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一个小菜鸡用ssm框架设计的一个简易的酒店信息管理系统_小菜鸡框架

作者：知新_RL | 2024-04-18 17:36:37

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小菜鸡框架

项目结构

在这里插入图片描述

web配置文件

<?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>hotel</display-name>
  <welcome-file-list>
    <welcome-file>userlogin.jsp</welcome-file>
  </welcome-file-list>
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:applicationContext.xml</param-value>
  </context-param>
  <listener>
    <listener-class>
	     org.springframework.web.context.ContextLoaderListener
	</listener-class>
  </listener>
  <filter>
    <filter-name>encoding</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>encoding</filter-name>
    <url-pattern>*</url-pattern>
  </filter-mapping>
  <servlet>
    <servlet-name>hotel</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:springmvc-config.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>hotel</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>
</web-app>

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applicationContext.xml文件：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns="http://www.springframework.org/schema/beans"
	xmlns:aop="http://www.springframework.org/schema/aop"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:tx="http://www.springframework.org/schema/tx"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
	http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
	http://www.springframework.org/schema/aop 
	http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
	http://www.springframework.org/schema/tx 
	http://www.springframework.org/schema/tx/spring-tx-4.3.xsd
	http://www.springframework.org/schema/context 
	http://www.springframework.org/schema/context/spring-context-4.3.xsd"> 
	
	<!-- 开启扫描 -->
	<context:component-scan base-package="com.serviceImpl"></context:component-scan>
	<!-- 读取db.properties -->
	<context:property-placeholder location="classpath:db.properties"/>
	<!-- 配置数据源 -->
	<bean id="dataSource" class="org.apache.commons.dbcp2.BasicDataSource">
		<!-- 数据库驱动 -->
		<property name="driverClassName" value="${jdbc.driver}"></property>
		<!-- 连接数据库url -->
		<property name="url" value="${jdbc.url}"/>
		<!-- 连接数据库的用户名密码 -->
		<property name="username" value="${jdbc.username}"></property>
		<property name="password" value="${jdbc.password}"></property>
		<!-- 最大连接数 -->
		<property name="maxTotal" value="${jdbc.maxTotal}"></property>
		<!-- 最大空闲连接数 -->
		<property name="maxIdle" value="${jdbc.maxIdle}"></property>
		<!-- 初始化连接数 -->
		<property name="initialSize" value="${jdbc.initialSize}"></property>
	</bean>
	
	<!-- 事务管理器，依赖于数据源 -->
	<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<property name="dataSource" ref="dataSource"></property>
	</bean>
	<!-- 开启事务注解，注册事务管理驱动 -->
	<tx:annotation-driven transaction-manager="transactionManager"/>
	<!-- 配置MyBatis工厂 -->
	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
		<!-- 注入数据源 -->
		<property name="dataSource" ref="dataSource"></property>
		<!-- 指定核心配置文件的位置 -->
		<property name="configLocation" value="classpath:mybatis-config.xml"></property>
		
	</bean>
	
	<!-- Mapper代理开发(基于MapperScannerConfigurer) -->
	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
		<property name="basePackage" value="com.mapper"></property>
	</bean>
</beans>

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mybatis配置文件：

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
	<!-- 别名定义 -->
	<typeAliases>
		<package name="com.po" />
	</typeAliases>
</configuration>

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db.properties文件信息：

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/hotel?characterEncoding=utf-8&serverTimezone=UTC&&useAffectedRows=true
jdbc.username=root
jdbc.password=241070
jdbc.maxTotal=30
jdbc.maxIdle=10
jdbc.initialSize=5


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log4j.properties文件信息：

# Global logging configuration
log4j.rootLogger=ERROR, stdout
# MyBatis logging configuration...
log4j.logger.com.itheima=DEBUG
# Console output...
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n


