使用Maven+Spring+SpringMVC+MaBtis搭配一个简单SSM框架

摘要

在学习ssm框架搭配的过程中，碰到一些问题，于是想记录下来…

Maven项目的创建

1.勾选Create a simple project,点击next.

使用Maven+Spring+SpringMVC+MaBtis搭配一个简单SSM框架

2.输入Group Id,Artifact Id 以及选择packaging.点击finish.

使用Maven+Spring+SpringMVC+MaBtis搭配一个简单SSM框架

3.单击项目右键，选择properties for ssm之后，单击project facets，将java改成1.8(看自己电脑jdk版本是多少就选择多少),取消勾选dynamic web module，点击 apply.接下来将dynamic web module 的version改为3.1，并且勾选就会出现Futher configuration availiable选项…

使用Maven+Spring+SpringMVC+MaBtis搭配一个简单SSM框架

4.点击Futher configuration availiable选项，勾选Generate web.xml ,点击OK…然后在点击Apply and Close.

使用Maven+Spring+SpringMVC+MaBtis搭配一个简单SSM框架

5.至此，我们的Maven项目就算是真这个的创建好了.

使用Maven+Spring+SpringMVC+MaBtis搭配一个简单SSM框架

SSM框架的搭建

1.在pom.xml中导入jar包依赖

<project xmlns="http://maven.apache.org/POM/4.0.0"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<groupId>com.dhcc</groupId>
	<artifactId>ssm</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>war</packaging>

	<!-- 指定maven编译方式为jdk1.8版本 -->
	<profiles>
		<profile>
			<id>jdk-1.8</id>
			<activation>
				<activeByDefault>true</activeByDefault>
				<jdk>1.8</jdk>
			</activation>
			<properties>
				<maven.compiler.source>1.8</maven.compiler.source>
				<maven.compiler.target>1.8</maven.compiler.target>
				<maven.compiler.compilerVersion>1.8</maven.compiler.compilerVersion>
			</properties>
		</profile>
	</profiles>
	
	<dependencies>
		<!-- Servlet API -->
		<dependency>
			<groupId>javax.servlet</groupId>
			<artifactId>servlet-api</artifactId>
			<version>3.0-alpha-1</version>
			<scope>provided</scope>
		</dependency>

		<!-- Spring Web -->
		<!-- https://mvnrepository.com/artifact/org.springframework/spring-web -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-web</artifactId>
			<version>5.0.3.RELEASE</version>
		</dependency>


		<!-- Spring SpringMVC -->
		<!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-webmvc</artifactId>
			<version>5.0.3.RELEASE</version>
		</dependency>

		<!-- Spring JDBC -->
		<!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-jdbc</artifactId>
			<version>5.0.3.RELEASE</version>
		</dependency>

		<!-- Spring Aspects -->
		<!-- https://mvnrepository.com/artifact/org.springframework/spring-aspects -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-aspects</artifactId>
			<version>5.0.3.RELEASE</version>
		</dependency>

		<!-- MyBatis -->
		<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis -->
		<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis</artifactId>
			<version>3.4.5</version>
		</dependency>

		<!-- MyBatis Spring -->
		<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring -->
		<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis-spring</artifactId>
			<version>1.3.1</version>
		</dependency>

		<!-- C3P0 -->
		<!-- https://mvnrepository.com/artifact/c3p0/c3p0 -->
		<dependency>
			<groupId>c3p0</groupId>
			<artifactId>c3p0</artifactId>
			<version>0.9.1.2</version>
		</dependency>

		<!-- MySQL驱动包 -->
		<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<version>8.0.12</version>
		</dependency>

		<!-- JSTL -->
		<!-- https://mvnrepository.com/artifact/jstl/jstl -->
		<dependency>
			<groupId>jstl</groupId>
			<artifactId>jstl</artifactId>
			<version>1.2</version>
		</dependency>

		<!-- https://mvnrepository.com/artifact/com.googlecode.json-simple/json-simple -->
		<dependency>
			<groupId>com.googlecode.json-simple</groupId>
			<artifactId>json-simple</artifactId>
			<version>1.1</version>
		</dependency>

