Excel文档导出和导入

2 Excel文档导出
response.setContentType("application/octet-stream; charset=utf-8");
            response.setHeader("Content-Disposition",
                    "attachment; filename=" + new String(fileName.getBytes("utf-8"), "ISO-8859-1"));

2.1  


3 Excel文档导入
3.1  
界面:
var htmlStr = "";
    htmlStr += '
';   
    htmlStr += '
';
    htmlStr += '
';
    htmlStr += '';
    htmlStr += '   ';
    htmlStr += ''
;
    htmlStr += '';
    htmlStr += '
';
htmlStr += '
';
$.layer({
type : 1,
title : '导入用户',
area : [ 'auto', 'auto' ],
page : {
html : htmlStr
}
});
function ValidateFileType() {
var array = new Array();
// 得到上传的Excel表格的名称
var excelName = $("#userExcelFile").val();
// 拆分
array = excelName.split(".");
var suffix = array[array.length - 1];
if (suffix != "xlsx" && suffix != "xls") {
alert("您选择的不是excel文档，请重新选择");
var file = document.getElementById("userExcelFile");
file.value = "";
}
}
/**
* 使用ajax提交表单，要引入jquryForm的js文件
*/
function submitFrom() {
var options = {
beforeSubmit : showRequest,
success : showResponse,
resetForm : true,
dataType : 'json'
};
$("#userExcelFileFormId").submit(function() {
$(this).ajaxSubmit(options);
return false;
});
}
function showRequest(){
}
function showResponse(responseText) {
if (responseText.isSuccess == true) {
alert('导入成功');
window.location = "/SSMProject/user/userMana";
}
}
@RequestMapping("/uploadExcel")
public void uploadExcel(HttpServletRequest request, HttpServletResponse response) throws Exception {
Map<String, Object> resultMap = new HashMap<>();
try {
// 把request对象转换成Spring的request对象
MultipartHttpServletRequest multiRequest = (MultipartHttpServletRequest) request;
// 获取上传的文件列表
Map<String, MultipartFile> fileMap = multiRequest.getFileMap();
// 遍历
for (Map.Entry<String, MultipartFile> entry : fileMap.entrySet()) {
// 获取上传的excel文件
MultipartFile file = entry.getValue();
// 得到文件输入流
InputStream inputStream = file.getInputStream();
// 创建excel文档对象
Workbook workbook = WorkbookFactory.create(inputStream);
// 读取文档的内容
ListString, Object>> list = this.readExcel(workbook);
// 把读取到的内容插入到数据库中
userService.insertData(list);
// 返回标识
resultMap.put("isSuccess", true);
}
} catch (Exception e) {
e.printStackTrace();
resultMap.put("isSuccess", false);
}
Gson gson = new Gson();
String responseContent = gson.toJson(resultMap);
this.flushResponse(response, responseContent);
}
/**
* 读取sheet中的内容
* @param workbook
* @return
*/
private ListString, Object>> readExcel(Workbook workbook) {
// 得到SimpleReadParameter对象，封装了插入的字段名和读取文档的下标
SimpleReadParameter srp = this.getSimpleReadParameter();
String[] fieldNames = srp.getFieldsId();
int startIndex = srp.getStartIndex();
ExcelUtil excelUtil = new ExcelUtil();
ListString, Object>> list = new ArrayList<>();
// 判断是否有工作单元
if (workbook != null && workbook.getNumberOfSheets() > 0) {
// 得到sheet对象
Sheet sheet = workbook.getSheetAt(0);
// 通过工具类来读取sheet中的内容
ListString, Object>> sheetData = excelUtil.readSimple(sheet, startIndex, fieldNames);
if (sheetData != null && sheetData.size() > 0) {
list.addAll(sheetData);
}
}
return list;
}
/**
* 得到要插入到数据库的字段名和起始下标
*
* @return
*/
private SimpleReadParameter getSimpleReadParameter() {
SimpleReadParameter simpleReadParameter = new SimpleReadParameter();
StringBuffer sbBuffer = new StringBuffer();
sbBuffer.append("userChName,").append("mobilePhone,").append("email,").append("userSex,").append("userName,")
.append("orgId,");
String[] filedNames = sbBuffer.toString().split(",");
int startIndex = 2;
simpleReadParameter.setFieldsId(filedNames);
simpleReadParameter.setStartIndex(startIndex);
return simpleReadParameter;
}
}
导出
@RequestMapping("/exportUserExcel")
public void exportExcel(HttpServletRequest request, HttpServletResponse response) throws Exception {
String fileName = "";
// 获取传过来的参数
Map<String, Object> param = this.getParam(request);
Object fileNameObj = param.get("fileName");
// 创建一个默认的日期来拼接文件名
Date date = new Date();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String defaultDate = sdf.format(date);
if (fileNameObj != null && !("").equals(fileNameObj.toString())) {
String fileChName = fileNameObj.toString();
// 截取文件名
if (fileChName.endsWith(".xls") || fileChName.endsWith(".xlsx")) {
fileChName = fileChName.substring(0, fileChName.lastIndexOf("."));
}
fileName = fileChName + defaultDate;
} else {
fileName = defaultDate;
}
// 统一确定后缀
fileName = fileName + ".xls";
OutputStream outputStream = null;
try {
// 得到一个输出流
outputStream = response.getOutputStream();
// 创建一个excel文档对象
Workbook wb = new HSSFWorkbook();
// 设置响应头
// Content-Disposition 的作用，当Content-Type 的类型为要下载的类型时 ,
// 这个信息头会告诉浏览器这个文件的名字或类型。
response.setContentType("application/octet-stream; charset=utf-8");
response.setHeader("Content-Disposition",
"attachment; filename=" + new String(fileName.getBytes("utf-8"), "ISO-8859-1"));
// Excel导出操作
this.exprotUserExcel(wb);
// 把文档对象输出
wb.write(outputStream);
outputStream.flush();
} catch (Exception e) {
e.printStackTrace();
if (outputStream != null) {
outputStream.close();
}
}
}
// Excel导出操作
private void exprotUserExcel(Workbook wb) {
// 得到输入excel文档数据的对象
SimpleExportParameter parameters = this.getSimpleExportParamter();
// 创建sheet对象
Sheet sheet = wb.createSheet();
ExcelUtil util = new ExcelUtil();
// 填充excel文档内容
util.simpleExport(wb, sheet, parameters);
}
//填充SimpleExportParameter对象
private SimpleExportParameter getSimpleExportParamter() {
// 从数据库查出的属性要与下面的属性对应（用“,”分隔，先后顺序与数据库查出结果的顺序一致）
String filedIds = "userChName,userSex,mobilePhone,provinceName,cityName,contryName,userBirthday";
// 中文名称
String filedName = "姓名,性别,电话,省份,地市,区县,生日";
// 列宽
String widthsStr = "20,20,20,20,20,20,20";
// 从数据库中查询数据
ListString, Object>> dataList = userService.queryExprotData();
// 设置标题
String title = "千锋员工信息";
// 设置sheet名称
String sheetName = "员工sheet";
String[] ids = filedIds.split(",");
String[] names = filedName.split(",");
String[] widths = widthsStr.split(",");
// 给对象赋值
SimpleExportParameter sep = new SimpleExportParameter();
sep.setTitle(title);
sep.setTitleEn(sheetName);
sep.setFieldsId(ids);
sep.setFieldsName(names);
sep.setWidths(widths);
sep.setDataList(dataList);
return sep;
}
}