<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.3.1</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>1.2.3</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.9.8</version>
</dependency>
<dependency>
<groupId>org.thymeleaf</groupId>
<artifactId>thymeleaf-spring5</artifactId>
<version>3.0.12.RELEASE</version>
</dependency>
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.3.1</version>
</dependency>
1.扫描组件
2.视图解析器
3.view-controller
4.default-servlet-handler
5.mvc注解驱动
6.文件上床解析器
7.异常处理
8.拦截器
<?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:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/mvc https://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd">
<!--1.开启注解扫描-->
<context:component-scan base-package="pdsu.edu.mvc"></context:component-scan>
<!-- 2.配置Thymeleaf视图解析器 -->
<bean id="viewResolver" class="org.thymeleaf.spring5.view.ThymeleafViewResolver">
<property name="order" value="1"/>
<property name="characterEncoding" value="UTF-8"/>
<property name="templateEngine">
<bean class="org.thymeleaf.spring5.SpringTemplateEngine">
<property name="templateResolver">
<bean class="org.thymeleaf.spring5.templateresolver.SpringResourceTemplateResolver">
<!-- 视图前缀 -->
<property name="prefix" value="/WEB-INF/templates/"/>
<!-- 视图后缀 -->
<property name="suffix" value=".html"/>
<property name="templateMode" value="HTML5"/>
<property name="characterEncoding" value="UTF-8"/>
</bean>
</property>
</bean>
</property>
</bean>
<!-- <bean class=" org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/templates/"></property>
<property name="suffix" value=".jsp"></property>
</bean>-->
<!--3.视图控制器view-controller-->
<mvc:view-controller path="/" view-name="index"/>
<!--4.开放静态资源访问-->
<mvc:default-servlet-handler/>
<!--5.开启注解驱动-->
<mvc:annotation-driven>
<mvc:message-converters>
<!-- 处理响应中文内容乱码 -->
<bean class="org.springframework.http.converter.StringHttpMessageConverter">
<property name="defaultCharset" value="UTF-8" />
<property name="supportedMediaTypes">
<list>
<value>text/html</value>
<value>application/json</value>
</list>
</property>
</bean>
</mvc:message-converters>
</mvc:annotation-driven>
<!--6.必须通过文件解析器的解析才能将文件转换为MultipartFile对象-->
<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver"></bean>
<!--7.配置拦截器-->
<mvc:interceptors>
<!-- <bean class="pdsu.edu.mvc.interceptors.FirstInterceptor"></bean>-->
<!--<ref bean="firstInterceptor"></ref>-->
<mvc:interceptor>
<mvc:mapping path="/*"/>
<mvc:exclude-mapping path="/"/>
<ref bean="firstInterceptor"></ref>
</mvc:interceptor>
</mvc:interceptors>
<!--8.配置异常处理-->
<bean class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">
<property name="exceptionMappings">
<props>
<!-- key 指定的异常,跳转到error页面-->
<prop key="java.lang.ArithmeticException">error</prop>
</props>
</property>
<!--将异常信息共享在请求域中的键-->
<property name="exceptionAttribute" value="ex"></property>
</bean>
</beans>
普通组件配置拦截器(< ref bean=“firstInterceptor”>< /ref> )
@Component//普通组件
public class FirstInterceptor implements HandlerInterceptor {
//在控制器方法执行之前执行
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
System.out.println("preHandle");
return true;
}
//在控制执行之后执行
@Override
public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
System.out.println("postHandle");
}
//在视图渲染之后执行
@Override
public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
System.out.println("afterCompletion");
}
}
使用异常类处理(不在xml中配置)
@ControllerAdvice//包含@Controller注解功能
public class ExceptionController {
@ExceptionHandler(value = {ArithmeticException.class,NullPointerException.class})//可以写多个异常
public String testException(Exception ex, Model model){
model.addAttribute("ex",ex);
return "error";
}
}
1.配置过滤器
2.配置HiddenHttpMethodFilter
3.配置SpringMVC的前端控制器
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
version="4.0">
