SSM框架——Spring+SpringMVC+Mybatis的搭建教程 一：概述 SSM框架在项目开发中经常使用到，相比于SSH框架，它在仅几年的开发中运用的更加广泛。 Spring作为一个轻量级
SSM框架——Spring+SpringMVC+Mybatis的搭建教程
一：概述
SSM框架在项目开发中经常使用到，相比于SSH框架，它在仅几年的开发中运用的更加广泛。
- Spring作为一个轻量级的框架，有很多的拓展功能，最主要的我们一般项目使用的就是IOC和AOP。
- SpringMVC是Spring实现的一个Web层，相当于Struts的框架，但是比Struts更加灵活和强大！
- Mybatis是 一个持久层的框架，在使用上相比Hibernate更加灵活，可以控制sql的编写，使用 XML或注解进行相关的配置！
根据上面的描述，学习SSM框架就非常的重要了！
二：搭建一个SSM的过程
- 使用Maven管理项目
使用Maven在Eclipse中创建一个webapp的项目 ，具体的创建过程不做演示，如有不会创建的[创建项目]
也可以使用Maven命令进行创建，在Dos窗口进入指定的目录，执行下面命令：
mvn archetype:create -DgroupId=org.ssm.dufy -DartifactId=ssm-demo -DarchetypeArtifactId=maven-archetype-webapp -DinteractiveMode=false
使用命令要注意，系统安装了Maven，并配置好了环境变量！[Maven的安装和环境变量配置]
-
导入项目（命名创建），添加依赖
导入项目是IDE中，或者直接在IDE创建，一般默认有【src/main/java】，手动创建【src/test/resources】、【src/test/java】文件夹。如下项目结构：
然后直接配置 pom.xml文件中的包依赖！
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0modelVersion>
<groupId>org.dufygroupId>
<artifactId>ssmartifactId>
<packaging>warpackaging>
<version>0.0.1-SNAPSHOTversion>
<name>ssmDemoname>
<url>http://maven.apache.orgurl>
<properties>
<spring.version>4.0.5.RELEASEspring.version>
<mybatis.version>3.2.1mybatis.version>
<slf4j.version>1.6.6slf4j.version>
<log4j.version>1.2.12log4j.version>
<mysql.version>5.1.35mysql.version>
properties>
<dependencies>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-coreartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-webmvcartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-contextartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-context-supportartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-aopartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-aspectsartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-txartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-jdbcartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-webartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-testartifactId>
<version>${spring.version}version>
<scope>testscope>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-webmvcartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-webartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>mysqlgroupId>
<artifactId>mysql-connector-javaartifactId>
<version>${mysql.version}version>
dependency>
<dependency>
<groupId>com.alibabagroupId>
<artifactId>druidartifactId>
<version>0.2.23version>
dependency>
<dependency>
<groupId>com.alibabagroupId>
<artifactId>fastjsonartifactId>
<version>1.1.41version>
dependency>
<dependency>
<groupId>log4jgroupId>
<artifactId>log4jartifactId>
<version>${log4j.version}version>
dependency>
<dependency>
<groupId>org.slf4jgroupId>
<artifactId>slf4j-apiartifactId>
<version>${slf4j.version}version>
dependency>
<dependency>
<groupId>ch.qos.logbackgroupId>
<artifactId>logback-classicartifactId>
<version>1.1.2version>
dependency>
<dependency>
<groupId>ch.qos.logbackgroupId>
<artifactId>logback-coreartifactId>
<version>1.1.2version>
dependency>
<dependency>
<groupId>org.logback-extensionsgroupId>
<artifactId>logback-ext-springartifactId>
<version>0.1.1version>
dependency>
<dependency>
<groupId>org.mybatisgroupId>
<artifactId>mybatisartifactId>
<version>${mybatis.version}version>
dependency>
<dependency>
<groupId>org.mybatisgroupId>
<artifactId>mybatis-springartifactId>
<version>1.2.0version>
dependency>
<dependency>
<groupId>javax.servletgroupId>
<artifactId>javax.servlet-apiartifactId>
<version>3.0.1version>
dependency>
<dependency>
<groupId>javax.servlet.jspgroupId>
<artifactId>javax.servlet.jsp-apiartifactId>
<version>2.3.2-b01version>
dependency>
<dependency>
<groupId>javax.servletgroupId>
<artifactId>jstlartifactId>
<version>1.2version>
dependency>
<dependency>
<groupId>junitgroupId>
<artifactId>junitartifactId>
<version>3.8.1version>
<scope>testscope>
dependency>
dependencies>
<build>
<finalName>ssmDemofinalName>
build>
project>
- 创建数据库和表，生成代码
创建数据库我参考别人的博客数据库设计，这块没有自己去书写，直接添上代码
DROP TABLE IF EXISTS `user_t`;
CREATE TABLE `user_t` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`user_name` varchar(40) NOT NULL,
`password` varchar(255) NOT NULL,
`age` int(4) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8;
