===maven文件===

<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>3.17-beta1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.poi/poi-ooxml-schemas -->
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml-schemas</artifactId>
<version>3.17-beta1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.poi/poi-scratchpad -->
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-scratchpad</artifactId>
<version>3.17-beta1</version>

===实体类===

package cn.stylefeng.guns.modular.system.model;import com.baomidou.mybatisplus.enums.IdType;
import com.baomidou.mybatisplus.annotations.TableId;
import com.baomidou.mybatisplus.annotations.TableField;
import com.baomidou.mybatisplus.activerecord.Model;
import com.baomidou.mybatisplus.annotations.TableName;
import java.io.Serializable;/*** <p>* * </p>** @author yzj* @since 2020-11-27*/
@TableName("teaching_qualification")
public class TeachingQualification extends Model<TeachingQualification> {private static final long serialVersionUID = 1L;/*** 编号*/@TableId(value = "id", type = IdType.AUTO)private Integer id;/*** 报名号*/@TableField("reg_num")private String regNum;/*** 档案号*/private String filenum;/*** 姓名*/private String name;/*** 性别*/private String sex;/*** 证件类型*/@TableField("certificate_type")private String certificateType;/*** 证件号码*/@TableField("id_num")private String idNum;/*** 考试合格证明编号*/@TableField("examination_qualified_num")private String examinationQualifiedNum;/*** 出生日期*/private String birthdate;/*** 民族*/private String nation;/*** 申请资格种类*/@TableField("eligibility_type")private String eligibilityType;/*** 任教学科*/@TableField("teaching_subjects")private String teachingSubjects;/*** 教师资格证书号码*/@TableField("teacher_qualification")private String teacherQualification;/*** 确认点*/private String affirm;/*** 认定机构*/@TableField("certification_body")private String certificationBody;/*** 政治面貌*/@TableField("politics_status")private String politicsStatus;/*** 普通话水平*/@TableField("mandarin_level")private String mandarinLevel;/*** 普通话证书编号*/@TableField("putonghua_num")private String putonghuaNum;/*** 普通话发证单位*/@TableField("putonghua_certificate_issuing_unit")private String putonghuaCertificateIssuingUnit;/*** 是否在校生*/@TableField("is_school")private String isSchool;/*** 毕业时间*/@TableField("graduation_date")private String graduationDate;/*** 最高学历*/@TableField("highest_education")private String highestEducation;/*** 最高学位*/@TableField("highest_degree")private String highestDegree;/*** 所学专业*/private String major;/*** 专业类别*/@TableField("speciality_classification")private String specialityClassification;/*** 学习形式*/@TableField("study_mode")private String studyMode;/*** 工作单位*/@TableField("work_unit")private String workUnit;/*** 现从事职业*/@TableField("present_occupation")private String presentOccupation;/*** 专业技术职务*/@TableField("title_technical_post")private String titleTechnicalPost;/*** 通讯地址*/@TableField("mailing_address")private String mailingAddress;/*** 毕业学校*/@TableField("school_graduation")private String schoolGraduation;/*** 通讯地的邮编*/@TableField("place_communication")private String placeCommunication;/*** 手机号码*/private String phone;/*** 网报时间*/@TableField("net_time")private String netTime;/*** 考试类型*/@TableField("exam_type")private String examType;/*** 最后修改时间*/@TableField("last_time")private String lastTime;/*** 是否参加能力测试*/@TableField("is_ability_test")private String isAbilityTest;/*** 认定状态*/@TableField("identity_status")private String identityStatus;/*** 普通话是否核验*/@TableField("is_pth_verification")private String isPthVerification;/*** 学籍是否核验*/@TableField("is_roll")private String isRoll;/*** 学历是否核验*/@TableField("is_education")private String isEducation;/*** 毕业证书编号*/@TableField("graduate_num")private String graduateNum;/*** 认定申请所在地*/@TableField("location_application")private String locationApplication;/*** 证书获取方式*/@TableField("certificate_acquisition_mode")private String certificateAcquisitionMode;/*** 邮寄地址*/@TableField("mail_address")private String mailAddress;/*** 邮编*/private String postcode;/*** 联系人*/private String linkman;/*** 联系电话*/private String linkphone;/*** 数据标识：已填报/未填报*/private String dataFlag;/*** 许可决定日期*/@TableField("xk_jdrq")private String xkJdrq;/*** 有效期自*/private String yxqstart;/*** 有效期至*/private String yxqend;public String getXkJdrq() {return xkJdrq;}public void setXkJdrq(String xkJdrq) {this.xkJdrq = xkJdrq;}public String getYxqstart() {return yxqstart;}public