SpringMVC
1 SpringMVC 介绍
解析 :Spring mvc 是Spring框架的一部分,基于mvc 的表现层框架 , 用于web项目开发
1.1 mvc 设计模式
简单来说就是 m(model) 模型- v(view) 视图 - c(controller) 控制器 , 三次架构设计模式 。 主要用于前端页面的展示和后端业务数据处理逻辑分离
模式优点:分层设计 , 实现我们业务系统各个组件之间的解耦 , 有利于业务系统的可拓展性 , 维护性 , 有利于并行开发,提升开发效率
1.2 入门案例
1.2.1 准备主配置文件
创建一个web 项目
加入pom.xml的依赖
<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.dsdd.weyou</groupId> <artifactId>springmvc-first</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>war</packaging> <name>springmvc-first Maven Webapp</name> <url>http://maven.apache.org</url> <properties> <!-- spring版本号 --> <spring.version>4.3.8.RELEASE</spring.version> <!-- jstl标签版本 --> <jstl.version>1.2</jstl.version> </properties> <dependencies> <!-- springmvc依赖包 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> <version>${spring.version}</version> </dependency> <!-- JSTL标签类 --> <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId> <version>${jstl.version}</version> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> <scope>test</scope> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.apache.tomcat.maven</groupId> <artifactId>tomcat7-maven-plugin</artifactId> <version>2.1</version> <configuration> <!-- tomcat 的端口号 --> <port>8080</port> <!-- 访问应用的路径 --> <path>/springmvc-first</path> <!-- URL按UTF-8进行编码,解决中文参数乱码 --> <uriEncoding>UTF-8</uriEncoding> <!-- tomcat名称 --> <server>tomcat7</server> </configuration> </plugin> </plugins> </build> </project>
加入SpringMvc.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:p="http://www.springframework.org/schema/p" 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-4.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd"> </beans>
1.2.2 web.xml配置前端控制器
<?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_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>springmvc-first</display-name>
<!-- 配置前端控制器:DispatcherServlet -->
<servlet>
<servlet-name>springmvc-first</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 加载主配置文件 -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc.xml</param-value>
</init-param>
<!-- 配置什么时候加载前端控制器,说明:
1.大于等于0的整数,表示在web容器启动的时候加载
2.小于0的整数,表示在第一次请求到达的时候加载 -->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springmvc-first</servlet-name>
<!-- 配置什么样的请求进入前端控制器,说明:
1.*.do,配置以.do的请求,进入前端控制器
2./,配置所有请求都进入前端控制器 -->
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<!-- 默认的欢迎页面 -->
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
</web-app>
1.2.3 准备jsp页面
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>springmvc入门程序</title>
</head>
<body>
你好,世界。${hello}
</body>
</html>
1.2.4 准备控制器controller
// @Controller注解:用于标记普通的java类,作为控制器
@Controller
public class HelloController {
// ModelAndView:模型和视图,用于设置响应的模型数据,用于设置响应的视图
// @RequestMapping注解:配置请求的url
@RequestMapping("/hello.do")
public ModelAndView hello(){
// 1.创建ModelAndView对象
ModelAndView mav = new ModelAndView();
// 2.设置响应的模型数据
// addObject方法:设置响应的模型数据
// attributeName参数:模型的名称(hello)
// attributeValue参数:模型的数据
mav.addObject("hello", "springmvc!!!");
// 3.设置响应的视图
// setViewName方法:设置视图名称
// viewName参数:视图名称(jsp页面的物理路径)
mav.setViewName("/WEB-INF/jsp/hello.jsp");
return mav;
}
}
1.2.5 配置扫描controller
<?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:p="http://www.springframework.org/schema/p"
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-4.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.0.xsd">
<!-- 配置组件扫描controller -->
<context:component-scan base-package="com.dsdd.weyou.controller"></context:component-scan>
</beans>
2 SpringMVC 三大组件
2.1 处理器映射器
解析 : 根据请求的url , 查找处理器
2.1.1 默认处理器映射器(已过时)
org.springframework.web.servlet.HandlerMapping=org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping,org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping
2.1.2 配置处理器映射器
在springmvc.xml中加入配置处理器映射器
<?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:p="http://www.springframework.org/schema/p"
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-4.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.0.xsd">
<!-- 配置组件扫描controller -->
<context:component-scan base-package="com.dsdd.weyou.controller"></context:component-scan>
