使用EasyExcel导出表格

痛定思痛。 2022-02-16 07:48 406阅读 0赞

### 前端代码 ###

/**
     *导出excel  用过layui的都看的懂
     */
    function exports() {
        layer.confirm('确定导出所有策略的信息？', {
            btn: ['确定', '取消']
        }, function(index){
            //按钮【按钮一】的回调
            location.href=prefix + '/exports';
            layer.close(index);
        }, function(index){
            //按钮【按钮二】的回调
        });
    }

### 后端代码 ###

@ExcelProperty是代表导出后这个属性对应的列名是什么  以及位置

package com.bootdo.cpm.domain;
    
    import com.alibaba.excel.annotation.ExcelProperty;
    import com.alibaba.excel.metadata.BaseRowModel;
    
    import java.io.Serializable;
    
    import javax.persistence.GeneratedValue;
    import javax.persistence.Id;
    
    import lombok.Data;
    
    
    /**
     * cpm策略表
    
     * 
     * @author hw
     * @email test@163.com
     * @date 2019-03-26 11:26:41
     */
    @Data
    public class CpmStrategyDO extends BaseRowModel implements Serializable {
    	private static final long serialVersionUID = 15353L;
    	
    	//标识id
    	@Id
    	@GeneratedValue(generator = "JDBC")
    	@ExcelProperty(value = "策略id",index = 0)
    	private Integer cpmId;
    	//名称标题
    	@ExcelProperty(value = "名称标题",index = 1)
    	private String cpmTitle;
    	//广告链接
    	@ExcelProperty(value = "广告链接",index = 2)
    	private String cpmUrl;
    	//持续范围时间开始日
    	@ExcelProperty(value = "持续范围时间开始日",index = 3)
    	private Object cpmBegindate;
    	//持续范围时间结束日
    	@ExcelProperty(value = "持续范围时间结束日",index =4)
    	private Object cpmEnddate;
    	//单个用户接触的数量
    	@ExcelProperty(value = "单个用户接触的数量",index =5)
    	private Integer userNum;
    	//投放数量(千)
    	@ExcelProperty(value = "投放数量",index =6)
    	private Object cpmNum;
    	//当前总次数
    	@ExcelProperty(value = "当前总次数",index =7)
    	private Integer currentNum;
    	//cpm描述
    	@ExcelProperty(value = "描述",index =8)
    	private String cpmDetailed;
    	//cpm运行开始时间段(比如两点到四点的两点)
    	@ExcelProperty(value = "运行开始时间段",index =9)
    	private Object runBegindate;
    	//cpm运行结束时间段(比如两点到四点的四点)
    	@ExcelProperty(value = "运行结束时间段",index =10)
    	private Object runEnddate;
    	//拼接数据(用于返回给apk)
    	private String jsondata;
    	//优先级
    	private Integer priority;
    	//创建时间
    	private Object createDate;
    	//状态 0没运行,1运行
    	private Integer status;
    	//倒计时策略id
    	private Integer timeId;
    }

Controller代码

@RequestMapping("/exports")
        @ResponseBody
        @RequiresPermissions("cpm:cpmStrategy:cpmUser")
        public void exports(HttpServletRequest request, HttpServletResponse response) {
            //需要导出的数据
            List<CpmStrategyDO> list = cpmStrategyService.list(null);
            try {
                ServletOutputStream out = response.getOutputStream();
                ExcelWriter writer = new ExcelWriter(out, ExcelTypeEnum.XLSX, true);
    
                String fileName = new String("CPM策略信息表格"
                        .getBytes("utf-8"), "iso8859-1");
                Sheet sheet1 = new Sheet(1, 0, CpmStrategyDO.class);
                sheet1.setSheetName("sheet1");
    
                response.setHeader("Content-disposition", "attachment;filename="+fileName+".xlsx");
                response.setContentType("multipart/form-data");
                response.setCharacterEncoding("utf-8");
                writer.write(list, sheet1);
                writer.finish();
                out.flush();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }

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