/*Data for the table `user_t` */
insert into `user_t`(`id`,`user_name`,`password`,`age`) values (1,'测试','sfasgfaf',24)生成代码请查看：
[Mybatis自动生成代码]
生成的代码导入图片解释：
- Spring 和 mybatis整合，连接数据库,进行Junit测试
将生成的代码拷贝到项目中，然后进行Spring和Mybatis的整合，添加配置文件！
主要有
applicationContent.xml ：Spring的相关配置！
Spring-mhbatis.xml ： Spring和Mybatis集成配置！
jdbc.properties : 数据库信息配置！
logback.xml : 日志输出信息配置！（不做介绍，详细信息查看源码）
主要介绍applicationContext.xml、Spring-mhbatis.xml、jdbc.properties。主要内容如下：
jdbc.properties
jdbc_driverClassName =com.mysql.jdbc.Driver
jdbc_url=jdbc:mysql://localhost:3306/ssm?useUnicode=true&characterEncoding=utf8
jdbc_username=root
jdbc_password=rootapplicationContext.xml
<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-3.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
">
<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations" value="classpath:jdbc.properties"/>
bean>
<context:component-scan base-package="org.ssm.dufy">
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
context:component-scan>
<import resource="classpath:spring-mybatis.xml" />
beans>spring-mybatis.xml
<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:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context"
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/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd">
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">
<property name="driverClassName" value="${jdbc_driverClassName}"/>
<property name="url" value="${jdbc_url}"/>
<property name="username" value="${jdbc_username}"/>
<property name="password" value="${jdbc_password}"/>
<property name="initialSize" value="10"/>
<property name="minIdle" value="10"/>
<property name="maxActive" value="50"/>
<property name="maxWait" value="60000"/>
<property name="timeBetweenEvictionRunsMillis" value="60000" />
<property name="minEvictableIdleTimeMillis" value="300000" />
<property name="validationQuery" value="SELECT 'x'" />
<property name="testWhileIdle" value="true" />
<property name="testOnBorrow" value="false" />
<property name="testOnReturn" value="false" />
<property name="poolPreparedStatements" value="false" />
<property name="maxPoolPreparedStatementPerConnectionSize" value="20" />
<property name="filters" value="wall,stat" />
bean>
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="mapperLocations" value="classpath:org/ssm/dufy/mapper/*.xml">property>
bean>
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="org.ssm.dufy.dao" />
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory">property>
bean>
<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
bean>
<tx:annotation-driven transaction-manager="transactionManager" />
beans>
测试代码，两种方式：
测试1：
package org.ssm.dufy.service;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.ssm.dufy.entity.User;
/**
* 配置spring和junit整合，junit启动时加载springIOC容器 spring-test,junit
*/
@RunWith(SpringJUnit4ClassRunner.class)
// 告诉junit spring配置文件
@ContextConfiguration({ "classpath:applicationContext.xml"})
public class IUserServiceTest {
@Autowired
public IUserService userService;
@Test
public void getUserByIdTest(){
User user = userService.getUserById(1);
System.out.println(user.getUserName());
}
}
测试2：
package org.ssm.dufy.service;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.ssm.dufy.entity.User;
public class IUserServiceTest2 {
public static void main(String[] args) {
ApplicationContext application = new ClassPathXmlApplicationContext("applicationContext.xml");
IUserService uService = (IUserService) application.getBean("userService");
User user = uService.getUserById(1);
System.out.println(user.getUserName());
}
}
5：整合SpringMVC，添加配置，创建jsp
SpringMVC需要的依赖在pom.xml中已经加上了，现在需在Web项目中的web.xml中添加启动SpringMVC启动配置和Spring整合SpringMVC的配置了。
新增如下两个文件：
spring-mvc.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:p="http://www.springframework.org/schema/p"
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/beans
http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.2.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">
<context:component-scan base-package="org.ssm.dufy.web" use-default-filters="false">
