软件152 余建强
该文将以员工、部门两表带领大家进入SSH的整合教程：
源码下载：http://download.csdn.net/detail/qq_35318576/9877235
SSH 整合 jar 包下载：http://download.csdn.net/detail/qq_35318576/9874435
1.建立数据库命名为 ssh，建立项目命名为 SSH。（具体命名以实际为准，数据库表将会以 Hibernate 建表语句自动生成）
2.在项目 SSH 中的 lib 目录导入相应的 jar 包，我导入的 jar 包如下：
3.该码农项目目录结构以及显示界面如下（注：com.cqvie.converters 包无用，com.cqvie.util 包属于分页工具，具体使用详见我的下一条博客）：
4.在包 com.cqvie.model 中创建实体类 Employee.java 和 Department.java
package com.cqvie.model; import java.util.Date; import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.ManyToOne; import org.hibernate.annotations.GenericGenerator; @Entity
public class Employee { private String e_uuid; //员工的主键 UUID
private String e_name; //姓名
private String e_pwd; //密码
private String e_email; //邮箱
private Date e_birthday; //生日
private Date e_createDate; //创建日期
private Department e_department; //部门 @Id
@GeneratedValue(generator = "uuid")
@GenericGenerator(name = "uuid", strategy = "uuid")
public String getE_uuid() {
return e_uuid;
}
public void setE_uuid(String e_uuid) {
this.e_uuid = e_uuid;
}
public String getE_name() {
return e_name;
}
public void setE_name(String e_name) {
this.e_name = e_name;
}
public String getE_pwd() {
return e_pwd;
}
public void setE_pwd(String e_pwd) {
this.e_pwd = e_pwd;
}
public String getE_email() {
return e_email;
}
public void setE_email(String e_email) {
this.e_email = e_email;
}
public Date getE_birthday() {
return e_birthday;
}
public void setE_birthday(Date e_birthday) {
this.e_birthday = e_birthday;
}
public Date getE_createDate() {
return e_createDate;
}
public void setE_createDate(Date e_createDate) {
this.e_createDate = e_createDate;
}
@ManyToOne
public Department getE_department() {
return e_department;
}
public void setE_department(Department e_department) {
this.e_department = e_department;
} // @Override
// public String toString() {
// return "[e_uuid=" + e_uuid + ",e_name=" + e_name + ",e_pwd" + e_pwd
// + ",e_email=" + e_email + ",e_birthday" + e_birthday
// + ",e_createDate" + e_createDate + ",e_department" + e_department.getD_uuid() + "]";
// }
}
Employee.java
package com.cqvie.model; import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id; import org.hibernate.annotations.GenericGenerator; @Entity
public class Department { private String d_uuid; //部门的主键 UUID
private String d_name; //部门名 @Id
@GeneratedValue(generator = "uuid")
@GenericGenerator(name = "uuid", strategy = "uuid")
public String getD_uuid() {
return d_uuid;
}
public void setD_uuid(String d_uuid) {
this.d_uuid = d_uuid;
}
public String getD_name() {
return d_name;
}
public void setD_name(String d_name) {
this.d_name = d_name;
}
}
Department.java
5.Spring + Hibernate 整合：
配置 jdbc.properties 文件信息连接数据库：
jdbc.driverClassName=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/spring
jdbc.username=root
jdbc.password=123
jdbc.properties
配置 Spring 配置文件 applicationContext.xml：
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd"> <!-- 向容器注册注解方式 -->
<context:annotation-config /> <!-- 自动扫描包 -->
<context:component-scan base-package="com.cqvie" /> <!-- 导入 .properties 资源配置文件 -->
<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations" value="classpath:jdbc.properties" />
</bean> <!-- 配置数据源 dataSource -->
<bean id="dataSource" destroy-method="close" class="org.apache.commons.dbcp2.BasicDataSource">
<property name="driverClassName" value="${jdbc.driverClassName}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
</bean> <!-- 配置 sessionFactory -->
<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<!-- 扫描包下面的java文件 -->
