原生SSM框架整合(没有使用Maven)

忘是亡心i 2021-08-19 16:49 356阅读 0赞

首先,SSM框架的整合除了需要各大框架本身的jar包之外,

# 还需要一个mybatis-spring的jar包,不然无法完成整合操作 #

首先来看整个项目的结构:

![70][]

**jsp文件夹**:由于我们编写的jsp文件里面可能包含业务逻辑,因此为了保证安全性,将其放置在**客户端无法访问的WEB-INF目录下**

r**esource静态资源文件:**由于静态资源一般都是些css,html或者JavaScript文件,客户端访问网站的时候回自动下载到客户机上,因此并没有安全性可言,所以**我们不必将resource文件夹放置在WEB-INF目录下,只需将其放置在项目的根目录下即可**

##  Web.xml配置文件 ##

<?xml version="1.0" encoding="UTF-8"?>
    <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    	xmlns="http://xmlns.jcp.org/xml/ns/javaee"
    	xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
    	id="WebApp_ID" version="4.0">
     
    	
    	
    	<context-param>
    		<param-name>contextConfigLocation</param-name>
    		
    		<param-value>classpath:com/config/Spring/Spring.xml</param-value>
    	</context-param>
    	
    	
    	<listener>
    		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    	</listener>
    	
    	
    	<servlet>
    		<servlet-name>springMVC</servlet-name>
    		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    		
    		<init-param>
    			
    			<param-name>contextConfigLocation</param-name>
    			
    			
    			<param-value>classpath:com/config/SpringMVC/springMVC-servlet.xml</param-value>
    		</init-param>
    		
    		<load-on-startup>1</load-on-startup>
    	</servlet>
    	
    	<servlet-mapping>
    		
    		<servlet-name>springMVC</servlet-name>
    		
    		<url-pattern>/</url-pattern>
    	</servlet-mapping>
    	
    	<filter>
    		<filter-name>characterEncodingFilter</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>
    		<init-param>
    			<param-name>forceEncoding</param-name>
    			<param-value>true</param-value>
    		</init-param>
    	</filter>
    	<filter-mapping>
    		<filter-name>characterEncodingFilter</filter-name>
    		<url-pattern>/*</url-pattern>
    	</filter-mapping>
    </web-app>

# Spring配置文件 #

<?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:aop="http://www.springframework.org/schema/aop"
    	xmlns:context="http://www.springframework.org/schema/context"
    	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
    		http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
    		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd">
    	
    	
     	<context:annotation-config />
     	
        <context:component-scan base-package="com.service" />
    	
    	
    	
    	<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
    		<property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
    		<property name="url" value="jdbc:mysql://localhost:3306/shop?characterEncoding=UTF-8&useSSL=false"></property>
    		<property name="username" value="root"></property>
    		<property name="password" value="admin"></property>
    	</bean>
    	
    	
    	<bean id="sqlSession" class="org.mybatis.spring.SqlSessionFactoryBean">
    		
    		<property name="typeAliasesPackage" value="com.pojo"></property>
    		
    		<property name="dataSource" ref="dataSource"></property>
    		
    		<property name="mapperLocations" value="classpath:com/mapper/*.xml"></property>
    	</bean>
    	
    	
    	
    	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    		<property name="basePackage" value="com.mapper"></property>
    	</bean>
     
    </beans>

# SpringMVC配置文件 #

# 数据表脚本代码: #

CREATE TABLE `s_user` (
      `userid` int(11) NOT NULL AUTO_INCREMENT,
      `username` varchar(255) DEFAULT NULL,
      `password` varchar(255) DEFAULT NULL,
      `email` varchar(255) DEFAULT NULL,
      `phone` varchar(255) DEFAULT NULL,
      `status` varchar(255) NOT NULL DEFAULT '0',
      `code` varchar(255) DEFAULT NULL,
      PRIMARY KEY (`userid`)
    ) ENGINE=InnoDB AUTO_INCREMENT=16 DEFAULT CHARSET=utf8;

# 实体类(即POJO)User: #

package com.pojo;
     
    public class User {
    	
    	private Integer userid;
    	private String username;
    	private String password;
    	private String email;
    	private String phone;
    	private Integer status;
    	private String code;
    	public Integer getUserid() {
    		return userid;
    	}
    	public void setUserid(Integer userid) {
    		this.userid = userid;
    	}
    	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 getEmail() {
    		return email;
    	}
    	public void setEmail(String email) {
    		this.email = email;
    	}
    	public String getPhone() {
    		return phone;
    	}
    	public void setPhone(String phone) {
    		this.phone = phone;
    	}
    	public Integer getStatus() {
    		return status;
    	}
    	public void setStatus(Integer status) {
    		this.status = status;
    	}
    	public String getCode() {
    		return code;
    	}
    	public void setCode(String code) {
    		this.code = code;
    	}
    	@Override
    	public String toString() {
    		return "User [userid=" + userid + ", username=" + username + ", password=" + password + ", email=" + email
    				+ ", phone=" + phone + ", status=" + status + ", code=" + code + "]";
    	}
    }