<!-- 配置处理器映射器 -->
<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"></bean>
</beans>
2.2 处理器适配器
解析:执行处理器方法
2.2.1 默认处理器适配器(已过时)
org.springframework.web.servlet.HandlerAdapter=org.springframework.web.servlet.mvc.HttpRequestHandlerAdapter,
org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter,
org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter
2.2.2 配置处理器适配器
<?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:p="http://www.springframework.org/schema/p"
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-4.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.0.xsd">
<!-- 配置组件扫描controller -->
<context:component-scan base-package="com.dsdd.weyou.controller"></context:component-scan>
<!-- 配置处理器映射器 -->
<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"></bean>
<!-- 配置处理器适配器 -->
<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"></bean>
</beans>
2.3 实际开发中配置映射器和适配器
<?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:p="http://www.springframework.org/schema/p"
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-4.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.0.xsd">
<!-- 配置组件扫描controller -->
<context:component-scan base-package="com.dsdd.weyou.controller"></context:component-scan>
<!-- 配置处理器映射器 -->
<!-- <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"></bean> -->
<!-- 配置处理器适配器 -->
<!-- <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"></bean> -->
<!-- 处理器映射器,处理器适配器配置方式二 ,说明;
1.等于同时配置RequestMappingHandlerMapping/RequestMappingHandlerAdapter
2.企业项目中,推荐使用这种方式-->
<mvc:annotation-driven></mvc:annotation-driven>
</beans>
2.3 视图解析器
解析 :把逻辑视图(在controller设置的视图名称)解析成物理视图(在浏览器看到的页面)。
2.3.1 默认视图解析器
org.springframework.web.servlet.ViewResolver=org.springframework.web.servlet.view.InternalResourceViewResolver
2.3.2 配置视图解析器
<?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:p="http://www.springframework.org/schema/p"
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-4.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.0.xsd">
<!-- 配置组件扫描controller -->
<context:component-scan base-package="com.dsdd.weyou.controller"></context:component-scan>
<!-- 配置处理器映射器 -->
<!-- <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"></bean> -->
<!-- 配置处理器适配器 -->
<!-- <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"></bean> -->
<!-- 处理器映射器,处理器适配器配置方式二 ,说明;
1.等于同时配置RequestMappingHandlerMapping/RequestMappingHandlerAdapter
2.企业项目中,推荐使用这种方式-->
<mvc:annotation-driven></mvc:annotation-driven>
<!-- 配置视图解析器 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!-- 配置视图的公共目录路径 -->
<property name="prefix" value="/WEB-INF/jsp/"></property>
<!-- 配置视图的扩展名称 -->
<property name="suffix" value=".jsp"></property>
</bean>
</beans>
3 框架原理
3.1 spring mvc 流程
解析 :
1 用户页面请求 , 前端控制器接受用户请求***(DispatcherServlet 为springMvc的核心类)***
2 请求处理器映射器 , 查找处理器(处理器映射器:HandlerMapping查找处理器)
3 根据请求的url , 查找处理器(处理器Controller)
4 返回处理器到前端控制器
5 请求处理器适配器 , 执行处理器(处理器适配器:HandlerAdapter执行处理器)
6 执行处理器 ,返回模型和视图
7 请求解析视图 , 视图解析器(ViewResolve解析视图)
8 解析视图:jsp
9 返回视图 , 响应用户
3.2 项目分层
3.3 spring mvc 整合
3.3.1 pom.xml 加入依赖(mybatis框架包,spring框架包(包括springmvc), myabtis-spring整合包,数据库驱动包,数据源连接池包)
<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.dsdd.weyou</groupId>
<artifactId>ssm</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>ssm Maven Webapp</name>
<url>http://maven.apache.org</url>
<properties>
<!-- spring版本号 -->
<spring.version>4.3.8.RELEASE</spring.version>
<!-- aspectj版本号 -->
<aspectj.version>1.6.12</aspectj.version>
<!-- jstl标签版本 -->
<jstl.version>1.2</jstl.version>
<!-- mybatis版本号 -->
<mybatis.version>3.4.5</mybatis.version>
<!-- mybatis-spring整合包版本 -->
<mybatis.spring.version>1.3.1</mybatis.spring.version>
<!-- mysql版本号 -->
<mysql.version>5.1.30</mysql.version>
<!-- dbcp数据源连接池jar包 -->
<dbcp.version>1.2.2</dbcp.version>
<!-- log4j日志包版本 -->
<slf4j.version>1.7.7</slf4j.version>
<log4j.version>1.2.17</log4j.version>
<!-- commons-lang版本 -->
<commons.lang.version>2.6</commons.lang.version>
</properties>
<dependencies>
