一.搭建基础框架(spring+springmvc整合)
二.将mybatis融合到基础框架
1.引入jar包 mybatis-spring-version.jar(mybatis与spring的粘合剂)
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>2.1.2</version>
</dependency>
2.将mybatis.xml文件引入springmvc的application.xml中。 根据datasource和mybatis-configure.xml创建SqlSessionFactory
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"></property>
<property name="configLocation" value="classpath:config/mybatis/mybatis-config.xml"></property>
</bean>
- 将mapper文件引入application.xml中。 根据sqlSessionFactory及扫描到的所有mapper文件创建mapper代理对象并存放到spring IOC容器中。
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.zzxtit.ssm.**.mapper"></property>
<property name="sqlSessionFactory" ref="sqlSessionFactory"></property>
</bean>
4.编写代码
pom.xml
<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>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.0.RELEASE</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
<groupId>com.dilidili</groupId>
<artifactId>ssm</artifactId>
<version>0.0.1-SNAPSHOT</version>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-aop</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.1.21</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>2.1.2</version>
</dependency>
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper</artifactId>
<version>5.1.11</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.4</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.62</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
web.xml
<?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" 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">
<!--
配置前端控制器:
作用:拦截所有的WEB请求
/* 拦截所有的请求,一般用于开发前台网站
/ 一般用于开发普通工程
*.action *.do 一般用于开发后台管理系统
-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:config/applicationContext-mybatis.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!--
spring ioc容器启动并根据上下文初始化
-->
<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:config/applicationContext-webmvc.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>DispatcherServlet</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>
<filter-name>HiddenHttpMethodFilter</filter-name>
<filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
</filter>
<!--
可以在filter-mapping 通过servlet-name 标签配置当前过滤器过滤所有 当前配置的servletName接受的请求
-->
<filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<servlet-name>DispatcherServlet</servlet-name>
</filter-mapping>
<filter-mapping>
<filter-name>HiddenHttpMethodFilter</filter-name>
<servlet-name>DispatcherServlet</servlet-name>
<!--
所有被DispatcherServlet此servlet接收的请求都要被HiddenHttpMethodFilter所过滤
-->
</filter-mapping>
<error-page>
<error-code>404</error-code>
<location>/view/error.jsp</location>
</error-page>
</web-app>
applicationContext-mybatis.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:util="http://www.springframework.org/schema/util"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/beans
https://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/aop
https://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx
https://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/util
http://www.springframework.org/schema/util/spring-util.xsd
">
<!--
筛选所控制的包
-->
<context:component-scan base-package="com.dilidili.mapper"></context:component-scan>
<context:component-scan base-package="com.dilidili.service"></context:component-scan>
<!--
不可使用DB.properties
-->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
<property name="driverClassName" value="com.mysql.cj.jdbc.Driver"></property>
<property name="url" value="jdbc:mysql://localhost:3306/demo?useUnicode=true&characterEncoding=UTF-8&useSSL=false&serverTimezone=Asia/Shanghai&zeroDateTimeBehavior=CONVERT_TO_NULL"></property>
<property name="username" value="root"></property>
<property name="password" value="2505"></property>
</bean>
<!-- 2.Mybatis 的 SqlSession的工厂:SqlSessionFactoryBean dataSource引用数据源 Mybatis 定义数据源,同意加载配置 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"></property>
<property name="configLocation" value="classpath:config/mybatis.xml"></property>
</bean>
<!-- 3. Mybatis自动扫描加载Sql映射文件/接口:MapperScannerConfigurer sqlSessionFactory
basePackage:指定sql映射文件/接口所在的包(自动扫描) -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.dilidili.mapper"></property>
<property name="sqlSessionFactory" ref="sqlSessionFactory"></property>
</bean>
<!--
实例化事务管理器
-->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"></property>
</bean>
<!--
编程式事务 事务管理模板
-->
<bean id="transactionTemplate" class="org.springframework.transaction.support.TransactionTemplate">
<property name="transactionManager" ref="transactionManager"></property>
</bean>
</beans>
applicationContext-webmvc.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:util="http://www.springframework.org/schema/util"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/beans
https://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/aop