<!--配置过滤器-->
<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>
<init-param>
<param-name>forceResponseEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!--配置HiddenHttpMethodFilter帮助我们将 POST 请求转换为 DELETE 或 PUT 请求 -->
<filter>
<filter-name>HiddenHttpMethodFilter</filter-name>
<filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>HiddenHttpMethodFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- 配置SpringMVC的前端控制器,对浏览器发送的请求统一进行处理 -->
<servlet>
<servlet-name>springMVC</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 通过初始化参数指定SpringMVC配置文件的位置和名称 -->
<init-param>
<!-- contextConfigLocation为固定值 -->
<param-name>contextConfigLocation</param-name>
<!-- 使用classpath:表示从类路径查找配置文件,例如maven工程中的src/main/resources -->
<param-value>classpath:springMVC.xml</param-value>
</init-param>
<!--
作为框架的核心组件,在启动过程中有大量的初始化操作要做
而这些操作放在第一次请求时才执行会严重影响访问速度
因此需要通过此标签将启动控制DispatcherServlet的初始化时间提前到服务器启动时
-->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springMVC</servlet-name>
<!--
设置springMVC的核心控制器所能处理的请求的请求路径
/所匹配的请求可以是/login或.html或.js或.css方式的请求路径
但是/不能匹配.jsp请求路径的请求
-->
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
字符编码过滤器
修改Tomcat默认编码解决中文传值乱码问题
找到tomcat / conf / server.xml中如下标签,加入URIEncoding=“UTF-8”。重启tomcat即可生效。
<Connector port="8080" protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="8443" URIEncoding="UTF-8" />
<!--mybatis-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.5.1</version>
</dependency>
<!--mysql驱动-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.22</version>
</dependency>
<!--单元测试-->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.13.1</version>
<scope>test</scope>
</dependency>
<!--分页查询-->
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper</artifactId>
<version>5.1.10</version>
</dependency>
<build>
<!--资源插件:处理src/main/java目录中的xml-->
<resources>
<resource>
<directory>src/main/java</directory><!--所在的目录-->
<includes><!--包括目录下的.properties,.xml 文件都会扫描到-->
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
<filtering>false</filtering>
</resource>
</resources>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
<filtering>false</filtering>
</resource>
</resources>
</build>
<?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>
<!--使用外部属性配置文件 resource:指定类路径下的某个属性的配置文件-->
<properties resource="jdbc.properties" />
<!--设置日志-->
<settings>
<setting name="logImpl" value="STDOUT_LOGGING"/>
</settings>
<!--声明别名,建议不使用,使用全限定类名-->
<typeAliases>
<!--第一种语法格式
type:java类型的全限定名称(自定义类型)
alias:自定义别名
-->
<typeAlias type="pdsu.edu.mybatis.domain.Student" alias="stu" />
<!--
第二种方式:
name:包名 mybatis会把这个包中所有类名作为别名(不区分大小写)
优点:使用方便,一次给多个类定义别名
缺点:别名不可以自定义,必须是类名
-->
<package name="pdsu.edu.mybatis.domain"/>
</typeAliases>
<!--声明分页插件-->
<plugins>
<plugin interceptor ="com.github.pagehelper.PageInterceptor" />
</plugins>
<!--配置 mybatis 环境-->
<environments default="development">
<!--id:数据源的名称-->
<environment id="development">
<!--配置事务类型:使用 JDBC 事务(使用 Connection 的提交和回滚)-->
<transactionManager type="JDBC"/>
<!--配置数据源:创建Connection对象-->
<dataSource type="POOLED">
<!--driver:驱动的内容-->
<property name="driver" value="${jdbc.driver}"/>
<!--连接数据库的内容-->
<property name="url" value="${jdbc.url}"/>
<!--用户名-->
<property name="username" value="${jdbc.username}"/>
<!--密码-->
<property name="password" value="${jdbc.password}"/>
</dataSource>
</environment>
</environments>
<mappers>
<!--第一种方式, resources="mapper文件的路径"
优点:文件清晰。 加载的文件是明确的。
文件的位置比较灵活。
缺点:文件比较多, 代码量会比较大, 管理难度大
-->
<mapper resource="pdsu/edu/mybatis/dao/StudentDao.xml"/>
<!--
第二种方式,使用<package>
name:包名, mapper文件所在的包名。
特点: 把这个包中的所有mapper文件,一次加载。
使用要求:
1. mapper文件和dao接口在同一目录
2. mapper文件和dao接口名称完全一样。
-->
<package name="pdsu.edu.mybatis.dao" />
</mappers>
</configuration>
8.0版本
jdbc.driver=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/springdb?useUnicode=true&characterEncoding=utf-8&useSSL=false&serverTimezone = GMT
