SpringMVC+Spring+Mybatis(SSM)项目基础架构搭建

绝地灬酷狼 2022-06-13 08:46 201阅读 0赞

参考http://blog.csdn.net/evankaka/article/details/45790533/   搭建而成

以下为工程目录

![20170703134210539][]

# 1.创建web项目 #

# 2.导入相关jar包 #

以下是用到的包

下载地址：[ssm项目搭建所需jar包][ssm_jar]

![Center][]

# 3.先完成mybatis 的配置 #

## （1）数据建立 ##

![20170703150724220][]

## （2）根据数据库建立实体类**com.l.entity.User.java** ##

package com.l.entity;
    
    public class User {
    	private int id;
    	private String name;
    	private String address;
    
    	public int getId() {
    		return id;
    	}
    
    	public void setId(int id) {
    		this.id = id;
    	}
    
    	public String getName() {
    		return name;
    	}
    
    	public void setName(String name) {
    		this.name = name;
    	}
    
    	public String getAddress() {
    		return address;
    	}
    
    	public void setAddress(String address) {
    		this.address = address;
    	}
    
    	@Override
    	public String toString() {
    		// TODO Auto-generated method stub
    		return "User[id=" + id + ",name=" + name + ",address=" + address + "]";
    	}
    
    }

##    （3）创建映射类  **com.l.mapper.UserMapper.java** ##

package com.l.mapper;
    
    import com.l.entity.User;
    
    public interface UserMapper {
    	public User selectUserById(int id);
    }

##    （4）创建实体类映射文件（Mapper文件）  **User.xml直接放在src目录下** ##

<?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.l.mapper.UserMapper">
    	<select id="selectUserById" parameterType="int" resultType="User">
    		select * from user where id = #{id}
    	</select>
    </mapper>

## （5）创建数据操作Dao层  新建com.l.dao.UserDao ##

package com.l.dao;
    
    import com.l.entity.User;
    
    public interface UserDao {
    	public User findUserById(int id);
    }

## （6）创建dao层实现类  com.l.dao.impl.UserDaoImpl ##

package com.l.dao.impl;
    
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Component;
    
    import com.l.dao.UserDao;
    import com.l.entity.User;
    import com.l.mapper.UserMapper;
    
    @Component
    public class UserDaoImpl implements UserDao {
    	@Autowired
    	private UserMapper usermapper;
    
    	@Override
    	public User findUserById(int id) {
    		User user = usermapper.selectUserById(id);
    		return user;
    	}
    
    }

## （7）编写mybatis配置文件  configuration.xml ##

<?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>
    	<typeAliases>
    		
    		<typeAlias alias="User" type="com.l.entity.User"></typeAlias>
    	</typeAliases>
    
    	
    	<mappers>
    		<mapper resource="User.xml" />
    	</mappers>
    </configuration>

# 2.完成spring配置 #

本文采用spring注入mapperImpl

## （1）采用@Autowired自动注入 ##

##    （2）编写spring配置文件  applicationContext.xml  直接存放在src目录下 ##

<?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"
    	xsi:schemaLocation="    
               http://www.springframework.org/schema/beans    
               http://www.springframework.org/schema/beans/spring-beans-3.2.xsd    
               http://www.springframework.org/schema/aop    
               http://www.springframework.org/schema/aop/spring-aop-3.2.xsd  
               http://www.springframework.org/schema/context    
               http://www.springframework.org/schema/context/spring-context-3.2.xsd">
    	
    	<bean id="dataSource"
    		class="org.springframework.jdbc.datasource.DriverManagerDataSource">
    		<property name="driverClassName" value="com.mysql.jdbc.Driver" />
    		<property name="url" value="jdbc:mysql://localhost:3306/test" />
    		<property name="username" value="root" />
    		<property name="password" value="1234" />
    	</bean>
    
    
    	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
    		<property name="dataSource" ref="dataSource" />
    		<property name="configLocation" value="classpath:configuration.xml" />
    	</bean>
    
