안드로이드에서 엑셀 파일을 만드는 방법은?

안드로이드에서 엑셀 파일을 만드는 방법은?

프로그램적으로 엑셀 파일을 작성해야 합니다.Excel 파일 등을 작성할 수 있는 API가 있습니까?
2011년 11월 7일 편집
이 링크에서 Excel 스프레드시트 만들기 Excel spredsheet 만들기 예시를 사용해 보았습니다.
Null Pointer를 받고 있습니다.예외:workbook.write();이를 사용하여 SD카드에 엑셀 파일을 만들 수 있지만 MS office 2007을 사용하여 엑셀 파일을 열었을 때,Unable to read file메세지
여기에서는 스택트레이스택 트레이스,ExcelStudy제 활동입니다.WriteExcel학급

W/System.err(  235): java.lang.NullPointerException
W/System.err(  235):    at jxl.biff.StringHelper.getUnicodeBytes(StringHelper.java:133)
W/System.err(  235):    at jxl.biff.FontRecord.getData(FontRecord.java:289)
W/System.err(  235):    at jxl.biff.WritableRecordData.getBytes(WritableRecordData.java:71)
W/System.err(  235):    at jxl.write.biff.File.write(File.java:132)
W/System.err(  235):    at jxl.biff.Fonts.write(Fonts.java:110)
W/System.err(  235):    at jxl.write.biff.WritableWorkbookImpl.write(WritableWorkbookImpl.java:699)
W/System.err(  235):    at comm.study.code.WriteExcel.write(WriteExcel.java:49)
W/System.err(  235):    at comm.study.code.ExcelStudy.createExcelFile(ExcelStudy.java:64)
W/System.err(  235):    at comm.study.code.ExcelStudy$1.onClick(ExcelStudy.java:47)
W/System.err(  235):    at android.view.View.performClick(View.java:2364)
W/System.err(  235):    at android.view.View.onTouchEvent(View.java:4179)
W/System.err(  235):    at android.widget.TextView.onTouchEvent(TextView.java:6541)
W/System.err(  235):    at android.view.View.dispatchTouchEvent(View.java:3709)
W/System.err(  235):    at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
W/System.err(  235):    at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
W/System.err(  235):    at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
W/System.err(  235):    at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1659)
W/System.err(  235):    at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1107)
W/System.err(  235):    at android.app.Activity.dispatchTouchEvent(Activity.java:2061)
W/System.err(  235):    at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1643)
W/System.err(  235):    at android.view.ViewRoot.handleMessage(ViewRoot.java:1691)
W/System.err(  235):    at android.os.Handler.dispatchMessage(Handler.java:99)
W/System.err(  235):    at android.os.Looper.loop(Looper.java:123)
W/System.err(  235):    at android.app.ActivityThread.main(ActivityThread.java:4363)
W/System.err(  235):    at java.lang.reflect.Method.invokeNative(Native Method)
W/System.err(  235):    at java.lang.reflect.Method.invoke(Method.java:521)
W/System.err(  235):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
W/System.err(  235):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
W/System.err(  235):    at dalvik.system.NativeStart.main(Native Method)

먼저 다음 링크에서 최신 라이브러리를 다운로드할 수 있습니다.

http://www.apache.org/dyn/closer.cgi/poi/release/bin/poi-bin-3.9-20121203.tar.gz

그 후 작성 시 또는 재개 시 아래 코드를 입력합니다.

HSSFWorkbook workbook = new HSSFWorkbook();
HSSFSheet firstSheet = workbook.createSheet("Sheet No: 1");
HSSFSheet secondSheet = workbook.createSheet("Sheet No: 2");
HSSFRow rowA = firstSheet.createRow(0);
HSSFCell cellA = rowA.createCell(0);
cellA.setCellValue(new HSSFRichTextString("Sheet One"));
HSSFRow rowB = secondSheet.createRow(0);
HSSFCell cellB = rowB.createCell(0);
cellB.setCellValue(new HSSFRichTextString("Sheet two"));
FileOutputStream fos = null;
try {
    String str_path = Environment.getExternalStorageDirectory().toString();
    File file ;
    file = new File(str_path, getString(R.string.app_name) + ".xls");
    fos = new FileOutputStream(file);
    workbook.write(fos);
} catch (IOException e) {
    e.printStackTrace();
} finally {
    if (fos != null) {
        try {
            fos.flush();
            fos.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    Toast.makeText(MainActivity.this, "Excel Sheet Generated", Toast.LENGTH_SHORT).show();
}

