您的位置：首页 > 编程语言 > Java开发

雇员管理系统-SSH版（十）

2017-12-24 09:37 375 查看

修改删除雇员信息
一页面层关键代码
my.js

$(document).ready(function(){

$(".delid").click(function(){
return window.confirm("是否删除该用户!");
})

})

listEmp.jsp

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"; %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd";>
<html>
<head>
<title>用户列表</title>
<script type="text/javascript" language="javascript" src="/myssh/js/jquery-1.3.1.js"></script>
<script type="text/javascript" language="javascript" src="/myssh/js/my.js"></script>
</head>
<body>
<h1>用户列表</h1>
<table>
<tr><td>id</td><td>name</td><td>email</td><td>grade</td><td>salary</td><td>修改用户</td><td>删除用户</td></tr>
<c:forEach items="${emplist}" var="emp">
<tr><td>${emp.id }</td><td>${emp.name }</td>
<td>${emp.email }</td><td>${emp.grade }</td>
<td>${emp.salary }</td><td><a  href="${pageContext.request.contextPath}/employee.do?flag=goUpdEmpUi&id=${emp.id }">修改用户</a></td>
<td><a class="delid" href="${pageContext.request.contextPath}/employee.do?flag=delEmp&id=${emp.id }">删除用户</a></td>
</tr>
</c:forEach>
</table>
<c:forEach var="i" begin="1" end="${pageCount}">
<a href="${pageContext.request.contextPath}/employee.do?flag=goListEmp&pageNow=${i }">${i }</a>
</c:forEach>
</body>
</html>

updEmpUi.jsp

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd";>
<html>
<head>
<title>My JSP 'updEmpUi.jsp' starting page</title>
</head>

<body>
<h1>修改雇员</h1>
<form action="${pageContext.request.contextPath}/employee.do?flag=updEmp" method="post">
<table>
<tr><td>id</td><td><input type="text"  readonly="readonly" value="${emp.id }" name="id"/></td></tr>
<tr><td>name</td><td><input type="text" value="${emp.name }" name="name" /></td></tr>
<tr><td>email</td><td><input type="text" value="${emp.email }" name="email" /></td></tr>
<tr><td>grade</td><td><input type="text"  value="${emp.grade }" name="grade" /></td></tr>
<tr><td>pwd</td><td><input type="text" value="${emp.pwd }" name="pwd" /></td></tr>
<tr><td>salary</td><td><input type="text" value="${emp.salary }" name="salary" /></td></tr>
<tr><td>department</td><td>
<!-- 这里部门的信息，应当从数据库提出，而不能写死. -->
<select name="departmentId">
<option value="1">财务部</option>
<option value="2">人事部</option>
</select>
</td></tr>
<tr><td><input type="submit" value="修改"/></td>
<td><input type="reset" value="重填" /></td></tr>
</table>
</form>
</body>
</html>

二控制层关键代码

package com.hsp.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.hsp.domain.Department;
import com.hsp.domain.Employee;
import com.hsp.service.interfaces.DepartmentServiceInter;
import com.hsp.service.interfaces.EmployeeServiceInter;
import com.hsp.web.forms.EmployeeForm;
public class EmployeeAction extends DispatchAction {
private DepartmentServiceInter departmentService;
private EmployeeServiceInter  employeeService;

public void setEmployeeService(EmployeeServiceInter employeeService) {
this.employeeService = employeeService;
}
public void setDepartmentService(DepartmentServiceInter departmentService) {
this.departmentService = departmentService;
}
public ActionForward addEmpUi(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {
// TODO Auto-generated method stub
//打通线路
return mapping.findForward("goAddEmpUi");
}
//处理添加雇员的请求
public ActionForward addEmp(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {
// TODO Auto-generated method stub

//看看这里是否能够得到用户提交的各种数据
EmployeeForm employeeForm=(EmployeeForm)form;
//System.out.println(employeeForm.getDepartmentId()+" "+employeeForm.getEmail());

//创建一个Employee对象

Employee employee=new Employee();
employee.setEmail(employeeForm.getEmail());
employee.setGrade(Integer.parseInt(employeeForm.getGrade()));
employee.setHiredate(new java.util.Date());
employee.setName(employeeForm.getName());
employee.setPwd(employeeForm.getPwd());
employee.setSalary(Float.parseFloat(employeeForm.getSalary()));

//该雇员是哪个部门!
employee.setDepartment((Department)departmentService.findById(Department.class, Integer.parseInt(employeeForm.getDepartmentId())));
//保存
try {
employeeService.add(employee);
} catch (Exception e) {
return mapping.findForward("opererr");
}
return mapping.findForward("operok");
}

public ActionForward goListEmp(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {

String s_pageNow=request.getParameter("pageNow");
int pageNow=1;
if(s_pageNow!=null){
pageNow=Integer.parseInt(s_pageNow);
}

// TODO Auto-generated method stub
request.setAttribute("emplist", employeeService.showEmployList(3,pageNow));
//测试
int pageCount=employeeService.getPageCount(3);
request.setAttribute("pageCount", pageCount);
//打通线路
return mapping.findForward("goListEmp");
}

//删除雇员
public ActionForward delEmp(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {

//获取雇员的id
String id=request.getParameter("id");
System.out.println("删除雇员id = "+id);

try {
employeeService.delById(Employee.class, Integer.parseInt(id));
} catch (Exception e) {
return mapping.findForward("opererr");
// TODO: handle exception
}

