个人作业阶段二 6

将系统数据导出至，excel表格

package com.example.myapplication;

import android.content.Context;
import android.os.Build;
import android.os.Bundle;
import android.os.Environment;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast;

import androidx.appcompat.app.AppCompatActivity;

import org.litepal.LitePal;

import java.io.File;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import jxl.Workbook;
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 static com.example.myapplication.RegisterActivity.username;
import static com.example.myapplication.RegisterActivity.userphone;
import static com.example.myapplication.RegisterActivity.userxuehao;

public class ExcelActivity extends AppCompatActivity {

    public static WritableFont arial12font = null;
    public static WritableCellFormat arial12format = null;
    public static WritableFont arial12font_ = null;
    public static WritableCellFormat arial12format_ = null;
    public static WritableFont arial12font_1 = null;
    public static WritableCellFormat arial12format_1 = null;
    public static WritableFont arial18font = null;
    public static WritableCellFormat arial18format = null;
    public final static String UTF8_ENCODING = "UTF-8";
    public final static String GBK_ENCODING = "GBK";

    private ArrayList<ArrayList<String>> recordList;
    private String excelname;
    private TextView tv_pass;
    private String excelxuehao;
    private String excelphone;
    private String exceldanwei = "石家庄铁道大学";
    private String exceldate;
    private static String[] title = {"日期", "每日体温", "健康状况", "当日所在地", "备注"};
    private File file;
    private String fileName;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_excel);

        tv_pass = findViewById(R.id.out_path);

        //填报日期
        SimpleDateFormat simpleDateFormat1 = new SimpleDateFormat("yyyy-MM-dd");
        Date date1 = new Date(System.currentTimeMillis());
        exceldate = simpleDateFormat1.format(date1);

        //姓名
        excelname = username;

        //学号
        excelxuehao = userxuehao;


        //手机号
        excelphone = userphone;



    }

    /**
     * 导出excel
     * @param view
     */

    public void exportExcel(View view) {
        file = new File(getSDPath(this) + "/Record");
        makeDir(file);
        initExcel(file.toString() + "/体温登记表.xls");
        fileName = getSDPath(this) + "/Record/体温登记表.xls";
        tv_pass.setText("Excel表格已导出至" + fileName);
    }

    public static void format() {
        try {
            arial12font = new WritableFont(WritableFont.createFont("宋体"), 12);
            arial12format = new WritableCellFormat(arial12font);
            arial12format.setBorder(jxl.format.Border.ALL, jxl.format.BorderLineStyle.THIN);

            arial12font_ = new WritableFont(WritableFont.createFont("楷体"), 12, WritableFont.BOLD);
            arial12format_ = new WritableCellFormat(arial12font_);
            arial12format_.setBorder(jxl.format.Border.ALL, jxl.format.BorderLineStyle.THIN);

            arial12font_1 = new WritableFont(WritableFont.createFont("黑体"), 12);
            arial12format_1 = new WritableCellFormat(arial12font_1);
            arial12format_1.setBorder(jxl.format.Border.ALL, jxl.format.BorderLineStyle.THIN);
            arial12format_1.setVerticalAlignment(jxl.format.VerticalAlignment.CENTRE);
            arial12format_1.setWrap(true);

            arial18font = new WritableFont(WritableFont.createFont("宋体"), 18, WritableFont.BOLD);
            arial18format = new WritableCellFormat(arial18font);
            arial18format.setAlignment(jxl.format.Alignment.CENTRE);//对齐格式
            arial18format.setBorder(jxl.format.Border.ALL, jxl.format.BorderLineStyle.THIN); //设置边框
        } catch (WriteException e) {
            e.printStackTrace();
        }

    }

    public void initExcel(String fileName) {
        format();
        WritableWorkbook workbook=null;

        try {
            File file = new File(fileName);
            if (!file.exists()) {
                file.createNewFile();
            }
            workbook = Workbook.createWorkbook(file);
            WritableSheet sheet = workbook.createSheet("体温登记表", 0);
            sheet.mergeCells(0, 0, 6, 0);

