java 编程excel文件导入数据库

// 以下为单文件上传，即excel
private File uploadExcel; // 文件
private String uploadExcelFileName; // 文件名
private static String[] allowFileType = { "xls", "XLS", "xlsx", "XLSX" }; // 控制文件类型

/**
* excel批量导入
* */
public String excelUpload() {
try {
if ((uploadExcelFileName == null)
|| (uploadExcelFileName.equals(""))) {
finalMsg = "文件名不能为空！";
} else {
uploadStu(uploadExcel); // 只传入一个excel文件
}
} catch (Exception e) {
e.printStackTrace();
}
return SUCCESS;
}

private Sheet sheet;
private String[][] excelValue;
private int successRow;
private StringBuilder msg = new StringBuilder();
private String finalMsg = "";

/**
* excel导入的总方法
*/
public void uploadStu(File upload) {
initExcel(upload); // 初始化
boolean flag = readExcel(); // 读取
if (flag) {
insertIntoDB(); // 插入
}
}

/**
* 读取excel文件中数据，保存到sheet对象中
*
* @param upload
*/
private void initExcel(File upload) {
Workbook rwb = null;
try {
InputStream is = new FileInputStream(upload);
rwb = Workbook.getWorkbook(is);
sheet = rwb.getSheet(0);
} catch (Exception e) {
e.printStackTrace();
}
}

/**
* 读取excel中数据进入excelValue数组中
*/
private boolean readExcel() {
excelValue = new String[sheet.getRows()][sheet.getColumns()];
for (int i = 0; i < sheet.getRows(); i++) {
for (int j = 0; j < sheet.getColumns(); j++) {
if (i >= sheet.getRows()) {     //修改
return false;
}

Cell cell = sheet.getCell(j, i);
if ("".equals(cell.getContents().toString().trim())) {
excelValue[i][j] = "";
}
if (cell.getType() == CellType.LABEL) {
LabelCell labelcell = (LabelCell) cell;
excelValue[i][j] = labelcell.getString().trim();
} else if (cell.getType() == CellType.NUMBER) {
excelValue[i][j] = cell.getContents();
} else if (cell.getType() == CellType.DATE) {
DateCell datcell = (DateCell) cell;
excelValue[i][j] = datcell.getDate().toString();
} else {
excelValue[i][j] = cell.getContents().toString().trim();
}
}
}
return true;
}

/**
* 3.保存进入数据库
*
* @param course
*/
private void insertIntoDB() {
int excelRows = excelValue.length;
// 将消息清空
msg.delete(0, msg.length());
successRow = 0;
if (excelValue.length > 1) {
for (int i = 1; i < excelRows; i++) { // 从第二排开始，第一排为文字说明
String[] DBValue = excelValue[i]; // 取一行数据
successRow += 1;
finalInsert(DBValue);
}
finalMsg = "录入结束：成功录入数：" + successRow + msg.toString() + "条";
} else {
finalMsg = "excel中无任何数据！";
System.out.println("excel中没有任何数据");
}
}

/** 数据插入数据库 **/
private void finalInsert(String[] DBValue) {
Building building = new Building();
building.setBuildingName(DBValue[0]);
building.setNamePinyin(DBValue[1]);
building.setBuildingAddress(DBValue[2]);
building.setSearchPinYin(DBValue[3]);
building.setLat(Double.valueOf(DBValue[4]));
building.setLng(Double.valueOf(DBValue[5]));
building.setBusinessId(Integer.parseInt(DBValue[6]));
building.setCityId(Integer.parseInt(DBValue[7]));
buildingService.addBuilding(building);
}

<form action="/company/building/excelUpload.action" enctype="multipart/form-data" method="post" id="uploadForm"  style="margin-left: 30px;margin-top: 10px">
<input type="file" name="uploadExcel" id="buildingId"/>
<input type="button" value="导入" onclick="checkFile()" class="button button-small border-blue"/>
<span id="tip" style="color:red;margin-left:10px;" ></span>
</form>

/** excel核对导入的格式 **/
function checkFile(){
var fileName = $("#buildingId").val();
var ext =/\.[^\.]+/.exec(fileName);
if(ext!='.xls'){
$("#tip").html("请导入.xls格式的文件！");
}else{
$("#uploadForm").submit();
}
}
$(function(){
var result = "<s:property value='finalMsg'/>";
$("#tip").html(result);
});