java实现Excel导入功能代码
本源码来源于开源系统MyExam
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前台代码：
<formid="importForm" method="post"enctype="multipart/form-data">
<div>
<h1><fmt:messagekey="questionimport"/></h1>
<tableclass="yTable margintop">
<tr>
<th><fmt:messagekey="selectfile"/>：</th>
<td><inputid="files"name="files"type="file"/></td>
</tr>
</table>
<br/>
</div>
<divclass="Btn">
<inputid="downloadBtn"type="button"value="<fmt:messagekey="downloadtemplate"/>"/>
<inputid="importBtn"type="button"value="<fmt:messagekey="import"/>"/>
</div>
</form>
js文件：
define(function(require){
var $ = require('jquery');
var contextPath=$("#contextPath").val();
require('dialog')($);
require('uriTemplate')($);
var IFA = require('util');
require('dateTimePicker')($);
require("../../../styles/cim/jquery-ui-1.8.14.custom.css");
$("#importBtn").click(function(){
var url =contextPath+'/question/import.do';
$("#importForm").attr("action",url);
$("#importForm").submit();
});
$("#downloadBtn").click(function(){
url= contextPath+'/download/questionTemplate.xlsx';
location.href= url;
});
});
Java代码：
/**
* 导入试题
*
* @author Eric
*
*/
@SuppressWarnings("unchecked")
@RequestMapping(value = "/question/import.json",method = RequestMethod.POST)
public String create(final ExcelDTO excelDTO,
final BindingResult result,final ModelMap model,
HttpServletRequestrequest){
excelValidator.validate(excelDTO,result);
// 插入数据的list
List<importQuestionDTO>importQuestionList = new LinkedList<importQuestionDTO>();
if (result.hasErrors()) {
model.put("importFileTypeError1","importFileTypeError");
}else{
try {
final Map<String,Object> parse = parseExcel(excelDTO);
final boolean dataTooManyErrorFlag =(Boolean) parse
.get("dataTooManyErrorFlag");
if (dataTooManyErrorFlag){
model.put("importFileDataTooManyErroFlag1",true);
}else{
// 格式正确的list
importQuestionList= (List<importQuestionDTO>) parse.get("formatCorrectList");
}
}catch(Exception e) {
model.put("importFileReadErrorMsg1","true");
return view(model,"importQuestionView",TopMenu.EXAM,
SideMenu.QUESTION_MANAGEMENT);
}
final Map<String,Object> resultMap = insertDB(importQuestionList, request);
model.put("lastId",resultMap.get("insertLastId"));
model.put("count",resultMap.get("successCount"));
model.put("importVoucherSuccessFlag1","true");
}
return view(model,"importQuestionView",TopMenu.EXAM,
SideMenu.QUESTION_MANAGEMENT);
}
/**
* <p>
* Description: 插入数据
* </p>
*
* @author Eric
*/
private Map<String,Object> insertDB(
List<importQuestionDTO>questionList,
HttpServletRequestrequest) {
final Date date =new Date();
final IntegercreatorAndModifier = (Integer)securityHelper.getID(request);
for (importQuestionDTOquestionDTO : questionList) {
setDefaultValue(date,creatorAndModifier, questionDTO);
}
//returnpersonProfileService.importClubCustomer(clubCustomerList);
return null;
}
/**
* <p>
* Description: 设置其他默认必须数据
* </p>
*
* @author Eric
*/
private void setDefaultValue(final Date date,
final IntegercreatorAndModifier,
importQuestionDTOquestionDTO) {
questionDTO.setCreationDate(new Date());
questionDTO.setCreator(creatorAndModifier);
questionDTO.setModificationDate(new Date());
questionDTO.setModifier(creatorAndModifier);
questionDTO.setOrigin("import");
}
/**
* <p>
* Description: 解析excel
* </p>
*
* @author Eric
*/
private Map<String,Object> parseExcel(final ExcelDTO excelDTO)
throws BiffException,IOException {
final Map<String,Object> map =newHashMap<String, Object>(3);
Workbookworkbook = null;
try {CommonsMultipartFilefile=(CommonsMultipartFile) excelDTO.getFiles().get(0);
StringfileName = file.getFileItem().getName();
Stringextension = fileName
.substring(fileName.lastIndexOf(".") + 1);
InputStreamis = file.getInputStream();
// if ("xlsx".equals(extension)) {
// XSSFWorkbook workbook2007 = new XSSFWorkbook(is);
// final XSSFSheet sheet = workbook2007.getSheetAt(0);
// final int totalRows = sheet.getLastRowNum();
// if (totalRows > 3000) {
// map.put("dataTooManyErrorFlag", true);
// } else {
// map.putAll(packagePersonProfile2007(sheet,totalRows));
// map.put("dataTooManyErrorFlag", false);
// }
// }
workbook= Workbook.getWorkbook(is);
final Sheet sheet =workbook.getSheet(0);
final int totalRows =sheet.getRows();
if (totalRows > 3000) {
map.put("dataTooManyErrorFlag",true);
