package cc.mrbird.febs.others.controller;
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import cc.mrbird.febs.common.annotation.ControllerEndpoint;
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import cc.mrbird.febs.common.controller.BaseController;
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import cc.mrbird.febs.common.entity.FebsResponse;
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import cc.mrbird.febs.common.entity.QueryRequest;
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import cc.mrbird.febs.common.exception.FebsException;
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import cc.mrbird.febs.others.entity.Eximport;
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import cc.mrbird.febs.others.service.IEximportService;
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import com.google.common.base.Stopwatch;
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import com.google.common.collect.ImmutableMap;
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import com.google.common.collect.Lists;
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import com.wuwenze.poi.ExcelKit;
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import com.wuwenze.poi.handler.ExcelReadHandler;
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import com.wuwenze.poi.pojo.ExcelErrorField;
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import lombok.RequiredArgsConstructor;
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import lombok.extern.slf4j.Slf4j;
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import org.apache.commons.collections.CollectionUtils;
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import org.apache.commons.lang3.StringUtils;
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import org.apache.shiro.authz.annotation.RequiresPermissions;
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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.RestController;
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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.util.ArrayList;
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import java.util.Date;
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import java.util.List;
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import java.util.Map;
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import java.util.stream.IntStream;
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/**
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* @author MrBird
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*/
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@Slf4j
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@RestController
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@RequestMapping("eximport")
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@RequiredArgsConstructor
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public class EximportController extends BaseController {
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private final IEximportService eximportService;
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@GetMapping
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@RequiresPermissions("others:eximport:view")
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public FebsResponse findEximports(QueryRequest request) {
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Map<String, Object> dataTable = getDataTable(eximportService.findEximports(request, null));
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return new FebsResponse().success().data(dataTable);
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}
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/**
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* 生成 Excel导入模板
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*/
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@GetMapping("template")
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@RequiresPermissions("eximport:template")
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public void generateImportTemplate(HttpServletResponse response) {
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// 构建数据
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List<Eximport> list = new ArrayList<>();
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IntStream.range(0, 20).forEach(i -> {
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Eximport eximport = new Eximport();
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eximport.setField1("字段1");
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eximport.setField2(i + 1);
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eximport.setField3("mrbird" + i + "@gmail.com");
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list.add(eximport);
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});
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// 构建模板
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ExcelKit.$Export(Eximport.class, response).downXlsx(list, true);
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}
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/**
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* 导入Excel数据，并批量插入 T_EXIMPORT表
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*/
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@PostMapping("import")
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@RequiresPermissions("eximport:import")
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@ControllerEndpoint(exceptionMessage = "导入Excel数据失败")
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public FebsResponse importExcels(MultipartFile file) throws IOException {
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if (file.isEmpty()) {
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throw new FebsException("导入数据为空");
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}
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String filename = file.getOriginalFilename();
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if (!StringUtils.endsWith(filename, ".xlsx")) {
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throw new FebsException("只支持.xlsx类型文件导入");
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}
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// 开始导入操作
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Stopwatch stopwatch = Stopwatch.createStarted();
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final List<Eximport> data = Lists.newArrayList();
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final List<Map<String, Object>> error = Lists.newArrayList();
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ExcelKit.$Import(Eximport.class).readXlsx(file.getInputStream(), new ExcelReadHandler<Eximport>() {
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@Override
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public void onSuccess(int sheet, int row, Eximport eximport) {
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// 数据校验成功时，加入集合
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eximport.setCreateTime(new Date());
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data.add(eximport);
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}
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@Override
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public void onError(int sheet, int row, List<ExcelErrorField> errorFields) {
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// 数据校验失败时，记录到 error集合
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error.add(ImmutableMap.of("row", row, "errorFields", errorFields));
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}
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});
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if (CollectionUtils.isNotEmpty(data)) {
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// 将合法的记录批量入库
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this.eximportService.batchInsert(data);
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}
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ImmutableMap<String, Object> result = ImmutableMap.of(
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"time", stopwatch.stop().toString(),
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"data", data,
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"error", error
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);
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return new FebsResponse().success().data(result);
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}
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@GetMapping("excel")
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@RequiresPermissions("eximport:export")
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@ControllerEndpoint(exceptionMessage = "导出Excel失败")
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public void export(QueryRequest queryRequest, Eximport eximport, HttpServletResponse response) {
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List<Eximport> eximports = this.eximportService.findEximports(queryRequest, eximport).getRecords();
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ExcelKit.$Export(Eximport.class, response).downXlsx(eximports, false);
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}
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}
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