//打通线路
return mapping.findForward("operok");
}

//跳转到雇员的界面
public ActionForward goUpdEmpUi(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {

//获取雇员的id
String id=request.getParameter("id");

//获取雇员
Employee e=(Employee) employeeService.findById(Employee.class, Integer.parseInt(id));

//显示雇员信息，在下一个页面
request.setAttribute("emp", e);

return mapping.findForward("goUpdEmpUi");

}

//更新雇员
public ActionForward updEmp(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {

//获取表单
EmployeeForm ef=(EmployeeForm)form;

//ef->doamin
Employee employee=new Employee();
employee.setId(Integer.parseInt(ef.getId()));
employee.setEmail(ef.getEmail());
employee.setGrade(Integer.parseInt(ef.getGrade()));
employee.setName(ef.getName());
employee.setPwd(ef.getPwd());
employee.setSalary(Float.parseFloat(ef.getSalary()));
employee.setDepartment((Department)departmentService.findById(Department.class, Integer.parseInt(ef.getDepartmentId())));

try {
employeeService.update(employee);
} catch (Exception e) {
return mapping.findForward("opererr");
}
return mapping.findForward("operok");
}
}

三业务层关键代码
EmployeeService

package com.hsp.service.imp;
import java.io.Serializable;
import java.util.List;
import javax.annotation.Resource;
import org.hibernate.Hibernate;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.springframework.transaction.annotation.Transactional;
import com.hsp.basic.BasicService;
import com.hsp.domain.Department;
import com.hsp.domain.Employee;
import com.hsp.service.interfaces.EmployeeServiceInter;
//这里配置@Transactional用处是让spring的事务管理器接管该 Service的事务.
public class EmployeeService extends BasicService implements EmployeeServiceInter {
//显示所有雇员
public List showEmployList(int pageSize,int pageNow){
String hql="from Employee order by id";
return this.executeQueryByPage(hql, null, pageNow, pageSize);
}

public int getPageCount(int pageSize){
String hql="select count(*) from Employee";
return this.queryPageCount(hql, null, pageSize);
}
//验证用户
public Employee checkEmploye(Employee e) {
// TODO Auto-generated method stub
System.out.println("checkEmploye");
String hql="from Employee where id=? and pwd=?";
Object []parameters ={e.getId(),e.getPwd()};

List list=this.executeQuery(hql, parameters);
if(list.size()==0){
return null;
}else{
return (Employee) list.get(0);
}
}
}

BasicService

package com.hsp.basic;
import java.io.Serializable;
import java.util.Iterator;
import java.util.List;
import javax.annotation.Resource;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.transaction.annotation.Transactional;
@Transactional
public abstract class BasicService implements BasicServiceInter {
@Resource
private SessionFactory sessionFactory;

public void setSessionFactory(SessionFactory sessionFactory) {
this.sessionFactory = sessionFactory;
}
public void add(Object obj) {

this.sessionFactory.getCurrentSession().save(obj);
}
//统一查询方法(hql)
public List executeQuery(String hql, Object[] parameters) {
// TODO Auto-generated method stub

Query query=this.sessionFactory.getCurrentSession().createQuery(hql);
//注入?值
if(parameters!=null && parameters.length>0){
for(int i=0;i<parameters.length;i++){
query.setParameter(i, parameters[i]);

}
}

return query.list();
}
//分页
public List executeQueryByPage(String hql, Object[] parameters,
int pageNow, int PagesSize) {
// TODO Auto-generated method stub
Query query=this.sessionFactory.getCurrentSession().createQuery(hql);

if(parameters!=null && parameters.length>0){
for(int i=0;i<parameters.length;i++){
query.setParameter(i, parameters[i]);

}
}

//体现分页
return query.setFirstResult((pageNow-1)*PagesSize).setMaxResults(PagesSize).list();
}
//统一的修改和删除
public List executeUpdate(String hql, Object[] parameters) {
// TODO Auto-generated method stub
return null;
}
public Object findById(Class clazz, Serializable id) {
// TODO Auto-generated method stub
return this.sessionFactory.getCurrentSession().get(clazz, id);
}
public Object uniqueQuery(String hql, Object[] parameters) {
// TODO Auto-generated method stub
Query query=this.sessionFactory.getCurrentSession().createQuery(hql);
//给?赋值
if(parameters!=null && parameters.length>0){
for(int i=0;i<parameters.length;i++){
query.setParameter(i, parameters[i]);
}
}

return query.uniqueResult();
}

public int queryPageCount(String hql, Object[] parameters, int pageSize) {
// TODO Auto-generated method stub
//获取rowCount
/*    List list=this.executeQuery(hql, parameters);
Iterator iteator=list.iterator();
if(iteator.hasNext()){

}*/
Object obj=this.uniqueQuery(hql, parameters);
//System.out.println("obj value= "+ obj);//obj如果等于rowConunt
int rowCount=Integer.parseInt(obj.toString());

return (rowCount-1)/pageSize+1;
}

public void delById(Class clazz,Serializable id) {
// TODO Auto-generated method stub
Session session=this.sessionFactory.getCurrentSession();
session.delete(this.findById(clazz, id));
}

public void update(Object object) {
// TODO Auto-generated method stub
this.sessionFactory.getCurrentSession().update(object);
}
}

内容来自用户分享和网络整理，不保证内容的准确性，如有侵权内容，可联系管理员处理

标签： spring

相关文章推荐

新的分享

章节导航