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mvc.xml配置信息

<?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:mvc="http://www.springframework.org/schema/mvc"
  xmlns:context="http://www.springframework.org/schema/context"
  xmlns:tx="http://www.springframework.org/schema/tx"
  xsi:schemaLocation="http://www.springframework.org/schema/beans 
  http://www.springframework.org/schema/beans/spring-beans-4.3.xsd 
  http://www.springframework.org/schema/mvc 
  http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd 
  http://www.springframework.org/schema/context 
  http://www.springframework.org/schema/context/spring-context-4.3.xsd">
	<!-- 配置包扫描器，扫描@Controller注解的类 -->
	<context:component-scan base-package="com.controller" />
	<!-- 加载注解驱动 -->
	<mvc:annotation-driven />
	<!-- 配置视图解析器 -->
	<bean class=
    "org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix" value="/WEB-INF/jsp/" />
		<property name="suffix" value=".jsp" />
	</bean>
</beans>

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记住一个关系：mybatis.xml;和其他两个文本文件是在applicationContext.xml文件里面配置的，而applicationContext.xml和mvc.xml是web.xml里面配置的

登录页面jsp（首页）

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!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>酒店信息管理系统登录</title>
</head>
<body>
<h2 align="center"><font color=blue>酒店管理系统登录页面</font></h2>
	<form action="login" method="post">
	<table align="center" border="1">
		<tr>
			<td>用户名:</td>
			<td><input type="text" name="username"></td>
		</tr>
		<tr>
			<td>密&nbsp;&nbsp;码:</td>
			<td><input type="password" name="password"></td>
		</tr>
		<tr>
			<td><input type="submit" value="登录" name="login"></td>
			<td><input type="reset" value="重置" name="reset"></td>
		</tr>
	</table>
	<p align="center"><a href="preregister" color=blue size="20">注册用户</a></p>
	</form>
</body>
</html>

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登陆成功的系统首页面

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!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>酒店信息管理系统首页</title>
</head>
<body>
 <h2 align="center"><font color=blue>酒店信息管理系统首页</font></h2>
 <p align="right"><a href="userinfo?username=${sessionScope.username}" color="blue" size="20" >当前用户信息</a></p>
<p align="right"><a href="logout" color="blue" size="20">注销</a></p>
	<table align="center" border="1" style="width: 40%; max-width: 50%;border-spacing:10px;">
		<tr>
			<td align="center"><a href="roomlist">客房管理</a></td>
		</tr>
		<tr>
			<td align="center"><a href="customerlist">入住客户管理</a></td>
		</tr>
		<tr>
			<td align="center"><a href="stafflist">人事管理</a></td>
		</tr>
		<tr>
			<td align="center"><a href="memberlist">会员管理</a></td>
		</tr>
		<tr>
			<td align="center"><a href="userlist">系统用户管理</a></td>
		</tr>
	</table>
	
</body>
</html>

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服务service接口

package com.service;

import java.util.List;

import com.po.User;

public interface UserService {
	List<User> findAllUser();
	List<User> findUserByName(String name);
	User findUserByid(String id);
	int addUser(User user);
	void deleteUsers(String[] idArray);
	int updateUser(User user);
}


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实现服务的接口

package com.serviceImpl;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import com.mapper.UserMapper;
import com.po.User;
import com.service.UserService;

@Service
@Transactional
public class userServiceImpl implements UserService{

	@Autowired
	private UserMapper userMapper;
	public List<User> findAllUser() {
		return userMapper.findAllUser();
	}

	public List<User> findUserByName(String username) {
		return userMapper.findUserByName(username);
	}

	public int addUser(User user) {
		return userMapper.addUser(user);
	}

	public void deleteUsers(String[] nameArray) {
		for(int i=0;i<nameArray.length;i++) {
			userMapper.deleteUsers(nameArray[i]);
		}
	}

	public int updateUser(User user) {
		return userMapper.updateUser(user);
	}

	public User findUserByid(String id) {
		
		return userMapper.findUserByid(id);
	}

}


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po类

package com.po;

public class User {
	
	private String username;
	private String password;
	private String sex;
	private String tel;
	private String address;
	private String number;
	private String tips;
	public String getUsername() {
		return username;
	}
	public void setUsername(String username) {
		this.username = username;
	}
	public String getPassword() {
		return password;
	}
	public void setPassword(String password) {
		this.password = password;
	}
	public String getSex() {
		return sex;
	}
	public void setSex(String sex) {
		this.sex = sex;
	}
	public String getTel() {
		return tel;
	}
	public void setTel(String tel) {
		this.tel = tel;
	}
	public String getAddress() {
		return address;
	}
	public void setAddress(String address) {
		this.address = address;
	}
	public String getNumber() {
		return number;
	}
	public void setNumber(String number) {
		this.number = number;
	}
	public String getTips() {
		return tips;
	}
	public void setTips(String tips) {
		this.tips = tips;
	}