// 이 Excel 파일을 표시하려면 파일익스플로러에 접속합니다.-> SDCard 경로 -> Excel.xls -> 꺼내기 -> 보기

Excel 파일에 쓰거나 Excel 파일에서 읽으려면 http://jexcelapi.sourceforge.net/(이 튜토리얼 참조) 또는 Apache POI를 사용할 수 있습니다.

먼저 앱의 build.gradle에 이러한 의존관계를 추가한 후 다른 답변을 따르십시오.

implementation 'org.apache.poi:poi:3.17'
implementation 'org.apache.poi:poi-ooxml:3.17'

콩반

class Bean {
        String initial, firstName, middleName, lastName;

        Bean(String initial, String firstName, String middleName, String lastName) {
            this.initial = initial;
            this.firstName = firstName;
            this.middleName = middleName;
            this.lastName = lastName;
        }

        public String getInitial() {
            return initial;
        }

        public String getFirstName() {
            return firstName;
        }

        public String getMiddleName() {
            return middleName;
        }

        public String getLastName() {
            return lastName;
        }

    }

ExcelSheet 작성 코드

sheet.addCell(신규 라벨(0, 0, "NameInitial"));
sheet.addCell(새로운 라벨(columnNumber, rowNumber, dataString));

 File directory, sd, file;
    WritableWorkbook workbook;

    void createExcelSheet() {
        String csvFile = "ExcelsheetName.xls";
        sd = Environment.getExternalStorageDirectory();
        directory = new File(sd.getAbsolutePath());
        file = new File(directory, csvFile);
        WorkbookSettings wbSettings = new WorkbookSettings();
        wbSettings.setLocale(new Locale("en", "EN"));
        try {
            workbook = Workbook.createWorkbook(file, wbSettings);
            createFirstSheet();
            createSecondSheet();
            //closing cursor
            workbook.write();
            workbook.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    void createFirstSheet() {
        try {
            List<Bean> listdata = new ArrayList<>();

            listdata.add(new Bean("mr","firstName1","middleName1","lastName1"));
            listdata.add(new Bean("mr","firstName1","middleName1","lastName1"));
            listdata.add(new Bean("mr","firstName1","middleName1","lastName1"));
            //Excel sheet name. 0 (number)represents first sheet
            WritableSheet sheet = workbook.createSheet("sheet1", 0);
            // column and row title
            sheet.addCell(new Label(0, 0, "NameInitial"));
            sheet.addCell(new Label(1, 0, "firstName"));
            sheet.addCell(new Label(2, 0, "middleName"));
            sheet.addCell(new Label(3, 0, "lastName"));

            for (int i = 0; i < listdata.size(); i++) {
                sheet.addCell(new Label(0, i + 1, listdata.get(i).getInitial()));
                sheet.addCell(new Label(1, i + 1, listdata.get(i).getFirstName()));
                sheet.addCell(new Label(2, i + 1, listdata.get(i).getMiddleName()));
                sheet.addCell(new Label(3, i + 1, listdata.get(i).getLastName()));
            }
        } catch (Exception e) {
            e.printStackTrace();
        }

