一、增加雇员
前面我们已经讲得有大部分关键技术啦，而现在也就是我们要扩展，写出来自己的水平啦，当然，逻辑和你的经验将是成功的保障。
- 增加雇员的话，我们先将这个页面打通
<a href="${pageContext.request.contextPath}/employee.do?flag=addEmpUi">添加雇员</a><br/>这句话中flag是你要调用的那个函数的名称，那我们就开始写这个函数，我们将这些逻辑都写在叫EmployeeAction.java的action类中
public ActionForward addEmpUi(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {
// TODO Auto-generated method stub
return mapping.findForward("addEmpUi");
}这个就是我们调转页面的函数，相信大家都能一目了然啦吧。
那我们这时候就得配置页面跳转的逻辑啦，看struts-config.xml啦，在<action-mapping>中添加这个页面跳转。
<action path="/employee" name="employeeForm" parameter="flag">
<forward name="addEmpUi" path="/WEB-INF/addEmpUi.jsp" />
</action>别忘啦在applicationContext.xml中配置这个action，以为spring接管啦struts，那他就接管啦struts的action。
<bean id="departmentService" class="com.wang.service.imp.DepartmentService">
<property name="sessionFactory" ref="sessionFactory"></property>
</bean>- 那我们就得触及到spring啦，注入。。。那怎样注入呢？
先把添加雇员的表单的信息取到吧，我们还根据原先的表单EmployeeForm.java来配置吧，这样省事啦，
package com.wang.web.form;
import org.apache.struts.action.ActionForm;
public class EmployeeForm extends ActionForm{
private String id;
private String pwd;
private String email;
private String grade;
private String name;
private String salary;
private String departmentId;
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getGrade() {
return grade;
}
public void setGrade(String grade) {
this.grade = grade;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getSalary() {
return salary;
}
public void setSalary(String salary) {
this.salary = salary;
}
public String getDepartmentId() {
return departmentId;
}
public void setDepartmentId(String departmentId) {
this.departmentId = departmentId;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getPwd() {
return pwd;
}
public void setPwd(String pwd) {
this.pwd = pwd;
}
}View Code
现在我们表单啦，我们还得再action中添加一个叫addEmp的方法，来接收表单的信息啦，但是当我们接收后，添加到Employee类中，那个部门的字段怎么办，他是这样定义的饿，private Department department; 我们从表单中取到的是部门的id，这里是部门的对象，所以我们就得建一个接口为DepartmentInterfaces.java，看到我们这个方法getDepartmentById，根据id得到部门对象，所以当然是返回Department类型，有一个参数用于接收id
package com.wang.service.interfaces;
import java.io.Serializable;
import com.wang.domain.Department;
public interface DepartmentInterfaces {
//增加部门的方法
public void addDepartment(Department d);
//根据department的id得到部门名称
public Department getDepartmentById(Serializable id);
}View Code
现在去实现这个接口DepartmentService.java,
package com.wang.service.imp;
import java.io.Serializable;
import org.hibernate.SessionFactory;
import org.springframework.transaction.annotation.Transactional;
import com.wang.domain.Department;
import com.wang.service.interfaces.DepartmentInterfaces;
@Transactional
public class DepartmentService implements DepartmentInterfaces {
public SessionFactory sessionFactory;
public SessionFactory getSessionFactory() {
return sessionFactory;
}
public void setSessionFactory(SessionFactory sessionFactory) {
this.sessionFactory = sessionFactory;
}
public void addDepartment(Department d) {
// TODO Auto-generated method stub
sessionFactory.getCurrentSession().save(d);
}
public Department getDepartmentById(Serializable id) {
return (Department) sessionFactory.getCurrentSession().get(Department.class, id);
}
}View Code
现在是关键所在，action类中这样取得注入的bean呢，EmployeeAction.java
package com.wang.web.action;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.actions.DispatchAction;
import com.wang.domain.Department;
import com.wang.domain.Employee;
import com.wang.service.imp.DepartmentService;
import com.wang.service.imp.EmployeeService;
import com.wang.service.interfaces.DepartmentInterfaces;
import com.wang.service.interfaces.EmployeeServiceInter;
import com.wang.web.form.EmployeeForm;
public class EmployeeAction extends DispatchAction {
public DepartmentInterfaces departmentInterfaces;
public EmployeeServiceInter employeeServiceInter;
public void setEmployeeServiceInter(EmployeeServiceInter employeeServiceInter) {
this.employeeServiceInter = employeeServiceInter;
}
public void setDepartmentInterfaces(DepartmentInterfaces departmentInterfaces) {
this.departmentInterfaces = departmentInterfaces;
}
public ActionForward addEmpUi(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {
// TODO Auto-generated method stub
return mapping.findForward("addEmpUi");
}
/**
* 用于添加雇员的处理函数
* @param mapping
* @param form
* @param request
* @param response
* @return
* @throws Exception
*/
public ActionForward addEmp(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {
EmployeeForm employeeForm = (EmployeeForm)form;
Employee employee = new Employee();
employee.setEmail(employeeForm.getEmail());
employee.setGrade(Integer.parseInt(employeeForm.getGrade()));
employee.setName(employeeForm.getName());
employee.setPwd(employeeForm.getPwd());
employee.setSalary(Float.parseFloat(employeeForm.getSalary()));
//怎样取得department呢
employee.setDepartment(departmentInterfaces.getDepartmentById(Integer.parseInt(employeeForm.getDepartmentId())));
employeeServiceInter.addEmployee(employee);
if(employee!=null){
return mapping.findForward("opereok");
}else {
return mapping.findForward("opererr");
}
}
}View Code
最后在applicationContext.xml中配置注入
<!-- 使用注解的方式配置逻辑对象 -->
<bean id="employeeService" class="com.wang.service.imp.EmployeeService" />
<bean id="departmentService" class="com.wang.service.imp.DepartmentService">
<property name="sessionFactory" ref="sessionFactory"></property>
</bean>
<!-- 配置action -->
<bean name="/login" scope="prototype" class="com.wang.web.action.LoginAction">
<property name="employeeServiceInter" ref="employeeService"></property>
</bean>
<bean name="/employee" scope="prototype" class="com.wang.web.action.EmployeeAction">
<property name="departmentInterfaces" ref="departmentService"></property>
<property name="employeeServiceInter" ref="employeeService"></property>
</bean>View Code
作者：少帅
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