}


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mapper接口类

package com.mapper;

import java.util.List;

import org.apache.ibatis.annotations.Param;

import com.po.User;

public interface UserMapper {
	List<User> findAllUser();
	List<User> findUserByName(@Param("username")String username);
	User findUserByid(String username);
	int addUser(User user);
	int deleteUsers(@Param("username")String idArray);
	int updateUser(User user);
}


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mapper的xml文件类

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
    "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.mapper.UserMapper">
	<!-- 模糊查询 -->
	<select id="findUserByName" parameterType="String" resultType="User">
		<bind name="username" value="'%'+username+'%'" />
		select * from user
		<where>
			<if test="username!=null and username!=''">
				and username like #{username}
			</if>
		</where>
	</select>
	<select id="findUserByid" parameterType="String" resultType="User">
		select * from user where username=#{username};
	</select>
	<select id="findAllUser" resultType="User">
		select * from user;
	</select>
	<insert id="addUser" parameterType="User">
		insert into user(username,password,sex,tel,address,number,tips) values(#{username},#{password},#{sex},#{tel},#{address},#{number},#{tips});
	</insert>
	<delete id="deleteUsers" parameterType="String">
		delete from user where username=${username};
	</delete>
	<update id="updateUser" parameterType="User">
		update user
	 	<set>
		  <if test="username!=null and username!=''">
		  	username=#{username},
		  </if>
		  <if test="password!=null and password!=''">
		  	password=#{password},
		  </if>
		  <if test="sex!=null and sex!=''">
		  	sex=#{sex},
		  </if>
		  <if test="tel!=null">
		  	tel=#{tel},
		  </if>
		  <if test="address!=null">
		  	address=#{address},
		  </if>
		  <if test="number!=null">
		    number=#{number},
		  </if>
		  <if test="tips!=null">
		    tips=#{tips},
		  </if>
		</set>
		where username=#{username}
	</update>
	
</mapper>

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controller类

package com.controller;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;

import com.po.User;
import com.service.UserService;
@Controller
public class userController {
	@Autowired
	private UserService userService;
	
	@RequestMapping("/preregister")
	public String preregister() {
		return "register/userRegister";
	}
	@RequestMapping("/userregister")
	public void register(User user,HttpServletRequest request,HttpServletResponse response ) throws IOException {
		PrintWriter out = null;
		response.setContentType("text/html; charset=UTF-8"); //转码
		user.setUsername(request.getParameter("username"));
		String password_01=request.getParameter("password_01");
		String password_02=request.getParameter("password_02");
		if(password_01.equals(password_02)&&password_01!=null&&!password_01.equals("")) {
			user.setPassword(password_01);
		}else {
			try {
				out = response.getWriter();
				out.flush();
			    out.println("<script>");
			    out.println("alert('前后密码不一致！');");
			    out.println("history.back();");
			    out.println("</script>");
			} catch (IOException e) {
				// TODO 自动生成的 catch 块
				e.printStackTrace();
			}finally {
				out.close();	
			}
		}
		user.setSex(request.getParameter("sex"));
		user.setTel(request.getParameter("tel"));
		user.setAddress(request.getParameter("address"));
		user.setNumber(request.getParameter("number"));
		user.setTips(request.getParameter("tips"));
		int row=userService.addUser(user);
		if (row>0) {
			out = response.getWriter();
			out.flush();
		    out.println("<script>");
		    out.println("alert('恭喜您！注册成功！');");
		    out.println("history.back();");
		    out.println("</script>");
		    out.close();
		}
	}
	@RequestMapping("/login")
	public String userlogin(@RequestParam(value="username")String username,@RequestParam(value="password")String password,HttpServletResponse response,HttpServletRequest request,Model model) throws IOException {
		PrintWriter out = null;
		HttpSession session=request.getSession();
		User user=userService.findUserByid(username);
		if(user!=null&&user.getPassword().equals(password)) {
			
