EXtreme Programming XP Тема 11. XP Для работы по администрированию...

eXtreme ProgrammingXPXP

Тема 11Тема 11Тема 11Тема 11

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Для работы по администрированию таблицы Department создаем классы:

DepartmentListController; EnterDepartmentController; DeleteDepartmentController; EnterDepartmentValidator; DelName – командный объект для формы

выбора удаляемого элемента; DeleteDepartmentController.

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Добавляем:<bean name="departmentListController"

class="com.visualpatterns.timex.controller.DepartmentListController">

<property name="departmentManager"><ref bean="departmentManager" />

</property><property name="successView">

<value>departmentlist</value></property>

<property name="applicationSecurityManager"><ref bean="applicationSecurityManager" />

</property>

</bean>

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Валидаторы:

<bean id="deleteDepartmentValidator"

class="com.visualpatterns.timex.controller.DeleteDepartmentValidator" />

<bean id="enterDepartmentValidator"class="com.visualpatterns.timex.controller.EnterDepartmentValidator" />

Менеджер:<bean id="departmentManager"

class="com.visualpatterns.timex.model.DepartmentManager" />

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<bean name="enterDepartmentConroller"

class="com.visualpatterns.timex.controller.EnterDepartmentController">

<property name="sessionForm"><value>true</value></property>

<property name="formView“><value>/enterdepartment</value></property>

<property name="successView">

<value>redirect:departmentlist.htm</value>

</property>

<property name="commandClass">

<value>com.visualpatterns.timex.model.Department</value>

</property>

<property name="validator">

<ref bean="enterDepartmentValidator" />

</property>

<property name="departmentManager“><ref bean="departmentManager"/>

</property>

<property name="applicationSecurityManager">

<ref bean="applicationSecurityManager" />

</property>

</bean>

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<bean name="deleteDepartmentConroller"

class="com.visualpatterns.timex.controller.DeletDepartmentController"><property name="sessionForm"><value>true</value></property><property

name="formView"><value>/deletedepartment</value></property><property name="successView">

<value>redirect:departmentlist.htm</value></property><property name="commandClass">

<value>com.visualpatterns.timex.controller.DelName</value></property><property name="validator">

<ref bean="deleteDepartmentValidator" /></property><property name="departmentManager">

<ref bean="departmentManager"/></property><property name="applicationSecurityManager">

<ref bean="applicationSecurityManager" /></property>

</bean>

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Назначение перехватчика на файлы:

<bean id="urlMapAuthenticate"

class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping"><property name="interceptors">

<list><ref bean="httpRequestInterceptor" /></list></property><property name="urlMap"><props><prop key="/departmentlist.htm">departmentListController

</prop><prop

key="/enterdepartment.htm">enterDepartmentConroller</prop> <prop key="/deletedepartment.htm">deleteDepartmentConroller</prop>

</props></property>

</bean>

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package com.visualpatterns.timex.controller;

public class SignLogin {

String login, password;

public String getLogin() {return login;}

public void setLogin(String login){this.login=login;}

public String getPassword(){return password;}

public void setPassword(String pass){ password=pass;}

}

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public List getDepartments()

{

List departmentList = null;

SessionFactory SessionFactory=new

Configuration().configure().buildSessionFactory();

Session session =SessionFactory.getCurrentSession();

session.beginTransaction();

try {

departmentList = session.createQuery(

"from Department ORDER BY name").list();

session.getTransaction().commit(); }

catch (HibernateException e){ session.getTransaction().rollback();

throw e;}

return departmentList;

}

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public Department getDepartment(String departmentCode)

{ Department department = null;

SessionFactory SessionFactory=new




try{ department = (Department) session.createQuery(

"from Department" + " where departmentCode = ?").setString(0,

departmentCode).uniqueResult();

session.getTransaction().commit();

SessionFactory.close();}

catch (HibernateException e)

{ session.getTransaction().rollback(); throw e;}

return department;

}

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public void saveDepartment(Department department)

{ SessionFactory SessionFactory=new




try{

session.saveOrUpdate(department);


SessionFactory.close();

}



}

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public void deleteDepartment(String departmentCode)

{ SessionFactory SessionFactory=new




try{

session.delete(session.load(Department.class, departmentCode));

session.flush();


