使用 JSpreadsheet 遇到警告和错误 [英] Running into warnings and errors using JSpreadsheet

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问题描述

我正在使用 JSpreadSheet 从 SDCard 读取 xlsx 文件并尝试尽可能使应用程序运行.我已经在 J​​ava 中尝试了相同的代码并且它完美地工作，将单元格输出到 system.out 但它似乎在 Android 中不起作用.请帮忙！

I'm using JSpreadSheet to read an xlsx file from the SDCard and try as I might I cannot get the app to work. I've tried the same code in Java and it work flawlessly, outputting the cells to system.out but it doesn't seem to be working in Android. Please help !

这是我的功能:

public void readAndDisplay(){





                try
                {
                    Workbook book = new Workbook("/sdcard/new.xlsx");

                    for (Sheet sheet : book.getSheets())
                    {
                        if (sheet instanceof Worksheet)
                        {
                            Worksheet worksheet = (Worksheet)sheet;
                            List<Cell> cells = worksheet.getCells();

                            for (int i = 0; i < cells.size(); i++)
                            {
                                System.out.println(cells.get(i).getReference() + " = " + cells.get(i).getValue());
                            }
                        }
                    }
                }
                catch (Exception e)
                {
                    System.out.println(e.getMessage());
                    e.printStackTrace();
                }





    }

我知道我应该使用 Environment 来访问 SDCard，但这不是现在的问题.我得到的警告是这些，应用程序崩溃并且根本无法在模拟器上运行.

I know I should be using Environment to get to the SDCard but that's not the issue right now. The warnings I get are these, the app crashes and doesn't run at all on the emulator.