    }

    void createSecondSheet() {

        try {
            List<Bean> listdata = new ArrayList<>();
            listdata.add(new Bean("mr","firstName1","middleName1","lastName1"));
            listdata.add(new Bean("mr","firstName1","middleName1","lastName1"));
            listdata.add(new Bean("mr","firstName1","middleName1","lastName1"));
            //Excel sheet name. 0 (number)represents first sheet
            WritableSheet sheet = workbook.createSheet("sheet2", 0);
            // column and row title
            sheet.addCell(new Label(0, 0, "NameInitial"));
            sheet.addCell(new Label(1, 0, "firstName"));
            sheet.addCell(new Label(2, 0, "middleName"));
            sheet.addCell(new Label(3, 0, "lastName"));

            for (int i = 0; i < listdata.size(); i++) {
                sheet.addCell(new Label(0, i + 1, listdata.get(i).getInitial()));
                sheet.addCell(new Label(1, i + 1, listdata.get(i).getFirstName()));
                sheet.addCell(new Label(2, i + 1, listdata.get(i).getMiddleName()));
                sheet.addCell(new Label(3, i + 1, listdata.get(i).getLastName()));
            }
        } catch (Exception e) {
            e.printStackTrace();
        }

    }

Excel Sheet에서 데이터 읽기

 public void readDataFromExcelSheet() {
        List<Bean> listOfBean = new ArrayList<>();
        try {
            String filename = "ExcelsheetName.xls";
            // Creating Input Stream
            File sd = Environment.getExternalStorageDirectory();
            File directory = new File(sd.getAbsolutePath());
            File file = new File(directory, filename);
            Workbook workbook = null;
            WorkbookSettings ws = new WorkbookSettings();
            ws.setGCDisabled(true);
            workbook = Workbook.getWorkbook(file, ws);

            int noOfSheets = workbook.getNumberOfSheets();//this is return how many sheets available in excelsheet
            String sheetsNames[] = workbook.getSheetNames();//this is return all sheets names available in excelsheet
            for (int x = 0; x < noOfSheets; x++)//here take all sheets
            {
                Sheet sheet = workbook.getSheet(x);//here i taken first sheet
                int rowCount = sheet.getRows();//count total number of row or data in that sheet
                for (int i = 0; i < rowCount; i++) {//take every row data
                    Cell[] column = sheet.getRow(i);//take all data of one row

                /*
                 for taking one by one column data 
                */
                    for (int j = 0; j < column.length; j++) {//take every column data of row
                        System.out.print("" + column[j].getContents() + "\t");//take one by one data
                    }
                /*
                 for taking column data  
                */
                    listOfBean.add(new Bean(column[0].getContents(), column[1].getContents(), column[2].getContents(), column[3].getContents()));

                }

//                if you want take different data from different sheets then use switch case
                Sheet sheet1;
                int rowCount1;
                switch (x) {
                    case 0:
                        //write code for sheet 0 read data
                        sheet1 = workbook.getSheet(0);//here i taken first sheet
                        rowCount1 = sheet1.getRows();//count total number of row or data in that sheet
                        for (int i = 0; i < rowCount1; i++) {//take every row data
                            Cell[] column = sheet1.getRow(i);//take all data of one row
                            listOfBean.add(new Bean(column[0].getContents(), column[1].getContents(), column[2].getContents(), column[3].getContents()));
                        }
                        break;
                    case 1:
                        //write code for sheet 1 read data
                        sheet1 = workbook.getSheet(1);//here i taken first sheet
                        rowCount1 = sheet1.getRows();//count total number of row or data in that sheet
                        for (int i = 0; i < rowCount1; i++) {//take every row data
                            Cell[] column = sheet1.getRow(i);//take all data of one row
                            listOfBean.add(new Bean(column[0].getContents(), column[1].getContents(), column[2].getContents(), column[3].getContents()));
                        }
                        break;
                }


            }

        } catch (Exception e) {
            e.printStackTrace();
        }
    }

안드로이드 워크시트 라이브러리를 사용하면 됩니다.

그래플에 추가해 주세요.implementation 'com.github.elirehema:worksheet:0.0.1'

액티비티 클래스의 엉덩이에 실장

public class MainActivity extends AppCompatActivity {
private WorkSheet workSheet;
private Button button;
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    button = findViewById(R.id.create_excel_sheet);
    final String path  = "ExternalFilePath";
    
    button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            try {
                workSheet = new WorkSheet.Builder(getApplicationContext(), path)
                        .setSheet(List<Object>)
                        .writeSheet();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    });


}}

더 읽기

언급URL : https://stackoverflow.com/questions/8006087/how-to-create-an-excel-file-in-android