package net.reumann.demo.action;
import net.reumann.demo.Constants;
import net.reumann.demo.form.EmployeeForm;
import net.reumann.demo.service.DepartmentDaoService;
import net.reumann.demo.service.DepartmentService;
import net.reumann.demo.service.EmployeeDaoService;
import net.reumann.demo.service.EmployeeService;
import net.reumann.demo.vo.Employee;
import org.apache.commons.beanutils.BeanUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.struts.action.*;
import org.apache.struts.actions.DispatchAction;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.List;
public class EmployeeAction extends DispatchAction {
private Log logger = LogFactory.getLog(this.getClass());
private static EmployeeService empService = new EmployeeDaoService();
private static DepartmentService deptService = new DepartmentDaoService();
public ActionForward getEmployees(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
logger.debug("getEmployees");
populateEmployees(request);
return mapping.findForward(Constants.SUCCESS);
}
public ActionForward setUpForInsertOrUpdate(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
logger.debug("setUpForInsertOrUpdate");
EmployeeForm employeeForm = (EmployeeForm)form;
if (isUpdate(request, employeeForm)) {
Integer id = Integer.valueOf(employeeForm.getEmployeeId());
Employee employee = empService.getEmployee(id);
BeanUtils.copyProperties(employeeForm, employee);
}
prep(request);
return mapping.findForward(Constants.SUCCESS);
}
public ActionForward delete(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
logger.debug("delete");
EmployeeForm employeeForm = (EmployeeForm)form;
Integer id = Integer.valueOf(employeeForm.getEmployeeId());
empService.deleteEmployee(id);
populateEmployees(request);
return mapping.findForward(Constants.SUCCESS);
}
public ActionForward insertOrUpdate(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
logger.debug("insertOrUpdate");
EmployeeForm employeeForm = (EmployeeForm)form;
if (validationSuccessful(request, employeeForm)) {
Employee employee = new Employee();
BeanUtils.copyProperties(employee, employeeForm);
if (isUpdate(request, employeeForm)) {
logger.debug("update");
empService.updateEmployee(employee);
} else {
logger.debug("insert");
empService.insertEmployee(employee);
}
populateEmployees(request);
return mapping.findForward(Constants.SUCCESS);
} else {
prep(request);
return mapping.findForward(Constants.FAILURE);
}
}
private void populateEmployees(HttpServletRequest request) {
List employees = empService.getAllEmployees();
request.setAttribute(Constants.EMPLOYEES, employees);
prep(request);
}
private void prep(HttpServletRequest request) {
request.setAttribute(Constants.DEPARTMENTS, deptService.getAllDepartments());
}
private boolean isUpdate(HttpServletRequest request, EmployeeForm empForm) {
boolean updateFlag = true;
//if ID is null or 0 we know we are doing an insert. You could check other
//things to decide, like a dispatch param
//It's annoying that BeanUtils will convert nulls to 0 so have to do 0 check also,
//or you could register a converter, which is the preferred way to handle it, but goes
//beyond this demo
String id = empForm.getEmployeeId();
if (id == null || id.trim().length() == 0 || Integer.parseInt(id) == 0) {
updateFlag = false;
}
request.setAttribute("updateFlag", Boolean.valueOf(updateFlag));
return updateFlag;
}
private boolean validationSuccessful(HttpServletRequest request, EmployeeForm form) {
//if you really like using the validation framework stuff, you can just
//call ActionErrors errors = form.validate( mapping, request ); in this method
//and check for errors being empty, if not save them and you're done.
//I end up finding the validation framework a bit annoying to work with, so I do it
//old-Skool way. Inevitably in a more complex app you end up having to perform
//more complex validation than the validation framework provides, so I just assume
//keep it all here in one place, versus having some handled by xml configuration and
//some hardcoded.
boolean isOk = true;
ActionMessages errors = new ActionMessages();
if (form.getAge() == null || form.getAge().trim().length() == 0) {
errors.add("age", new ActionMessage("errors.required", "Age"));
} else {
try {
Integer.parseInt(form.getAge());
} catch (NumberFormatException e) {
errors.add("age", new ActionMessage("errors.number", "Age"));
}
}
if (form.getFirstName() == null || form.getFirstName().trim().length() == 0) {
errors.add("firstName", new ActionMessage("errors.required", "First Name"));
}
if (form.getLastName() == null || form.getLastName().trim().length() == 0) {
errors.add("lastName", new ActionMessage("errors.required", "Last Name"));
}
if (!errors.isEmpty()) {
saveErrors(request, errors);
isOk = false;
}
return isOk;
}
}
struts_ibatis.zip （64个子文件） 
ibatis.properties 107B mysqldb.script 839B
struts_ibatis mydb.script 871B WEB-INF web.xml 2KB struts-config.xml 1KB lib 
commons-logging.jar 37KB log4j-1.2.9.jar 344KB commons-digester.jar 164KB jstl-1.1.1.jar 20KB commons-beanutils.jar 184KB ibatis-common-2.jar 82KB struts.jar 532KB commons-collections-3.1.jar 546KB standard-1.1.1.jar 384KB ibatis-sqlmap-2.jar 284KB classes MessageResources_en.properties 588B net reumann demo action EmployeeAction.class 4KB Constants.class 575B vo Employee.class 1KB Department.class 636B persistence Department.xml 514B EmployeeDao.class 327B EmployeeDaoIbatisImpl.class 2KB SqlMapConfig.xml 1000B DepartmentDaoIbatisImpl.class 970B DepartmentDao.class 143B BaseIbatisDao.class 2KB Employee.xml 2KB form EmployeeForm.class 1KB service EmployeeDaoService.class 873B DepartmentService.class 143B EmployeeService.class 351B DepartmentDaoService.class 490B log4j.properties 679B ibatis.properties 96B resources index.jsp 125B pagenotfound.jsp 425B employees.jsp 2KB error.jsp 1KB main.css 1KB employeeForm.jsp 2KB java src MessageResources_en.properties 588B net reumann demo action EmployeeAction.java 6KB vo Employee.java 1KB Department.java 666B Constants.java 505B persistence Department.xml 514B EmployeeDao.java 347B DepartmentDao.java 142B SqlMapConfig.xml 1000B BaseIbatisDao.java 1KB EmployeeDaoIbatisImpl.java 2KB DepartmentDaoIbatisImpl.java 648B Employee.xml 2KB form EmployeeForm.java 1KB service DepartmentService.java 142B EmployeeService.java 371B DepartmentDaoService.java 466B EmployeeDaoService.java 825B log4j.properties 679B ibatis.properties 96B struts_ibatis.iml 4KB build.xml 2KB mydb.properties 428B
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