    	<bean id="userMapper" class="org.mybatis.spring.mapper.MapperFactoryBean">
    		<property name="mapperInterface" value="com.l.mapper.UserMapper" />
    		<property name="sqlSessionFactory" ref="sqlSessionFactory" />
    	</bean>
    	
    	<context:component-scan base-package="com.l.dao" />
    
    </beans>

## （3）在web.xml中启动spring ##

<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>

# 3.完成springMVC配置 #

## （1）配置web.xml文件对springMVC的启动，加上spring的配置和字符设置 ##

<?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>SpringMvc_Mybatis</display-name>
    
    	
    	<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>
    
    	<servlet>
    		<servlet-name>springmvc</servlet-name>
    		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    		<init-param>
    			<param-name>contextConfigLocation</param-name>
    			<param-value>/WEB-INF/spmvc-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>
    	</filter>
    	<filter-mapping>
    		<filter-name>CharacterEncodingFilter</filter-name>
    		<url-pattern>/*</url-pattern>
    	</filter-mapping>
    </web-app>

## （2）配置springMVC设置   创建spmvc-servlet.xml在WEB-INF目录下 ##

<?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"
    	xsi:schemaLocation="  
            http://www.springframework.org/schema/beans  
            http://www.springframework.org/schema/beans/spring-beans-4.2.xsd  
            http://www.springframework.org/schema/mvc  
            http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd       
            http://www.springframework.org/schema/context  
            http://www.springframework.org/schema/context/spring-context-4.2.xsd">
    
    	
    	<context:component-scan base-package="com.l.controller" />
    
    	
    	<bean
    		class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping" />
    
    	
    	<bean
    		class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter" />
    	<bean
    		class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    		<property name="prefix" value="/WEB-INF/jsp/"></property>
    		<property name="suffix" value=".jsp"></property>
    	</bean>
    </beans>

## （3）创建controller类  com.l.controller.UserController.java ##

package com.l.controller;
    
    import org.springframework.context.ApplicationContext;
    import org.springframework.context.support.ClassPathXmlApplicationContext;
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.servlet.ModelAndView;
    
    import com.l.dao.UserDao;
    import com.l.entity.User;
    
    @Controller
    public class UserController {
    	@RequestMapping("/findUser")
    	public ModelAndView findUser(int id) {
    		ModelAndView mv = new ModelAndView();
    		ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
    		UserDao userDao = (UserDao) context.getBean("userDaoImpl");
    		User user = userDao.findUserById(id);
    		mv.addObject("name", user.getName());
    		mv.addObject("address", user.getAddress());
    		mv.setViewName("findUser");
    		return mv;
    	}
    
    	@RequestMapping("/")
    	public ModelAndView index() {
    		ModelAndView mv = new ModelAndView();
    		mv.setViewName("index");
    		return mv;
    	}
    }

# 4.根据返回的视图名称来新建相关的jsp文件     #

##    配置文件中的路径是/WEB-INF/jsp/    新建jsp文件夹 ##

index.jsp

<%@ 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>Insert title here</title>
    </head>
    <body>
    	<center>
    		<form action="findUser" method="post">
    			请输入id：<input type="text" name="id"> <br />
    			<input type="submit" value="确定" />
    		</form>
    	</center>
    </body>
    </html>

findUser.jsp

<%@ 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>Insert title here</title>
    </head>
    <body>
    	<h1>${requestScope.name }</h1>
    	<h1>${requestScope.address }</h1>
    </body>
    </html>

搭建完成

[20170703134210539]: /images/20220613/ea593376f9714e0c9b03150f2b69e058.png
[ssm_jar]: http://download.csdn.net/detail/sinat_29774479/9887272
[Center]: /images/20220613/fd3e2d5345664bf995203697bc333700.png
[20170703150724220]: /images/20220613/55f1c9cde69045b4ac08d33bdc040fb2.png