package com.zy.common.web;
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import com.alibaba.excel.EasyExcel;
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import com.core.common.R;
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import com.zy.common.utils.excel.EnInitData;
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import com.zy.common.utils.excel.EnInitDataListener;
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import com.zy.common.utils.excel.ExcelUtils;
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import org.springframework.stereotype.Controller;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.PostMapping;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.ResponseBody;
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import org.springframework.web.multipart.MultipartFile;
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import javax.servlet.http.HttpServletResponse;
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import java.io.IOException;
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import java.net.URLEncoder;
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/**
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* todo
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* Created by vincent on 2019-11-25
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*/
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@Controller
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@RequestMapping("excel/")
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public class FileController {
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/**
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* 文件上传
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*/
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@PostMapping("upload")
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@ResponseBody
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public R upload(MultipartFile file) throws IOException {
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EasyExcel.read(file.getInputStream(), EnInitData.class, new EnInitDataListener()).sheet().doRead();
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return R.ok();
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}
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/**
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* 文件下载（失败了会返回一个有部分数据的Excel）
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*/
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@GetMapping("download")
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public void download(HttpServletResponse response) throws IOException {
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// 这里注意 有同学反应使用swagger 会导致各种问题，请直接用浏览器或者用postman
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response.setContentType("application/vnd.ms-excel");
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response.setCharacterEncoding("utf-8");
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// 这里URLEncoder.encode可以防止中文乱码 当然和easyexcel没有关系
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String fileName = URLEncoder.encode("测试", "UTF-8");
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response.setHeader("Content-disposition", "attachment;filename=" + fileName + ".xlsx");
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EasyExcel.write(response.getOutputStream(), EnInitData.class).sheet("模板").doWrite(ExcelUtils.data());
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}
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}
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