void setYxqstart(String yxqstart) {this.yxqstart = yxqstart;}public String getYxqend() {return yxqend;}public void setYxqend(String yxqend) {this.yxqend = yxqend;}public Integer getId() {return id;}public void setId(Integer id) {this.id = id;}public String getRegNum() {return regNum;}public void setRegNum(String regNum) {this.regNum = regNum;}public String getFilenum() {return filenum;}public void setFilenum(String filenum) {this.filenum = filenum;}public String getName() {return name;}public void setName(String name) {this.name = name;}public String getSex() {return sex;}public void setSex(String sex) {this.sex = sex;}public String getCertificateType() {return certificateType;}public void setCertificateType(String certificateType) {this.certificateType = certificateType;}public String getIdNum() {return idNum;}public void setIdNum(String idNum) {this.idNum = idNum;}public String getExaminationQualifiedNum() {return examinationQualifiedNum;}public void setExaminationQualifiedNum(String examinationQualifiedNum) {this.examinationQualifiedNum = examinationQualifiedNum;}public String getBirthdate() {return birthdate;}public void setBirthdate(String birthdate) {this.birthdate = birthdate;}public String getNation() {return nation;}public void setNation(String nation) {this.nation = nation;}public String getEligibilityType() {return eligibilityType;}public void setEligibilityType(String eligibilityType) {this.eligibilityType = eligibilityType;}public String getTeachingSubjects() {return teachingSubjects;}public void setTeachingSubjects(String teachingSubjects) {this.teachingSubjects = teachingSubjects;}public String getTeacherQualification() {return teacherQualification;}public void setTeacherQualification(String teacherQualification) {this.teacherQualification = teacherQualification;}public String getAffirm() {return affirm;}public void setAffirm(String affirm) {this.affirm = affirm;}public String getCertificationBody() {return certificationBody;}public void setCertificationBody(String certificationBody) {this.certificationBody = certificationBody;}public String getPoliticsStatus() {return politicsStatus;}public void setPoliticsStatus(String politicsStatus) {this.politicsStatus = politicsStatus;}public String getMandarinLevel() {return mandarinLevel;}public void setMandarinLevel(String mandarinLevel) {this.mandarinLevel = mandarinLevel;}public String getPutonghuaNum() {return putonghuaNum;}public void setPutonghuaNum(String putonghuaNum) {this.putonghuaNum = putonghuaNum;}public String getPutonghuaCertificateIssuingUnit() {return putonghuaCertificateIssuingUnit;}public void setPutonghuaCertificateIssuingUnit(String putonghuaCertificateIssuingUnit) {this.putonghuaCertificateIssuingUnit = putonghuaCertificateIssuingUnit;}public String getIsSchool() {return isSchool;}public void setIsSchool(String isSchool) {this.isSchool = isSchool;}public String getGraduationDate() {return graduationDate;}public void setGraduationDate(String graduationDate) {this.graduationDate = graduationDate;}public String getHighestEducation() {return highestEducation;}public void setHighestEducation(String highestEducation) {this.highestEducation = highestEducation;}public String getHighestDegree() {return highestDegree;}public void setHighestDegree(String highestDegree) {this.highestDegree = highestDegree;}public String getMajor() {return major;}public void setMajor(String major) {this.major = major;}public String getSpecialityClassification() {return specialityClassification;}public void setSpecialityClassification(String specialityClassification) {this.specialityClassification = specialityClassification;}public String getStudyMode() {return studyMode;}public void setStudyMode(String studyMode) {this.studyMode = studyMode;}public String getWorkUnit() {return workUnit;}public void setWorkUnit(String workUnit) {this.workUnit = workUnit;}public String getPresentOccupation() {return presentOccupation;}public void setPresentOccupation(String presentOccupation) {this.presentOccupation = presentOccupation;}public String getTitleTechnicalPost() {return titleTechnicalPost;}public void setTitleTechnicalPost(String titleTechnicalPost) {this.titleTechnicalPost = titleTechnicalPost;}public String getMailingAddress() {return mailingAddress;}public void setMailingAddress(String mailingAddress) {this.mailingAddress = mailingAddress;}public