            Label header = new Label(0, 0, "学生14天健康情况登记表", arial18format);
            sheet.addCell(header);

            sheet.mergeCells(0, 1, 3, 1);
            sheet.addCell(new Label(0, 1, "单位名称：" + exceldanwei, arial12format_));

            sheet.mergeCells(4, 1, 6, 1);
            sheet.addCell(new Label(4, 1, "填表日期：" + exceldate, arial12format_));

            sheet.addCell(new Label(0, 2, "姓名", arial12format));
            sheet.addCell(new Label(1, 2, excelname, arial12format));

            sheet.mergeCells(1, 2, 3, 2);
            sheet.addCell(new Label(4, 2, "学号：", arial12format));
            sheet.addCell(new Label(5, 2, excelxuehao, arial12format));

            sheet.mergeCells(5, 2, 6, 2);
            sheet.addCell(new Label(0, 3, "目前健康状况：", arial12format));
            sheet.mergeCells(1, 3, 3, 3);
            sheet.addCell(new Label(1, 3, "健康", arial12format));

            sheet.addCell(new Label(4, 3, "手机号", arial12format));
            sheet.addCell(new Label(5, 3, excelphone, arial12format));
            sheet.mergeCells(5, 3, 6, 3);
            sheet.mergeCells(0, 4, 6, 4);
            sheet.addCell(new Label(0, 4, "每日体温、健康状况监测（周期14天）", arial18format));
            String[] colName = {"日期", "每日体温℃", "健康状况", "当日所在地", "备注"};
            sheet.mergeCells(3, 5, 4, 5);
            sheet.mergeCells(5, 5, 6, 5);

            for (int col = 0; col < 3; col++) {
                sheet.addCell(new Label(col, 5, colName[col], arial12format));
            }
            sheet.addCell(new Label(3, 5, colName[3], arial12format));
            sheet.addCell(new Label(5, 5, colName[4], arial12format));

            int j =6;

            List<Infomation> infomations = LitePal.where("zhu_name=?", excelname).find(Infomation.class);
            for(Infomation infomation:infomations) {

                    String ZK = "健康";
                    String DATE = infomation.getZhu_date().toString();
                    String ADD = infomation.getZhu_add().toString();
                    String BEIZHU = infomation.getZhu_shuoming().toString();
                    String TIWEN = infomation.getZhu_tiwen().toString();

                    sheet.addCell(new Label(0, j, DATE, arial12format));
                    sheet.addCell(new Label(1, j, TIWEN, arial12format));
                    sheet.addCell(new Label(2, j, ZK, arial12format));

                    sheet.mergeCells(3, j, 4, j);
                    sheet.addCell(new Label(3, j, ADD, arial12format));
                    sheet.mergeCells(5, j, 6, j);
                    sheet.addCell(new Label(5, j,BEIZHU, arial12format));
                    j++;
            }

            sheet.mergeCells(0,20,6,23);
            sheet.addCell(new Label(0,20,"本人承诺：自觉履行疫情防控责任和义务，保证以上填报信息全部属实，如有隐瞒，自愿承担相应法律后果。",arial12format_1));
            sheet.mergeCells(0,24,3,24);
            sheet.addCell(new Label(0,24,"本人签字：",arial12format));
            sheet.mergeCells(4,24,6,24);
            sheet.addCell(new Label(4,24,"签字日期：",arial12format));
            //sheet.mergeCells(5,24,6,24);
            workbook.write();
            workbook.close();
            Toast.makeText(ExcelActivity.this, "生成成功", Toast.LENGTH_SHORT).show();
        }catch (Exception e) {
            e.printStackTrace();
        }finally {
            if (workbook != null) {
                try {
                    workbook.close();
                } catch (Exception e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
        }
    }

    /**
     * 将数据集合，转化成ArrayList<ArrayList<String>></String>
     * @param context
     * @return
     */
    public String getSDPath(Context context) {
        File sdDir = null;
        boolean sdCardExist = Environment.getExternalStorageState().equals(
                Environment.MEDIA_MOUNTED);// 判断sd卡是否存在

        if (sdCardExist) {
            if (Build.VERSION.SDK_INT>=29){
                //Android10之后
                sdDir = context.getExternalFilesDir(null);
            }else {
                sdDir =getExternalFilesDir(Environment.DIRECTORY_PICTURES);;// 获取SD卡根目录

            }
        } else {
            sdDir = Environment.getRootDirectory();// 获取跟目录
        }
        return sdDir.toString();
    }

    public  void makeDir(File dir) {
        if (!dir.getParentFile().exists()) {
            makeDir(dir.getParentFile());
        }
        dir.mkdir();
    }

}