https://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx
https://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/mvc
https://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/util
http://www.springframework.org/schema/util/spring-util.xsd
">
<context:component-scan base-package="com.dilidili.action"></context:component-scan>
<!--
配置视图解析器
-->
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/views/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<!-- 上传文件的最大值, 单位为:字节 50*1024*1024
<property name="maxUploadSize" value="52428800"></property>
-->
<property name="maxUploadSize" value="#{50*1024*1024}"/>
<property name="defaultEncoding" value="UTF-8"></property>
</bean>
<mvc:annotation-driven>
<mvc:message-converters>
<!-- register-defaults="true"表示使用默认的消息转换器 -->
<!-- FastJson(Spring4.2x以上版本设置) -->
<!-- 使用@responsebody注解并且返回值类型为String时,返回的string字符串带有双引号"{'user':'songfs'}",其原因是直接将string类型转成了json字符串,应该在json解析器之前添加字符串解析器-->
<bean class="org.springframework.http.converter.StringHttpMessageConverter"/>
<!-- FastJsonHttpMessageConverter4 使@ResponseBody支持返回Map<String,Object>等类型,它会自动转换为json-->
<!-- 需要返回json时需要配置 produces = "application/json"。不需要再指定utf-8了 -->
<bean id="fastJsonHttpMessageConverter" class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter">
<!-- 加入支持的媒体类型 -->
<property name="supportedMediaTypes">
<list>
<!-- 这里顺序不能反,一定先写text/html,不然IE执行AJAX时,返回JSON会出现下载文件 -->
<value>text/html;charset=UTF-8</value>
<value>application/json;charset=UTF-8</value>
<value>application/xml;charset=UTF-8</value>
</list>
</property>
<property name="fastJsonConfig">
<bean class="com.alibaba.fastjson.support.config.FastJsonConfig">
<property name="features">
<list>
<value>AllowArbitraryCommas</value>
<value>AllowUnQuotedFieldNames</value>
<value>DisableCircularReferenceDetect</value>
</list>
</property>
<property name="dateFormat" value="yyyy-MM-dd HH:mm:ss"/>
</bean>
</property>
</bean>
</mvc:message-converters>
</mvc:annotation-driven>
</beans>
mybatis.xml(基本没用)
<?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="mapUnderscoreToCamelCase" value="true"/>
</settings>
-->
</configuration>
userMapper.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.dilidili.mapper.userMapper">
<resultMap type="com.dilidili.entity.Users" id="userinfo">
<id column="user_id" property="userid" />
<result column="user_name" property="userName" />
<result column="user_password" property="userPasswd" />
<result column="user_money" property="money" />
<result column="user_vip" property="vip" />
<result column="user_telNum" property="telNum" />
<result column="user_black" property="black" />
<result column="user_reportNum" property="reportNum" />
</resultMap>
<select id="select" resultMap="userinfo"><!-- 全局配置B可自定义resultType -->
select user_id,user_name,user_password from users
</select>
<select id="exist" resultMap="userinfo"><!-- 全局配置B可自定义resultType -->
select user_id,user_name,user_password from users where user_name=#{userName}
</select>
<select id="login" resultMap="userinfo"><!-- 全局配置B可自定义resultType -->
select user_id,user_name,user_password from users where user_name=#{userName} and user_password=#{userPasswd}
</select>
</mapper>
userMapper.java
package com.dilidili.mapper;
import java.util.List;
import org.apache.ibatis.annotations.Param;
import com.dilidili.entity.Users;
public interface userMapper {
public List<Users> select(Users user);
public Users login(@Param("userName")String userName, @Param("userPasswd")String userPasswd);//有多个参数时需要@Param mybatis不会自动识别
public Users exist(String userName);
}
service接口
package com.dilidili.service;
import java.util.List;
import com.dilidili.entity.Users;
public interface userService {
public List<Users> select(Users user);
public Users login(String userName, String userPasswd);
public Users exist(String userName);
}
service实现类
package com.dilidili.service;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.dilidili.entity.Users;
import com.dilidili.mapper.userMapper;
@Service
public class userServiceImpt implements userService {
@Autowired
public userMapper usermapper;
public List<Users> select(Users user){
return usermapper.select(user);
}
public Users login(String userName, String userPasswd) {
return usermapper.login(userName, userPasswd);
}
public Users exist(String userName) {
return usermapper.exist(userName);
}
}
控制层
package com.dilidili.action;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import com.dilidili.entity.Users;
import com.dilidili.service.userService;
@Controller
@RequestMapping("/user")
public class loginController {
@Autowired
private userService userService;
@RequestMapping("/login")
public String login(String userName,String userpasswd) {
Users user = new Users();
if(userService.exist(userName).equals(null)) {
return "error";
}if(userService.login(userName, userpasswd).equals(null)) {
return "error";
}else {
return "success";}
}
}
ssm不需要Dao层 使用mapper