String getSchoolGraduation() {return schoolGraduation;}public void setSchoolGraduation(String schoolGraduation) {this.schoolGraduation = schoolGraduation;}public String getPlaceCommunication() {return placeCommunication;}public void setPlaceCommunication(String placeCommunication) {this.placeCommunication = placeCommunication;}public String getPhone() {return phone;}public void setPhone(String phone) {this.phone = phone;}public String getNetTime() {return netTime;}public void setNetTime(String netTime) {this.netTime = netTime;}public String getExamType() {return examType;}public void setExamType(String examType) {this.examType = examType;}public String getLastTime() {return lastTime;}public void setLastTime(String lastTime) {this.lastTime = lastTime;}public String getIsAbilityTest() {return isAbilityTest;}public void setIsAbilityTest(String isAbilityTest) {this.isAbilityTest = isAbilityTest;}public String getIdentityStatus() {return identityStatus;}public void setIdentityStatus(String identityStatus) {this.identityStatus = identityStatus;}public String getIsPthVerification() {return isPthVerification;}public void setIsPthVerification(String isPthVerification) {this.isPthVerification = isPthVerification;}public String getIsRoll() {return isRoll;}public void setIsRoll(String isRoll) {this.isRoll = isRoll;}public String getIsEducation() {return isEducation;}public void setIsEducation(String isEducation) {this.isEducation = isEducation;}public String getGraduateNum() {return graduateNum;}public void setGraduateNum(String graduateNum) {this.graduateNum = graduateNum;}public String getLocationApplication() {return locationApplication;}public void setLocationApplication(String locationApplication) {this.locationApplication = locationApplication;}public String getCertificateAcquisitionMode() {return certificateAcquisitionMode;}public void setCertificateAcquisitionMode(String certificateAcquisitionMode) {this.certificateAcquisitionMode = certificateAcquisitionMode;}public String getMailAddress() {return mailAddress;}public void setMailAddress(String mailAddress) {this.mailAddress = mailAddress;}public String getPostcode() {return postcode;}public void setPostcode(String postcode) {this.postcode = postcode;}public String getLinkman() {return linkman;}public void setLinkman(String linkman) {this.linkman = linkman;}public String getLinkphone() {return linkphone;}public void setLinkphone(String linkphone) {this.linkphone = linkphone;}public String getDataFlag() {return dataFlag;}public void setDataFlag(String dataFlag) {this.dataFlag = dataFlag;}@Overrideprotected Serializable pkVal() {return this.id;}@Overridepublic String toString() {return "TeachingQualification{" +", id=" + id +", regNum=" + regNum +", filenum=" + filenum +", name=" + name +", sex=" + sex +", certificateType=" + certificateType +", idNum=" + idNum +", examinationQualifiedNum=" + examinationQualifiedNum +", birthdate=" + birthdate +", nation=" + nation +", eligibilityType=" + eligibilityType +", teachingSubjects=" + teachingSubjects +", teacherQualification=" + teacherQualification +", affirm=" + affirm +", certificationBody=" + certificationBody +", politicsStatus=" + politicsStatus +", mandarinLevel=" + mandarinLevel +", putonghuaNum=" + putonghuaNum +", putonghuaCertificateIssuingUnit=" + putonghuaCertificateIssuingUnit +", isSchool=" + isSchool +", graduationDate=" + graduationDate +", highestEducation=" + highestEducation +", highestDegree=" + highestDegree +", major=" + major +", specialityClassification=" + specialityClassification +", studyMode=" + studyMode +", workUnit=" + workUnit +", presentOccupation=" + presentOccupation +", titleTechnicalPost=" + titleTechnicalPost +", mailingAddress=" + mailingAddress +", schoolGraduation=" + schoolGraduation +", placeCommunication=" + placeCommunication +", phone=" + phone +", netTime=" + netTime +", examType=" + examType +", lastTime=" + lastTime +", isAbilityTest=" + isAbilityTest +", identityStatus=" + identityStatus +", isPthVerification=" + isPthVerification +", isRoll=" + isRoll +", isEducation=" + isEducation +", graduateNum=" + graduateNum +", locationApplication=" + locationApplication +", certificateAcquisitionMode=" + certificateAcquisitionMode +", mailAddress=" + mailAddress +", postcode=" + postcode +", linkman=" + linkman +", linkphone=" + linkphone +"}";}
}

