YunNanDsBase/src/main/java/com/dsideal/base/Tools/ExportExcel.java

package com.dsideal.base.Tools;

import com.dsideal.base.DataEase.Model.DataEaseModel;
import com.dsideal.base.Tools.Util.SshConnectUtil;
import com.dsideal.base.Util.ExcelCommonUtil;
import com.jcraft.jsch.JSchException;
import com.jcraft.jsch.Session;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import com.jfinal.plugin.activerecord.Db;
import com.jfinal.plugin.activerecord.Record;

public class ExportExcel {
    public static DataEaseModel dm = new DataEaseModel();

    public static void main(String[] args) throws IOException, JSchException {
        //通过ssh链接到Mysql数据库
        Session session = SshConnectUtil.Init();

        //Excel的保存目录
        String exportPath = "D:/360Downloads/Excel";
        File directory = new File(exportPath);
        // 检查目录是否存在
        if (!directory.exists()) {
            directory.mkdirs();
        }
        String privinceName = "云南省";
        //一、导出省的数据集
        System.out.println("正在处理省数据集...");
        List<Record> list = dm.getDataSetByIdentityId(1);
        System.out.println("数据集个数=" + list.size());
        for (Record record : list) {
            String tableName = record.getStr("table_name");
            String dataSetName = record.getStr("dataset_name");
            System.out.println("正在处理数据集：" + dataSetName);
            //对此表中的数据进行直接导出EXCEL
            String sql = "select * from `" + tableName + "`";
            List<Record> tableData = Db.use(DataEaseModel.DB_NAME).find(sql);
            String excelFileName = "【" + privinceName + "】" + dataSetName + ".xlsx";
            ExcelCommonUtil.writeExcel(tableData, exportPath + "/" + excelFileName, true);
        }
        //二、导出市的数据集
        System.out.println("正在处理市数据集...");
        String city_name = "昆明市";
        list = dm.getDataSetByIdentityId(2);
        System.out.println("数据集个数=" + list.size());
        for (Record record : list) {
            String tableName = record.getStr("table_name");
            String dataSetName = record.getStr("dataset_name");
            System.out.println("正在处理数据集：" + dataSetName);

            Record cityRecord = dm.getAreaByName(city_name);
            String cityName = cityRecord.getStr("area_name");
            String sql = "select * from `" + tableName + "` where `行政区划`=?";
            List<Record> tableData = Db.use(DataEaseModel.DB_NAME).find(sql, cityName);
            String excelFileName = "【" + cityName + "】" + dataSetName + ".xlsx";
            ExcelCommonUtil.writeExcel(tableData, exportPath + "/" + excelFileName, true);
        }
        //三、导出县区的数据集
        System.out.println("正在处理县区数据集...");
        String area_name = "寻甸县";
        list = dm.getDataSetByIdentityId(3);
        System.out.println("数据集个数=" + list.size());
        for (Record record : list) {
            String tableName = record.getStr("table_name");
            String dataSetName = record.getStr("dataset_name");
            System.out.println("正在处理数据集：" + dataSetName);

            Record areaRecord = dm.getAreaByName(area_name);
            String areaName = areaRecord.getStr("area_name");
            String sql = "select * from `" + tableName + "` where `行政区划`=?";
            List<Record> tableData = Db.use(DataEaseModel.DB_NAME).find(sql, areaName);
            String excelFileName = "【" + areaName + "】" + dataSetName.replace("\\","") + ".xlsx";
            ExcelCommonUtil.writeExcel(tableData, exportPath + "/" + excelFileName, true);
        }
        System.out.println("导出完成！");
        //关闭Ssh链接
        session.disconnect();
    }
}