<property name="packagesToScan">
<list>
<value>com.cqvie.model</value>
</list>
</property>
<!-- 配置 hibernate.cfg.xml 中的信息 -->
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.format_sql">true</prop>
<prop key="hibernate.hbm2ddl.auto">update</prop>
</props>
</property>
</bean> <!-- 配置 Spring 的声明式事务 -->
<!-- 事务管理器 -->
<bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean> <!-- 注解方式
<tx:annotation-driven transaction-manager="txManager"/>
-->
<!-- XML方式 -->
<aop:config>
<aop:pointcut expression="execution(public * com.cqvie.service..*.*(..))" id="bussinessService"/>
<aop:advisor pointcut-ref="bussinessService" advice-ref="txAdvice"/>
</aop:config> <tx:advice id="txAdvice" transaction-manager="txManager">
<tx:attributes>
<tx:method name="get*" read-only="true"/>
<tx:method name="*" propagation="REQUIRED"/>
</tx:attributes>
</tx:advice> <!-- ************************************************************************************************ -->
<!-- Spring 调用 Hibernate 的持久化操作 -->
<bean id="hibernateTemplate" class="org.springframework.orm.hibernate4.HibernateTemplate">
<property name="sessionFactory" ref="sessionFactory"></property>
</bean> </beans>
applicationContext.xml
配置日志文件 log4j2.xml，防止报错以及打印输出日志信息：
<?xml version="1.0" encoding="UTF-8"?>
<Configuration>
<Appenders>
<Console name="STDOUT" target="SYSTEM_OUT">
<PatternLayout pattern="%d %-5p [%t] %C{2} (%F:%L) - %m%n"/>
</Console>
</Appenders>
<Loggers>
<Logger name="com.opensymphony.xwork2" level="debug"/>
<Logger name="org.apache.struts2" level="debug"/>
<Root level="warn">
<AppenderRef ref="STDOUT"/>
</Root>
</Loggers>
</Configuration>
log4j2.xml
6.在包 com.cqvie.dao 中建立两个 Dao 的实现接口类 DepartmentDao.java 和 EmployeeDao.java：
package com.cqvie.dao;
import java.util.List;
import com.cqvie.model.Department;
public interface DepartmentDao {
public Department loadByUUID(String uuid); //根据 UUID 查询该部门信息
public String selectByName(String name); //根据部门名称查询该部门信息
public List<Department> getAllDepartment(); //获得全部部门信息
}
DepartmentDao.java
package com.cqvie.dao;
import java.util.List;
import com.cqvie.model.Employee;
public interface EmployeeDao {
public boolean isExists(String username, String password); //验证用户是否存在
public void saveOrUpdateEmployee(Employee employee); //更新或者保存用户
public List<Employee> getAllEmployee(); //获得所有的用户信息
public int getEmployeeByName(String name); //根据员工姓名查询该员工信息
public void deleteEmployee(Employee employee); //删除员工信息
public Employee getEmployee(String uuid); //根据 UUID 获得该员工的信息
/**
* 分页查询
* @param currentPage 当前页
* @param pageSize 每页显示的条数
* @return 查询的记录集合
*/
public List<Employee> queryForPage(int currentPage, int pageSize);
}
EmployeeDao.java
7.Dao 包中的接口类的实现类 DepartmentDaoImpl.java 和 EmployeeDaoImpl.java：
package com.cqvie.dao.impl; import java.util.List; import javax.annotation.Resource; import org.springframework.orm.hibernate4.HibernateTemplate;
import org.springframework.stereotype.Component; import com.cqvie.dao.DepartmentDao;
import com.cqvie.model.Department; @Component("departmentDao")
public class DepartmentDaoImpl implements DepartmentDao { private HibernateTemplate hibernateTemplate; public HibernateTemplate getHibernateTemplate() {
return hibernateTemplate;
}
@Resource
public void setHibernateTemplate(HibernateTemplate hibernateTemplate) {
this.hibernateTemplate = hibernateTemplate;
} /**
* 根据主键 UUID 查询信息
*/
@Override
public Department loadByUUID(String uuid) {
return this.hibernateTemplate.load(Department.class, uuid);
} /**
* 根据 部门名称 查询信息
*/
@SuppressWarnings("unchecked")
