Java导出模板和导入Excel
html
<div id="inputDiv" class="easyui-dialog" title="导入商品"
style="width:300px;height:220px;padding:10px"
data-options="buttons:'#inputDiv-buttons', closed:true,modal:true">
<form action="<%=basePath %>admin/itme/exportExcel.html" method="post" id="exportForm" style="float:right;">
<input type="submit" value="模板下载"/>
</form>
<form class="inputForm" id="itmeInput" method="post" enctype="multipart/form-data">
<table width="100%">
<tr>
<td align="center" style="width:100px;" valign="top">请选择要导入的EXCEL文件(文件格式:.xls)</td>
</tr>
<tr>
<td align="left" style="width:100px;height: 10px;"></td>
</tr>
<tr>
<td align="center">
<input type="file" name="importExcel" class="easyui-validatebox" id="importExcel"/>
</td>
</tr>
<tr>
<td colspan="2" align="center">
<div style="margin:0 auto;margin-top:10px;">
<span style="margin-right:20px;">
<a href="javascript:inputData()" class="easyui-linkbutton" icon="icon-save">确定</a>
</span>
<a href="#" onclick="$('#inputDiv').dialog('close')" class="easyui-linkbutton" icon="icon-cancel">取消</a>
</div>
</td>
</tr>
</table>
</form>
</div>
script
//批量导入库区
function inputData(){
$('#inputDiv').dialog('close');
$('#itmeInput').form('submit', {
url:"itme/insertManyItme.html",
onSubmit: function(){
var objtype=$("#importExcel").val().substring($("#importExcel").val().lastIndexOf(".")).toLowerCase();
if($("#importExcel").val().length == 0){
$.messager.alert('提示','请选择导入文件！');
return false;
}else if(objtype != '.xls'){
$.messager.alert('提示','导入类型不正确！');
return false;
}else{
$.messager.progress({
title:'导入数据',
msg:'正在导入...'
});
}
},
success:function(data){
$.messager.progress('close');
if(data == 'null' || data.length == 0){
$.messager.show({title:'导入数据',msg:"导入失败！",timeout:5000,showType:'show'});
return;
}
var data = eval(data);
if(data.length == 2 && data[0] == -1){
$.messager.show({title:'导入数据',msg:data,timeout:5000,showType:'show'});
return;
}
if(data.length>0){
$('#itmeGrid').datagrid('load');
var message="";
for(var i=0;i<data.length;i++){
message+=data.cdskItemName+",";
}
$("#importExcel").attr("value","");
$.messager.show({title:'导入数据',msg:"添加商品名称："+message.substring(0,message.length-1)+"成功！",timeout:5000,showType:'show'});
}else{
$("#importExcel").attr("value","");
$.messager.show({title:'导入数据',msg:"导入失败！",timeout:5000,showType:'show'});
}
}
});
}
模板下载java
public static void uploadModel(HttpServletResponse response,String fileName) {
// TODO Auto-generated method stub
try {
// 定义输出类型
response.setContentType("application/vnd.ms-excel;charset=UTF-8");// 定义输出类型
response.reset();// 清除缓冲中的数据
////attachment --- 作为附件下载
////inline --- 在线打开
response.setHeader("Content-Disposition", "attachment; filename=\"" + fileName + "\";");
URL url = new URL((String) EhcacheUtil.get("saveUrl")+"modelExcel/"+fileName);
URLConnection conn = url.openConnection();
BufferedInputStream bufferedInputStream=new BufferedInputStream(conn.getInputStream());
BufferedOutputStream bufferedOutput = new BufferedOutputStream(response.getOutputStream());
int len=-1;
byte[] bt = new byte[1024];
while ((len = bufferedInputStream.read(bt)) > 0) {
bufferedOutput.write(bt, 0, len);
bufferedOutput.flush();
}
//关闭输入流
bufferedOutput.close();
bufferedInputStream.close();
} catch (Exception e) {