===service===

//excel导入Map saveDataFromExcel(HttpServletRequest request, MultipartFile multipartFile)throws Exception;

===事务层===

import cn.stylefeng.guns.modular.system.model.Yqdwz;
import cn.stylefeng.guns.modular.system.dao.YqdwzMapper;
import cn.stylefeng.guns.modular.system.service.IYqdwzService;
import com.baomidou.mybatisplus.service.impl.ServiceImpl;import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;import javax.servlet.http.HttpServletRequest;import org.apache.commons.collections.map.HashedMap;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellType;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.multipart.MultipartFile;@Overridepublic Map saveDataFromExcel(HttpServletRequest request, MultipartFile multipartFile){Map<String, Object> mapt=new HashedMap();//初始化mapt.put("报名号", "regNum");mapt.put("档案号", "filenum");mapt.put("姓名", "name");mapt.put("性别", "sex");mapt.put("证件类型", "certificateType");mapt.put("证件号码", "idNum");mapt.put("考试合格证明编号", "examinationQualifiedNum");mapt.put("出生日期", "birthdate");mapt.put("民族", "nation");mapt.put("申请资格种类", "eligibilityType");mapt.put("任教学科", "teachingSubjects");mapt.put("教师资格证书号码", "teacherQualification");mapt.put("确认点", "affirm");mapt.put("认定机构", "certificationBody");mapt.put("政治面貌", "politicsStatus");mapt.put("普通话水平", "mandarinLevel");mapt.put("普通话证书编号", "putonghuaNum");mapt.put("普通话发证单位", "putonghuaCertificateIssuingUnit");mapt.put("是否在校生", "isSchool");mapt.put("毕业时间", "graduationDate");mapt.put("最高学历", "highestEducation");mapt.put("最高学位", "highestDegree");mapt.put("所学专业", "major");mapt.put("专业类别", "specialityClassification");mapt.put("学习形式", "studyMode");mapt.put("工作单位", "workUnit");mapt.put("现从事职业", "presentOccupation");mapt.put("专业技术职务", "titleTechnicalPost");mapt.put("通讯地址", "mailingAddress");mapt.put("毕业学校", "schoolGraduation");mapt.put("通讯地的邮编", "placeCommunication");mapt.put("手机号码", "phone");mapt.put("网报时间", "netTime");mapt.put("考试类型", "examType");mapt.put("最后修改时间", "lastTime");mapt.put("是否参加能力测试", "isAbilityTest");mapt.put("认定状态", "identityStatus");mapt.put("普通话是否核验", "isPthVerification");mapt.put("学籍是否核验", "isRoll");mapt.put("学历是否核验", "isEducation");mapt.put("毕业证书编号", "graduateNum");mapt.put("认定申请所在地", "locationApplication");mapt.put("证书获取方式", "certificateAcquisitionMode");mapt.put("邮寄地址", "mailAddress");mapt.put("邮编", "postcode");mapt.put("联系人", "linkman");mapt.put("联系电话", "linkphone");mapt.put("许可决定日期", "xkJdrq");mapt.put("有效期自", "yxqstart");mapt.put("有效期至", "yxqend");Long start = System.currentTimeMillis();Map<String, Object> result = new HashMap<>();StringBuilder errorMsg = new StringBuilder();// 新增设备基本信息列表ArrayList<TeachingQualification> workBasedInformationList = new ArrayList<TeachingQualification>();HSSFWorkbook workbook;
