Android导出数据到Excel

实现这个功能，需要jxl.jar
1、导出文件的实体类
简单地序列化了一下

package com.joker.exceldemo;

import java.io.Serializable;

/**
 * Created by joker on 2016/1/30.
 */
public class Order implements Serializable {
    public String id;
    public String restPhone;
    public String restName;
    public String receiverAddr;

    public Order() {
    }

    public Order(String id, String restPhone, String restName, String receiverAddr) {
        this.id = id;
        this.restPhone = restPhone;
        this.restName = restName;
        this.receiverAddr = receiverAddr;
    }

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getRestPhone() {
        return restPhone;
    }

    public void setRestPhone(String restPhone) {
        this.restPhone = restPhone;
    }

    public String getRestName() {
        return restName;
    }

    public void setRestName(String restName) {
        this.restName = restName;
    }

    public String getReceiverAddr() {
        return receiverAddr;
    }

    public void setReceiverAddr(String receiverAddr) {
        this.receiverAddr = receiverAddr;
    }
}

2、导出文件的帮助类
没什么好说的代码比较易懂

package com.joker.exceldemo;

import android.content.Context;
import android.os.Environment;
import android.util.Log;
import android.widget.Toast;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.List;

import jxl.Workbook;
import jxl.format.Alignment;
import jxl.format.CellFormat;
import jxl.format.Colour;
import jxl.format.VerticalAlignment;
import jxl.write.Label;
import jxl.write.WritableCellFormat;
import jxl.write.WritableFont;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;
import jxl.write.WriteException;
import jxl.write.biff.RowsExceededException;

/**
 * Created by joker on 2016/1/30.
 */
public class ExcelUtils {
    public static void writeExcel(Context context, List exportOrder, String fileName) {
        if (!Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
            Toast.makeText(context, "SD卡不可用", Toast.LENGTH_SHORT).show();
            return;
        }
        String[] title = {"编号", "姓名", "电话", "地址"};
        File file = new File("/data/data/com.joker.exceldemo/" + fileName + ".xls");
        Log.d("zhanglinshu", "fileNameStr :" + file.getName());
        //创建Excel工作表
        WritableWorkbook wwb = null;
        try {
            OutputStream os = new FileOutputStream(file);
            wwb = Workbook.createWorkbook(os);
            //添加第一个工作表并设置第一个Sheet的名字
            WritableSheet sheet = wwb.createSheet("订单", 0);
            Label label;
            for (int i = 0; i < title.length; i++) {
                //Label(x,y,z)代表单元格的第x+1列，第y+1行，内容z
                //在Label对象的子对象中指明单元格的位置和内容
                label = new Label(i, 0, title[i], getHeader());
                //将定义好的单元格添加到工作表中
                sheet.addCell(label);
            }
            for (int i = 0; i < exportOrder.size(); i++) {
                Order order = exportOrder.get(i);
                Label orderNum = new Label(0, i + 1, order.getId());
                Label restaurant = new Label(1, i + 1, order.getRestName());
                Label nameLabel = new Label(2, i + 1, order.getRestPhone());
                Label address = new Label(3, i + 1, order.getReceiverAddr());
                sheet.addCell(orderNum);
                sheet.addCell(restaurant);
                sheet.addCell(nameLabel);
                sheet.addCell(address);
                Toast.makeText(context, "写入成功", Toast.LENGTH_LONG).show();
            }
            wwb.write();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (RowsExceededException e) {
            e.printStackTrace();
        } catch (WriteException e) {
            e.printStackTrace();
        } finally {
            //
            if (wwb != null) {
                try {
                    wwb.close();
                } catch (IOException e) {
                    e.printStackTrace();
                } catch (WriteException e) {
                    e.printStackTrace();
                }
            }
        }
    }

    private static CellFormat getHeader() {
        WritableFont font = new WritableFont(WritableFont.TIMES, 10, WritableFont.BOLD);
        try {
            font.setColour(Colour.BLUE);
        } catch (WriteException e) {
            e.printStackTrace();
        }
        WritableCellFormat format = new WritableCellFormat(font);
        try {
            format.setAlignment(Alignment.CENTRE); //左右居中
            format.setVerticalAlignment(VerticalAlignment.CENTRE); //上下居中
            format.setBackground(Colour.YELLOW);
        } catch (WriteException e) {
            e.printStackTrace();
        }
        return format;
    }

}

导出只需要调用

    ExcelUtils.writeExcel(MainActivity.this, orders, "excel_joker");

就可以了