SSH_框架整合4--添加员工信息

SSH_框架整合4--添加员工信息

一、

1 index.jsp:添加：<a href="emp-input">添加员工向信息:Add Employees' Information</a>

2 因为在添加员工信息时要选择员工的部门信息，所以要先获取Department信息：

　　(1)com.atguigu.ssh.dao中：提取EmployeeDao.java中公共部分代码(getSession())作为父类BaseDao

1 SSH_框架整合4--添加员工信息

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　　 新建DepartmentDao类来获取Department集合信息：DepartmentDao.java

 1 package com.atguigu.ssh.dao;
 2 
 3 import java.util.List;
 4 
 5 import com.atguigu.ssh.entities.Department;
 6 
 7 public class DepartmentDao extends BaseDao{
 8 
 9     //获取查询到的Department集合
10     public List<Department> getAll(){
11         String hql="FROM Department";
12         return getSession().createQuery(hql).list();
13     }
14 }

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　　(2)com.atguigu.ssh.service包中：新建DepartmentService类：DepartmentService.java　

 1 package com.atguigu.ssh.service;
 2 
 3 import java.util.List;
 4 
 5 import com.atguigu.ssh.dao.DepartmentDao;
 6 import com.atguigu.ssh.entities.Department;
 7 
 8 public class DepartmentService {
 9 
10     private DepartmentDao departmentDao;
11     public void setDepartmentDao(DepartmentDao departmentDao) {
12         this.departmentDao = departmentDao;
13     }
14     
15     public List<Department> getAll(){
16         return departmentDao.getAll();
17     }
18 }

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　　(3) com.atguigu.ssh.actions包下的EmployeeAction.java：填写获取Department集合的方法并且放入request中（jsp页面中就可以通过request直接获取）

 1 //3-1  查询Department
 2     private DepartmentService departmentService;
 3     public void setDepartmentService(DepartmentService departmentService) {
 4         this.departmentService = departmentService;
 5     }
 6     //3-2 实现添加员工信息的方法
 7     public String input(){
 8         request.put("departments", departmentService.getAll());
 9         return INPUT;
10     }

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3 完善applicationContext-beans.xml　

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <beans xmlns="http://www.springframework.org/schema/beans"
 3     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 4     xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
 5     
 6     <bean id="employeeDao" class="com.atguigu.ssh.dao.EmployeeDao">
 7         <property name="sessionFactory" ref="sessionFactory"></property>
 8     </bean>
 9     
10     <bean id="departmentDao" class="com.atguigu.ssh.dao.DepartmentDao">
11         <property name="sessionFactory" ref="sessionFactory"></property>
12     </bean>
13     
14     <bean id="employeeService" class="com.atguigu.ssh.service.EmployeeService">
15         <property name="employeeDao" ref="employeeDao"></property>
16     </bean>
17     
18     <bean id="departmentService" class="com.atguigu.ssh.service.DepartmentService">
19         <property name="departmentDao" ref="departmentDao"></property>
20     </bean>
21     
22     <bean id="employeeAction" class="com.atguigu.ssh.actions.EmployeeAction"
23           scope="prototype">
24         <property name="employeeService" ref="employeeService"></property>
25         <property name="departmentService" ref="departmentService"></property>
26     </bean>
27 </beans>

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4 完善struts.xml，添加显示添加页面语句：<result name="input">/WEB-INF/views/emp-input.jsp</result>

5 　WebContent-WEB-INF-views下新建emp-input.jsp　

 1 <%@ page language="java" contentType="text/html; charset=UTF-8"
 2     pageEncoding="UTF-8"%>
 3 <%@ taglib prefix="s" uri="/struts-tags" %>    
 4 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 5 <html>
 6 <head>
 7 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 8 <title>Insert title here</title>
 9 </head>
10 <body>
11     <h4>Employee Input Page</h4>
12     
13     <s:form action="emp-save" method="post">
14         <s:textfield name="lastName" label="LastName"></s:textfield>
15         <s:textfield name="email" label="Email"></s:textfield>
16         <s:textfield name="birth" label="Birth"></s:textfield>
17         
18         <s:select list="#request.departments"
19                   listKey="id" listValue="departmentName" name="department.id"
20                   label="Department"></s:select>
21         <s:submit></s:submit>                  
22     </s:form>
23     
24 </body>
25 </html>