			session.setAttribute("username", username);//登录成功则在session对象中添加用户名信息
			response.setContentType("text/html; charset=UTF-8"); //转码
			try {
				out = response.getWriter();
				out.flush();
			    out.println("<script>");
			    out.println("alert('登陆成功！');");
			    out.println("</script>");
			    return "index/systemindex";
			} catch (IOException e) {
				e.printStackTrace();
			}
		}else {
			response.setContentType("text/html; charset=UTF-8"); //转码
			try {
				out = response.getWriter();
				out.flush();
			    out.println("<script>");
			    out.println("alert('用户名或者密码错误！');");
			    out.println("history.back();");
			    out.println("</script>");
			} catch (IOException e) {
				// TODO 自动生成的 catch 块
				e.printStackTrace();
			}finally {
				out.close();
			}
		}
		return null;	
	}
	@RequestMapping(value="/userinfo")
	public String userinfo(User user,String username,Model model){
		user=userService.findUserByid(username);
		model.addAttribute("user", user);
		return "index/userinfo";
	}
	@RequestMapping(value="/systemindex")
	public String systemindex() {
		return "index/systemindex";
	}
	@RequestMapping(value="/userpreupdate")
	public String userpreupdate(User user,String username,Model model) {
		user=userService.findUserByid(username);
		model.addAttribute("user", user);
		return "index/userupdate";
	}
	@RequestMapping(value="/userupdate")
	public void userupdate(User user,HttpServletRequest request,HttpServletResponse response) throws IOException {
		PrintWriter out = null;
		response.setContentType("text/html; charset=UTF-8"); //转码
		String username=request.getParameter("username");
		out = response.getWriter();
		user.setUsername(username);
		user.setTel(request.getParameter("tel"));
		user.setAddress(request.getParameter("address"));
		user.setNumber(request.getParameter("number"));
		user.setTips(request.getParameter("tips"));
		int row=userService.updateUser(user);
		System.out.println(row);
		if (row>0) {
			out = response.getWriter();
			
		    out.println("<script>");
		    out.println("alert('恭喜您！修改成功！');");
		    out.println("history.back();");
		    out.println("</script>");
		    out.close();
		}	
	}
	@RequestMapping(value="logout")
	public void logout(HttpSession session,HttpServletResponse response) throws IOException {
		session.removeAttribute("username");//移除session中用户名的信息，表示已注销
		PrintWriter out = null;
		response.setContentType("text/html; charset=UTF-8"); //转码
		out = response.getWriter();
		out.flush();
	    out.println("<script>");
	    out.println("alert('注销成功！');");
	    out.print("window.location='userlogin.jsp'");
	    out.println("</script>");
		out.close();
	}
	@RequestMapping(value="userlist")
	public String userlist(Model model) {
		List<User> userlist=userService.findAllUser();
		model.addAttribute("userlist",userlist);
		return "systemuser/userlist";
	}
	@RequestMapping(value="findUserByName")
	public String findUser(HttpServletRequest request,Model model) {
		String username=request.getParameter("username");
		List<User> userlist=userService.findUserByName(username);
		model.addAttribute("userlist",userlist);
		return "systemuser/userselect";
	}
	@RequestMapping(value="/userdelete")
	public String studentDelete(String[] usernameArray) {
		userService.deleteUsers(usernameArray);
		return "redirect:userlist";
	}
}


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重点：
要记住ssm框架完成一次请求的步骤：
①用户通过jsp页面发送请求；
②服务器通过controller接收请求并采用对应注解的方式调用服务请求的方法；
③在方法里面通过对数据的操作，然后再返回处理结果。
这就是一次完整的请求处理步骤。
关键是在方法里面的操作如何，在方法里面一般是定义一个service，比如userService，userService去调用userServiceImpl中的方法，而在userServiceImpl中使用Mapper接口中的方法对数据进行操纵。而操纵的 方法在mapper.xml文件中定义，这里要注意mapper接口中的方法名要跟xml文件中的id名要一致，不然会出错。

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