Android Excel导入

package com.omniteaching.Exceldemo;import android.content.Context;import android.os.Bundle;import android.os.Environment;import android.support.v7.app.AppCompatActivity;import android.widget.Toast;import java.io.File;import java.io.FileInputStream;import java.io.IOException;import java.io.InputStream;import java.util.ArrayList;import java.util.HashMap;import java.util.Iterator;import java.util.List;import java.util.Map;import jxl.Workbook;import jxl.WorkbookSettings;import jxl.format.Colour;import jxl.write.Label;import jxl.write.WritableCell;import jxl.write.WritableCellFormat;import jxl.write.WritableFont;import jxl.write.WritableSheet;import jxl.write.WritableWorkbook;import jxl.write.WriteException;public class MainActivity extends AppCompatActivity {    PRivate static WritableFont arial14font = null;    private static WritableCellFormat arial14format = null;    private static WritableFont arial10font = null;    private static WritableCellFormat arial10format = null;    private static WritableFont arial12font = null;    private static WritableCellFormat arial12format = null;    private final static String UTF8_ENCODING = "UTF-8";    private final static String SHEET_NAME = "His";    private String[] titles = new String[]{            "名字", "年龄"    };    private static String path = Environment.getExternalStorageDirectory() + File.separator + "wwm"            + File.separator + "导出记录" + ".xls";    private HashMap<Integer, ArrayList<String>> mDataMap = new HashMap<>();    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        initData();        MainActivity.exportToExcel(titles, mDataMap, this, path);    }    private void initData() {        ArrayList<String> dataList1 = new ArrayList<>();        dataList1.add("小一");        dataList1.add("11");        mDataMap.put(0, dataList1);        ;        ArrayList<String> dataList2 = new ArrayList<>();        dataList2.add("小er");        dataList2.add("12");        mDataMap.put(1, dataList2);        ArrayList<String> dataList3 = new ArrayList<>();        dataList3.add("小san");        dataList3.add("13");        mDataMap.put(2, dataList3);        ArrayList<String> dataList4 = new ArrayList<>();        dataList4.add("小si");        dataList4.add("14");        mDataMap.put(3, dataList4);        ArrayList<String> dataList5 = new ArrayList<>();        dataList5.add("小wu");        dataList5.add("15");        mDataMap.put(4, dataList5);    }    public static void format() {        try {            arial14font = new WritableFont(WritableFont.ARIAL, 14, WritableFont.BOLD);            arial14font.setColour(jxl.format.Colour.LIGHT_BLUE);            arial14format = new WritableCellFormat(arial14font);            arial14format.setAlignment(jxl.format.Alignment.CENTRE);            arial14format.setBackground(jxl.format.Colour.VERY_LIGHT_YELLOW);            arial14format.setBorder(jxl.format.Border.ALL, jxl.format.BorderLineStyle.THIN);            /* 标题部分 */            arial10font = new WritableFont(WritableFont.ARIAL, 10, WritableFont.BOLD);            arial10format = new WritableCellFormat(arial10font);            arial10format.setAlignment(jxl.format.Alignment.CENTRE);            arial10format.setBackground(Colour.VERY_LIGHT_YELLOW);            arial10format.setBorder(jxl.format.Border.ALL, jxl.format.BorderLineStyle.THIN);            /* 内容部分 */            arial12font = new WritableFont(WritableFont.ARIAL, 12);            arial12format = new WritableCellFormat(arial12font);            arial12format.setBorder(jxl.format.Border.ALL, jxl.format.BorderLineStyle.THIN);        } catch (WriteException e) {            e.printStackTrace();        }    }    /**     * 导出历史记录到EXCEL     */    public static void exportToExcel(String[] titles, HashMap<Integer, ArrayList<String>>            checkedDataMap, Context context, String filePath) {//        File file = new File(FileUtils.getSDPath());//        String filePath = file.toString() + "/" + fileName;//        makeDir(file);        MainActivity.initExcel(filePath, titles);        MainActivity.writeObjListToExcel(dealWithExportData(checkedDataMap),                filePath, context);    }    public static void initExcel(String filePath, String[] colName) {        format();        WritableWorkbook workbook = null;        try {            File file = new File(filePath);            if (file.exists()) {                file.delete();            }            file.createNewFile();            workbook = Workbook.createWorkbook(file);            WritableSheet sheet = workbook.createSheet(SHEET_NAME, 0);            sheet.addCell((WritableCell) new Label(0, 0, filePath, arial14format));            for (int col = 0; col < colName.length; col++) {                sheet.addCell(new Label(col, 0, colName[col], arial10format));            }            workbook.write();        } catch (Exception e) {            e.printStackTrace();        } finally {            if (workbook != null) {                try {                    workbook.close();                } catch (Exception e) {                    e.printStackTrace();                }            }        }    }    @SuppressWarnings("unchecked")    public static <T> void writeObjListToExcel(List<T> objList, String fileName, Context c) {        if (objList != null && objList.size() > 0) {            WritableWorkbook writeBook = null;            InputStream in = null;            try {                WorkbookSettings setEncode = new WorkbookSettings();                setEncode.setEncoding(UTF8_ENCODING);                in = new FileInputStream(new File(fileName));                Workbook workbook = Workbook.getWorkbook(in);                writeBook = Workbook.createWorkbook(new File(fileName), workbook);                WritableSheet sheet = writeBook.getSheet(0);                for (int j = 0; j < objList.size(); j++) {                    ArrayList<String> list = (ArrayList<String>) objList.get(j);                    for (int i = 0; i < list.size(); i++) {                        sheet.addCell(new Label(i, j + 1, list.get(i), arial12format));                    }                }                writeBook.write();                Toast.makeText(c, "保存到" + path, Toast.LENGTH_SHORT).show();            } catch (Exception e) {                e.printStackTrace();            } finally {                if (writeBook != null) {                    try {                        writeBook.close();                    } catch (Exception e) {                        e.printStackTrace();                    }                }                if (in != null) {                    try {                        in.close();                    } catch (IOException e) {                        e.printStackTrace();                    }                }            }        }    }    private static ArrayList<ArrayList<String>> dealWithExportData(HashMap<Integer,            ArrayList<String>> checkedDataMap) {        if (null != checkedDataMap) {            ArrayList<ArrayList<String>> bill2List = new ArrayList<ArrayList<String>>();            Iterator iterator = checkedDataMap.entrySet().iterator();            while (iterator.hasNext()) {                Map.Entry entry = (Map.Entry) iterator.next();                bill2List.add((ArrayList<String>) entry.getValue());            }            return bill2List;        }        return null;    }}
需要用到的包待会儿上传 excel.jar