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二、

1 实现ModelDriven拦截器操作

　　(1)EmployeeAction实现ModelDriven<Employee>,Preparable接口，添加实现方法：　

 1 //****
 2     @Override
 3     public void prepare() throws Exception {
 4     }
 5     //****
 6     private Employee model;
 7     //****
 8     @Override
 9     public Employee getModel() {
10         return model;
11     }
12 //**** 4 使用ModelDriven拦截器方法存储添加的信息
13     public String save(){
14         System.out.println(model);
15         model.setCreateTime(new Date());
16                   employeeService.saveorUpdate(model);
17         return SUCCESS;
18     }
19     //****
20     public void prepareSave(){
21         model=new Employee();
22     }
23 
24 //**** 拦截器的方法
25     public void prepareInput(){
26         
27     }

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　　(2)Struts.xml配置下拦截器：　

 1 <!-- 定义新的拦截器栈, 
 2             配置 prepare 拦截器栈的 alwaysInvokePrepare 参数值为 false -->
 3         <interceptors>
 4             <interceptor-stack name="sshStack">
 5                 <interceptor-ref name="paramsPrepareParamsStack">
 6                     <param name="prepare.alwaysInvokePrepare">false</param>
 7                 </interceptor-ref>
 8             </interceptor-stack>
 9         </interceptors>
10         <!-- 使用新的拦截器栈 -->
11         <default-interceptor-ref name="sshStack"></default-interceptor-ref>

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2 定制类型转换器：使输入的Birth字符串转化为Date类型

　　(1)新建包com.atguigu.ssh.converters：新建SSHDateConverter.java类　　　　　

 1 package com.atguigu.ssh.converters;
 2 
 3 import java.text.DateFormat;
 4 import java.text.ParseException;
 5 import java.text.SimpleDateFormat;
 6 import java.util.Date;
 7 import java.util.Map;
 8 
 9 import org.apache.struts2.util.StrutsTypeConverter;
10 
11 public class SSHDateConverter extends StrutsTypeConverter {
12 
13     private DateFormat dateFormat;
14     
15     public SSHDateConverter()
16     {
17         dateFormat = new SimpleDateFormat("yyyy-MM-dd");
18     }
19     
20     @Override
21     public Object convertFromString(Map context, String[] values, Class toClass) {
22         if(toClass == Date.class){
23             if(values !=null && values.length>0){
24                 String value=values[0];
25                 try {
26                     return dateFormat.parse(value);
27                 } catch (ParseException e) {
28                     e.printStackTrace();
29                 }
30             }
31         }
32         return values;
33     }
34 
35     @Override
36     public String convertToString(Map context, Object o) {
37         if(o instanceof Date){
38             Date date=(Date)o;
39             return dateFormat.format(date);
40         }
41         return null;
42     }
43 
44 }

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　　(2)src-cong下新建xwork-conversion.properties，配置类型转换器：

　　java.util.Date=com.atguigu.ssh.converters.SSHDateConverter

3 实现存储操作：

　　(1)EmployeeDao.java中添加save方法：　

1 //3 添加、存储
2     public void saveOrUpadate(Employee employee){
3         getSession().saveOrUpdate(employee);
4     }

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　　(2)EmployeeService.java

1 //3 添加、存储
2     public void saveorUpdate(Employee employee){
3         employeeDao.saveOrUpadate(employee);
4     }

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　　(3)EmployeeAction.java:　

 1 //**** 4 使用ModelDriven拦截器方法存储添加的信息
 2     public String save(){
 3         System.out.println(model);
 4         model.setCreateTime(new Date());
 5         employeeService.saveorUpdate(model);
 6         return SUCCESS;
 7     }
 8     //****
 9     public void prepareSave(){
10         model=new Employee();
11     }

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4 显示页面：格式化时间操作：

1 <td>
2                         <s:date name="birth" format="yyyy-MM-dd"/>
3                     </td>
4                     <td>
5                         <s:date name="createTime" format="yyyy-MM-dd hh:mm:ss"/>
6                     </td>

