springboot2.0 有条件的导入
- 导出控制器方法：post请求
public Object exportStudent(@RequestBody Map map,HttpServletRequest request, HttpServletResponse response) {
String loginName = (String) map.get("loginName");
String downloadName =(String) map.get("downloadName");
String title = (String) map.get("title");
String sheetName = (String) map.get("sheetName");
if (StringUtils.isBlank(title) || StringUtils.isBlank(sheetName) || StringUtils.isBlank(downloadName)) {
return new ResponseInfo(505,"标题、sheet名称、文件名称不能为空");
}
List<Student> studentList = studentService.exportStudentByConditions(loginName);
for (Student student : studentList) {
if (student.getTel() == null) {
student.setTel("无");
}
if (student.getEmail() == null) {
student.setEmail("无");
}
}
ExcelUtils.exportExcel(studentList, title, sheetName, Student.class, downloadName+".xls", response);
return new ResponseInfo(200,"导出成功");
}
- 导入控制器方法：post请求 可以导入为空的列
public Object importStudent(@RequestParam("file") MultipartFile file,HttpServletRequest request) {
if (file.isEmpty()) {
return new ResponseInfo(505,"文件不能为空");
}
try {
List<Student> studentList = ExcelUtils.importExcel(file, Student.class);
return new ResponseInfo(200,"导入成功");
} catch (IOException e) {
e.printStackTrace();
}
return new ResponseInfo(505,"导入失败");
}
- 工具类
import cn.afterturn.easypoi.excel.ExcelExportUtil;
import cn.afterturn.easypoi.excel.ExcelImportUtil;
import cn.afterturn.easypoi.excel.entity.ExportParams;
import cn.afterturn.easypoi.excel.entity.ImportParams;
import cn.afterturn.easypoi.excel.entity.enmus.ExcelType;
import org.apache.commons.lang3.StringUtils;
import org.apache.poi.ss.usermodel.Workbook;
import org.springframework.web.multipart.MultipartFile;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.URLEncoder;
import java.util.List;
import java.util.Map;
import java.util.NoSuchElementException;
public class ExcelUtils {
public static void exportExcel(List<?> list, String title, String sheetName, Class<?> pojoClass, String fileName, boolean isCreateHeader, HttpServletResponse response){
ExportParams exportParams = new ExportParams(title, sheetName);
exportParams.setCreateHeadRows(isCreateHeader);
defaultExport(list, pojoClass, fileName, response, exportParams);
}
public static void exportExcel(List<?> list, String title, String sheetName, Class<?> pojoClass,String fileName, HttpServletResponse response){
defaultExport(list, pojoClass, fileName, response, new ExportParams(title, sheetName));
}
public static void exportExcel(List<Map<String, Object>> list, String fileName, HttpServletResponse response){
defaultExport(list, fileName, response);
}
private static void defaultExport(List<?> list, Class<?> pojoClass, String fileName, HttpServletResponse response, ExportParams exportParams) {
Workbook workbook = ExcelExportUtil.exportExcel(exportParams,pojoClass,list);
if (workbook != null){
}
downLoadExcel(fileName, response, workbook);
}
private static void downLoadExcel(String fileName, HttpServletResponse response, Workbook workbook) {
try {
response.setCharacterEncoding("UTF-8");
response.setHeader("content-Type", "application/vnd.ms-excel");
response.setHeader("Content-Disposition",
"attachment;filename=" + URLEncoder.encode(fileName, "UTF-8"));
workbook.write(response.getOutputStream());
} catch (IOException e) {
e.printStackTrace();
}
}
private static void downLoadExcel1(String fileName, HttpServletResponse response, Workbook workbook) throws IOException {
try {
response.setCharacterEncoding("UTF-8");
response.setHeader("content-Type", "application/vnd.ms-excel");
response.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(fileName + "." + ExcelTypeEnum.XLSX.getValue(), "UTF-8"));
