网上经常有一些SSM的框架，根本都运行不起来，还要发出来骗人，本人非常抵制这些行为。为了让初学者继续学习下去，本人花费了一点小时间，帮大家建立起学习JAVA的自信。好了废话不多说，交您一步一步搭建SSM框架（Spring+SpringMvc+MyBatis）
第一步：打开IDEA软件 选择新建项目按图操作
第二步：点击next
第三步：点击NEXT
这块，需要您安装MAVEN ，我本机已经安装了，如果您安装了请直接next直到完成，项目建立完毕,否则您直接去网上找教程安装配置MAVEN 非常简单的，这里就不在教大家如何安装。
第四步：在SRC/main 下建立java和resources 两个文件夹
第五步：设置这两个文件夹，可以点击文件下来菜单里的和快捷里的快捷按钮都可以
打开对话框：
上面操作完成点击apply和ok 此时工作区域的文件夹为如下所示
项目名称不一致没有关系。其它一致即可。
第六步：我们打开pom.xml,建立如下依赖
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>5.2.9.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>5.2.9.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>5.2.9.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-expression</artifactId>
<version>5.2.9.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>5.2.9.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>5.2.9.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>5.2.9.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>5.2.9.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>5.2.9.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>5.2.9.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jcl</artifactId>
<version>5.2.9.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-framework-bom</artifactId>
<version>5.2.9.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-messaging</artifactId>
<version>5.2.9.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>5.2.9.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.2.9.RELEASE</version>
</dependency>
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.2.1</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.21</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>2.0.5</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.5.5</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.5</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.12</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
</dependencies>上面依赖大家都能看懂，无非就是Spring 的依赖和SpringMVC的依赖 mysql数据库连接 阿里的连接池还有日志log4j 以及commons-log等 保存后，maven将自动下载这些依赖
我们在resources文件夹下建立以下文件
（1）mapper文件夹/MyUserMapper.xml
<?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.dzeco.dao.MyUserDao">
<select id="getById" parameterType="LONG" resultType="com.dzeco.pojo.myuser">
SELECT * FROM myuser WHERE id=#{id}
</select>
</mapper>（2）数据库配置
jdbc.user=root
jdbc.password=123456
jdbc.driverClass=com.mysql.cj.jdbc.Driver
jdbc.jdbcUrl=jdbc:mysql://localhost:3306/test?useSSL=false&serverTimezone=Asia/Shanghai（3）log4j配置
#//注意这里不要用INFO，DEBUG等 改个名字
log4j.rootLogger=infoA,errorA,stdout,DEBUGA
#过滤掉spring框架下的额外日志
log4j.category.org.springframework = WARN
#输出到控制台
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.Threshold = debug
log4j.appender.stdout.layout.ConversionPattern=%d %-5p %c{1}:%L - %m%n
#输出error到指定文件
log4j.logger.errorA=error
log4j.appender.errorA=org.apache.log4j.DailyRollingFileAppender
log4j.appender.errorA.layout=org.apache.log4j.PatternLayout
log4j.appender.errorA.layout.ConversionPattern=%d{yyyy-MM-dd-HH-mm} [%t] [%c] [%p] - %m%n
log4j.appender.errorA.datePattern=yyyy-MM-dd'.log'
log4j.appender.errorA.Threshold = error
log4j.appender.errorA.append=true
log4j.appender.error.File=d:/log/error.log
#输出DEBUG信息到指定文件
log4j.logger.DEBUGA=DEBUG
log4j.appender.DEBUGA=org.apache.log4j.DailyRollingFileAppender
log4j.appender.DEBUGA.layout=org.apache.log4j.PatternLayout
log4j.appender.DEBUGA.layout.ConversionPattern=%d{yyyy-MM-dd-HH-mm} [%t] [%c] [%p] - %m%n
log4j.appender.DEBUGA.datePattern=yyyy-MM-dd'.log'
log4j.appender.DEBUGA.Threshold = DEBUG
log4j.appender.DEBUGA.append=true
log4j.appender.DEBUGA.File=d:/log/debug_log.log
#打印sql语句
log4j.logger.com.ibatis=DEBUG
log4j.logger.java.sql.ResultSet=INFO
log4j.logger.com.ibatis.common.jdbc.SimpleDataSource=DEBUG
log4j.logger.com.ibatis.common.jdbc.ScriptRunner=DEBUG
log4j.logger.com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate=DEBUG
log4j.logger.java.sql.Connection=DEBUG
log4j.logger.java.sql.Statement=DEBUG
log4j.logger.java.sql.PreparedStatement=DEBUG（4）mybatis配置
<?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>
<settings>
<setting name="jdbcTypeForNull" value="NULL"/>
</settings>
</configuration>（5）spring配置
<?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" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:mybatis-spring="http://mybatis.org/schema/mybatis-spring"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc https://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/aop https://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd http://mybatis.org/schema/mybatis-spring http://mybatis.org/schema/mybatis-spring.xsd">
<!--载入数据库配置文件-->
<context:property-placeholder location="classpath:db.properties"/>
<!--配置数据库连接池-->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
<property name="url" value="${jdbc.jdbcUrl}"></property>
<property name="driverClassName" value="${jdbc.driverClass}"></property>
<property name="username" value="${jdbc.user}"></property>
<property name="password" value="${jdbc.password}"></property>
<property name="initialSize" value="5"></property>