<!-- springmvc依赖包 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>${aspectj.version}</version>
</dependency>
<!-- JSTL标签类 -->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>${jstl.version}</version>
</dependency>
<!-- mybatis核心包 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<!-- mybatis-spring整合包 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>${mybatis.spring.version}</version>
</dependency>
<!-- 导入Mysql数据库链接jar包 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.version}</version>
</dependency>
<!-- 导入dbcp数据源连接池jar包 -->
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>${dbcp.version}</version>
</dependency>
<!-- 日志文件管理包 -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>${log4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>commons-lang</groupId>
<artifactId>commons-lang</artifactId>
<version>${commons.lang.version}</version>
</dependency>
<!-- jsp依赖包,只在编译时需要 -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jsp-api</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<finalName>ssm</finalName>
<plugins>
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.1</version>
<configuration>
<!-- tomcat 的端口号 -->
<port>8080</port>
<!-- 访问应用的路径 -->
<path>/ssm</path>
<!-- URL按UTF-8进行编码,解决中文参数乱码 -->
<uriEncoding>UTF-8</uriEncoding>
<!-- tomcat名称 -->
<server>tomcat7</server>
</configuration>
</plugin>
</plugins>
</build>
</project>
3.3.2 准备配置文件(配置别名)
<?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>
<!-- 配置别名 -->
<typeAliases>
<!-- 包扫描方式配置别名 -->
<package name="com.dsdd.weyou.po"/>
</typeAliases>
</configuration>
3.3.3 springMvc.xml(配置组件扫描controller,处理器映射器,处理器适配器,视图解析器)
<?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:p="http://www.springframework.org/schema/p"
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-4.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.0.xsd">
<!-- 配置组件扫描controller -->
<context:component-scan base-package="com.dsdd.weyou.controller"></context:component-scan>
<!-- 注解驱动配置处理器映射器,处理器适配器 -->
<mvc:annotation-driven></mvc:annotation-driven>
<!-- 配置视图解析器 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!-- 配置视图的公共目录路径 -->
<property name="prefix" value="/WEB-INF/jsp/"></property>
<!-- 配置视图扩展名称 -->
<property name="suffix" value=".jsp"></property>
</bean>
</beans>
3.3.4 applicationContext-dao.xml(配置数据源对象,mybatis核心对象SqlSessionFactory,mapper扫描器)
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:p="http://www.springframework.org/schema/p"
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"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
http://www.springframework.org/schema/util
http://www.springframework.org/schema/util/spring-util-4.0.xsd">
<!-- 加载db.properties文件 -->
<context:property-placeholder location="classpath:db.properties"/>
<!-- 配置数据源 -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="${db.driverClassName}"/>
<property name="url" value="${db.url}" />
<property name="username" value="${db.username}" />
<property name="password" value="${db.password}" />
<!-- 最大连接数量 -->
<property name="maxActive" value="${db.maxActive}"/>
<!-- 最小空闲连接 -->
<property name="minIdle" value="${db.minIdle}"/>
<!-- 最大空闲连接 -->
<property name="maxIdle" value="${db.maxIdle}"/>
<!-- 初始化连接数 -->
<property name="initialSize" value="${db.initialSize}"/>
<!-- 超时等待时间以毫秒为单位 -->
<property name="maxWait" value="${db.maxWait}"/>
</bean>
<!-- 配置sqlSessionFactory -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 设置数据源 -->
<property name="dataSource" ref="dataSource"></property>
<!-- 加载myabtis核心配置文件 -->
<property name="configLocation" value="classpath:mybatis/sqlMapConfig.xml"></property>
</bean>
<!-- 配置mapper扫描器 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!-- 配置要扫描的包,说明:
1.如果有多个包,以半角逗号进行分割:","-->
<property name="basePackage" value="com.dsdd.weyou.mapper"></property>
</bean>
</beans>
3.3.5 applicationContext-service.xml(配置组件扫描 service)
<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"xmlns:context="http://www.springframework.org/schema/context"xmlns:p="http://www.springframework.org/schema/p"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"