e.printStackTrace();
}
}
获取流
//poi获取导入文件流：
public static InputStream getInputStream(HttpServletRequest request, String fileName) throws Exception
{
boolean isMultipart = ServletFileUpload.isMultipartContent(request);
try
{
if (isMultipart == true)
{
// 为该请求创建一个DiskFileItemFactory对象，通过它来解析请求
FileItemFactory factory = new DiskFileItemFactory();
ServletFileUpload upload = new ServletFileUpload(factory);
// 将所有的表单项目都保存到List中
List<FileItem> items = upload.parseRequest(request);
Iterator<FileItem> itr = items.iterator();
// 循环list，取得表单项
while (itr.hasNext())
{
FileItem item = (FileItem) itr.next();
// 检查当前项目是普通表单项目还是文件。
if (item.isFormField())
{
// 如果是普通表单项目，显示表单内容。
String fieldName = item.getFieldName();
// 对应form表单中type="text" name="name"
if (fieldName.equals(fileName))
{
//log.info("the field name is" + item.getString()); // 显示表单内容
}
} else
{
// 如果是文件
if (item.getFieldName().equals(fileName))
{
// 如果上传文件的file的name为" filecer"
InputStream inStream = item.getInputStream();
return inStream;
}
}
}
} else
{
//log.info("the enctype must be multipart/form-data");
}
} catch (Exception e)
{
// log.info("获取文件输入流有误........" + e.getMessage());
}
return null;
}
加载数据
@Override
public String insertImportExcel(HttpServletRequest request,
CondOrderLimit col, EsUser esUser) {
try {
InputStream in = LocalUpload.getInputStream(request,"importExcel");
if(in!=null){
return readXlsInputStreamToCarMemberList(in,col,esUser);
}
} catch (Exception e) {
e.printStackTrace();
TransactionAspectSupport.currentTransactionStatus().isRollbackOnly();
}
return null;
}
//poi获取的inputstream转换为excel,组装成对象：
public String readXlsInputStreamToCarMemberList(InputStream ins,CondOrderLimit cols,EsUser user){
List<CdWhItme> list = new ArrayList<CdWhItme>();
List<String> resonList = new ArrayList<String>();//返回的结果提示
resonList.add("-1");
int totalRow = 0;//区分是不是表头
try{
POIFSFileSystem fs = new POIFSFileSystem(ins);
HSSFWorkbook wb = new HSSFWorkbook(fs);
HSSFSheet sheet = wb.getSheetAt(0);
Iterator rows = sheet.rowIterator();
int itemCode = Integer.parseInt(getNextCodeForImport(user.getEsCorCode()));//获取下一个编码规则
int codeAdds = 0;//商品编码需要递增的
// 循环行
a:while (rows.hasNext()){
HSSFRow row = (HSSFRow) rows.next();
if (row.getRowNum() > 0){
// 循环列Cell
//0商品名称，1商品类型，2商品类别，3规格等级，4单位，5产地，6商品描述
Iterator cells = row.cellIterator();
CdWhItme cdWhItme = new CdWhItme();
// 循环列
while (cells.hasNext()){
HSSFCell cell = (HSSFCell) cells.next();
int col = cell.getCellNum();
switch (col){
// 商品类型
case 1:
if(cdWhItme.getCdskItemName() == "" || cdWhItme.getCdskItemName() == null){
resonList.add("第"+(row.getRowNum()+1)+"行导入错误！原因：商品名称不能为空！");
return Tools.toJson(resonList);
}
if (cell.getCellType() == HSSFCell.CELL_TYPE_STRING){
if(cell.getStringCellValue().length() > 100){
resonList.add("第"+(row.getRowNum()+1)+"行导入错误！原因：商品类型不能大于100字符！");
return Tools.toJson(resonList);
}
cdWhItme.setCdskItemCategory(cell.getStringCellValue());
}else if(cell.getCellType() == HSSFCell.CELL_TYPE_NUMERIC){
cdWhItme.setCdskItemCategory(Integer.toString((int)(cell.getNumericCellValue())));
}
break;
default:
//log.info("未找到对应的数据列");
break;
}
}
list.add(cdWhItme);
}
}
if(list.size() > 0){
return Tools.toJson(list);
}
} catch (IOException e){} finally{}
return null;
}