Struts2CRUD

package com.aurifa.struts2.tutorial.dao; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import java.util.Map; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import com.aurifa.struts2.tutorial.model.Department; import com.aurifa.struts2.tutorial.model.Employee; public class EmployeeNoDBdao implements EmployeeDao { private static Map departmentsMap; private static ArrayList employees; static { employees = new ArrayList(); employees.add(new Employee(new Integer(1), "物质龙", "哈哈", new Integer(36), new Department(new Integer(100), "统计"))); employees.add(new Employee(new Integer(2), "Bob", "Smith", new Integer(25), new Department(new Integer(300), "Sales"))); DepartmentDao deptDao = new DepartmentNoDBdao(); departmentsMap = deptDao.getDepartmentsMap(); } Log logger = LogFactory.getLog(this.getClass()); public List getAllEmployees() { return employees; } public Employee getEmployee(Integer id) { Employee emp = null; Iterator iter = employees.iterator(); while (iter.hasNext()) { emp = (Employee)iter.next(); if (emp.getEmployeeId().equals(id)) { break; } } return emp; } public void update(Employee emp) { Integer id = emp.getEmployeeId(); for (int i = 0; i < employees.size(); i++) { Employee tempEmp = (Employee)employees.get(i); if (tempEmp.getEmployeeId().equals(id)) { emp.setDepartment((Department)departmentsMap.get(emp.getDepartment().getDepartmentId())); employees.set(i, emp); break; } } } public void insert(Employee emp) { int lastId = 0; Iterator iter = employees.iterator(); while (iter.hasNext()) { Employee temp = (Employee)iter.next(); if (temp.getEmployeeId().intValue() > lastId) { lastId = temp.getEmployeeId().intValue(); } } emp.setDepartment((Department)departmentsMap.get(emp.getDepartment().getDepartmentId())); emp.setEmployeeId(new Integer(lastId + 1)); employees.add(emp); } public void delete(Integer id) { for (int i = 0; i < employees.size(); i++) { Employee tempEmp = (Employee)employees.get(i); if (tempEmp.getEmployeeId().equals(id)) { employees.remove(i); break; } } } }