Spring MVC環境的搭建（JavaConfig 混合 XML方式）
- 創建項目目錄
標準的Maven工程目錄結構
添加Maven依賴
<dependencies> // 單元測試 <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.11</version> <scope>test</scope> </dependency> // Mybatis <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.4.1</version> </dependency> // 數據庫連接池 <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.1.10</version> </dependency> // Mybatis和Spring的整合包 <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.3.1</version> </dependency> // Spring 核心包 <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>${spring.version}</version> </dependency> // Spring Web包 <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-oxm</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> // Spring 測試包 <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring.version}</version> </dependency> // Servlet Api <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.1.0</version> </dependency> // JSTL 標籤 <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> // 處理文件上傳 <dependency> <groupId>commons-fileupload</groupId> <artifactId>commons-fileupload</artifactId> <version>1.3.1</version> </dependency> // JSON轉換 <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-core</artifactId> <version>${jackson.version}</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-annotations</artifactId> <version>${jackson.version}</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>${jackson.version}</version> </dependency> // 參數校驗 <dependency> <groupId>javax.validation</groupId> <artifactId>validation-api</artifactId> <version>1.1.0.Final</version> </dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-validator</artifactId> <version>5.4.1.Final</version> </dependency> // Excel文件操作 <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi</artifactId> <version>3.11</version> </dependency> // MySQL驅動包 <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.38</version> </dependency> // 日誌 <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>1.7.25</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>1.7.25</version> </dependency> </dependencies>創建一個類繼承AbstractAnnotationConfigDispatcherServletInitializer類，並實現其中的抽象方法
public class WebAppInitializer extends AbstractAnnotationConfigDispatcherServletInitializer { /*Spring 上下文*/ @Override protected Class<?>[] getRootConfigClasses() { return new Class[] {RootConfig.class}; } /*配置Web*/ @Override protected Class<?>[] getServletConfigClasses() { return new Class[] {WebConfig.class}; } /*設置攔截請求規則*/ @Override protected String[] getServletMappings() { return new String[] {"*.do"}; } /* * 設置全局編碼爲UTF-8*/ @Override protected Filter[] getServletFilters() { CharacterEncodingFilter characterEncodingFilter = new CharacterEncodingFilter(); characterEncodingFilter.setEncoding("UTF-8"); characterEncodingFilter.setForceEncoding(true); return new Filter[] {characterEncodingFilter}; } }創建RootConfig和WebConfig兩個類
@Configuration /*設置掃描的包，將過濾帶有EnableWebMvc註解的*/ @ComponentScan(basePackages = "jackaroo", excludeFilters = { @ComponentScan.Filter(type = FilterType.ANNOTATION, value = EnableWebMvc.class) }) @MapperScan(basePackages = "jackaroo.dao") @PropertySource(value = {"classpath:datasource.properties"}) /*引入XML配置，可以傳入多個文件位置*/ @ImportResource({"classpath:spring-dao.xml"}) public class RootConfig { @Bean public static PropertySourcesPlaceholderConfigurer placeholderConfigurer() { return new PropertySourcesPlaceholderConfigurer(); } } @Configuration @ComponentScan(basePackages = "jackaroo.web") // 在XML文件中開啓Spring MVC @ImportResource({"classpath:spring-web.xml"}) public class WebConfig extends WebMvcConfigurerAdapter { /*配置所有未被Spring攔截的請求默認使用Servlet處理*/ @Override public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) { super.configureDefaultServletHandling(configurer); configurer.enable(); } /*視圖解析器*/ @Bean public ViewResolver viewResolver() { // 配置視圖解析器，這種視圖解析器一般用於解析JSP InternalResourceViewResolver resolver = new InternalResourceViewResolver(); // 設置視圖解析器訪問視圖的前綴 resolver.setPrefix("/WEB-INF/views/"); // 後綴 resolver.setSuffix(".jsp"); // 設置是否所有的Spring上下文的Bean，都可以作爲Request的屬性，被Jstl訪問到 resolver.setExposeContextBeansAsAttributes(true); resolver.setViewClass(JstlView.class); return resolver; } // 配置處理Multipart文件的Bean @Bean(name = "multipartResolver") public MultipartResolver multipartResolver() throws IOException { /*高版本的Spring和Servlet容器中使用此方式，不需要導入第三方依賴*/ StandardServletMultipartResolver resolver = new StandardServletMultipartResolver(); return resolver; } }配置spring-web.xml和spring-dao.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: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 http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <mvc:annotation-driven conversion-service="conversionService"> </mvc:annotation-driven> <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"> <property name="messageConverters"> <list> <ref bean="jsonConverter"/> </list> </property> </bean> <bean id="jsonConverter" class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"> <property name="supportedMediaTypes"> <list> <value>application/json;charset=UTF-8</value> </list> </property> </bean> <context:component-scan base-package="jackaroo.*"/> <bean id="conversionService" class="org.springframework.format.support.FormattingConversionServiceFactoryBean"> <property name="converters"> <list> <bean class="jackaroo.web.converter.StringToRoleConverter"/> </list> </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:tx="http://www.springframework.org/schema/tx" 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/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <context:property-placeholder location="classpath:datasource.properties"/> <!--配置數據源--> <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close"> <property name="driverClassName" value="${jdbc.driverClassName}"/> <property name="url" value="${jdbc.url}"/> <property name="username" value="${jdbc.username}"/> <property name="password" value="${jdbc.password}"/> <property name="maxActive" value="${jdbc.maxActive}"/> <property name="maxIdle" value="${jdbc.maxIdle}"/> <property name="maxWait" value="${jdbc.maxWait}"/> <!-- 配置監控統計攔截的filters --> <property name="filters" value="stat" /> </bean> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource"/> <property name="configLocation" value="classpath:mybatis-config.xml"/> </bean> <!--配置事務管理器--> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource"/> </bean> <!--配置使用@Transactional配置事務--> <tx:annotation-driven transaction-manager="transactionManager"/> <!--配置自動生成Mapper的代理類--> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="jackaroo.dao"/> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/> <property name="annotationClass" value="org.springframework.stereotype.Repository"/> </bean> </beans>MyBatis配置文件、數據庫連接信息、日誌配置
<?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> <typeAliases> <typeAlias type="jackaroo.pojo.Role" alias="role"/> <package name="jackaroo.pojo"/> </typeAliases> <mappers> <mapper resource="mapper/RoleMapper.xml"/> </mappers> </configuration>jdbc.driverClassName=com.mysql.jdbc.Driver jdbc.url=jdbc:mysql://localhost:3306/weixin jdbc.username=root jdbc.password=root jdbc.maxActive=255 jdbc.maxIdle=5 jdbc.maxWait=10000log4j.rootLogger=DEBUG , stdout log4j.logger.org.springframework=DEBUG log4j.appender.stdout=org.apache.log4j.ConsoleAppender log4j.appender.stdout.layout=org.apache.log4j.PatternLayout log4j.appender.stdout.layout.ConversionPattern=%5p %d %C: %m%n配置Druid（web.xml中配置，可以查看數據連接情況）
<!-- 查看數據源 --> <servlet> <servlet-name>DruidStatView</servlet-name> <servlet-class>com.alibaba.druid.support.http.StatViewServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>DruidStatView</servlet-name> <url-pattern>/druid/*</url-pattern> </servlet-mapping>