}else{
map.putAll(packagePersonProfile(sheet,totalRows));
map.put("dataTooManyErrorFlag",false);
}
}catch(BiffException e) {
throw e;
} catch (IOException e) {
throw e;
}finally{
if (workbook !=null) {
workbook.close();
}
}
return map;
}
/**
* <p>
* Description: 将excel2003封装成list
* </p>
*
* @author Eric
*/
private Map<String,List<importQuestionDTO>> packagePersonProfile(
final Sheet sheet,final Integer totalRows) {
finalList<importQuestionDTO> formatCorrectList =new LinkedList<importQuestionDTO>();
final Map<String,List<importQuestionDTO>> packageResult =new HashMap<String, List<importQuestionDTO>>(
2);
for (int i = 1; i <totalRows; i++) {
importQuestionDTOquestionDTO = newimportQuestionDTO();
List<OptionDTO> optionDTO=new ArrayList<OptionDTO>();
final String content =sheet.getCell(0, i).getContents().trim();
final String analyse =sheet.getCell(1, i).getContents().trim();
final String answer =sheet.getCell(2, i).getContents().trim();
final String category =sheet.getCell(3, i).getContents().trim();
int num=num(sheet, i);
for (int k = num; k > 3; k--) {
OptionDTO optionDTO2=new OptionDTO();
optionDTO2.setContent(sheet.getCell(k,i).getContents().trim());
optionDTO.add(optionDTO2);
}
try {
questionDTO= constructclubCustomerDTO(content, analyse,
answer, category,(ArrayList<OptionDTO>) optionDTO);
formatCorrectList.add(questionDTO);
}catch(NumberFormatException e) {
//log.catching(e);
}
}
packageResult.put("formatCorrectList",formatCorrectList);
return packageResult;
}
/**
* <p>
* Description: 封装所需的DTO
* </p>
*
* @author Eric
*/
private importQuestionDTOconstructclubCustomerDTO(String content,
Stringanalyse, String answer, String category, ArrayList<OptionDTO> optionDTO){
final importQuestionDTOimportQuestionDTO =new importQuestionDTO();
importQuestionDTO.setContent(content);
importQuestionDTO.setAnalysis(analyse);
importQuestionDTO.setAnswer(answer);
importQuestionDTO.setCategory(category);
importQuestionDTO.setOptions(optionDTO);
return importQuestionDTO;
}
public int num(final Sheet sheet,final Integer i){
int a;
for (int j = 0; ; j++) {
if (StringUtils.isBlank(sheet.getCell(4+j,i).getContents().trim())) {
a=4+j;
break;
}
}
return a;
}
/**
* <p>
* Description: 将excel2007封装成list
* </p>
*
* @author Eric
*/
private Map<String,List<QuestionDTO>>packagePersonProfile2007(
final XSSFSheet sheet,final Integer totalRows) {
// 填充的list
final List<QuestionDTO>formatCorrectList =new LinkedList<QuestionDTO>();
final Map<String,List<QuestionDTO>> packageResult =new HashMap<String,List<QuestionDTO>>(
2);
for (int i = 1; i <totalRows; i++) {
QuestionDTOclubCustomerDTO = new QuestionDTO();
}
return packageResult;
}
/**
* 导入试题
*
* @author Eric
*
*/
@RequestMapping(value = "/importPaper.do",method = RequestMethod.GET)
public StringimportPaperIndex(finalModelMap model){
return view(model,"importPaperView",TopMenu.EXAM,
SideMenu.PAPER_MANAGEMENT);
}
Service代码：
public Map<String,Object> importQuestion(
finalList<importQuestionDTO> questionList) {
// 插入新数据，并返回最后插入的personProfile的id
final Integer insertLastId =questionDao
.insertQuestionBatch(questionList);
final Map<String,Object> resultMap =new HashMap<String, Object>();
resultMap.put("insertLastId",insertLastId);
return resultMap;
}
DAO：
publicInteger insertQuestionBatch(
finalList<importQuestionDTO> questionDTOs) {
Integer lastId = (Integer)getSqlMapClientTemplate().execute(
new SqlMapClientCallback<Object>() {
public ObjectdoInSqlMapClient(finalSqlMapExecutor executor)
throws SQLException {
executor.startBatch();
for (importQuestionDTOclubCustomerDTOs : questionDTOs) {
int id=(Integer) executor.insert(
"question.insert",
clubCustomerDTOs);
List<OptionDTO>optionDTOs=clubCustomerDTOs.getOptions();
for (OptionDTOoptionDTO:optionDTOs ) {
optionDTO.setQuestionId(id);
executor.insert(
"question.insertOption",
optionDTO);
}
}
executor.executeBatch();
//final Integer id = (Integer) executor
//.queryForObject("person_profile.selectLastInsertID");
return 5;
}
});
return lastId;
}
// 根据id删除
public void deleteQuestion(int id) {
getSqlMapClientTemplate().delete("question.deleteById",id);
}
public intinsertQuestion(QuestionDTO questionDTO) {
return (Integer) getSqlMapClientTemplate().insert("question.insert",
questionDTO);
}