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结构图：

文件：

1 EmployeeAction.java　

  1 package com.atguigu.ssh.actions;
  2 
  3 import java.io.ByteArrayInputStream;
  4 import java.io.InputStream;
  5 import java.io.UnsupportedEncodingException;
  6 import java.util.Date;
  7 import java.util.Map;
  8 
  9 import org.apache.struts2.interceptor.RequestAware;
 10 
 11 import com.atguigu.ssh.entities.Employee;
 12 import com.atguigu.ssh.service.DepartmentService;
 13 import com.atguigu.ssh.service.EmployeeService;
 14 import com.opensymphony.xwork2.ActionSupport;
 15 import com.opensymphony.xwork2.ModelDriven;
 16 import com.opensymphony.xwork2.Preparable;
 17 
 18 public class EmployeeAction extends ActionSupport implements RequestAware,
 19 ModelDriven<Employee>,Preparable{
 20     
 21     private static final long serialVersionUID = 1L;
 22     
 23     private EmployeeService employeeService;
 24     
 25     public void setEmployeeService(EmployeeService employeeService){
 26         this.employeeService=employeeService;
 27     }
 28     
 29     //**** 4 使用ModelDriven拦截器方法存储添加的信息
 30     public String save(){
 31         System.out.println(model);
 32         model.setCreateTime(new Date());
 33         employeeService.saveorUpdate(model);
 34         return SUCCESS;
 35     }
 36     //****
 37     public void prepareSave(){
 38         model=new Employee();
 39     }
 40     
 41     //3-1  查询Department
 42     private DepartmentService departmentService;
 43     public void setDepartmentService(DepartmentService departmentService) {
 44         this.departmentService = departmentService;
 45     }
 46     //3-2 实现添加员工信息的方法
 47     public String input(){
 48         request.put("departments", departmentService.getAll());
 49         return INPUT;
 50     }
 51     
 52     //**** 拦截器的方法
 53     public void prepareInput(){
 54         
 55     }
 56     
 57     //2 删除
 58     private Integer id;
 59     public void setId(Integer id) {
 60         this.id = id;
 61     }
 62     /*public String delete(){
 63         employeeService.delete(id);
 64         return SUCCESS;
 65     }*/
 66     //2-1 使用Ajax方式删除
 67     private InputStream inputStream;
 68     
 69     public InputStream getInputStream() {
 70         return inputStream;
 71     }
 72     
 73     public String delete(){
 74         employeeService.delete(id);
 75         try {
 76             //删除成功
 77             inputStream=new ByteArrayInputStream("1".getBytes("UTF-8"));
 78         } catch (UnsupportedEncodingException e) {
 79             //删除失败
 80             try {
 81                 inputStream=new ByteArrayInputStream("0".getBytes("UTF-8"));
 82             } catch (UnsupportedEncodingException e1) {
 83                 // TODO Auto-generated catch block
 84                 e1.printStackTrace();
 85             }
 86             e.printStackTrace();
 87         }
 88         return "ajax-delete-success";
 89     }
 90     //1 查询
 91     public String list(){
 92         request.put("employees", employeeService.getAll()); 
 93         return "list";
 94     }
 95 
 96     //放到页面里
 97     private Map<String,Object> request;
 98     
 99     @Override
100     public void setRequest(Map<String, Object> arg0) {
101         this.request=arg0;
102     }
103     
104     //****
105     @Override
106     public void prepare() throws Exception {
107     }
108     //****
109     private Employee model;
110     //****
111     @Override
112     public Employee getModel() {
113         return model;
114     }
115 
116 }

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2 struts.xml

 1 <?xml version="1.0" encoding="UTF-8" ?>
 2 <!DOCTYPE struts PUBLIC
 3     "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
 4     "http://struts.apache.org/dtds/struts-2.3.dtd">
 5 
 6 <struts>
 7 
 8     <constant name="struts.enable.DynamicMethodInvocation" value="false" />
 9     <constant name="struts.devMode" value="true" />
10 
11     <package name="default" namespace="/" extends="struts-default">
12         <!-- 定义新的拦截器栈, 
13             配置 prepare 拦截器栈的 alwaysInvokePrepare 参数值为 false -->
14         <interceptors>
15             <interceptor-stack name="sshStack">
16                 <interceptor-ref name="paramsPrepareParamsStack">
17                     <param name="prepare.alwaysInvokePrepare">false</param>
18                 </interceptor-ref>
19             </interceptor-stack>
20         </interceptors>
21         <!-- 使用新的拦截器栈 -->
22         <default-interceptor-ref name="sshStack"></default-interceptor-ref>
23         
24         <action name="emp-*" class="employeeAction"
25                 method="{1}">
26                 <result name="list">/WEB-INF/views/emp-list.jsp</result>
27                 
28                 <result type="stream" name="ajax-delete-success">
29                     <param name="contentType">text/html</param>
30                     <param name="inputName">inputStream</param>
31                    </result>
32                    <result name="input">/WEB-INF/views/emp-input.jsp</result>
33                    
34                    <result name="success" type="redirect">/emp-list</result>     
35         </action>
36     </package>
37 
38 </struts>