@Override
public String selectByName(String name) {
String hql = "select d_uuid from Department where d_name=?";
Object[] parmas = new Object[]{name};
List<String> list = (List<String>) hibernateTemplate.find(hql, parmas);
return list.get(0);
} /**
* 获取所有部门
*/
@SuppressWarnings("unchecked")
@Override
public List<Department> getAllDepartment() {
String hql = "from Department";
List<Department> departments = (List<Department>) hibernateTemplate.find(hql);
return departments;
} }
DepartmentDaoImpl.java
package com.cqvie.dao.impl; import java.util.List; import javax.annotation.Resource; import org.hibernate.Session;
import org.springframework.orm.hibernate4.HibernateCallback;
import org.springframework.orm.hibernate4.HibernateTemplate;
import org.springframework.stereotype.Component; import com.cqvie.dao.EmployeeDao;
import com.cqvie.model.Employee;
import com.cqvie.util.PageHibernateCallback; @Component("employeeDao")
public class EmployeeDaoImpl implements EmployeeDao { private HibernateTemplate hibernateTemplate; public HibernateTemplate getHibernateTemplate() {
return hibernateTemplate;
}
@Resource
public void setHibernateTemplate(HibernateTemplate hibernateTemplate) {
this.hibernateTemplate = hibernateTemplate;
} /**
* 判断该用户是否存在
*/
@SuppressWarnings("unchecked")
@Override
public boolean isExists(String username, String password) {
String hql = "from Employee where e_name=? and e_pwd=?";
Object[] params = new Object[]{username, password};
List<Employee> emp = (List<Employee>) hibernateTemplate.find(hql, params);
if(emp != null && emp.size() > 0)
return true;
return false;
} /**
* 保存一个用户
*/
@Override
public void saveOrUpdateEmployee(Employee employee) {
//this.hibernateTemplate.saveOrUpdate(employee);
Session session = hibernateTemplate.getSessionFactory().openSession();
session.saveOrUpdate(employee);
session.flush();
session.refresh(employee);
} /**
* 获得全部用户
*/
@SuppressWarnings("unchecked")
@Override
public List<Employee> getAllEmployee() {
String hql = "from Employee";
List<Employee> employees = (List<Employee>) hibernateTemplate.find(hql);
return employees;
} /**
* 根据员工姓名查询该员工信息
*/
@SuppressWarnings("unchecked")
@Override
public int getEmployeeByName(String name) {
String hql = "select e_uuid from Employee where e_name=?";
Object[] parmas = new Object[]{name};
List<String> list = (List<String>) hibernateTemplate.find(hql, parmas);
return list.size();
} /**
* 删除员工信息
*/
@Override
public void deleteEmployee(Employee employee) {
hibernateTemplate.delete(employee);
} /**
* 根据 UUID 获得该员工的信息
*/
@Override
public Employee getEmployee(String uuid) {
return hibernateTemplate.get(Employee.class, uuid);
} /**
* 分页查询
*/
@SuppressWarnings({ "unchecked", "rawtypes" })
@Override
public List<Employee> queryForPage(int currentPage, int pageSize) {
String hql = "from Employee";
List<Employee> list = (List<Employee>) this.hibernateTemplate.execute( (HibernateCallback<Employee>) new PageHibernateCallback(hql, new Object[] {}, currentPage, pageSize));
if(list != null && list.size() > 0) {
return list;
}
return null;
} }
EmployeeDaoImpl.java
8.在包 com.cqvie.service 中建立两个 Service 的实现接口类 DepartmentService.java 和 EmployeeService.java：
package com.cqvie.service;
import java.util.List;
import com.cqvie.model.Department;
public interface DepartmentService {
public Department loadByUUID(String uuid); //根据 UUID 查询该部门信息
public String selectByName(String name); //根据部门名称查询该部门信息
public List<Department> getAllDepartment(); //获得全部部门信息
}
DepartmentService.java
