Practice 3-design management module, step 1, new module, and department management

I .. design entity classes/Tables

1. Write entity class department. Java:

package cn.itcast.oa.domain;public class Department {private Long id;private String name;private String description;public Long getId() {return id;}public void setId(Long id) {this.id = id;}public String getName() {return name;}public void setName(String name) {this.name = name;}public String getDescription() {return description;}public void setDescription(String description) {this.description = description;}}

2. Write the Department ing file department. HBM. xml

<?xml version="1.0"?><!DOCTYPE hibernate-mapping PUBLIC        "-//Hibernate/Hibernate Mapping DTD 3.0//EN"        "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
3. Add the object class to hibernate. cfg. xml
<?xml version=‘1.0‘ encoding=‘utf-8‘?><!DOCTYPE hibernate-configuration PUBLIC        "-//Hibernate/Hibernate Configuration DTD 3.0//EN"        "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"><!-- 2. other configuration --><property name="show_sql">true</property><property name="hbm2ddl.auto">update</property><property name="connection.pool_size">1</property><!--3. mapping --><mapping resource="cn/itcast/oa/domain/User.hbm.xml" /><mapping resource="cn/itcast/oa/domain/Role.hbm.xml" /><mapping resource="cn/itcast/oa/domain/Department.hbm.xml" /></session-factory>
4. Test class generation table: springtest. Java
package cn.itcast.oa.test;import org.hibernate.SessionFactory;import org.junit.Test;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;public class SpringTest {private ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");@Testpublic void testSessionFactory() throws Exception{SessionFactory sessionFactory = (SessionFactory)ac.getBean("sessionFactory");System.out.println(sessionFactory);}}
The table is successfully generated !!!
2. Analysis has several functions, corresponding to several requests
1. Build the Action Framework
Note: @ controller @ scope ("prototype ")
Package CN. itcast. oa. view. action; import javax. annotation. resource; import Org. springframework. context. annotation. scope; import Org. springframework. stereotype. controller; import COM. opensymphony. xwork2.actioncontext; import COM. opensymphony. xwork2.actionsupport;
@ Controller @ scope ("prototype") public class departmentaction extends actionsupport {/* list */Public String list () throws exception {return "list ";} /* Delete */Public String Delete () throws exception {return "tolist";}/* add page */Public String addui () throws exception {return "saveui ";} /* Add */Public String add () throws exception {return "tolist";}/* modify page */Public String editui () throws exception {return "saveui ";} /* modify */Public string edit () throws exception {return "tolist ";}}
2. Configure struts. xml:
<! -- Department management --> <action name = "department _ *" class = "departmentaction" method = "{1}"> <result name = "list">/WEB-INF/JSP/ departmentaction/list. JSP </result> <result name = "saveui">/WEB-INF/JSP/departmentaction/saveui. JSP </result> <result name = "tolist" type = "redirectaction"> department_list </result> </Action>
3. Write two simple JSP files. The verification is successful.
4. Complete the action:
Package CN. itcast. oa. view. action; import Java. util. list; import javax. annotation. resource; import Org. springframework. context. annotation. scope; import Org. springframework. stereotype. controller; import CN. itcast. oa. domain. department; import CN. itcast. oa. service. departmentservice; import COM. opensymphony. xwork2.actioncontext; import COM. opensymphony. xwork2.actionsupport; import COM. opensymphony. xwork2.modeldriven; @ controller @ scope ("prototype") public class departmentaction extends actionsupport implements modeldriven <Department >{@ resourceprivate departmentservice; private department model = new Department (); /* list */Public String list () throws exception {list <Department> departmentlist = departmentservice. findall (); actioncontext. getcontext (). put ("departmentlist", departmentlist); Return "list";}/* Delete */Public String Delete () throws exception {departmentservice. delete (model. GETID (); Return "tolist";}/* add page */Public String addui () throws exception {return "saveui ";} /* Add */Public String add () throws exception {departmentservice. save (model); Return "tolist";}/* modify page */Public String editui () throws exception {/* prepare echo data */Department = departmentservice. getbyid (model. GETID (); actioncontext. getcontext (). getvaluestack (). push (Department); Return "saveui";}/* modify */Public string edit () throws exception {// 1. retrieve the original object Department = departmentservice from the database. getbyid (model. GETID (); // 2. set the Department attribute to be modified. setname (model. getname (); department. setdescription (model. getdescription (); // 3. update to database departmentservice. update (Department); Return "tolist";} public department GetModel () {// todo auto-generated method stubreturn model ;}}
 
5. Write the service interface, departmentservice. java. It is the method created by Ctrl + 1 when calling the method in action.
package cn.itcast.oa.service;import java.util.List;import cn.itcast.oa.domain.Department;public interface DepartmentService {List<Department> findAll();void delete(Long id);void save(Department model);Department getById(Long id);void update(Department department);}
6. Create the departmentservice interface implementation class, departmentserviceimpl. Java
Note: @ service, @ transactional. @ resource is used when Dao is used.
package cn.itcast.oa.service.impl;import java.util.List;import javax.annotation.Resource;import org.springframework.stereotype.Service;import org.springframework.transaction.annotation.Transactional;import cn.itcast.oa.dao.DepartmentDao;import cn.itcast.oa.domain.Department;import cn.itcast.oa.service.DepartmentService;@Service@Transactionalpublic class DepartmentServiceImpl implements DepartmentService{@Resourceprivate DepartmentDao departmentDao;public List<Department> findAll() {return departmentDao.findAll();}public void delete(Long id) {departmentDao.delete(id);}public void save(Department model) {departmentDao.save(model);}public Department getById(Long id) {return departmentDao.getById(id);}public void update(Department department) {departmentDao.update(department);}}
Iii. Create Dao interface and implementation class
1. Dao interface, departmentdao. java. Be sure to inherit the basedao Interface
package cn.itcast.oa.dao;import cn.itcast.oa.base.BaseDao;import cn.itcast.oa.domain.Department;public interface DepartmentDao extends BaseDao<Department>{
}
2. Implementation class departmentdaoimpl. Java,
Note 1. inherit from basedaoimpl, 2. Implement departmentdao 3. @ Repository
package cn.itcast.oa.dao.impl;import org.springframework.stereotype.Repository;import cn.itcast.oa.base.BaseDaoImpl;import cn.itcast.oa.dao.DepartmentDao;import cn.itcast.oa.domain.Department;@Repositorypublic class DepartmentDaoImpl extends BaseDaoImpl<Department> implements DepartmentDao{}
　　
4. Write the JSP page:
Create the departmentaction folder in the JSP path and create two JSP folders: List. jsp and saveui. jsp.
List. jsp:
<% @ Page Language = "Java" Import = "Java. util. * "pageencoding =" UTF-8 "%> <% @ taglib prefix =" S "uri ="/Struts-tags "%> <% string Path = request. getcontextpath (); %> <HTML> 
Saveui. jsp
<% @ Page Language = "Java" Import = "Java. util. * "pageencoding =" UTF-8 "%> <% @ taglib prefix =" S "uri ="/Struts-tags "%> <% string Path = request. getcontextpath (); %> <HTML> 
　　
　　
　　
 
 
　
 
Practice 3-design management module, step 1, new module, and department management