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java里添加员工信息_SSH_框架整合4--添加员工信息

news 来源：原创 2024/4/28 16:38:22

SSH_框架整合4--添加员工信息

一、

1 index.jsp:添加：添加员工向信息:Add Employees' Information

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 packagecom.atguigu.ssh.dao;2

3 importjava.util.List;4

5 importcom.atguigu.ssh.entities.Department;6

7 public class DepartmentDao extendsBaseDao{8

9 //获取查询到的Department集合

10 public ListgetAll(){11 String hql="FROM Department";12 returngetSession().createQuery(hql).list();13 }14 }

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

1 packagecom.atguigu.ssh.service;2

3 importjava.util.List;4

5 importcom.atguigu.ssh.dao.DepartmentDao;6 importcom.atguigu.ssh.entities.Department;7

8 public classDepartmentService {9

10 privateDepartmentDao departmentDao;11 public voidsetDepartmentDao(DepartmentDao departmentDao) {12 this.departmentDao =departmentDao;13 }14

15 public ListgetAll(){16 returndepartmentDao.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 privateDepartmentService departmentService;3 public voidsetDepartmentService(DepartmentService departmentService) {4 this.departmentService =departmentService;5 }6 //3-2 实现添加员工信息的方法

7 publicString input(){8 request.put("departments", departmentService.getAll());9 returnINPUT;10 }

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3 完善applicationContext-beans.xml

1 <?xml version="1.0" encoding="UTF-8"?>

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">

23 scope="prototype">

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4 完善struts.xml，添加显示添加页面语句：/WEB-INF/views/emp-input.jsp

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

2 pageEncoding="UTF-8"%>

Insert title here

Employee Input Page

19 listKey="id"listValue="departmentName"name="department.id"

20 label="Department">

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二、

1 实现ModelDriven拦截器操作

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

1 //****

2 @Override3 public void prepare() throwsException {4 }5 //****

6 privateEmployee model;7 //****

8 @Override9 publicEmployee getModel() {10 returnmodel;11 }12 //**** 4 使用ModelDriven拦截器方法存储添加的信息

13 publicString save(){14 System.out.println(model);15 model.setCreateTime(newDate());16 employeeService.saveorUpdate(model);17 returnSUCCESS;18 }19 //****

20 public voidprepareSave(){21 model=newEmployee();22 }23

24 //**** 拦截器的方法

25 public voidprepareInput(){26

27 }

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(2)Struts.xml配置下拦截器：

6 false

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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 packagecom.atguigu.ssh.converters;2

3 importjava.text.DateFormat;4 importjava.text.ParseException;5 importjava.text.SimpleDateFormat;6 importjava.util.Date;7 importjava.util.Map;8

9 importorg.apache.struts2.util.StrutsTypeConverter;10

11 public class SSHDateConverter extendsStrutsTypeConverter {12

13 privateDateFormat dateFormat;14

15 publicSSHDateConverter()16 {17 dateFormat = new SimpleDateFormat("yyyy-MM-dd");18 }19

20 @Override21 publicObject 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 returndateFormat.parse(value);27 } catch(ParseException e) {28 e.printStackTrace();29 }30 }31 }32 returnvalues;33 }34

35 @Override36 publicString convertToString(Map context, Object o) {37 if(o instanceofDate){38 Date date=(Date)o;39 returndateFormat.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 voidsaveOrUpadate(Employee employee){3 getSession().saveOrUpdate(employee);4 }

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(2)EmployeeService.java

1 //3 添加、存储

2 public voidsaveorUpdate(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 publicString save(){3 System.out.println(model);4 model.setCreateTime(newDate());5 employeeService.saveorUpdate(model);6 returnSUCCESS;7 }8 //****

9 public voidprepareSave(){10 model=newEmployee();11 }

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4 显示页面：格式化时间操作：

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结构图：

文件：

1 EmployeeAction.java

1 packagecom.atguigu.ssh.actions;2

3 importjava.io.ByteArrayInputStream;4 importjava.io.InputStream;5 importjava.io.UnsupportedEncodingException;6 importjava.util.Date;7 importjava.util.Map;8

9 importorg.apache.struts2.interceptor.RequestAware;10

11 importcom.atguigu.ssh.entities.Employee;12 importcom.atguigu.ssh.service.DepartmentService;13 importcom.atguigu.ssh.service.EmployeeService;14 importcom.opensymphony.xwork2.ActionSupport;15 importcom.opensymphony.xwork2.ModelDriven;16 importcom.opensymphony.xwork2.Preparable;17

18 public class EmployeeAction extends ActionSupport implementsRequestAware,19 ModelDriven,Preparable{20

21 private static final long serialVersionUID = 1L;22

23 privateEmployeeService employeeService;24

25 public voidsetEmployeeService(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 publicString save(){31 System.out.println(model);32 model.setCreateTime(newDate());33 employeeService.saveorUpdate(model);34 returnSUCCESS;35 }36 //****

37 public voidprepareSave(){38 model=newEmployee();39 }40

41 //3-1 查询Department

42 privateDepartmentService departmentService;43 public voidsetDepartmentService(DepartmentService departmentService) {44 this.departmentService =departmentService;45 }46 //3-2 实现添加员工信息的方法

47 publicString input(){48 request.put("departments", departmentService.getAll());49 returnINPUT;50 }51

52 //**** 拦截器的方法

53 public voidprepareInput(){54

55 }56

57 //2 删除

58 privateInteger id;59 public voidsetId(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 privateInputStream inputStream;68

69 publicInputStream getInputStream() {70 returninputStream;71 }72

73 publicString 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 publicString list(){92 request.put("employees", employeeService.getAll());93 return "list";94 }95

96 //放到页面里

97 private Maprequest;98

99 @Override100 public void setRequest(Maparg0) {101 this.request=arg0;102 }103

104 //****

105 @Override106 public void prepare() throwsException {107 }108 //****

109 privateEmployee model;110 //****

111 @Override112 publicEmployee getModel() {113 returnmodel;114 }115

116 }

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2 struts.xml

1 <?xml version="1.0" encoding="UTF-8" ?>

2 "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"

4 "http://struts.apache.org/dtds/struts-2.3.dtd">

17 false

25 method="{1}">

26 /WEB-INF/views/emp-list.jsp

29 text/html

30 inputStream

32 /WEB-INF/views/emp-input.jsp

34 /emp-list

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3 emp-list.jsp

2 pageEncoding="UTF-8"%>

Insert title here

11 //删除, 使用 ajax 的方式

12 $(function(){13 $(".delete").click(function(){14 varlastName=$(this).next(":input").val();15 varflag=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 varurl=this.href;21 varargs={"time":newDate()};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