package com.cqvie.service; import java.util.List; import com.cqvie.model.Employee;
import com.cqvie.util.PageBean; public interface EmployeeService { public boolean isExists(Employee employee); //验证用户是否存在
public void saveOrUpdateEmployee(Employee employee); //更新或者保存用户
public List<Employee> getAllEmployee(); //获得所有的用户信息
public boolean getEmployeeByName(String name); //根据员工姓名查询该员工信息
public void deleteEmployee(Employee employee); //删除员工信息
public Employee getEmployee(String uuid); //根据 UUID 获得该员工的信息 public PageBean queryForPage(int pageSize,int currentPage); //分页显示数据
}
EmployeeService.java
9.Service 包中的接口类的实现类 DepartmentServiceImpl.java 和 EmployeeServiceImpl.java：
package com.cqvie.service.impl; import java.util.List; import javax.annotation.Resource; import org.springframework.stereotype.Component; import com.cqvie.dao.DepartmentDao;
import com.cqvie.model.Department;
import com.cqvie.service.DepartmentService; @Component("departmentService")
public class DepartmentServiceImpl implements DepartmentService { private DepartmentDao departmentDao; public DepartmentDao getDepartmentDao() {
return departmentDao;
}
@Resource
public void setDepartmentDao(DepartmentDao departmentDao) {
this.departmentDao = departmentDao;
} /**
* 根据 UUID 查询该部门信息
*/
@Override
public Department loadByUUID(String uuid) {
return this.departmentDao.loadByUUID(uuid);
} /**
* 根据部门名称查询该部门信息
*/
@Override
public String selectByName(String name) {
return this.departmentDao.selectByName(name);
} /**
* 获得全部部门信息
*/
@Override
public List<Department> getAllDepartment() {
return this.departmentDao.getAllDepartment();
} }
DepartmentServiceImpl.java
package com.cqvie.service.impl; import java.util.List; import javax.annotation.Resource; import org.springframework.stereotype.Component; import com.cqvie.dao.EmployeeDao;
import com.cqvie.model.Employee;
import com.cqvie.service.EmployeeService;
import com.cqvie.util.PageBean; @Component("employeeService")
public class EmployeeServiceImpl implements EmployeeService { private EmployeeDao employeeDao; public EmployeeDao getEmployeeDao() {
return employeeDao;
}
@Resource
public void setEmployeeDao(EmployeeDao employeeDao) {
this.employeeDao = employeeDao;
} /**
* 验证用户是否存在
*/
@Override
public boolean isExists(Employee employee) {
boolean result = employeeDao.isExists(employee.getE_name(), employee.getE_pwd());
return result;
} /**
* 更新或者保存用户
*/
@Override
public void saveOrUpdateEmployee(Employee employee) {
employeeDao.saveOrUpdateEmployee(employee);
} /**
* 获得所有的用户信息
*/
@Override
public List<Employee> getAllEmployee() {
return this.employeeDao.getAllEmployee();
} /**
* 根据员工姓名查询该员工信息
*/
@Override
public boolean getEmployeeByName(String name) {
return this.employeeDao.getEmployeeByName(name) > 0;
} /**
* 删除员工信息
*/
@Override
public void deleteEmployee(Employee employee) {
employeeDao.deleteEmployee(employee);
} /**
* 根据 UUID 获得该员工的信息
*/
@Override
public Employee getEmployee(String uuid) {
return employeeDao.getEmployee(uuid);
} /**
* 分页查询
*/
@Override
public PageBean queryForPage(int pageSize, int page) { int allRow = employeeDao.getAllEmployee().size();//memberDao.getAllRowCount(hql); //总记录数
int totalPage = PageBean.countTotalPage(pageSize, allRow); //总页数
final int offset = PageBean.countOffset(pageSize, page); //当前页开始记录
final int length = pageSize; //每页记录数
final int currentPage = PageBean.countCurrentPage(page);
List<Employee> list = employeeDao.queryForPage(offset, length); //"一页"的记录 //把分页信息保存到Bean中
PageBean pageBean = new PageBean();
pageBean.setPageSize(pageSize);
