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

　　  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
      
        getAll(){11         String hql="FROM Department";12         return getSession().createQuery(hql).list();13     }14 }
      

　　(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
      
        getAll(){16         return departmentDao.getAll();17     }18 }
      

　　(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     }

3  完善applicationContext-beans.xml　

　　

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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  5  6  7 
       8  9 10 11     
Employee Input Page
12     13     
      
       14         
       15         
       16         
       17         18         
       21         
                         22     
      23     24 25 

 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     }

　　(2)Struts.xml配置下拦截器：　

1 
       3         
      
        4             
       
         5                 
        
          6                     
         false 7                 
         8             
        9         
      10         
      11         
      

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     @Override21     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     @Override36     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 }

　　(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     }

　　(2)EmployeeService.java

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

　　(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     }

4 显示页面：格式化时间操作：

1 2                         
      3                     4                     5                         
      6                     

 

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
      
       ,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
       
         request; 98      99     @Override100     public void setRequest(Map
        
          arg0) {101         this.request=arg0;102     }103     104     //****105     @Override106     public void prepare() throws Exception {107     }108     //****109     private Employee model;110     //****111     @Override112     public Employee getModel() {113         return model;114     }115 116 }
        
       
      

2 struts.xml

1 
       2  5  6 
      
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        12         
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           false18                 
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         26                 
         
          /WEB-INF/views/emp-list.jsp
         27                 28                 
         
          29                     
          text/html30                     
          inputStream31                    
         32                    
         
          /WEB-INF/views/emp-input.jsp
         33                    34                    
         
          /emp-list
              35         
        36     
       37 38 
      

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  5  6  7 
       8  9 10 37 38 39     
Employee List Page
40     41     
      
       42         没有员工信息43     
      44     
      
       45         
       
        55                 
       
       
        46             
          47                 
48                 
49                 
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          56                     
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58                     
59                     <%-- 60                         
61                         
62                      --%>63                     
66                     
69                     70                     
71                     
75                 
76             77         
        
         
          
ID
          
LASTNAME
          
EMAIL
          
BIRTH
          
CREATETIME
          
DEPT
         
         
          
${id}
          
${lastName}
          
${email }
          
${birth}
          
${createTime}
          
64                         
           65                     
          
67                         
           68                     
          
${department.departmentName}
          
72                         Delete73                         74                     
         
        
       
78     
      79 80 

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  5  6  7 
       8  9 10 11     
Employee Input Page
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      23     24 25