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2307)
    at java.desktop/java.awt.Window.dispatchEventImpl(Window.java:2772)
    at java.desktop/java.awt.Component.dispatchEvent(Component.java:4839)
    at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:772)
    at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721)
    at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:715)
    at java.base/java.security.AccessController.doPrivileged(Native Method)
    at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
    at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:95)
    at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:745)
    at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:743)
    at java.base/java.security.AccessController.doPrivileged(Native Method)
    at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
    at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:742)
    at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
    at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
    at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
    at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
    at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
    at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)

1 Ответ

0 голосов
/ 03 августа 2020

КРЕДИТ ПЕРЕХОДИТ НА @VGR ДЛЯ ПОМОЩИ МНЕ В КОММЕНТАРИЯХ

В итоге я переместил файл JSON из каталога root в папку, что и помогло. Я также изменил код благодаря @ VGR. 

public void ReadToJson() {
                
                //JSON parser object to parse read file
                JSONParser jsonParser = new JSONParser();
                 // /Tigris Auxilium/src/mainFolder/resources/Links.json
                try (InputStreamReader reader = new InputStreamReader(RWJsonBTabs.class.getResourceAsStream("/mainFolder/resources/Links.json"), StandardCharsets.UTF_8))   
                {
                    
                    //Read JSON file
                    Object obj = jsonParser.parse(reader);
         
                    JSONArray userList = (JSONArray) obj;
                    System.out.println(userList);
                     
                    //Iterate over user array
                    userList.forEach( emp -> parseUserObject( (JSONObject) emp ) );
         
                } catch (FileNotFoundException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                } catch (ParseException e) {
                    e.printStackTrace();
                }

            }
...