SessionFactory.close();}



}

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import java.util.List;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.springframework.web.servlet.ModelAndView;

import org.springframework.web.servlet.mvc.Controller;

import com.visualpatterns.timex.model.Department;

import com.visualpatterns.timex.model.DepartmentManager;

import com.visualpatterns.timex.controller.ApplicationSecurityManager;

public class DepartmentListController implements Controller

{

private DepartmentManager departmentManager;

public static final String MAP_KEY = "departments";

private ApplicationSecurityManager applicationSecurityManager;

private String successView;

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public ModelAndView handleRequest(

HttpServletRequest request,

HttpServletResponse response) throws Exception

{

List departments = departmentManager.getDepartments();

return new ModelAndView(getSuccessView(), MAP_KEY, departments);

}

public ApplicationSecurityManager getApplicationSecurityManager()

{

return applicationSecurityManager;

}

public void setApplicationSecurityManager(ApplicationSecurityManager app)

{

applicationSecurityManager=app;

}

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public DepartmentManager getDepartmentManager()

{ return departmentManager;}

public void setDepartmentManager(DepartmentManager departmentManager)

{ this.departmentManager = departmentManager;}

public String getSuccessView()

{ return successView;}

public void setSuccessView(String successView)

{

this.successView = successView;

}

}

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import org.springframework.validation.Errors;


public class EnterDepartmentValidator implements

org.springframework.validation.Validator

{

public boolean supports(Class clazz)

{ return clazz.equals(Department.class);}

public void validate(Object command, Errors errors)

{

Department log = (Department) command;

if (log == null) return;

String code = log.getDepartmentCode();

if (code.length()>2 || code.length()<2)

errors.reject("error.enterdepartment.codeiswrong");

}

}

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import java.util.HashMap;

import java.util.Map;



import org.springframework.validation.BindException;

import org.springframework.web.bind.ServletRequestDataBinder;


import org.springframework.web.servlet.mvc.SimpleFormController;





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public class EnterDepartmentController extends SimpleFormController

{

private DepartmentManager departmentManager = null;


public static final String TID = "tid";

protected Object formBackingObject(HttpServletRequest request)

{ if (request.getParameter(TID) != null

&& request.getParameter(TID).trim().length() > 0)

{ String code1="";

try{ code1=new String(request.getParameter(TID).

trim().getBytes("ISO-8859-1"),"Cp1251");

}

catch(Exception e){}

return departmentManager.getDepartment(code1);

}

Department department = new Department(); return department;

}

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protected ModelAndView onSubmit( HttpServletRequest request,

HttpServletResponse response, Object command, BindException errors)

{ Department department = (Department) command;

try{ String code1=new String(department.getDepartmentCode().getBytes("ISO-8859-1"),"Cp1251");

String name1=new String(department.getName().getBytes("ISO-8859-1"),"Cp1251");

department.setDepartmentCode(code1);department.setName(name1);

} catch(Exception e){}

departmentManager.saveDepartment(department);

try{ String message=new String(getMessageSourceAccessor().getMessage("message.enterdepartment.savesuccess").getBytes("ISO-8859-1"),"Cp1251");

request.getSession().setAttribute("message",message);

}

catch(Exception e){}

return new ModelAndView(getSuccessView());}

// также следует добавить все set и get-методы для свойств класса

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import com.visualpatterns.timex.controller.SignLogin;

public class SignInValidator implements


{


{ return clazz.equals(SignLogin.class); }


{ SignLogin log = (SignLogin) command;


String login = log.getLogin();

String password = log.getPassword();

if (!(login.equals("admin") && password.equals("admin")))

errors.reject("error.login.invalid");

}

}

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import com.visualpatterns.timex.controller.DelName;

public class DeleteDepartmentValidator implements


{


{ return clazz.equals(DelName.class);}


{

DelName log = (DelName) command;


String code = log.getCode();

if (code.length()!=2)

errors.reject("error.login.invalid");

}

}

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import java.util.HashMap;

import java.util.Map;



import org.springframework.validation.BindException;

import org.springframework.web.bind.ServletRequestDataBinder;


import org.springframework.web.servlet.mvc.SimpleFormController;



import com.visualpatterns.timex.controller.DelName;


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public class DeletDepartmentController extends SimpleFormController

{

private DepartmentManager departmentManager = null;


protected Object formBackingObject(HttpServletRequest request)

{

return new DelName();