<property name="maxActive" value="20"></property>
<property name="maxWait" value="60000"></property>
<property name="minIdle" value="10"></property>
<property name="timeBetweenEvictionRunsMillis" value="60000"></property>
<property name="minEvictableIdleTimeMillis" value="300000"></property>
<property name="testOnBorrow" value="false"></property>
<property name="testOnReturn" value="false"></property>
<property name="testWhileIdle" value="true"></property>
<property name="validationQuery" value="SELECT 1"></property>
<property name="poolPreparedStatements" value="true"></property>
<property name="maxOpenPreparedStatements" value="20"></property>
</bean>
<!--配置spring 扫描器-->
<context:component-scan base-package="com.dzeco" use-default-filters="false">
<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
<context:include-filter type="annotation" expression="org.springframework.stereotype.Service"/>
</context:component-scan>
<!--配置视图解析器-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/templates/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
<!--防止中文乱码-->
<mvc:annotation-driven>
<mvc:message-converters register-defaults="true">
<bean class="org.springframework.http.converter.StringHttpMessageConverter">
<property name="supportedMediaTypes" value="text/html;charset=UTF-8"/>
</bean>
</mvc:message-converters>
</mvc:annotation-driven>
<!--不处理静态文件-->
<mvc:default-servlet-handler/>
<!--配置事务-->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"></property>
</bean>
<!--整合mybatis-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"></property>
<property name="mapperLocations" value="classpath:/mapper/*.xml"></property>
<property name="configLocation" value="classpath:mybatis-config.xml"></property>
</bean>
<!--mapper 扫描-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.dzeco.dao"></property>
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
</bean>
</beans>
我们在webapp\web-inf下建立文件夹templates
web.xml的配置如下，这里面配置的就是dispatcherservlet 和防止乱码
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
<display-name>Archetype Created Web Application</display-name>
<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>
<servlet>
<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:spring-servlet.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>我们在src/main/java 文件夹下建立com.dzeco这个包，我们在这个包中建立controller、dao、pojo，service，在service下建立iml文件夹此时如下所示
我们在controller里建立MyUserController.java
package com.dzeco.controller;
import com.dzeco.pojo.myuser;
import com.dzeco.service.MyUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ResponseBody;
/**
* @autohr Alex
* @create 2020-10-13 10:48
*/
@Controller
public class MyUserController {
@Autowired
private MyUserService myUserService;
@ResponseBody
@GetMapping("/index")
public String index(){
myuser user=myUserService.getById((long) 1001);
return user.toString();
}
}我们在dao文件夹下建立接口MyUserDao.java
package com.dzeco.dao;
import com.dzeco.pojo.myuser;
/**
* @autohr Alex
* @create 2020-10-13 10:39
*/
public interface MyUserDao {
public myuser getById(Long id);
}我们在pojo文件夹下建立myuser.java
package com.dzeco.pojo;
import java.io.Serializable;
import java.util.Date;
/**
* @autohr Alex
* @create 2020-09-30 17:11
*/
public class myuser implements Serializable{
private static final long serialVersionUID = 3210349269639326494L;
private Integer id;
private String user;
private int roadid;
private String gender;
private String hoppy;
private Date addtime;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getUser() {
return user;
}
public void setUser(String user) {
this.user = user;
}
public int getRoadid() {
return roadid;
}
public void setRoadid(int roadid) {
this.roadid = roadid;
}
public String getGender() {
return gender;
}
public void setGender(String gender) {
this.gender = gender;
}
public String getHoppy() {
return hoppy;
}
public void setHoppy(String hoppy) {
this.hoppy = hoppy;
}
public Date getAddtime() {
return addtime;
}
public void setAddtime(Date addtime) {
this.addtime = addtime;
}
@Override
public String toString() {
return "myuser{" +
"id=" + id +
", user='" + user + '\'' +
", roadid=" + roadid +
", gender='" + gender + '\'' +
", hoppy='" + hoppy + '\'' +
", addtime=" + addtime +
'}';
}
}
我们在service下建立接口MyUserService.java
package com.dzeco.service;
import com.dzeco.pojo.myuser;
/**
* @autohr Alex
* @create 2020-10-13 10:42
*/
public interface MyUserService {
public myuser getById(Long id);
}
我们在iml文件夹下建立MyUserServiceIml.java 实现上面接口
package com.dzeco.service.iml;
import com.dzeco.dao.MyUserDao;
import com.dzeco.pojo.myuser;
import com.dzeco.service.MyUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
/**
* @autohr Alex
* @create 2020-10-13 10:42
*/
@Service
public class MyUserServiceIml implements MyUserService {
@Autowired
private MyUserDao myUserDao;
@Override
public myuser getById(Long id) {
return myUserDao.getById(id);
}
}最后，我们配置下运行环境点击
弹出选择左面＋号，按图操作
配置运行端口
选择deploment
更改成以下内容
运行程序
此时 SSM框架已经搭建完毕,最终结果
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