1.我们要写一个注解ExcelField类。
@Target({ElementType.METHOD, ElementType.FIELD, ElementType.TYPE})
@Retention(RetentionPolicy.RUNTIME)
public @interface ExcelField {
/**
* 导出字段名(默认调用当前字段的“get”方法,如指定导出字段为对象,请填写“对象名.对象属性”,例:“area.name”、“office.name”)
*/
String value() default "";
/**
* 导出字段标题(需要添加批注请用“**”分隔,标题**批注,仅对导出模板有效)
*/
String title();
/**
* 字段类型(0:导出导入;1:仅导出;2:仅导入)
*/
int type() default 0;
/**
* 导出字段对齐方式(0:自动;1:靠左;2:居中;3:靠右)
*/
int align() default 0;
/**
* 导出字段字段排序(升序)
*/
int sort() default 0;
/**
* 如果是字典类型,请设置字典的type值
*/
String dictType() default "";
/**
* 反射类型
*/
Class> fieldType() default Class.class;
/**
* 字段归属组(根据分组导出导入)
*/
int[] groups() default {};
}
2.写一个导出Excel类
public class ExportExcel {
private static Logger log = LoggerFactory.getLogger(ExportExcel.class);
/**
* 工作薄对象
*/
private SXSSFWorkbook wb;
/**
* 工作表对象
*/
private Sheet sheet;
/**
* 样式列表
*/
private Map
/**
* 当前行号
*/
private int rownum;
/**
* 注解列表(Object[]{ ExcelField, Field/Method })
*/
List
3.导入Excel文件
public class ImportExcel {
private static Logger log = LoggerFactory.getLogger(ImportExcel.class);
/**
* 工作薄对象
*/
private Workbook wb;
/**
* 工作表对象
*/
private Sheet sheet;
/**
* 标题行号
*/
private int headerNum;
/**
* 构造函数
* @param path 导入文件,读取第一个工作表
* @param headerNum 标题行号,数据行号=标题行号+1
* @throws InvalidFormatException
* @throws IOException
*/
public ImportExcel(String fileName, int headerNum)
throws InvalidFormatException, IOException {
this(new File(fileName), headerNum);
}
/**
* 构造函数
* @param path 导入文件对象,读取第一个工作表
* @param headerNum 标题行号,数据行号=标题行号+1
* @throws InvalidFormatException
* @throws IOException
*/
public ImportExcel(File file, int headerNum)
throws InvalidFormatException, IOException {
this(file, headerNum, 0);
}
/**
* 构造函数
* @param path 导入文件
* @param headerNum 标题行号,数据行号=标题行号+1
* @param sheetIndex 工作表编号
* @throws InvalidFormatException
* @throws IOException
*/
public ImportExcel(String fileName, int headerNum, int sheetIndex)
throws InvalidFormatException, IOException {
this(new File(fileName), headerNum, sheetIndex);
}
/**
* 构造函数
* @param path 导入文件对象
* @param headerNum 标题行号,数据行号=标题行号+1
* @param sheetIndex 工作表编号
* @throws InvalidFormatException
* @throws IOException
*/
public ImportExcel(File file, int headerNum, int sheetIndex)
throws InvalidFormatException, IOException {
this(file.getName(), new FileInputStream(file), headerNum, sheetIndex);
}
/**
* 构造函数
* @param file 导入文件对象
* @param headerNum 标题行号,数据行号=标题行号+1
* @param sheetIndex 工作表编号
* @throws InvalidFormatException
* @throws IOException
*/
public ImportExcel(MultipartFile multipartFile, int headerNum, int sheetIndex)
throws InvalidFormatException, IOException {
this(multipartFile.getOriginalFilename(), multipartFile.getInputStream(), headerNum, sheetIndex);
}
/**
* 构造函数
* @param path 导入文件对象
* @param headerNum 标题行号,数据行号=标题行号+1
* @param sheetIndex 工作表编号
* @throws InvalidFormatException
* @throws IOException
*/
public ImportExcel(String fileName, InputStream is, int headerNum, int sheetIndex)
throws InvalidFormatException, IOException {
if (StringUtils.isBlank(fileName)){
throw new RuntimeException("导入文档为空!");
}else if(fileName.toLowerCase().endsWith("xls")){
this.wb = new HSSFWorkbook(is);
}else if(fileName.toLowerCase().endsWith("xlsx")){
this.wb = new XSSFWorkbook(is);
}else{
throw new RuntimeException("文档格式不正确!");
}
if (this.wb.getNumberOfSheets()
}
this.sheet = this.wb.getSheetAt(sheetIndex);
this.headerNum = headerNum;
