界面"/>
课设第三天：员工信息添加界面
添加员工
①. 显示表单页面: 需要先查询所有的部门信息
在index.jsp中添加链接
<a href="emp-input">Add New Employee</a>
在actions中添加
public String input(){request.put("departments", departmentService.getAll());return INPUT;}
实现DepartmentDao.java
package com.keshe.ssh.dao;import java.util.List;import com.keshe.ssh.entities.Department;public class DepartmentDao extends BaseDao{public List<Department> getAll(){String hql = "FROM Department";return getSession().createQuery(hql).list();}}创建DepartmentService.java
package com.keshe.ssh.service;import java.util.List;import com.keshe.ssh.dao.DepartmentDao;
import com.keshe.ssh.entities.Department;public class DepartmentService {private DepartmentDao departmentDao;public void setDepartmentDao(DepartmentDao departmentDao) {this.departmentDao = departmentDao;}public List<Department> getAll(){return departmentDao.getAll();}}在EmployeeAction.java中添加
private DepartmentService departmentService;public void setDepartmentService(DepartmentService departmentService) {this.departmentService = departmentService;}
在Struts配置文件中实现input的对应页面
<result name="input">/WEB-INF/views/emp-input.jsp</result>
创建emp-input.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" ".dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<script type="text/javascript" src="scripts/jquery-1.9.1.min.js"></script>
<script type="text/javascript">$(function(){$(":input[name=lastName]").change(function(){var val = $(this).val();val = $.trim(val);var $this = $(this);if(val != ""){//把当前节点后面的所有 font 兄弟节点删除$this.nextAll("font").remove();var url = "emp-validateLastName";var args = {"lastName":val, "time":new Date()};$.post(url, args, function(data){//表示可用if(data == "1"){$this.after("<font color='green'>LastName可用!</font>");}//不可用else if(data == "0"){$this.after("<font color='red'>LastName不可用!</font>"); }//服务器错误else{alert("服务器错误!");}});}else{alert("lastName 不能为空");$(this).val("");$this.focus();}});})</script>
</head>
<body><s:debug></s:debug><h4>Employee Input Page</h4><s:form action="emp-save" method="post"><s:if test="id != null"><s:textfield name="lastName" label="LastName" disabled="true"></s:textfield><s:hidden name="id"></s:hidden><%-- <!-- 通过添加隐藏域的方式把未显式提交的字段值提交到服务器 --><s:hidden name="lastName"></s:hidden><s:hidden name="createTime"></s:hidden>--%></s:if><s:else><s:textfield name="lastName" label="LastName"></s:textfield></s:else><s:textfield name="email" label="Email"></s:textfield><s:textfield name="birth" label="Birth"></s:textfield><s:select list="#request.departments"listKey="id" listValue="departmentName" name="department.id"label="Department"></s:select><s:submit></s:submit> </s:form></body>
</html>
在beans配置文件中添加
<bean id="departmentDao" class="com.keshe.ssh.dao.DepartmentDao"><property name="sessionFactory" ref="sessionFactory"></property>
</bean>
<bean id="departmentService" class="com.keshe.ssh.service.DepartmentService"><property name="departmentDao" ref="departmentDao"></property>
</bean><bean id="employeeAction" class="com.keshe.ssh.actions.EmployeeAction"scope="prototype"><property name="employeeService" ref="employeeService"></property> <property name="departmentService" ref="departmentService"></property>
</bean>
到此时，可以显示添加页面
②. 使用 Struts2 的 ModelDriven 和 Preparable 拦截器，将提交的表单信息封装为一个对象
先使action类实现ModelDriven 和 Preparable
public class EmployeeAction extends ActionSupport implements RequestAware,ModelDriven<Employee>, Preparable{
@Overridepublic void prepare() throws Exception {}private Employee model;@Overridepublic Employee getModel() {return model;}
定义save
public String save(){if(id == null){model.setCreateTime(new Date()); }employeeService.saveOrUpdate(model);return SUCCESS;}
在Employee.java重写toString
@Overridepublic String toString() {return "Employee [id=" + id + ", lastName=" + lastName + ", email="+ email + ", birth=" + birth + ", createTime=" + createTime+ ", department=" + department + "]";}
③. 时间是一个字符串, 需要转为一个 Date 类型的对象
定义类型转换器
创建com.keshe.ssh.converters包，并创建SSHDateConverter.java
package com.keshe.ssh.converters;import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Map;import org.apache.struts2.util.StrutsTypeConverter;public class SSHDateConverter extends StrutsTypeConverter {private DateFormat dateFormat;{dateFormat = new SimpleDateFormat("yyyy-MM-dd");}@Overridepublic Object convertFromString(Map context, String[] values, Class toClass) {if(toClass == Date.class){try {return dateFormat.parse(values[0]);} catch (ParseException e) {e.printStackTrace();}}return null;}@Overridepublic String convertToString(Map context, Object o) {if(o instanceof Date){return dateFormat.format((Date)o);}return null;}}增加配置文件
创建xwork-conversion.properties
java.util.Date=com.keshe.ssh.converters.SSHDateConverter
在Struts新拦截器栈中添加
<result name="success" type="redirect">/emp-list</result>
在actions中添加
public void prepareSave(){if(id == null){model = new Employee();}else{model = employeeService.get(id);}}
保存传入
dao中EmployeeDao.java添加
public void saveOrUpdate(Employee employee){getSession().saveOrUpdate(employee);}
在actions中实现保存
public String save(){if(id == null){model.setCreateTime(new Date()); }//执行保存操作employeeService.saveOrUpdate(model);return SUCCESS;}
至此，可以完成添加，其中createtime与birth字段都是自己添加时候写的生日日期，其中birth不显示小时分秒，而createtime显示
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课设第三天：员工信息添加界面
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