目录
写在前面
目录结构
添加依赖
web.xml
jdbc.properties
spring.xml
mybatis.xml
springmvc.xml
pom.xml额外配置
last：写个测试样例看看整合成功没。
User.java
UserDao.java(接口)
UserController.java
UserService.java
UserServiceImpl.java
UserDao.xml
错误类型：
写在前面
结合谢亮辉老师的整合教程和b站教程，数据库用的是smbms数据库。spring是用于管理mybatis和springmvc的，springmvc是spring下面的一个子模块，所以只需要整合spring和mybatis。
这是谢老师的教程地址：
SSM框架整合 - 作业部落 Cmd Markdown 编辑阅读器
目录结构
这是我的目录结构 三个框架分别放三个框架相关配置文件，要注意的是xml文件存放的位置，我们需要把xml导入到web项目中，也就是会在target中显示，下面会配置。
添加依赖
导入依赖，一般下面这些依赖都是兼容大部分环境的，直接复制到你的 pom.xml 中即可
<dependencies>
<!-- SpringMVC -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.0.11.RELEASE</version>
</dependency>
<!-- Spring JDBC -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>5.0.11.RELEASE</version>
</dependency>
<!-- Spring AOP -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>5.0.11.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>5.0.11.RELEASE</version>
</dependency>
<!-- MyBatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.4.5</version>
</dependency>
<!-- MyBatis整合Spring -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.1</version>
</dependency>
<!-- MySQL驱动 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.11</version>
</dependency>
<!-- C3P0 -->
<dependency>
<groupId>c3p0</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.1.2</version>
</dependency>
<!-- JSTL -->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- ServletAPI -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.6</version>
<scope>provided</scope>
</dependency>
</dependencies>web.xml
然后配置 web.xml ，写入之后有的地方可能会有红色波浪线，但是并不影响运行，倒数第二行必须要加，我具体也不让太清楚，好像是会出现多个web-app错误，是由于jar包冲突导致的，但上面的jar包都是必须的不能删掉某个，所以加上那一行/(ㄒoㄒ)/~~。
<!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>
<!-- 启动Spring -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- Spring MVC -->
<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:springmvc.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- 字符编码过滤器 -->
<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>
<!-- 加载静态资源 -->
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.js</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.css</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.jpg</url-pattern>
</servlet-mapping>
<absolute-ordering/>
</web-app>jdbc.properties
🤫需要看清数据库及用户名密码，改成自己的。
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://127.0.0.1:3306/smbms?useUnicode=true&characterEncoding=utf-8&useSSL=false
jdbc.username=root
jdbc.password=root123
c3p0.maxPoolSize=30
c3p0.minPoolSize=10
c3p0.autoCommitOnClose=false
c3p0.checkoutTimeout=10000
c3p0.acquireRetryAttempts=2spring.xml
<?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"
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-4.3.xsd
">
<context:property-placeholder location="classpath:jdbc.properties"/>
<!--获取数据源 使用c3p0连接池技术new c3p0类-->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<!--对象调用属性的setter方法赋值-->
<!--name的属性值固定的，value="${属性文件的属性值}"-->
<property name="driverClass" value="${jdbc.driver}"/>
<property name="jdbcUrl" value="${jdbc.url}"/>
<property name="user" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
<property name="maxPoolSize" value="${c3p0.maxPoolSize}"/>
<property name="minPoolSize" value="${c3p0.minPoolSize}"/>
<property name="autoCommitOnClose" value="${c3p0.autoCommitOnClose}"/>
<property name="checkoutTimeout" value="${c3p0.checkoutTimeout}"/>
<property name="acquireRetryAttempts" value="${c3p0.acquireRetryAttempts}"/>
</bean>
<!-- 配置MyBatis SqlSessionFactory 下面两个文件名字改成自己的 -->
<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.xml"></property>
</bean>
<!-- 扫描自定义的Mapper接口 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.hz.dao"></property>
</bean>
</beans>mybatis.xml
有人会把这个名字叫成其他的，但自己知道就好。
<?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>
<!-- 打印SQL-->
<setting name="logImpl" value="STDOUT_LOGGING" />
</settings>
<typeAliases>
<!-- 指定一个包名，MyBatis会在包名下搜索需要的JavaBean-->
<package name="com.hz.pojo"/>
</typeAliases>
</configuration>springmvc.xml
下面的文件名字也需要改成自己的。
<?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/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/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">
<!-- 启动注解驱动 -->
<mvc:annotation-driven></mvc:annotation-driven>
<!-- 扫描业务代码 -->
<context:component-scan base-package="com.hz"></context:component-scan>
<!-- 配置视图解析器 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
</beans>pom.xml额外配置
这个也就是第一步说的，你要看你的xml文件存放位置，自己修改即可，必须要加上，反正不加会报错提示找不到业务代码。放到<build>里面。
<!-- 这是把相关xml文件加载到web项目中，target中会显示-->
<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.xml</include>
</includes>
</resource>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**/*.xml</include>
</includes>
</resource>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>*.xml</include>
<include>*.properties</include>
</includes>
</resource>
</resources>last：写个测试样例看看整合成功没。
User.java
package com.hz.pojo;
import lombok.Data;
@Data
public class User {
private Integer id;
private String userCode;
private String userName;
}UserDao.java(接口)
package com.hz.dao;
import com.hz.pojo.User;
import java.util.List;
public interface UserDao {
public List<User> findAll();
}UserController.java
package com.hz.controller;
import com.hz.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
@Controller
public class UserController {
@Autowired
private UserService userService;
@RequestMapping("/user")
public ModelAndView findAll() {
ModelAndView modelAndView = new ModelAndView();
modelAndView.setViewName("index");
modelAndView.addObject("list", userService.findAll());
return modelAndView;
}
}UserService.java
package com.hz.service;
import com.hz.pojo.User;
import java.util.List;
public interface UserService {
public List<User> findAll();
}UserServiceImpl.java
package com.hz.service.impl;
import com.hz.dao.UserDao;
import com.hz.pojo.User;
import com.hz.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
@Service
public class UserServiceImpl implements UserService {
@Autowired
private UserDao userdao;
@Override
public List<User> findAll() {
return userdao.findAll();
}
}UserDao.xml
下面文件名字改成自己的。
<?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.hz.dao.UserDao">
<select id="findAll" resultType="User">
select * from smbms_user
</select>
</mapper>错误类型：
这个比较常见，是由于mybatis 负责那一部分出现了问题。也需要看mybatis和spring整合有没有问题。我的这两者整合代码在spring.xml中