log.debug("Initialize success.");
}
/**
* 获取行对象
* @param rownum
* @return
*/
public Row getRow(int rownum){
return this.sheet.getRow(rownum);
}
/**
* 获取数据行号
* @return
*/
public int getDataRowNum(){
return headerNum+1;
}
/**
* 获取最后一个数据行号
* @return
*/
public int getLastDataRowNum(){
return this.sheet.getLastRowNum()+headerNum;
}
/**
* 获取最后一个列号
* @return
*/
public int getLastCellNum(){
return this.getRow(headerNum).getLastCellNum();
}
/**
* 获取单元格值
* @param row 获取的行
* @param column 获取单元格列号
* @return 单元格值
*/
public Object getCellValue(Row row, int column){
Object val = "";
try{
Cell cell = row.getCell(column);
if (cell != null){
if (cell.getCellType() == Cell.CELL_TYPE_NUMERIC){
val = cell.getNumericCellValue();
}else if (cell.getCellType() == Cell.CELL_TYPE_STRING){
val = cell.getStringCellValue();
}else if (cell.getCellType() == Cell.CELL_TYPE_FORMULA){
val = cell.getCellFormula();
}else if (cell.getCellType() == Cell.CELL_TYPE_BOOLEAN){
val = cell.getBooleanCellValue();
}else if (cell.getCellType() == Cell.CELL_TYPE_ERROR){
val = cell.getErrorCellValue();
}
}
}catch (Exception e) {
return val;
}
return val;
}
/**
* 获取导入数据列表
* @param cls 导入对象类型
* @param groups 导入分组
*/
public
List
// Get annotation field
Field[] fs = cls.getDeclaredFields();
for (Field f : fs){
ExcelField ef = f.getAnnotation(ExcelField.class);
if (ef != null && (ef.type()==0 || ef.type()==2)){
if (groups!=null && groups.length>0){
boolean inGroup = false;
for (int g : groups){
if (inGroup){
break;
}
for (int efg : ef.groups()){
if (g == efg){
inGroup = true;
annotationList.add(new Object[]{ef, f});
break;
}
}
}
}else{
annotationList.add(new Object[]{ef, f});
}
}
}
// Get annotation method
Method[] ms = cls.getDeclaredMethods();
for (Method m : ms){
ExcelField ef = m.getAnnotation(ExcelField.class);
if (ef != null && (ef.type()==0 || ef.type()==2)){
if (groups!=null && groups.length>0){
boolean inGroup = false;
for (int g : groups){
if (inGroup){
break;
}
for (int efg : ef.groups()){
if (g == efg){
inGroup = true;
annotationList.add(new Object[]{ef, m});
break;
}
}
}
}else{
annotationList.add(new Object[]{ef, m});
}
}
}
// Field sorting
Collections.sort(annotationList, new Comparator
public int compare(Object[] o1, Object[] o2) {
return new Integer(((ExcelField)o1[0]).sort()).compareTo(
new Integer(((ExcelField)o2[0]).sort()));
};
});
//log.debug("Import column count:"+annotationList.size());
// Get excel data
List
for (int i = this.getDataRowNum(); i < this.getLastDataRowNum(); i++) {
E e = (E)cls.newInstance();
int column = 0;
Row row = this.getRow(i);
StringBuilder sb = new StringBuilder();
for (Object[] os : annotationList){
Object val = this.getCellValue(row, column++);
if (val != null){
ExcelField ef = (ExcelField)os[0];
// If is dict type, get dict value
if (StringUtils.isNotBlank(ef.dictType())){
val = DictUtils.getDictValue(val.toString(), ef.dictType(), "");
//log.debug("Dictionary type value: ["+i+","+colunm+"] " + val);
}
// Get param type and type cast
Class> valType = Class.class;
if (os[1] instanceof Field){
valType = ((Field)os[1]).getType();
}else if (os[1] instanceof Method){
Method method = ((Method)os[1]);
if ("get".equals(method.getName().substring(0, 3))){
valType = method.getReturnType();
}else if("set".equals(method.getName().substring(0, 3))){
valType = ((Method)os[1]).getParameterTypes()[0];
}
}
//log.debug("Import value type: ["+i+","+column+"] " + valType);