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3 emp-list.jsp

 1 <%@ page language="java" contentType="text/html; charset=UTF-8"
 2     pageEncoding="UTF-8"%>
 3 <%@ taglib prefix="s" uri="/struts-tags" %>   
 4 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 5 <html>
 6 <head>
 7 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 8 <title>Insert title here</title>
 9 <script type="text/javascript" SRC="scripts/jquery-1.7.2.js"></script>
10 <script type="text/javascript">
11     //删除, 使用 ajax 的方式
12     $(function(){
13         $(".delete").click(function(){
14             var lastName=$(this).next(":input").val();
15             var flag=confirm("是否要删除"+lastName+"的信息吗？");
16             //确认删除, 使用 ajax 的方式
17             if(flag){
18                 //获取要删除的行
19                 var $tr=$(this).parent().parent();
20                 var url=this.href;
21                 var args={"time":new Date()};
22                 $.post(url,args,function(data){
23                     //若 data 的返回值为 1, 则提示 删除成功, 且把当前行删除
24                     if(data==1){
25                         alert("删除成功!");
26                         $tr.remove();
27                     }else{
28                         //若 data 的返回值不是 1, 提示删除失败. 
29                         alert("删除失败!");
30                     }
31                 });
32             }
33             return false;
34         });
35     })
36 </script>
37 </head>
38 <body>
39     <h3>Employee List Page</h3>
40     
41     <s:if test="#request.employees == null ||#request.size()==0">
42         没有员工信息
43     </s:if>
44     <s:else>
45         <table border="1" cellpadding="10" cellspacing="0">
46             <tr>
47                 <td>ID</td>
48                 <td>LASTNAME</td>
49                 <td>EMAIL</td>
50                 <td>BIRTH</td>
51                 <td>CREATETIME</td>
52                 <td>DEPT</td>
53             </tr>
54             <s:iterator value="#request.employees">
55                 <tr>
56                     <td>${id}</td>
57                     <td>${lastName}</td>
58                     <td>${email }</td>
59                     <%-- 
60                         <td>${birth}</td>
61                         <td>${createTime}</td>
62                      --%>
63                     <td>
64                         <s:date name="birth" format="yyyy-MM-dd"/>
65                     </td>
66                     <td>
67                         <s:date name="createTime" format="yyyy-MM-dd hh:mm:ss"/>
68                     </td>
69                     
70                     <td>${department.departmentName}</td>
71                     <td>
72                         <a href="emp-delete?id=${id }" class="delete">Delete</a>
73                         <input type="hidden" value="${lastName}"/>
74                     </td>
75                 </tr>
76             </s:iterator>
77         </table>
78     </s:else>
79 </body>
80 </html>

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4 emp-input.jsp　

 1 <%@ page language="java" contentType="text/html; charset=UTF-8"
 2     pageEncoding="UTF-8"%>
 3 <%@ taglib prefix="s" uri="/struts-tags" %>    
 4 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 5 <html>
 6 <head>
 7 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 8 <title>Insert title here</title>
 9 </head>
10 <body>
11     <h4>Employee Input Page</h4>
12     
13     <s:form action="emp-save" method="post">
14         <s:textfield name="lastName" label="LastName"></s:textfield>
15         <s:textfield name="email" label="Email"></s:textfield>
16         <s:textfield name="birth" label="Birth"></s:textfield>
17         
18         <s:select list="#request.departments"
19                   listKey="id" listValue="departmentName" name="department.id"
20                   label="Department"></s:select>
21         <s:submit></s:submit>                  
22     </s:form>
23     
24 </body>
25 </html>

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