08-17 19:08:17.420: W/dalvikvm(5240): VFY: unable to find class referenced in signature (Ljavax/xml/stream/XMLStreamReader;)
08-17 19:08:17.420: W/dalvikvm(5240): VFY: unable to resolve interface method 21544: Ljavax/xml/stream/XMLStreamReader;.getAttributeValue (Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
08-17 19:08:17.420: W/dalvikvm(5240): VFY: unable to find class referenced in signature (Ljavax/xml/stream/XMLStreamReader;)
08-17 19:08:17.420: W/dalvikvm(5240): VFY: unable to resolve interface method 21548: Ljavax/xml/stream/XMLStreamReader;.hasNext ()Z
08-17 19:08:17.420: W/dalvikvm(5240): VFY: unable to find class referenced in signature (Ljavax/xml/stream/XMLStreamReader;)
08-17 19:08:17.420: W/dalvikvm(5240): VFY: unable to resolve interface method 21548: Ljavax/xml/stream/XMLStreamReader;.hasNext ()Z
08-17 19:08:17.420: W/dalvikvm(5240): VFY: unable to find class referenced in signature (Ljavax/xml/stream/XMLStreamReader;)
08-17 19:08:17.430: W/dalvikvm(5240): VFY: unable to resolve interface method 21544: Ljavax/xml/stream/XMLStreamReader;.getAttributeValue (Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
08-17 19:08:17.430: W/dalvikvm(5240): VFY: unable to find class referenced in signature (Ljavax/xml/stream/XMLStreamReader;)
08-17 19:08:17.430: W/dalvikvm(5240): VFY: unable to resolve interface method 21544: Ljavax/xml/stream/XMLStreamReader;.getAttributeValue (Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
08-17 19:08:17.430: W/dalvikvm(5240): VFY: unable to find class referenced in signature (Ljavax/xml/stream/XMLStreamReader;)
08-17 19:08:17.430: W/dalvikvm(5240): VFY: unable to resolve interface method 21544: Ljavax/xml/stream/XMLStreamReader;.getAttributeValue (Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
08-17 19:08:17.430: W/dalvikvm(5240): VFY: unable to find class referenced in signature (Ljavax/xml/stream/XMLStreamReader;)
08-17 19:08:17.430: W/dalvikvm(5240): VFY: unable to resolve interface method 21544: Ljavax/xml/stream/XMLStreamReader;.getAttributeValue (Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
08-17 19:08:17.430: W/dalvikvm(5240): VFY: unable to find class referenced in signature (Ljavax/xml/stream/XMLStreamReader;)
08-17 19:08:17.430: W/dalvikvm(5240): VFY: unable to resolve interface method 21544: Ljavax/xml/stream/XMLStreamReader;.getAttributeValue (Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
08-17 19:08:17.430: W/dalvikvm(5240): VFY: unable to find class referenced in signature (Ljavax/xml/stream/XMLStreamReader;)
08-17 19:08:17.430: W/dalvikvm(5240): VFY: unable to resolve interface method 21544: Ljavax/xml/stream/XMLStreamReader;.getAttributeValue (Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
08-17 19:08:17.430: W/dalvikvm(5240): VFY: unable to find class referenced in signature (Ljavax/xml/stream/XMLStreamReader;)
08-17 19:08:17.430: W/dalvikvm(5240): VFY: unable to resolve interface method 21544: Ljavax/xml/stream/XMLStreamReader;.getAttributeValue (Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
08-17 19:08:17.430: W/dalvikvm(5240): VFY: unable to find class referenced in signature (Ljavax/xml/stream/XMLStreamReader;)
08-17 19:08:17.430: W/dalvikvm(5240): VFY: unable to resolve interface method 21544: Ljavax/xml/stream/XMLStreamReader;.getAttributeValue (Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
08-17 19:08:17.430: W/dalvikvm(5240): VFY: unable to find class referenced in signature (Ljavax/xml/stream/XMLStreamReader;)
08-17 19:08:17.430: W/dalvikvm(5240): VFY: unable to resolve interface method 21548: Ljavax/xml/stream/XMLStreamReader;.hasNext ()Z
08-17 19:08:17.430: W/dalvikvm(5240): VFY: unable to find class referenced in signature (Ljavax/xml/stream/XMLStreamReader;)
08-17 19:08:17.430: W/dalvikvm(5240): VFY: unable to resolve interface method 21548: Ljavax/xml/stream/XMLStreamReader;.hasNext ()Z
08-17 19:09:14.670: W/System.err(5297):     at com.independentsoft.office.spreadsheet.Workbook.<init>(SourceFile:64)
08-17 19:09:14.670: W/System.err(5297):     at com.example.gss4internal.MainActivity.readAndDisplay(MainActivity.java:32)
08-17 19:09:14.670: W/System.err(5297):     at com.example.gss4internal.MainActivity.onCreate(MainActivity.java:21)
08-17 19:09:14.670: W/System.err(5297):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
08-17 19:09:14.670: W/System.err(5297):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611)
08-17 19:09:14.670: W/System.err(5297):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
08-17 19:09:14.670: W/System.err(5297):     at android.app.ActivityThread.access$1500(ActivityThread.java:117)
08-17 19:09:14.670: W/System.err(5297):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
08-17 19:09:14.670: W/System.err(5297):     at android.os.Handler.dispatchMessage(Handler.java:99)
08-17 19:09:14.670: W/System.err(5297):     at android.os.Looper.loop(Looper.java:130)
08-17 19:09:14.670: W/System.err(5297):     at android.app.ActivityThread.main(ActivityThread.java:3683)
08-17 19:09:14.670: W/System.err(5297):     at java.lang.reflect.Method.invokeNative(Native Method)
08-17 19:09:14.670: W/System.err(5297):     at java.lang.reflect.Method.invoke(Method.java:507)
08-17 19:09:14.670: W/System.err(5297):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:880)
08-17 19:09:14.670: W/System.err(5297):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:638)
08-17 19:09:14.670: W/System.err(5297):     at dalvik.system.NativeStart.main(Native Method)

推荐答案

他们有单独的 Android jar 文件.请确保您使用的是 Android 的 jar 文件，而不是 Java SDK.

They have separate jar file for Android. Be sure that you use jar file for Android, not for Java SDK.

这篇关于使用 JSpreadsheet 遇到警告和错误的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！

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