try {
if (valType == String.class){
String s = String.valueOf(val.toString());
if(StringUtils.endsWith(s, ".0")){
val = StringUtils.substringBefore(s, ".0");
}else{
val = String.valueOf(val.toString());
}
}else if (valType == Integer.class){
val = Double.valueOf(val.toString()).intValue();
}else if (valType == Long.class){
val = Double.valueOf(val.toString()).longValue();
}else if (valType == Double.class){
val = Double.valueOf(val.toString());
}else if (valType == Float.class){
val = Float.valueOf(val.toString());
}else if (valType == Date.class){
val = DateUtil.getJavaDate((Double)val);
}else{
if (ef.fieldType() != Class.class){
val = ef.fieldType().getMethod("getValue", String.class).invoke(null, val.toString());
}else{
val = Class.forName(this.getClass().getName().replaceAll(this.getClass().getSimpleName(),
"fieldtype."+valType.getSimpleName()+"Type")).getMethod("getValue", String.class).invoke(null, val.toString());
}
}
} catch (Exception ex) {
log.info("Get cell value ["+i+","+column+"] error: " + ex.toString());
val = null;
}
// set entity value
if (os[1] instanceof Field){
Reflections.invokeSetter(e, ((Field)os[1]).getName(), val);
}else if (os[1] instanceof Method){
String mthodName = ((Method)os[1]).getName();
if ("get".equals(mthodName.substring(0, 3))){
mthodName = "set"+StringUtils.substringAfter(mthodName, "get");
}
Reflections.invokeMethod(e, mthodName, new Class[] {valType}, new Object[] {val});
}
}
sb.append(val+", ");
}
dataList.add(e);
log.debug("Read success: ["+i+"] "+sb.toString());
}
return dataList;
}
4.User实体类
public class UserPojo {
private String userName; //用户名
private String userPassword; //用户密码
private String address; //地址
private String sex; //性别
private String UserNo; //用户编号
@ExcelField(title = "用户名" ,align = 2,sort=1)
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
@ExcelField(title = "用户密码" ,align = 2,sort=2)
public String getUserPassword() {
return userPassword;
}
public void setUserPassword(String userPassword) {
this.userPassword = userPassword;
}
@ExcelField(title = "地址" ,align = 2,sort=3)
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
@ExcelField(title = "性别" ,align = 2,sort=4)
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
@ExcelField(title = "用户编号" ,align = 2,sort=5)
public String getUserNo() {
return UserNo;
}
public void setUserNo(String userNo) {
UserNo = userNo;
}
}
5.导入模板
@RequestMapping(value = "import/template")
public String importFileTemplate(UserPojo user, HttpServletResponse response, HttpServletRequest request,RedirectAttributes redirectAttributes) {
try {
String fileName = "人员台账导入模板.xlsx";
List
list.add(UserUtils.getUser());
new ExportExcel("人员台账信息", Employee.class, 2).setDataList(list).write(response, fileName, request).dispose();
return null;
} catch (Exception e) {
addMessage(redirectAttributes, "导入模板下载失败!失败信息:"+e.getMessage());
}
return "redirect:" +adminPath+ "/employee/employee/employeeSkillList?repage";
}
6.导入模板的例子数据
public class UserUtils {
private static UserPojo user = new UserPojo();
public static UserPojogetUser(){
user.setUserName("小明");
user.setUserPassword("123456");
user.setAddress("安徽省");
user.setSex("男");
user.setUserNo("1706");
return user;
}
}
7.导入Excel
@RequiresPermissions("employee:employee:import")
@RequestMapping(value = "import", method = RequestMethod.POST)
public String importFile(MultipartFile file, RedirectAttributes redirectAttributes) {
