返回结果对象
@Data @AllArgsConstructor @NoArgsConstructor public class ResultInfoimplements Serializable { private static final long serialVersionUID = -3986667778876817461L; private String code; private String msg; private T data; public ResultInfo(String code, String msg) { this.code = code; this.msg = msg; } }
状态枚举类
public enum ResponseStatusEnum { SUCCESS("000000", "成功"), FAILED("000001", "失败"); private String code; private String msg; ResponseStatusEnum(String code, String msg) { this.code = code; this.msg = msg; } public String getCode() { return code; } public String getMsg() { return msg; } }
导出结果工具类封装
import com.cmbchina.riskcontroll.controller.RiskController; import com.cmbchina.riskcontroll.statusenum.ResponseStatusEnum; import org.apache.poi.hssf.usermodel.HSSFWorkbook; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.stereotype.Component; import javax.servlet.http.HttpServletResponse; import java.io.OutputStream; import java.io.UnsupportedEncodingException; import java.nio.charset.StandardCharsets; @Component public class ExportUtils { private static final Logger logger = LoggerFactory.getLogger(RiskController.class); //创建HSSFWorkbook并相应到客户端 public static void createHSSFWorkbook(FileInfo fileInfo,HttpServletResponse response){ //创建HSSFWorkbook HSSFWorkbook wb = ExcelUtils.getHssfWorkbook(fileInfo.getSheetName(), fileInfo.getTitle(), fileInfo.getContent(), null); //响应到客户端 try { ExportUtils.setResponseHeader(response, fileInfo.getFileName()); OutputStream os = response.getOutputStream(); wb.write(os); os.flush(); os.close(); } catch (Exception e) { logger.error("导出excel异常", e); } } public static void setResponseHeader(HttpServletResponse response, String fileName) { try { fileName = new String(fileName.getBytes(), StandardCharsets.ISO_8859_1.name()); } catch (UnsupportedEncodingException e) { logger.error("编码转换异常", e); } try { response.setHeader("Content-Disposition", "attachment;filename=" + fileName); response.setContentType("application/vnd.ms-excel;charset=UTF-8"); response.addHeader("Pargam", "no-cache"); response.addHeader("Cache-Control", "no-cache"); } catch (Exception ex) { logger.error("设置响应流方法异常", ex); } } public static ResultInfo checkExportCount(ResultInfo resultInfo, int count,int limitCount) { // 判断数据是否大于10000条,如果大于10000条给出提示需要设置筛选条件 if (count > limitCount) { resultInfo.setCode(ResponseStatusEnum.FAILED.getCode()); resultInfo.setMsg("导出数据结果集不能够超出"+limitCount+"条,请缩小导出范围"); } return resultInfo; } }
具体接口
@RequestMapping("/exportList") public ResultInfo export(@RequestBody Object object, HttpServletResponse response){ ResultInfo resultInfo=ResultUtil.getSuccessResult(); int count =userService.getCount(object); resultInfo= ExportUtils.checkExportCount(resultInfo,count,limitCount); if (!ResponseStatusEnum.SUCCESS.getCode().equals(resultInfo.getCode())){ return resultInfo; } object.setPageSize(limitCount); object.setCurrentPage(1); List
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