EasyPoiUtil纯代码生成excel进行下载

前言：使用代码生成excel主要用于比较简单设计的excel,如需使用比较复杂的excel报表导出可看另外一篇文章

一.导入jar包

        <dependency>
            <groupId>cn.afterturn</groupId>
            <artifactId>easypoi-base</artifactId>
            <version>3.0.3</version>
            <exclusions>
                <exclusion>
                    <artifactId>commons-lang3</artifactId>
                    <groupId>org.apache.commons</groupId>
                </exclusion>
                <exclusion>
                    <artifactId>guava</artifactId>
                    <groupId>com.google.guava</groupId>
                </exclusion>
            </exclusions>
        </dependency>

二.代码应用

导出的实体类属性(可利用@Excel设置单元格属性)

package com.xinke.sunshine_ebid.dal.entity;

import cn.afterturn.easypoi.excel.annotation.Excel;
import lombok.Data;

@Data
public class TestEntity {
    @Excel(name = "姓名", orderNum = "1", width = 15)
    private String name;
    @Excel(name = "电话", orderNum = "2", width = 20)
    private String phone;
    @Excel(name = "地址", orderNum = "3", width = 30)
    private String address;
}

控制层

package com.xinke.sunshine_ebid.webapp;

import cn.afterturn.easypoi.excel.ExcelExportUtil;
import cn.afterturn.easypoi.excel.entity.TemplateExportParams;
import com.xinke.sunshine_ebid.common.utils.EasyPoiUtils;
import com.xinke.sunshine_ebid.dal.entity.TestEntity;
import com.xinke.sunshine_ebid.service.TestService;
import org.apache.poi.ss.usermodel.Workbook;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletResponse;
import java.util.List;
import java.util.Map;

@CrossOrigin
@RestController
@RequestMapping(value = "/Test")
public class TestController {
    @Resource
    private TestService testService;

    /**
     * 使用过代码直接生成excel表格
     * @param response
     * @throws Exception
     */
    @GetMapping("/test")
    public void test(HttpServletResponse response) throws Exception{
        List<TestEntity> data = testService.test();
        EasyPoiUtils.exportExcel(data, null, "设置的表格名称", TestEntity.class,"设置的文件名称",response);
    }
}

业务逻辑层

package com.xinke.sunshine_ebid.service;

import com.xinke.sunshine_ebid.dal.entity.TestEntity;
import org.springframework.stereotype.Service;
import java.util.ArrayList;
import java.util.List;
@Service
public class TestService {

    public List<TestEntity> test() throws Exception{
        // 封装参数
        List<TestEntity> list = new ArrayList<>();
        TestEntity test = new TestEntity();
        test.setName("瓜");
        test.setPhone("18888888888");
        test.setAddress("PD");
        list.add(test);
        TestEntity test2 = new TestEntity();
        test2.setName("瓜2");
        test2.setPhone("1999999999");
        test2.setAddress("PD2");
        list.add(test2);
        return list;
    }
}

三.测试

调用接口

localhost:8087/Test/test

导出成功