//      XSSFWorkbook workbook;Sheet sheet;try {InputStream inputStream = multipartFile.getInputStream();String fileName = multipartFile.getOriginalFilename();if (fileName.endsWith(".xlsx") || fileName.endsWith(".xls")) {workbook = new HSSFWorkbook(inputStream);} else {result.put("error", 1);result.put("msg", "这不是有效的xlsx文件导入模板,请将后缀改为.xlsx");return result;}} catch (IOException e) {e.printStackTrace();result.put("error", 1);result.put("msg", "这不是有效的导入模板");return result;}// 读取第一个sheetsheet = workbook.getSheetAt(0);int usedRowsCount = sheet.getLastRowNum();// 行标(比行数小1)if (usedRowsCount < 2) {result.put("error", 1);result.put("msg", "没有可导入的数据");return result;}// 获取模板里面的字段列表(默认在第一行)Row row = sheet.getRow(0);int usedCellsCount = row.getLastCellNum();// 列数(比列标大1)ArrayList<String> templateFieldList = new ArrayList<>();for (int i = 0; i < usedCellsCount; i++) {Cell cell = row.getCell(i);cell.setCellType(CellType.STRING);//修改入对应字段templateFieldList.add((String) mapt.get(cell.getStringCellValue().trim()));System.out.println("==="+(String) mapt.get(cell.getStringCellValue().trim()));}// 第2行开始才是用户填的数据for (int j = 1; j <= usedRowsCount; j++) {TeachingQualification wrkBasedInformation = new TeachingQualification();Row dataRow = sheet.getRow(j);// 序号不需要读取for (int k = 0; k < usedCellsCount; k++) {Cell cell = dataRow.getCell(k);String fieldName = templateFieldList.get(k);
//              System.out.println("K========="+fieldName);if (cell != null) {try {Field field = wrkBasedInformation.getClass().getDeclaredField(fieldName);field.setAccessible(true);String fieldType = wrkBasedInformation.getClass().getDeclaredField(fieldName).getType().toString();if ("class java.util.Date".equals(fieldType)) {Date cellValueDate = cell.getDateCellValue();field.set(wrkBasedInformation, cellValueDate);} else {cell.setCellType(CellType.STRING);String cellValue = cell.getStringCellValue();field.set(wrkBasedInformation, cellValue);}} catch (IllegalAccessException | NoSuchFieldException e) {e.printStackTrace();}}}workBasedInformationList.add(wrkBasedInformation);//          System.out.println("wrkBasedInformation============"+wrkBasedInformation.toString());}// 循环插入数据for (TeachingQualification tPersonInfo : workBasedInformationList) {tPersonInfo.setDataFlag("未填报");this.insert(tPersonInfo);}return result;}