workbook.write(response.getOutputStream());
} catch (Exception e) {
throw new IOException(e.getMessage());
}
}
private static void defaultExport(List<Map<String, Object>> list, String fileName, HttpServletResponse response) {
Workbook workbook = ExcelExportUtil.exportExcel(list, ExcelType.HSSF);
if (workbook != null);
downLoadExcel(fileName, response, workbook);
}
public static <T> List<T> importExcel(String filePath,Integer titleRows,Integer headerRows, Class<T> pojoClass){
if (StringUtils.isBlank(filePath)){
return null;
}
ImportParams params = new ImportParams();
params.setTitleRows(titleRows);
params.setHeadRows(headerRows);
List<T> list = null;
try {
list = ExcelImportUtil.importExcel(new File(filePath), pojoClass, params);
}catch (NoSuchElementException e){
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
e.printStackTrace();
}
return list;
}
public static <T> List<T> importExcel(MultipartFile file, Integer titleRows, Integer headerRows, Class<T> pojoClass){
if (file == null){
return null;
}
ImportParams params = new ImportParams();
params.setTitleRows(titleRows);
params.setHeadRows(headerRows);
List<T> list = null;
try {
list = ExcelImportUtil.importExcel(file.getInputStream(), pojoClass, params);
}catch (NoSuchElementException e){
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
return list;
}
public static <T> List<T> importExcel(MultipartFile file, Class<T> pojoClass) throws IOException {
return importExcel(file, 1, 1, pojoClass);
}
public static <T> List<T> importExcel(InputStream inputStream, Integer titleRows, Integer headerRows, boolean needVerfiy, Class<T> pojoClass) throws IOException {
if (inputStream == null) {
return null;
}
ImportParams params = new ImportParams();
params.setTitleRows(titleRows);
params.setHeadRows(headerRows);
params.setSaveUrl("/excel/");
params.setNeedSave(true);
params.setNeedVerfiy(needVerfiy);
try {
return ExcelImportUtil.importExcel(inputStream, pojoClass, params);
} catch (NoSuchElementException e) {
throw new IOException("excel文件不能为空");
} catch (Exception e) {
throw new IOException(e.getMessage());
}
}
enum ExcelTypeEnum {
XLS("xls"), XLSX("xlsx");
private String value;
ExcelTypeEnum(String value) {
this.value = value;
}
public String getValue() {
return value;
}
public void setValue(String value) {
this.value = value;
}
}
}
- 实体类
public class Student implements Serializable {
private static final long serialVersionUID=1L;
@ApiModelProperty(value = "id")
@TableId(value = "id",type = IdType.AUTO)
private Long id;
@ApiModelProperty(value = "账户")
@Excel(name = "账号",width = 15,orderNum = "0")
private String loginName;
@ApiModelProperty(value = "姓名")
@Excel(name = "姓名",width = 15,orderNum = "0")
private String studentName;
@ApiModelProperty(value = "用户头像")
private String studentIcon;
@ApiModelProperty(value = "密码")
private String password;
@ApiModelProperty(value = "shiro加密盐")
private String salt;
@ApiModelProperty(value = "手机号码")
private String tel;
@ApiModelProperty(value = "邮箱地址")
private String email;
@ApiModelProperty(value = "是否锁定")
private Integer locked;
private String remarks;
private Date registTime;
private String createUser;
@TableField(exist = false)
@Excel(name = "班级",width = 15,orderNum = "0")
private String clazzName;
- pom依赖
<dependency>
<groupId>cn.afterturn</groupId>
<artifactId>easypoi-base</artifactId>
<version>3.2.0</version>
</dependency>
<dependency>
<groupId>cn.afterturn</groupId>
<artifactId>easypoi-web</artifactId>
<version>3.2.0</version>
</dependency>
<dependency>
<groupId>cn.afterturn</groupId>
<artifactId>easypoi-annotation</artifactId>
<version>3.2.0</version>
</dependency>
