Android操作Excel文件的功能实现

importjava.io.File;

importjava.io.IOException;

importjava.io.InputStream;

importjava.util.ArrayList;

importjava.util.List;

importjava.util.zip.ZipEntry;

importjava.util.zip.ZipException;

importjava.util.zip.ZipFile;

importorg.xmlpull.v1.XmlPullParser;

importorg.xmlpull.v1.XmlPullParserException;

importandroid.util.Log;

importandroid.util.Xml;

importjxl.Sheet;

importjxl.Workbook;

importjxl.write.Label;

importjxl.write.WritableSheet;

importjxl.write.WritableWorkbook;

publicclassExcelUtil {

 privatefinalstaticString TAG ="ExcelUtil";

 publicstaticList> read(String file_name) {

  String extension = file_name.lastIndexOf(".") == -1?"": file_name

    .substring(file_name.lastIndexOf(".") +1);

  if("xls".equals(extension)) {// 2003

   Log.d(TAG,"read2003XLS, extension:"+ extension);

   returnread2003XLS(file_name);

  }elseif("xlsx".equals(extension)) {

   Log.d(TAG,"read2007XLSX, extension:"+ extension);

   returnread2007XLSX(file_name);

  }else{

   Log.d(TAG,"不支持的文件类型, extension:"+ extension);

   returnnull;

  }

 }

 publicstaticList> read2003XLS(String path) {

  List> dataList =newArrayList>();

  try{

   Workbook book = Workbook.getWorkbook(newFile(path));

   // book.getNumberOfSheets(); //获取sheet页的数目

   // 获得第一个工作表对象

   Sheet sheet = book.getSheet(0);

   intRows = sheet.getRows();

   intCols = sheet.getColumns();

   Log.d(TAG,"当前工作表的名字:"+ sheet.getName());

   Log.d(TAG,"总行数:"+ Rows +", 总列数:"+ Cols);

   List

   String val =null;

   for(inti =0; i < Rows; i++) {

    booleannull_row =true;

    for(intj =0; j < Cols; j++) {

     // getCell(Col,Row)获得单元格的值，注意getCell格式是先列后行，不是常见的先行后列

     Log.d(TAG, (sheet.getCell(j, i)).getContents() +"t");

     val = (sheet.getCell(j, i)).getContents();

     if(val ==null|| val.equals("")) {

      val ="null";

     }else{

      null_row =false;

     }

     objList.add(val);

    }

    Log.d(TAG,"n");

    if(null_row !=true) {

     dataList.add(objList);

     null_row =true;

    }

    objList =newArrayList

   }

   book.close();

  }catch(Exception e) {

   Log.d(TAG, e.getMessage());

  }

  returndataList;

 }

 publicstaticList> read2007XLSX(String path) {

  List> dataList =newArrayList>();

  String str_c ="";

  String v =null;

  booleanflat =false;

  Listls =newArrayList();

  try{

   ZipFile xlsxFile =newZipFile(newFile(path));

   ZipEntry sharedStringXML = xlsxFile.getEntry("xl/sharedStrings.xml");

   if(sharedStringXML ==null) {

    Log.d(TAG,"空文件:"+ path);

    returndataList;

   }

   InputStream inputStream = xlsxFile.getInputStream(sharedStringXML);

   XmlPullParser xmlParser = Xml.newPullParser();

   xmlParser.setInput(inputStream,"utf-8");

   intevtType = xmlParser.getEventType();

   while(evtType != XmlPullParser.END_DOCUMENT) {

    switch(evtType) {

    caseXmlPullParser.START_TAG:

     String tag = xmlParser.getName();

     if(tag.equalsIgnoreCase("t")) {

      ls.add(xmlParser.nextText());

     }

     break;

    caseXmlPullParser.END_TAG:

     break;

    default:

     break;

    }

    evtType = xmlParser.next();

   }

   ZipEntry sheetXML = xlsxFile.getEntry("xl/worksheets/sheet1.xml");

   InputStream inputStreamsheet = xlsxFile.getInputStream(sheetXML);

   XmlPullParser xmlParsersheet = Xml.newPullParser();

   xmlParsersheet.setInput(inputStreamsheet,"utf-8");

   intevtTypesheet = xmlParsersheet.getEventType();

   List

   String val =null;

   booleannull_row =true;

    while(evtTypesheet != XmlPullParser.END_DOCUMENT) {

    switch(evtTypesheet) {

    caseXmlPullParser.START_TAG:

     String tag = xmlParsersheet.getName();

     if(tag.equalsIgnoreCase("row")) {

     }elseif(tag.equalsIgnoreCase("c")) {

      String t = xmlParsersheet.getAttributeValue(null,"t");

      if(t !=null) {

       flat =true;// 字符串型

       // Log.d(TAG, flat + "有");

      }else{// 非字符串型，可能是整型

       // Log.d(TAG, flat + "没有");

       flat =false;

      }

     }elseif(tag.equalsIgnoreCase("v")) {

      v = xmlParsersheet.nextText();

      if(v !=null) {

       if(flat) {

        str_c += ls.get(Integer.parseInt(v)) +" ";

        val = ls.get(Integer.parseInt(v));

        null_row =false;

       }else{

        str_c += v +" ";

        val = v;

       }

       objList.add(val);

      }

     }

     break;

    caseXmlPullParser.END_TAG:

     if(xmlParsersheet.getName().equalsIgnoreCase("row") && v !=null) {

      str_c +="n";

      if(null_row !=true) {

       dataList.add(objList);

       null_row =true;

      }

      objList =newArrayList

     }

     break;

    }

    evtTypesheet = xmlParsersheet.next();

   }

   Log.d(TAG, str_c);

  }catch(ZipException e) {

   e.printStackTrace();

  }catch(IOException e) {

   e.printStackTrace();

  }catch(XmlPullParserException e) {

   e.printStackTrace();

  }

  if(str_c ==null) {

   str_c ="解析文件出现问题";

   Log.d(TAG, str_c);

  }

  returndataList;

 }

 publicstaticintwriteExcel(String file_name, List> data_list) {

  try{

   WritableWorkbook book = Workbook.createWorkbook(newFile(file_name));

   WritableSheet sheet1 = book.createSheet("sheet1",0);

   for(inti =0; i < data_list.size(); i++) {

    List

    for(intj =0; j < obj_list.size(); j++) {

     Label label =newLabel(j, i, obj_list.get(j).toString());

     sheet1.addCell(label);

    }

   }

   book.write();

   book.close();

  }catch(Exception e) {

   e.printStackTrace();

   return-1;

  }

  return0;

 }