}

protected Map referenceData(HttpServletRequest request) throws Exception

{

// для создания списка выбора

HashMap model = new HashMap();

model.put("departments", departmentManager.getDepartments());

return model;

}

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protected ModelAndView onSubmit(

HttpServletRequest request,

HttpServletResponse response,

Object command,

BindException errors)

{

DelName code= (DelName) command;

String code1="";

try{

code1=new String(code.getCode().getBytes("ISO-8859-1"),"Cp1251");

}catch(Exception e){}

departmentManager.deleteDepartment(code1);

request.getSession().setAttribute("message",getMessageSourceAccessor().

getMessage("message.deletedepartment.deletesuccess"));

return new ModelAndView(getSuccessView());

}

// а также get и set-методы для всех свойств контроллера

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<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>

<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt"%>

<%@ page contentType="text/html; charset=windows-1251" %>

<html>

<head>

<title>Список всех отделов</title>

</head>

<body>

<h1>Список всех отделов</h1>

<div align="right" nowrap="nowrap"><a href="signout.htm">Выйти из системы</a></div>

<p align="center">



<c:if test="${not empty message}">

<font color="green"><c:out value="${message}" /></font>

<c:set var="message" value="" scope="session" />

</c:if></p>

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<p align="center"><a href="enterdepartment.htm">Добавить отдел</a>

</p>

<p align="center"><a href="deletedepartment.htm">Удалить отдел</a>

</p>

<table border="1" align="center" cellpadding="8" cellspacing="0">

<tr><th>Code</th><th>Name</th></tr>

<c:forEach items="${departments}" var="department">

<tr><td align="center">

<a href='enterdepartment.htm?tid=<c:out value="${department.departmentCode}"/>'><c:out value="${department.departmentCode}"/></a>

</td>

<td align="center"><c:out value="${department.name}" /></td>

</tr>

</c:forEach>

</table>

</body>

</html>

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<%@ taglib prefix="spring" uri="http://www.springframework.org/tags"%>


<html>

<head><title>Добавление/редактирование отдела</title></head>

<body>

<form method="post">

<h1>Информация об отделе</h1>

<a href="signout.htm" align="rignt">Выйти из системы</a></td>

<tr>

<td colspan="2" align="center">

<center><spring:bind path="command.*">

<c:if test="${not empty status.errorMessages}">

<c:forEach var="error" items="${status.errorMessages}">

<font color="red"><c:out value="${error}" escapeXml="false" />

</font> <br />

</c:forEach>

</c:if> </spring:bind>

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<c:if test="${not empty message}">

<font color="green"><c:out value="${message}" /></font>

<c:set var="message" value="" scope="session" />

</c:if></center><br/>

<table border="1" align="center">

<tr> <th>Код отдела</th> <th>Название отдела</th> </tr>

<tr> <td><spring:bind path="command.departmentCode">

<input name='<c:out value="${status.expression}"/>'

value='<c:out value="${status.value}"/>' type="text" size="4"

maxlength="6">

</spring:bind></td>

<td><spring:bind path="command.name">

<input name='<c:out value="${status.expression}"/>'

value='<c:out value="${status.value}"/>' type="text" size="4"

maxlength="6“> </spring:bind></td>

</tr></table>

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<p align="center"><input name="save" type="submit" value="Save"> <input

name="cancel" type="button" value="Cancel"

onClick="javascript:window.location='departmentlist.htm'"> <br> <br>

</p>

</td>

</tr>

</table>

</form>

</body>

</html>

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<%@ taglib prefix="spring" uri="http://www.springframework.org/tags"%>


<html>

<head><title>Удаление отдела</title></head>

<body>

<form method="post">

<h1>Выберите отдел для удаления</h1>

<a href="signout.htm" align="rignt">Выйти из системы</a></td>

<tr><spring:bind path="command.code">

<select name='<c:out value="${status.expression}"/>'>

<option value=""></option>

<c:forEach items="${departments}" var="department">

<option value='<c:out value="${department.departmentCode}"/>'>

<c:out value="${department.name}"/>

</option>

</c:forEach>

</select>

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<br/><br/></spring:bind>

<p align="center"><input name="save" type="submit" value="Save"> <input

name="cancel" type="button" value="Cancel"

onClick="javascript:window.location='departmentlist.htm'"> <br>

<br>

</p>

</form>

</body>

</html>

EXtreme Programming XP Тема 11. XP Для работы по администрированию...

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