pageBean.setCurrentPage(currentPage);
pageBean.setAllRow(allRow);
pageBean.setTotalPage(totalPage);
pageBean.setList(list);
pageBean.init(); return pageBean;
} }
EmployeeServiceImpl.java
10.搭建 Struts2，配置 Struts2 的 xml 配置文件 struts.xml：
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
"http://struts.apache.org/dtds/struts-2.3.dtd"> <struts> <!-- 表示处于开发模式 -->
<constant name="struts.devMode" value="true" /> <!-- 在 URL 地址中动态指定（动态方法调用DMI） -->
<constant name="struts.enable.DynamicMethodInvocation" value="true" /> <!-- 解决中文乱码问题 -->
<constant name="struts.i18n.encoding" value="UTF-8" /> <package name="login" namespace="/" extends="struts-default"> <action name="login" class="loginAction">
<result name="success" type="redirect">emp-page</result>
<result name="error">/login.jsp</result>
</action> <action name="emp-*" class="employeeAction" method="{1}">
<result name="list">/index.jsp</result>
<result name="page">/index_page.jsp</result>
<result name="input" >/emp-add.jsp</result>
<result name="success" type="redirect">emp-page</result>
<result name="delete" type="redirect">emp-page</result>
<result name="update" >/emp-add.jsp</result>
<result name="ajax-success" type="stream">
<param name="contentType">text/html</param>
<param name="inputName">inputStream</param>
</result>
</action> </package> </struts>
struts.xml
11.配置 WEB 项目的配置文件 web.xml：
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
<display-name>SSH_Demo</display-name>
<welcome-file-list>
<welcome-file>login.jsp</welcome-file>
</welcome-file-list>
<!-- 加载 Spring 的配置文件 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
<!-- Spring 防止中文乱码 -->
<filter>
<filter-name>encodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- 扩大 Session 的取值范围 -->
<filter>
<filter-name>openSessionInView</filter-name>
<filter-class>org.springframework.orm.hibernate4.support.OpenSessionInViewFilter</filter-class>
<init-param>
<param-name>sessionFactoryBeanName</param-name>
<param-value>sessionFactory</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>openSessionInView</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- 加载 Struts2 -->
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
web.xml
12.功能的实现一，用户登录：
用户登录界面的编写 login.jsp：
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>用户登录</title>
</head>
<body>
<form action="login" method="post">
<h1>用户登录</h1> <hr>
<input type="text" name="username" /> <br><br>
<input type="password" name="password" /> <br><br>
<input type="submit" value="登录" />
<input type="reset" value="重置" />
</form> <s:debug></s:debug>
</body>
</html>
login.jsp
Struts2 实现登录验证类 LoginAction.java：
package com.cqvie.action; import java.util.Map; import javax.annotation.Resource; import org.apache.struts2.interceptor.ApplicationAware;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Component; import com.cqvie.model.Employee;
import com.cqvie.service.EmployeeService;
import com.cqvie.vo.LoginInfo;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven; @Component("loginAction")
@Scope("prototype")
public class LoginAction extends ActionSupport implements ModelDriven<LoginInfo>, ApplicationAware { private static final long serialVersionUID = 1L; private Map<String, Object> application;
private LoginInfo loginInfo = new LoginInfo();
private EmployeeService employeeService; public Map<String, Object> getApplication() {
return application;
}
public void setApplication(Map<String, Object> application) {
this.application = application;
}
public LoginInfo getLoginInfo() {
return loginInfo;
}