===导出=== 使用HXXF最佳

@RequestMapping("/exportdc2/{idstr}")public void exportdc2(HttpServletResponse response,HttpServletRequest request, @PathVariable String idstr)throws IOException {System.out.println("----------"+idstr);SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");//设置日期格式// 声明String数组，并初始化元素（表头名称）//第一行表头字段，合并单元格时字段跨几列就将该字段重复几次String[] excelHeader0 = { "序号", "行政相对人信息","行政相对人信息","行政相对人信息","行政相对人信息","行政相对人信息","行政相对人信息","行政相对人信息","行政相对人信息","案件信息","案件信息","案件信息","案件信息","案件信息","案件信息","案件信息","案件信息","案件信息","案件信息","案件信息","案件信息","案件信息"};//  “0,2,0,0”  ===>  “起始行，截止行，起始列，截止列”String[] headnum0 = { "0,3,0,0", "0,0,1,8", "0,0,9,21"};//第二行表头字段，其中的空的双引号是为了补全表格边框String[] excelHeader1 = { "","行政相对人名称", "行政相对人类别", "法人及其他组织个体工商户","法人及其他组织个体工商户","法人及其他组织个体工商户","法人及其他组织个体工商户", "自然人" ,"自然人","案件名称", "决定书(通知书)名称", "决定书(通知书)文号", "许可证书名称", "许可编号","许可决定日期", "许可类别", "处理结果","许可内容","职权来源","委托单位","备注","决定书" };// 合并单元格String[] headnum1 = { "1,3,1,1", "1,3,2,2", "1,1,3,6", "1,1,7,8", "1,3,9,9", "1,3,10,10","1,3,11,11","1,3,12,12","1,3,13,13","1,3,14,14","1,3,15,15","1,3,16,16","1,3,17,17","1,3,18,18","1,3,19,19","1,3,20,20","1,3,21,21"};//第三行表头字段String[] excelHeader2 = { "","","","统一社会信用代码", "法定代表人", "法定代表人件类型", "法定代表人证件号码", "自然人证件类型", "自然人证件号码"};String[] headnum2 = { "2,3,3,3", "2,3,4,4", "2,3,5,5", "2,3,6,6", "2,3,7,7", "2,3,8,8"};String strListid = idstr.substring(0,idstr.length() -1);XSSFWorkbook workbook = new XSSFWorkbook();XSSFSheet sheet = workbook.createSheet("信息表");// new Date()为获取当前系统时间String fileName = "行政许可案件-省公示"+df.format(new Date());//设置要导出的文件的名字//新增数据行，并且设置单元格数据int rowNum = 4;String[] listdc=strListid.split(",");// 生成表格的第一行// 第一行表头XSSFRow row = sheet.createRow(0);for (int i = 0; i < excelHeader0.length; i++) {XSSFCell cell = row.createCell(i);cell.setCellValue(excelHeader0[i]);sheet.autoSizeColumn(i, true);// 根据字段长度自动调整列的宽度// System.out.println(excelHeader0[i]);if (i >= 0 && i <= 21) {for (int j = 0; j < excelHeader0.length; j++) {// 从第j列开始填充cell = row.createCell(j);// 填充excelHeader1[j]第j个元素cell.setCellValue(excelHeader0[j]);
//                    sheet.autoSizeColumn(j, true);// 根据字段长度自动调整列的宽度}}}// 动态合并单元格for (int i = 0; i < headnum0.length; i++) {sheet.autoSizeColumn(i, true);// 根据字段长度自动调整列的宽度String[] temp = headnum0[i].split(",");Integer startrow = Integer.parseInt(temp[0]);Integer overrow = Integer.parseInt(temp[1]);Integer startcol = Integer.parseInt(temp[2]);Integer overcol = Integer.parseInt(temp[3]);sheet.addMergedRegion(new CellRangeAddress(startrow, overrow, startcol, overcol));}// 第二行表头row = sheet.createRow(1);for (int i = 0; i < excelHeader1.length - 1; i++) {XSSFCell cell = row.createCell(i + 1);cell.setCellValue(excelHeader1[i]);sheet.autoSizeColumn(i, true);// 根据字段长度自动调整列的宽度if (i >= 1 && i <= 21) {for (int j = 0; j < excelHeader1.length; j++) {// 从第j+1列开始填充cell = row.createCell(j);// 填充excelHeader1[j]第j个元素cell.setCellValue(excelHeader1[j]);
//                    sheet.autoSizeColumn(j, true);// 根据字段长度自动调整列的宽度}}}// 动态合并单元格for (int i = 0; i < headnum1.length; i++) {sheet.autoSizeColumn(i, true);// 根据字段长度自动调整列的宽度String[] temp = headnum1[i].split(",");Integer startrow = Integer.parseInt(temp[0]);Integer overrow = Integer.parseInt(temp[1]);Integer startcol = Integer.parseInt(temp[2]);Integer overcol = Integer.parseInt(temp[3]);sheet.addMergedRegion(new CellRangeAddress(startrow, overrow, startcol, overcol));}// 第三行表头row = sheet.createRow(2);for (int i = 0; i < excelHeader2.length; i++) {XSSFCell cell = row.createCell(i + 2);cell.setCellValue(excelHeader2[i]);// System.out.println(excelHeader2[i]);sheet.autoSizeColumn(i, true);// 自动调整宽度if (i > 3 && i <= 8) {for (int j = 0; j < excelHeader2.length; j++) {// 从第j+2列开始填充cell = row.createCell(j);// 填充excelHeader1[j]第j个元素cell.setCellValue(excelHeader2[j]);