jdbc.username=root
jdbc.password=root
5.0版本
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/springdb?useUnicode=true&characterEncoding=utf-8
jdbc.username=root
jdbc.password=root
<?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="pdsu.edu.mybatis.dao.StudentDao">
</mapper>
/*
* 工具类:创建SqlSession对象
* */
public class MybatisUtil {
private static SqlSessionFactory factory = null;
static {
String config = "mybatis.xml";
try{
InputStream inputStream = Resources.getResourceAsStream(config);
factory = new SqlSessionFactoryBuilder().build(inputStream);
}catch (IOException e){
e.printStackTrace();
}
}
//创建方法:SqlSession对象
public static SqlSession getSqlSession(){
SqlSession session = null;
if (factory!=null){
session = factory.openSession();//
}
return session;
}
}
<!-- servlet依赖 -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<!-- jsp依赖 -->
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.2.1-b03</version>
<scope>provided</scope>
</dependency>
<!--监听器依赖-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>5.2.5.RELEASE</version>
</dependency>
<!--spring依赖-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>5.2.5.RELEASE</version>
</dependency>
<!--spring事务依赖-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>5.2.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>5.2.5.RELEASE</version>
</dependency>
<!--mybatis-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.5.1</version>
</dependency>
<!--mybatis和spring集成-->
<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>8.0.22</version>
</dependency>
<!--阿里的连接池-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.1.12</version>
</dependency>
<!--spring-aspects-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>5.2.5.RELEASE</version>
</dependency>
1 加载propeties文件
<!--加载propeties文件-->
<context:property-placeholder location="classpath:jdbc.properties"></context:property-placeholder>
2 配置数据源信息
<!--创建数据源-->
<!--配置数据源信息,德鲁伊数据库连接池-->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
<property name="driverClassName" value="${jdbc.driver}"></property>
<property name="url" value="${jdbc.url}"></property>
<property name="username" value="${jdbc.username}"></property>
<property name="password" value="${jdbc.password}"></property>
</bean>
3 创建SqlSessionFactoryBean
<!--创建SqlSessionFactoryBean-->
<bean class="org.mybatis.spring.SqlSessionFactoryBean">
<!--配置数据源-->
<property name="dataSource" ref="dataSource"></property>
<!--配置MyBatis的核心配置文件-->
<property name="configLocation" value="classpath:SqlMapConfig.xml"></property>
<!--配置实体类-->
<property name="typeAliasesPackage" value="pdsu.edu.mimissm.pojo"></property>
</bean>
4 创建mapper文件的扫描器
<!--创建mapper文件的扫描器-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="pdsu.edu.mimissm.mapper"></property>
</bean>
5 注解扫描
<!-- 示例1 use-default-filters="false"表示现在不是用默认filter,自己配置filter context:include-filter,设置扫描哪些内容 -->
<context:component-scan
base-package="pdsu.edu.service" use-default-filters="false">
<context:include-filter type="annotation"
expression="org.springframework.stereotype.Service" />
</context:component-scan>
<!-- 示例2 context:exclude-filter设置哪些内容不去扫描 -->
<context:component-scan
base-package="pdsu.edu.service">
<context:exclude-filter type="annotation"
expression="org.springframework.stereotype.Service" />
</context:component-scan>
6 开启Aspect生成代理对象
<!-- 开启Aspect生成代理对象 -->
aop:aspectj-autoproxy/aop:aspectj-autoproxy
7 设置事务管理器
<!--设置事务管理器-->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"></property>
</bean>
8 添加事务的切面
<!--添加事务的切面-->
<tx:advice id="myAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="*select*" read-only="true"/>
<tx:method name="*find*" read-only="true"/>
<tx:method name="*get*" read-only="true"/>