public void setLoginInfo(LoginInfo loginInfo) {
this.loginInfo = loginInfo;
}
public EmployeeService getEmployeeService() {
return employeeService;
}
@Resource(name = "employeeService")
public void setEmployeeService(EmployeeService employeeService) {
this.employeeService = employeeService;
} /**
* 验证用户是否存在
*/
@Override
public String execute() throws Exception {
Employee employee = new Employee();
employee.setE_name(loginInfo.getUsername());
employee.setE_pwd(loginInfo.getPassword());
boolean result = employeeService.isExists(employee);
application.put("uname", loginInfo.getUsername());
System.err.println(result + loginInfo.getUsername());
if(result)
return SUCCESS;
return ERROR;
} @Override
public LoginInfo getModel() {
return loginInfo;
} }
LoginAction.java
界面显示如下：
13.其他功能：增删改查，分页查询，判断该用户是否存在，EmployeeAction.java
package com.cqvie.action; import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.util.Date;
import java.util.List;
import java.util.Map; import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest; import org.apache.struts2.ServletActionContext;
import org.apache.struts2.interceptor.RequestAware;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Component; import com.cqvie.model.Department;
import com.cqvie.model.Employee;
import com.cqvie.service.DepartmentService;
import com.cqvie.service.EmployeeService;
import com.cqvie.util.PageBean;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;
import com.opensymphony.xwork2.Preparable; @Component("employeeAction")
@Scope("prototype")
public class EmployeeAction extends ActionSupport implements ModelDriven<Employee>, RequestAware, Preparable { private static final long serialVersionUID = 1L; private int page;
private PageBean pageBean;
public int getPage() {
return page;
}
public void setPage(int page) {
this.page = page;
}
public PageBean getPageBean() {
return pageBean;
}
public void setPageBean(PageBean pageBean) {
this.pageBean = pageBean;
} private Map<String, Object> request;
private Employee emp = new Employee();
private EmployeeService employeeService;
private DepartmentService departmentService;
private InputStream inputStream; public Employee getEmp() {
return emp;
}
public void setEmp(Employee emp) {
this.emp = emp;
}
public EmployeeService getEmployeeService() {
return employeeService;
}
@Resource
public void setEmployeeService(EmployeeService employeeService) {
this.employeeService = employeeService;
}
public DepartmentService getDepartmentService() {
return departmentService;
}
@Resource
public void setDepartmentService(DepartmentService departmentService) {
this.departmentService = departmentService;
}
public Map<String, Object> getRequest() {
return request;
}
public void setRequest(Map<String, Object> request) {
this.request = request;
}
public InputStream getInputStream() {
return inputStream;
}
public void setInputStream(InputStream inputStream) {
this.inputStream = inputStream;
} @Override
public Employee getModel() {
return emp;
} /**
* 修改用户时获得该 UUID
*/
ActionContext context = ActionContext.getContext();
HttpServletRequest req = (HttpServletRequest) context.get(ServletActionContext.HTTP_REQUEST);
String e_uuid = req.getParameter("e_uuid"); /**
* 获得所有员工的信息
* @return
*/
public String list() {
List<Employee> employees = employeeService.getAllEmployee();
request.put("employees", employees);
return "list";
} /**
* 跳转到修改、增加界面
*/
public String input() {
List<Department> departments = departmentService.getAllDepartment();
request.put("departments", departments);
return "input";