# UserMapper.xml配置文件: #

<?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">
    	<select id="getAllUsers" resultType="User">
    		SELECT * FROM s_user
    	</select>
    	<select id="getUserById" parameterType="int" resultType="User">
    		SELECT *
    		FROM s_user WHERE userid = #{userid}
    	</select>
    	<insert id="insertUser" parameterType="User"
    		useGeneratedKeys="true" keyProperty="userid">
    		INSERT INTO s_user(username,password,email,phone)
    		VALUES(#{username},#{password},#{email},#{phone})
    	</insert>
    	<update id="updateUserById" parameterType="User">
    		UPDATE s_user SET username = #{username},
    						  password = #{password},
    						  email = #{email},
    						  phone = #{phone}
    						  WHERE 
    						  userid = #{userid}
    	</update>
    	<delete id="deleteUserById" parameterType="int">
    		DELETE  FROM s_user WHERE userid = #{userid}
    	</delete>
    </mapper>

# UserMapper.java接口: #

package com.mapper;
     
    import com.pojo.User;
    import java.util.*;
     
    public interface UserMapper {
    	public List<User> getAllUsers();
     
    	public User getUserById(int userid);
     
    	public boolean deleteUserById(int userid);
     
    	public boolean insertUser(User user);
     
    	public boolean updateUserById(User user);
    }

# 注意:XXMapper.xml配置文件和XXMapper.java接口必须放置在同一包下,否则初始化Spring的时候可能会报错; #

# 业务逻辑层 #

## 1.UserService接口: ##

package com.service;
     
    import com.pojo.User;
    import java.util.*;
     
    public interface UserService {
    	public List<User> getAllUsers();
     
    	public User getUserById(int userid);
     
    	public boolean deleteUserById(int userid);
     
    	public boolean insertUser(User user);
     
    	public boolean updateUserById(User user);
    }

## 2.UserServiceImpl接口实现类: ##

package com.service.impl;
     
    import java.util.List;
     
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Service;
     
    import com.mapper.UserMapper;
    import com.pojo.User;
    import com.service.UserService;
     
    //使用@Service注解标记该类,表明该类属于业务逻辑层,并由Spring IOC容器接手其生命周期
    @Service
    public class UserServiceImpl implements UserService {
    	//使用@Autowired注解标记该对象后,在之后使用该对象则会有IOC分配,无需手动new出来;
    	@Autowired
    	UserMapper userMapper;
    	
    	@Override
    	public List<User> getAllUsers() {
    		// TODO Auto-generated method stub
    		return userMapper.getAllUsers();
    	}
     
    	@Override
    	public User getUserById(int userid) {
    		
    		// TODO Auto-generated method stub
    		return userMapper.getUserById(userid);
    	}
     
    	@Override
    	public boolean deleteUserById(int userid) {
    		// TODO Auto-generated method stub
    		return userMapper.deleteUserById(userid);
    	}
     
    	@Override
    	public boolean insertUser(User user) {
    		// TODO Auto-generated method stub
    		return userMapper.insertUser(user);
    	}
     
    	@Override
    	public boolean updateUserById(User user) {
    		// TODO Auto-generated method stub
    		return userMapper.updateUserById(user);
    	}
     
    	
    	
    }

# Controller控制层 #

## 1.UserController控制器类 ##

package com.controller;
     
    import java.util.List;
    import java.util.Map;
     
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RequestMethod;
    import org.springframework.web.bind.annotation.RequestParam;
    import org.springframework.web.servlet.ModelAndView;
     
    import com.pojo.User;
    import com.service.UserService;
    import com.service.impl.UserServiceImpl;
     
    //使用@Controller注解标注该类,表明此类为控制器类;
    @Controller
    public class UserController {
    	@Autowired
    	UserService userService;
    	@RequestMapping(value="/user")
    	public String user(Map<Object,Object> map) {
    		
    		List<User> userList =  userService.getAllUsers();
    		map.put("user", userList);
    		return "user";
    		
    	}
    	
    	
    }

# user.jsp: #

<%@ page language="java" contentType="text/html; charset=UTF-8"
        pageEncoding="UTF-8"%>
    <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
    <!DOCTYPE html>
    <html>
    <head>
    <meta charset="UTF-8">
    <title>User</title>
    </head>
    <body>
    	<h1>${requestScope.user}</h1>
    </body>
    </html>

## 启动服务器并打开浏览器,在浏览器地址栏输入: ##

## [http://localhost:8080/Shop/user][http_localhost_8080_Shop_user] ##

得到以下结果:

![70 1][]

至此,最基础的SSM框架搭建完成,后续学习了Maven可以再用Maven搭建一次SSM框架~~~

转自：[https://blog.csdn.net/weixin\_39549527/article/details/81089435][https_blog.csdn.net_weixin_39549527_article_details_81089435]

[70]: /images/20210726/405baf149f6042d2bd56c36c47377c5d.png
[http_localhost_8080_Shop_user]: http://localhost:8080/Shop/user
[70 1]: /images/20210726/a8e56605b42449b9b906c84c33bb95b6.png
[https_blog.csdn.net_weixin_39549527_article_details_81089435]: https://blog.csdn.net/weixin_39549527/article/details/81089435