if (Global.isDemoMode()) {
addMessage(redirectAttributes, "演示模式,不允许操作!");
return "redirect:/user/userList" ;
}
try {
int successNum = 0;
int failureNum = 0;
StringBuilder failureMsg = new StringBuilder();
ImportExcel ei = new ImportExcel(file, 1, 0);
List
for (Employee employee : list) {
try {
if(employee.getEmployeeNumber()!=null && employeeService.checkEmpNum(employee)
&& employee.getEmployeeName()!=null && employee.getEmployeeMonth()!=null
&& employee.getSkill()!=null && employee.getMainPost()!=null && employee.getStar()!=null
&& employee.getPositionStatus()!=null
){
BeanValidators.validateWithException(validator, employee);
employee.setManyStatus("1");
String status = employee.getPositionStatus();
status = "在岗".equals(status) ? "0" : "1";
employee.setPositionStatus(status);
employeeService.save(employee);
successNum++;
}else {
if(!employeeService.checkEmpNum(employee)){
failureMsg.append("
工号 "+employee.getEmployeeNumber()+" 已存在; ");
}
if(employee.getEmployeeNumber()==null){
failureMsg.append("
工号不能为空; ");
}
if(employee.getEmployeeName()==null){
failureMsg.append("
姓名不能为空; ");
}
if(employee.getEmployeeMonth()==null){
failureMsg.append("
月份不能为空; ");
}
if(employee.getSkill()==null){
failureMsg.append("
技能列表不能为空; ");
}
if(employee.getMainPost()==null){
failureMsg.append("
主技能不能为空; ");
}
if(employee.getPositionStatus()==null){
failureMsg.append("
状态不能为空; ");
}
if(employee.getStar()==null){
failureMsg.append("
星级不能为空; ");
}
failureNum++;
}
} catch (ConstraintViolationException ex) {
failureMsg.append("
员工工号 "+employee.getEmployeeNumber()+" 导入失败:");
List
for (String message : messageList) {
failureMsg.append(message + "; ");
failureNum++;
}
}catch (Exception ex) {
failureMsg.append("
员工工号 "+employee.getEmployeeNumber()+" 导入失败:"+ex.getMessage());
}
}
if (failureNum > 0) {
failureMsg.insert(0, ",失败 " + failureNum + " 条人员台账,导入信息如下:");
}
addMessage(redirectAttributes, "已成功导入 " + successNum + " 条人员台账" + failureMsg);
} catch (Exception e) {
addMessage(redirectAttributes, "人员台账导入失败!失败信息:" + e.getMessage());
}
return "redirect:/user/userList" ;
}
8.导出Excel
@RequiresPermissions("timer:timersInviteInfo:export")
@RequestMapping(value = "Excel", method = RequestMethod.POST)
public String Excel(TimersInviteInfo timersInviteInfo, HttpServletResponse response,
RedirectAttributes redirectAttributes,HttpServletRequest request) {
if (StringUtils.isNullOrEmpty(timersInviteInfo.getRegionId())) {
User user = UserUtils.getUser();
timersInviteInfo.setRegionId(user.getCompany().getId());
}
try {
String fileName = "招标分析结果" + DateUtils.getDate("yyyyMMddHHmmss") + ".xlsx";
List
new ExportExcel("招标分析结果", TimersInviteInfo.class).setDataList(list).write(response, fileName ,request).dispose();
return null;
} catch (Exception e) {
addMessage(redirectAttributes, "导出招标分析结果信息失败!失败信息:" + e.getMessage());
}
return "redirect:" + Global.getAdminPath() + "/timer/timersInviteInfo/list?repage";
}
9.前端jsp
$(document).ready(function(){
$("#btnImport").click(function(){
$.jBox($("#importBox").html(), {title:"导入数据", buttons:{"关闭":true},
bottomText:"导入文件不能超过5M,仅允许导入“xls”或“xlsx”格式文件!"});
});
$("#btnExport").click(function(){
top.$.jBox.confirm("确认要导出招标分析结果信息吗?","系统提示",function(v,h,f){
if(v=="ok"){
$("#searchForm").attr("action","${ctx}/timer/timersInviteInfo/Excel");
$("#searchForm").submit();
}
},{buttonsFocus:1});
top.$('.jbox-body .jbox-icon').css('top','55px');
});
});