}
/**
* 修改界面的显示当前信息
*/
public void prepareInput() {
System.err.println("*******" + e_uuid + "********");
if(e_uuid != null) {
emp = employeeService.getEmployee(e_uuid);
}
} /**
* 更新或者保存信息
* @return
*/
public String save() {
if(e_uuid == null) {
emp.setE_createDate(new Date());
}
employeeService.saveOrUpdateEmployee(emp);
return "success";
}
public void prepareSave() {
System.out.println("****************save****************");
if(e_uuid == null) {
emp = new Employee();
} else {
emp = employeeService.getEmployee(e_uuid);
}
} /**
* 员工的删除
* @return
*/
/*public String delete() {
employeeService.deleteEmployee(emp);
return "delete";
}*/ /**
* 员工的 Ajax 删除
* @return
*/
public String delete() {
try {
employeeService.deleteEmployee(emp);
inputStream = new ByteArrayInputStream("1".getBytes("UTF-8"));
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
try {
inputStream = new ByteArrayInputStream("0".getBytes("UTF-8"));
} catch (UnsupportedEncodingException e1) {
e1.printStackTrace();
}
}
return "ajax-success";
} /**
* 用户的修改
* @return
*/
public String update() {
List<Department> departments = departmentService.getAllDepartment();
request.put("departments", departments);
return "update";
} /**
* 检验用户名是否存在
* @return
* @throws UnsupportedEncodingException
*/
public String validateE_name() throws UnsupportedEncodingException {
System.err.println(employeeService.getEmployeeByName(emp.getE_name()));
if(employeeService.getEmployeeByName(emp.getE_name())) {
inputStream = new ByteArrayInputStream("0".getBytes("UTF-8"));
} else {
inputStream = new ByteArrayInputStream("1".getBytes("UTF-8"));
}
return "ajax-success";
} @Override
public void prepare() throws Exception {} /**
* 分页显示数据
* @return
*/
public String page() {
//分页的pageBean,参数pageSize表示每页显示记录数,page为当前页
this.pageBean = employeeService.queryForPage(5, page);
List<Employee> pag = pageBean.getList();
request.put("employees", pag);
return "page";
} }
EmployeeAction.java
14.没有分页的显示界面 index.jsp：
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>首页</title>
<style type="text/css">
a { color: blue; }
</style>
<script type="text/javascript" src="js/jquery.js"></script>
<script type="text/javascript">
$(function() {
//提示框
$(".delete").click(function() {
var name = $(this).next(":input").val();
var flag = confirm("确定要删除 " + name + " 的信息吗？");
if(flag) {
var $tr = $(this).parent().parent();
var url = this.href;// "emp-delete";
var args = {};
$.post(url, args, function(data) {
if(data == "1") {
alert("删除成功！");
$tr.remove();
} else {
alert("删除失败！");
}
});
}
//取消删除
return false;
});
});
</script>
</head>
<body>
<h1>Welcome,<s:property value="#application.uname" /></h1> <hr> <a href="emp-input">增加用户</a> <br><br>
<s:if test="#request.employees == null || #request.employees.size() == 0">没有任何员工的信息！</s:if>
<s:else>
<table border="1" cellpadding="5" cellspacing="0">
<tr>
<td>UUID</td>
<td>姓名</td>
<td>密码</td>
<td>出生日期</td>
<td>邮箱</td>
<td>部门名称</td>
<td>创建时间</td>
<td>操作</td>
</tr>
<s:iterator value="#request.employees" var="e">
<tr>
<td>${e.e_uuid}</td>
<td>${e.e_name}</td>
<td>${e.e_pwd}</td>
<td>${e.e_birthday}</td>
<td>${e.e_email}</td>
<td>${e.e_department.d_name}</td>
<td>${e.e_createDate}</td>
<td>
<a href="emp-input?e_uuid=${e.e_uuid }">修改</a>
<a href="emp-delete?e_uuid=${e.e_uuid }" class="delete">删除</a>
<input type="hidden" value="${e.e_name}" />
</td>
</tr>
</s:iterator>
</table>
</s:else> <s:debug></s:debug>
</body>
</html>
index.jsp
有分页的显示页面 index_page.jsp：
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>首页2</title>