		<!-- https://mvnrepository.com/artifact/commons-fileupload/commons-fileupload -->
		<dependency>
			<groupId>commons-fileupload</groupId>
			<artifactId>commons-fileupload</artifactId>
			<version>1.3.3</version>
		</dependency>

		<!-- https://mvnrepository.com/artifact/com.google.code.gson/gson -->
		<dependency>
			<groupId>com.google.code.gson</groupId>
			<artifactId>gson</artifactId>
			<version>2.8.2</version>
		</dependency>

		<!-- https://mvnrepository.com/artifact/org.apache.commons/commons-lang3 -->
		<dependency>
			<groupId>org.apache.commons</groupId>
			<artifactId>commons-lang3</artifactId>
			<version>3.7</version>
		</dependency>
		
	</dependencies>
	
</project>

2.在Web.xml中启动Spring容器以及加载SpringMVC拦截器，拦截所有请求

<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="3.1"
	xmlns="http://xmlns.jcp.org/xml/ns/javaee"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd">

	<!-- 1.启动Spring容器 -->
	<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>

	<!-- 2.加载springmvc前端控制器，拦截所有请求 -->
	<servlet>
		<servlet-name>springDispatcherServlet</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<init-param>
			<param-name>contextConfigLocation</param-name>
			<param-value>classpath:springmvc.xml</param-value>
		</init-param>
		<load-on-startup>1</load-on-startup>
	</servlet>

	<servlet-mapping>
		<servlet-name>springDispatcherServlet</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping

</web-app>

3.加载springMVC配置文件，SpringMVC只负责前端页面跳转的逻辑处理.

其余所有和业务逻辑有关的配置都配置在Spring配置文件中.

<?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:mvc="http://www.springframework.org/schema/mvc"
	xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd
		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd">

	<!-- 1.启动注解扫描功能 -->
	<context:component-scan base-package="com.dhcc"
		use-default-filters="false">
		<!-- 只扫描控制器 -->
		<context:include-filter type="annotation"
			expression="org.springframework.stereotype.Controller" />
	</context:component-scan>

	<!-- 2.配置视图解析器 -->
	<bean
		class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix" value="/WEB-INF/views/"></property>
		<property name="suffix" value=".jsp"></property>
	</bean>
	
	<!-- 两个标准配置 -->
	
	<!-- 3.处理静态资源 -->
	<mvc:default-servlet-handler/>
	
	<!-- 4.支持springmvc高级功能...  JSR303校验... -->
	<mvc:annotation-driven></mvc:annotation-driven>

</beans>

4.加载Spring配置文件，这里处理配置和业务逻辑有关的，例如数据源，事务管理等等…注意Spring在配置注解扫描器的时候时候默认的过滤器，即use-default-filter = true，否则就不能扫描到@Service等注解…

<?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"
	xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:mybatis-spring="http://mybatis.org/schema/mybatis-spring"
	xsi:schemaLocation="http://mybatis.org/schema/mybatis-spring http://mybatis.org/schema/mybatis-spring-1.2.xsd
		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-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">

	<!-- 1.配置注解扫描器 -->
	<!-- !!!=====遇到的问题,Spring配置文件中的注解扫描器使用默认的过滤器,即use-default-filter=true====!!! -->
	<context:component-scan base-package="com.dhcc">
		<context:exclude-filter type="annotation"
			expression="org.springframework.stereotype.Controller" />
	</context:component-scan>

	<!-- Spring的配置文件,主要配置和业务逻辑有关的 -->
	<!-- ====================数据源、事务管理、×××===================== -->

	<!-- 加载配置文件 -->
	<context:property-placeholder
		location="classpath:dbconfig.properties" />

	<!-- 2.配置数据源 -->
	<bean id="dataSource"
		class="com.mchange.v2.c3p0.ComboPooledDataSource">
		<property name="jdbcUrl" value="${jdbc.jdbcUrl}"></property>
		<property name="driverClass" value="${jdbc.driverClass}"></property>
		<property name="user" value="${jdbc.user}"></property>
		<property name="password" value="${jdbc.password}"></property>
	</bean>

	<!-- 3.配置事务管理 -->
	<bean id="transactionManager"
		class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<property name="dataSource" ref="dataSource"></property>
	</bean>

