将mysql表中的数据导入excel表

package com.aishidai.web.ceshi;

import com.aishidai.entitydto.Test;
import com.aishidai.manager.TestCe;
import jxl.Workbook;
import jxl.write.Label;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;
import net.sf.json.JSONObject;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;

import java.io.File;
import java.util.List;
@Controller
public class PushMysqlToExcel {

    @Autowired
    TestCe testCe;

    @RequestMapping(value ="queryexcel",method = {RequestMethod.GET,RequestMethod.POST})
    @ResponseBody
    public String  query() {
        JSONObject jsonObject = new JSONObject();
        jsonObject.put("success",false);
        try {
            WritableWorkbook wwb = null;

            // 创建可写入的Excel工作簿
            String fileName = "D://book1.xls";
            File file=new File(fileName);
            if (!file.exists()) {
                file.createNewFile();
            }
            //以fileName为文件名来创建一个Workbook
            wwb = Workbook.createWorkbook(file);

            // 创建工作表
            WritableSheet ws = wwb.createSheet("Test Sheet1", 0);

            //查询数据库中所有的数据
            List<Test> list= testCe.queryAll();
            //要插入到的Excel表格的行号，默认从0开始
            //Label labelId= new Label(0, 0, "编号(id)");//表示第
            Label labelName= new Label(0, 0, "姓名(name)");
            Label labelSex= new Label(1, 0, "性别(sex)");
            Label labelNum= new Label(2, 0, "薪水(num)");

            //ws.addCell(labelId);
            ws.addCell(labelName);
            ws.addCell(labelSex);
            ws.addCell(labelNum);
            for (int i = 0; i < list.size(); i++) {

                //Label labelId_i= new Label(0, i+1, list.get(i).getId()+"");
                Label labelName_i= new Label(0, i+1, list.get(i).getName());
                Label labelSex_i= new Label(1, i+1, list.get(i).getSex());
                Label labelNum_i= new Label(2, i+1, list.get(i).getPhone()+"");
                //ws.addCell(labelId_i);
                ws.addCell(labelName_i);
                ws.addCell(labelSex_i);
                ws.addCell(labelNum_i);
            }

            //写进文档
            wwb.write();
            // 关闭Excel工作簿对象
            wwb.close();

        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        jsonObject.put("success",true);
        return jsonObject.toString();
    }

}


依赖

<dependency>
    <groupId>net.sourceforge.jexcelapi</groupId>
    <artifactId>jxl</artifactId>
    <version>2.6.12</version>
</dependency>

转载：
https://www.cnblogs.com/zyw-205520/p/3762954.html