<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
context:component-scan>
<mvc:annotation-driven />
<bean id="contentNegotiationManager" class="org.springframework.web.accept.ContentNegotiationManagerFactoryBean">
<property name="favorPathExtension" value="true"/>
<property name="favorParameter" value="true"/>
<property name="parameterName" value="format"/>
<property name="ignoreAcceptHeader" value="false"/>
<property name="mediaTypes">
<value>
json=application/json
xml=application/xml
html=text/html
value>
property>
<property name="defaultContentType" value="text/html"/>
bean>
<mvc:default-servlet-handler />
<mvc:resources mapping="/static/**" location="/WEB-INF/static/"/>
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"
p:prefix="/WEB-INF/jsp/" p:suffix=".jsp"/>
beans>web.xml
<web-app>
<display-name>SSM-DEMOdisplay-name>
<context-param>
<param-name>contextConfigLocationparam-name>
<param-value>classpath:applicationContext.xmlparam-value>
context-param>
<filter>
<filter-name>SpringEncodingFilterfilter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>
<init-param>
<param-name>encodingparam-name>
<param-value>UTF-8param-value>
init-param>
<init-param>
<param-name>forceEncodingparam-name>
<param-value>trueparam-value>
init-param>
filter>
<filter-mapping>
<filter-name>SpringEncodingFilterfilter-name>
<url-pattern>/*url-pattern>
filter-mapping>
<context-param>
<param-name>logbackConfigLocationparam-name>
<param-value>classpath:logback.xmlparam-value>
context-param>
<listener>
<listener-class>ch.qos.logback.ext.spring.web.LogbackConfigListenerlistener-class>
listener>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
listener>
<servlet>
<servlet-name>dispatcherServletservlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
<init-param>
<param-name>contextConfigLocationparam-name>
<param-value>classpath:spring-mvc.xmlparam-value>
init-param>
<load-on-startup>1load-on-startup>
servlet>
<servlet-mapping>
<servlet-name>dispatcherServletservlet-name>
<url-pattern>/url-pattern>
servlet-mapping>
<welcome-file-list>
<welcome-file>index.jspwelcome-file>
welcome-file-list>
web-app>
新增index.jsp文件
<%@ page contentType="text/html; charset=utf-8"%>
<html>
<body>
<h2>Hello World!h2>
body>
html>
6.启动web服务，测试
将上面的项目添加到Tomcat中，启动，控制台没有报错，并在地址栏访问，http://localhost:8080/ssm。页面显示 Hello World! 项目配置ok！
7：编写Controller，和对应得业务界面
新增UserController ，通过参数传递uid获取用户，若用户存在，跳转到showName.jsp ，若用户不存在，则跳转到error.jsp,并返回提示信息！
package org.ssm.dufy.web;
import javax.servlet.http.HttpServletRequest;
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.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;
import org.ssm.dufy.entity.User;
import org.ssm.dufy.service.IUserService;
@Controller
public class UserController {
@Autowired
private IUserService userService;
@RequestMapping(value="/showname",method=RequestMethod.GET)
public String showUserName(@RequestParam("uid") int uid,HttpServletRequest request,Model model){
System.out.println("showname");
User user = userService.getUserById(uid);
if(user != null){
request.setAttribute("name", user.getUserName());
model.addAttribute("mame", user.getUserName());
return "showName";
}
request.setAttribute("error", "没有找到该用户！");
return "error";
}
}
Jsp内容如下：
showName.jsp
<%@ page contentType="text/html; charset=utf-8"%>
<html>
<head>
<title>show nametitle>
head>
<body>
<h1>Welcomeh1> ${name }<h1>访问此页面h1>
body>
html>
error.jsp
<%@ page contentType="text/html; charset=utf-8"%>
<html>
<head>
<title>error pagetitle>
head>
<body>
<h2> ${error } h2>
body>
html>
三：遇到的问题
1:找不到UserService，报错
可能是包扫描路径的问题，检查一下Service是否在扫描的范围内
2：jsp接收不到request.setAttribute("","");内容
查资料说是因为 JSP的版本问题，可以在Jsp 上面添加 <%@ page isELIgnored="false" %>
或者修改web.xml ,添加version版本！
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
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" metadata-complete="true">四：心得总结
或许这些都是站在别人的基础的搭建的，但是看一篇SSM的搭建文章可能很快，看完觉得自己懂了，但是我建议一定要自己去搭建一次，看一遍，和动手做一遍完全是两个概念！
五：参考文章
SSM框架——详细整合教程（Spring+SpringMVC+MyBatis）
Mybatis3.x与Spring4.x整合
附：
项目源代码：
https://github.com/dufyun/kuyu/tree/master/ssm
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