<tx:method name="*search*" read-only="true"/>
<tx:method name="*insert*" propagation="REQUIRED"/>
<tx:method name="*add*" propagation="REQUIRED"/>
<tx:method name="*save*" propagation="REQUIRED"/>
<tx:method name="*delete*" propagation="REQUIRED"/>
<tx:method name="*remove*" propagation="REQUIRED"/>
<tx:method name="*clear*" propagation="REQUIRED"/>
<tx:method name="*update*" propagation="REQUIRED"/>
<tx:method name="*modify*" propagation="REQUIRED"/>
<tx:method name="*change*" propagation="REQUIRED"/>
<tx:method name="*set*" propagation="REQUIRED"/>
<tx:method name="*" propagation="SUPPORTS"/>
</tx:attributes>
</tx:advice>
9 完成切面和切入点的植入
<!--完成切面和切入点的植入-->
<aop:config>
<aop:pointcut id="mypointcut" expression="execution(* pdsu.edu.mimissm.service.*.*(..))"/>
<aop:advisor advice-ref="myAdvice" pointcut-ref="mypointcut"></aop:advisor>
</aop:config>
10 开启事务注解
<!--开启事务注解 -->
<tx:annotation-driven transaction-manager="transactionManager"/>
<?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.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd">
<!--加载propeties文件-->
<context:property-placeholder location="classpath:jdbc.properties"></context:property-placeholder>
<!--创建数据源-->
<!--配置数据源信息,德鲁伊数据库连接池-->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
<property name="driverClassName" value="${jdbc.driver}"></property>
<property name="url" value="${jdbc.url}"></property>
<property name="username" value="${jdbc.username}"></property>
<property name="password" value="${jdbc.password}"></property>
</bean>
<!--创建SqlSessionFactoryBean-->
<bean class="org.mybatis.spring.SqlSessionFactoryBean">
<!--配置数据源-->
<property name="dataSource" ref="dataSource"></property>
<!--配置MyBatis的核心配置文件-->
<property name="configLocation" value="classpath:SqlMapConfig.xml"></property>
<!--配置实体类-->
<property name="typeAliasesPackage" value="pdsu.edu.mimissm.pojo"></property>
</bean>
<!--创建mapper文件的扫描器-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="pdsu.edu.mimissm.mapper"></property>
</bean>
</beans>
<?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:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop"
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/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop https://www.springframework.org/schema/aop/spring-aop.xsd">
<!--<import resource="classpath:applicationContext_dao.xml"></import>-->
<!--设定业务逻辑层的包扫描器,
目的是在指定的路径下使用@Service注解的类,
Spring负责创建对象,并添加依赖-->
<context:component-scan base-package="pdsu.edu.mimissm.service">
</context:component-scan>
<!--设置事务管理器-->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"></property>
</bean>
<!--添加事务的切面-->
<tx:advice id="myAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="*select*" read-only="true"/>
<tx:method name="*find*" read-only="true"/>
<tx:method name="*get*" read-only="true"/>
<tx:method name="*search*" read-only="true"/>
<tx:method name="*insert*" propagation="REQUIRED"/>
<tx:method name="*add*" propagation="REQUIRED"/>
<tx:method name="*save*" propagation="REQUIRED"/>
<tx:method name="*delete*" propagation="REQUIRED"/>
<tx:method name="*remove*" propagation="REQUIRED"/>
<tx:method name="*clear*" propagation="REQUIRED"/>
<tx:method name="*update*" propagation="REQUIRED"/>
<tx:method name="*modify*" propagation="REQUIRED"/>
<tx:method name="*change*" propagation="REQUIRED"/>
<tx:method name="*set*" propagation="REQUIRED"/>
<tx:method name="*" propagation="SUPPORTS"/>
</tx:attributes>
</tx:advice>
<!--完成切面和切入点的植入-->
<aop:config>
<aop:pointcut id="mypointcut" expression="execution(* pdsu.edu.mimissm.service.*.*(..))"/>
<aop:advisor advice-ref="myAdvice" pointcut-ref="mypointcut"></aop:advisor>
</aop:config>
</beans>
<!--注册Spring框架-->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext_*.xml</param-value>
</context-param>