	<!-- 4.开启基于注解的事务 -->
	<tx:annotation-driven
		transaction-manager="transactionManager" />

	<!-- 5.配置SqlSessionFactory -->
	<bean id="sqlSessionFactory"
		class="org.mybatis.spring.SqlSessionFactoryBean">
		<property name="dataSource" ref="dataSource"></property>

		<!-- configLocation指定全局配置位置 -->
		<property name="configLocation"
			value="classpath:mybatis-config.xml"></property>

		<!-- mapperLocations指定映射文件的位置 -->
		<property name="mapperLocations"
			value="classpath:mapper/user/UserInfoDao.xml"></property>
	</bean>

	<!-- 6.扫描所有的mapper接口，让这些mapper能够自动注入 -->
	<!-- <mybatis-spring:scan base-package="com.dhcc.dao"/> -->

	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
		<property name="basePackage" value="com.dhcc.dao"></property>
	</bean>
</beans>

5.编写映射文件以及接口，映射文件中的namespace对应接口的全类名，select中的id对应接口的方法名，这样映射文件就会和接口进行动态绑定，将所有的sql都放在映射文件中，在接口的作用在于规范sql的入参以及返回类型.

<?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.dhcc.dao.UserInfoDao">

	<!-- public UserInfo getUser(@Param("userName") String userName, @Param("password") 
		String password); -->
	<select id="getUser" resultType="com.dhcc.pojo.UserInfo">
		select * from user_info
		where userName = #{userName} and password = #{password}
	</select>

</mapper>

package com.dhcc.dao;

import org.apache.ibatis.annotations.Param;

import com.dhcc.pojo.UserInfo;

/**
 * @author: 241江斌
 * @since: 2020年7月9日 下午6:48:24
 * @version: 1.0.0
 */

public interface UserInfoDao {

	public UserInfo getUser(@Param("userName") String userName, @Param("password") String password);

}

6.编写Service层和Controller层，

package com.dhcc.service;

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

import com.dhcc.dao.UserInfoDao;

/** 
* @author:  241江斌
* @since: 2020年7月9日 下午7:20:38 
* @version: 1.0.0 
*/

import com.dhcc.pojo.UserInfo;

@Service("userInfoService")
public class UserInfoServiceImp implements UserInfoService {

	@Autowired
	private UserInfoDao userInfoDao;

	@Override
	public UserInfo login(String userName, String password) {
		return userInfoDao.getUser(userName, password);
	}

}

package com.dhcc.controller;

import org.omg.CORBA.PRIVATE_MEMBER;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

import com.dhcc.pojo.UserInfo;
import com.dhcc.service.UserInfoService;

/**
 * @author: 241江斌
 * @since: 2020年7月9日 下午7:26:26
 * @version: 1.0.0
 */
@RequestMapping("/userinfo")
@Controller
public class UserInfoController {

	@Autowired
	private UserInfoService userInfoService;

	@RequestMapping("/login")
	public String login(UserInfo ui) {
		UserInfo tempUi = userInfoService.login(ui.getUserName(), ui.getPassword());
		if (tempUi != null && tempUi.getUserName() != null) {
			return "index";
		} else {
			return "redirect:/login.jsp";
		}
	}

}

7.接下来写个页面进行测试，看系统是否能跑通…

<form action="userinfo/login" method="post">
		<table>
			<tr>
				<td>用户名:</td>
				<td><input type="text" name="userName"></td>
			</tr>
			<tr>
				<td>密码:</td>
				<td><input type="text" name="password" /></td>
			</tr>
			<tr>
				<td><input type="submit" value="登录" /></td>
				<td></td>
			</tr>
		</table>
	</form>

8.至此，可以看见测试成功了，到这里项目也就结束了.

使用Maven+Spring+SpringMVC+MaBtis搭配一个简单SSM框架

9.项目很简单，全部文件也就这么多…

使用Maven+Spring+SpringMVC+MaBtis搭配一个简单SSM框架

使用Maven+Spring+SpringMVC+MaBtis搭配一个简单SSM框架

摘要

Maven项目的创建

SSM框架的搭建

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