//                    sheet.autoSizeColumn(j, true);// 根据字段长度自动调整列的宽度}}}// 动态合并单元格for (int i = 0; i < headnum2.length; i++) {sheet.autoSizeColumn(i, true);// 根据字段长度自动调整列的宽度String[] temp = headnum2[i].split(",");Integer startrow = Integer.parseInt(temp[0]);Integer overrow = Integer.parseInt(temp[1]);Integer startcol = Integer.parseInt(temp[2]);Integer overcol = Integer.parseInt(temp[3]);sheet.addMergedRegion(new CellRangeAddress(startrow, overrow, startcol, overcol));}List<Map<String, Object>> list = this.teachingQualificationService.zdylist(listdc);
//        //在表中存放查询到的数据放入对应的列for (int i = 0 ;i<list.size();i++) {XSSFRow row1 = sheet.createRow(rowNum);
//
//            //自定义对齐各个数据//编号row1.createCell(0).setCellValue(String.valueOf(i+1));//行政相对人名称row1.createCell(1).setCellValue(String.valueOf(list.get(i).get("name")));//行政相对人类别row1.createCell(2).setCellValue("自然人");//统一社会信用代码row1.createCell(3).setCellValue("");//法定代表人row1.createCell(4).setCellValue("");//法定代表人证件类型row1.createCell(5).setCellValue("");//法定代表人证件号码row1.createCell(6).setCellValue("");//自然人证件类型if("身份证".equals(String.valueOf(list.get(i).get("certificate_type")))) {row1.createCell(7).setCellValue("居民身份证");}else {row1.createCell(7).setCellValue(String.valueOf(list.get(i).get("certificate_type")));}//自然人证件号码row1.createCell(8).setCellValue(String.valueOf(list.get(i).get("id_num")));//案件名称row1.createCell(9).setCellValue("初中、小学、幼儿园教师资格认定");//决定书(通知书)名称row1.createCell(10).setCellValue("教师资格证书");//决定书(通知书)文号row1.createCell(11).setCellValue(String.valueOf(list.get(i).get("teacher_qualification")));//许可证书名称row1.createCell(12).setCellValue("教师资格证书");//许可编号row1.createCell(13).setCellValue("");//许可决定日期row1.createCell(14).setCellValue("2020/10/31");//许可类别row1.createCell(15).setCellValue("普通");//处理结果row1.createCell(16).setCellValue("予以许可");//许可内容if("幼儿园".equals(String.valueOf(list.get(i).get("teaching_subjects")))) {row1.createCell(17).setCellValue("根据《中华人民共和国教师法》及《教师资格条例》的规定认定"+String.valueOf(list.get(i).get("name"))+"具备"+String.valueOf(list.get(i).get("eligibility_type")));}else {row1.createCell(17).setCellValue("根据《中华人民共和国教师法》及《教师资格条例》的规定认定"+String.valueOf(list.get(i).get("name"))+"具备"+String.valueOf(list.get(i).get("eligibility_type")).substring(0,String.valueOf(list.get(i).get("eligibility_type")).length() -4)+String.valueOf(list.get(i).get("teaching_subjects"))+"教师资格");}//职权来源row1.createCell(18).setCellValue("依职权");//委托单位row1.createCell(19).setCellValue("深圳市南山区教育局");//备注row1.createCell(20).setCellValue("");//决定书row1.createCell(21).setCellValue("");rowNum++;}//设置单元格大小for(int i = 0 ; i<=21 ;i++) {sheet.setColumnWidth(i,  25 * 256);}response.setContentType("application/octet-stream");response.setCharacterEncoding("utf-8");response.setHeader("Content-disposition", "attachment;filename=" + new String(fileName.getBytes("gbk"), "iso8859-1")+".xlsx");response.flushBuffer();workbook.write(response.getOutputStream());}

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poi -- 上传、自定义模板导出excel文件插入到数据库

===maven文件===

===实体类===

===service===

===事务层===

===导出=== 使用HXXF最佳

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