<style type="text/css">
a { color: blue; }
</style>
<script type="text/javascript" src="js/jquery.js"></script>
<script type="text/javascript">
$(function() {
//提示框
$(".delete").click(function() {
var name = $(this).next(":input").val();
var flag = confirm("确定要删除 " + name + " 的信息吗？");
if(flag) {
var $tr = $(this).parent().parent();
var url = this.href;// "emp-delete";
var args = {};
$.post(url, args, function(data) {
if(data == "1") {
alert("删除成功！");
$tr.remove();
} else {
alert("删除失败！");
}
});
}
//取消删除
return false;
});
});
</script>
</head>
<body>
<h1>Welcome,<s:property value="#application.uname" /></h1> <hr> <a href="emp-input">增加用户</a> <br><br>
<s:if test="#request.employees == null || #request.employees.size() == 0">没有任何员工的信息！</s:if>
<s:else>
<table border="1" cellpadding="5" cellspacing="0">
<tr>
<td>UUID</td>
<td>姓名</td>
<td>密码</td>
<td>出生日期</td>
<td>邮箱</td>
<td>部门名称</td>
<td>创建时间</td>
<td>操作</td>
</tr>
<s:iterator value="#request.employees" var="pag">
<tr>
<td>${pag.e_uuid}</td>
<td>${pag.e_name}</td>
<td>${pag.e_pwd}</td>
<td>${pag.e_birthday}</td>
<td>${pag.e_email}</td>
<td>${pag.e_department.d_name}</td>
<td>${pag.e_createDate}</td>
<td>
<a href="emp-input?e_uuid=${pag.e_uuid }">修改</a>
<a href="emp-delete?e_uuid=${pag.e_uuid }" class="delete">删除</a>
<input type="hidden" value="${pag.e_name}" />
</td>
</tr>
</s:iterator>
</table>
</s:else> 共 <s:property value="pageBean.allRow"/> 条记录
共 <s:property value="pageBean.totalPage"/> 页
当前第 <s:property value="pageBean.currentPage"/>页<br/>
<s:if test="%{pageBean.currentPage == 1}">
第一页 上一页
</s:if>
<s:else>
<a href="emp-page?page=1">首页</a>
<a href="emp-page?page=<s:property value="%{pageBean.currentPage-1}"/>">上一页</a>
</s:else>
<s:if test="%{pageBean.currentPage != pageBean.totalPage}">
<a href="emp-page?page=<s:property value="%{pageBean.currentPage+1}"/>">下一页</a>
<a href="emp-page?page=<s:property value="pageBean.totalPage"/>">最后一页</a>
</s:if>
<s:else>
下一页 最后一页
</s:else>
<s:debug></s:debug>
</body>
</html>
index_page.jsp
界面显示如下（上图带分页）：
15.增加信息和修改信息的界面，包含检验用户是否已存在的 Ajax 验证：
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>增加用户</title>
<script type="text/javascript" src="js/jquery.js"></script>
<script type="text/javascript">
$(function() {
//检验用户名是否存在
$(":input[name=e_name]").change(function() {
var val = $(this).val();
val = $.trim(val);
var $this = $(this); if(val != "") {
$this.nextAll("font").remove(); var url = "emp-validateE_name";
var args = {"e_name":val};
$.post(url, args, function(data) {
if(data == "1") { //表示可用
$this.after("<font color='green'>该姓名可以使用！</font>");
} else if(data == "0") { //表示不可用
$this.after("<font color='red'>该姓名已存在！</font>");
} else { //表示服务器错误
alert("服务器错误！");
}
});
} else {
alert("姓名不能为空！");
this.focus();
}
});
});
</script>
</head>
<body>
<h1>添加用户</h1> <hr> <s:form action="emp-save" method="post">
<s:if test="e_uuid != null">
<s:textfield name="e_name" label="姓名" disabled="true" />
<s:hidden name="e_uuid" />
</s:if>
<s:else>
<s:textfield name="e_name" label="姓名" />
</s:else>
<s:textfield name="e_pwd" label="密码" />
<s:textfield name="e_email" label="邮箱" /> <s:textfield name="e_birthday" label="出生日期">
<s:param name="value"><s:date name="e_birthday" format="yyyy-MM-dd"/></s:param>
</s:textfield> <s:select list="#request.departments" listKey="d_uuid" listValue="d_name" name="e_department.d_uuid" label="部门" />
<s:submit value="添加" />
</s:form> <s:debug></s:debug>
</body>
</html>
emp-add.jsp
显示页面如下（右图为修改界面）：
16.至此我们的 SSH 程序已经写完了，欢迎大家转载收藏，欢迎诸多大牛在评论区指教，博主非常感谢您的观看！！！