Java tutorial
package db.pj.action.admin; import java.io.File; import java.io.IOException; import java.util.ArrayList; import java.util.List; import org.apache.commons.io.FileUtils; import org.apache.struts2.ServletActionContext; import com.opensymphony.xwork2.ActionContext; import com.opensymphony.xwork2.ActionSupport; import db.pj.dao.DaoFactory; import db.pj.util.IDGenerator; import db.pj.util.SessionConstants; import db.pj.util.excel.ExcelUtil; @SuppressWarnings("serial") public class ImportAction extends ActionSupport { private File excel; private String excelFileName; private String excelContentType; private String type; public String execute() throws IOException { String realpath = ServletActionContext.getServletContext().getRealPath("/temp"); if (excel == null) return SUCCESS; // upload file String saveName = IDGenerator.generateUUID() + excelFileName.substring(excelFileName.indexOf(".")); File saveFile = new File(new File(realpath), saveName); if (!saveFile.getParentFile().exists()) saveFile.getParentFile().mkdirs(); FileUtils.copyFile(excel, saveFile); // import data List<String> result = new ArrayList<String>(); if (type.equals("trad")) result = ExcelUtil.importAdministration(saveFile); else if (type.equals("staff")) result = ExcelUtil.importStaff(saveFile); else if (type.equals("licn")) result = ExcelUtil.importLicense(saveFile); else if (type.equals("pnlt")) result = ExcelUtil.importPenalty(saveFile); else result.add(""); // delete temp file and add log saveFile.delete(); DaoFactory.getLoggingDao().addLogging(SessionConstants.ADMIN_NAME, result.get(0)); // return ActionContext actionContext = ActionContext.getContext(); actionContext.put("exeTip", result); return SUCCESS; } public File getExcel() { return excel; } public void setExcel(File excel) { this.excel = excel; } public String getExcelFileName() { return excelFileName; } public void setExcelFileName(String excelFileName) { this.excelFileName = excelFileName; } public String getExcelContentType() { return excelContentType; } public void setExcelContentType(String excelContentType) { this.excelContentType = excelContentType; } public String getType() { return type; } public void setType(String type) { this.type = type; } }