整合spring,springmvc和mybatis

2026-06-01 2 花语

本文内容纲要：

我创建的是maven项目，使用到的依赖架包有下面这些：

<dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>4.1.2.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-orm</artifactId> <version>4.1.2.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>4.1.2.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> <version>4.1.3.RELEASE</version> </dependency> <dependency> <groupId>javax.validation</groupId> <artifactId>validation-api</artifactId> <version>1.1.0.Final</version> </dependency> <dependency> <groupId>aspectj</groupId> <artifactId>aspectjrt</artifactId> <version>1.5.3</version> </dependency> <dependency> <groupId>aspectj</groupId> <artifactId>aspectjweaver</artifactId> <version>1.5.3</version> </dependency> <dependency> <groupId>c3p0</groupId> <artifactId>c3p0</artifactId> <version>0.9.1.2</version> </dependency> <dependency> <groupId>commons-lang</groupId> <artifactId>commons-lang</artifactId> <version>2.6</version> </dependency> <dependency> <groupId>commons-fileupload</groupId> <artifactId>commons-fileupload</artifactId> <version>1.3.1</version> </dependency> <dependency> <groupId>commons-io</groupId> <artifactId>commons-io</artifactId> <version>2.4</version> </dependency> <dependency> <groupId>commons-collections</groupId> <artifactId>commons-collections</artifactId> <version>3.2.1</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>1.6.1</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>1.6.1</version> </dependency> <dependency> <groupId>taglibs</groupId> <artifactId>standard</artifactId> <version>1.1.2</version> </dependency> <dependency> <groupId>net.sf.ehcache</groupId> <artifactId>ehcache-core</artifactId> <version>2.6.9</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.4.2</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>4.1.2.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>4.1.2.RELEASE</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> <version>1.1.2</version> </dependency> <dependency> <groupId>taglibs</groupId> <artifactId>standard</artifactId> <version>1.1.2</version> </dependency> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.2.1</version> </dependency> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.2.0</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.26</version> </dependency> <dependency> <groupId>cglib</groupId> <artifactId>cglib</artifactId> <version>2.2.2</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> <version>1.2</version> <type>jar</type> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>2.5</version> <scope>provided</scope> </dependency> <dependency> <groupId>javax.servlet.jsp</groupId> <artifactId>jsp-api</artifactId> <version>2.1</version> <scope>provided</scope> </dependency> </dependencies>

使用的数据源是c3p0.

1.环境都搞好了以后，我们首先在web.xml配置spring的监听器还有设置配置文件的位置：  <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-context.xml</param-value> </context-param>  <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener>

encodingFilter

org.springframework.web.filter.CharacterEncodingFilter

encoding

UTF-8

forceEncoding

true

classpath:xxx表示的是在根路径下面的xxx。以前一直不理解有时候配置文件不能找到，后来看过编译以后的项目结构，就明白了，这个路径是根据编译之后的层次结构来查找的。这个需要注意一下。我们这里用了spring的编码过滤器

2，web.xml配置好了以后，就开始配置spring-context.xml： <context:property-placeholderlocation="classpath:demo.properties"/>  <context:component-scanbase-package=".."> <context:exclude-filtertype="annotation"expression="org.springframework.stereotype.Controller"/> </context:component-scan>  <beanid="sqlSessionFactory"class="org.mybatis.spring.SqlSessionFactoryBean"> <propertyname="dataSource"ref="dataSource"></property> <propertyname="typeAliasesPackage"value="com.yonyou.hotusm"></property> <propertyname="typeAliasesSuperType"value="com.yonyou.hotusm.common.persistence.BaseEntity"></property> <propertyname="configLocation"value="classpath:/mybatis-config.xml"></property> <propertyname="mapperLocations"value="classpath:/mapping/module/**/*.xml"></property> </bean>  <beanid="mapperScreenConfigurer"class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <propertyname="annotationClass"value="com.yonyou.hotusm.common.persistence.annoation.MyBatisDao"></property> <propertyname="basePackage"value="com.yonyou.hotusm"></property> <propertyname="sqlSessionFactoryBeanName"value="sqlSessionFactory"></property> </bean>  <beanid="dataSource"class="com.mchange.v2.c3p0.ComboPooledDataSource"> <propertyname="jdbcUrl"value="${jdbcUrl}"></property> <propertyname="user"value="${user}"></property> <propertyname="password"value="${password}"></property> <propertyname="driverClass"value="${driverClass}"></property> </bean>

这里我将使用到的一些参数都放在了demo.properties配置文件中。

这里最主要的两个类是org.mybatis.spring.SqlSessionFactoryBean还有org.mybatis.spring.mapper.MapperScannerConfigurer

学过mybatis的人应该都看出来了，第一个是配置sqlSessionFactory的.

typeAliasesSuperType:表示mybatis支持的这些vo类型的dao操作，没有的话也是可以的，官方解释是：Superclasswhichdomainobjectshavetoextendtohaveatypealiascreated.Noeffectifthereisnopackagetoscanconfigured. configLocation：表示mybatis的配置文件的位置，因为我们大部分的配置都在spring设置了，所以需要我们在配置文件写的东西也不多，关于每一个配置属性，我觉得自己看文档会更好： <?xmlversion="1.0"encoding="UTF-8"?> <!DOCTYPEconfigurationPUBLIC"-//mybatis.org//DTDConfig3.0//EN""http://mybatis.org/dtd/mybatis-3-config.dtd"> <configuration>  <settings>  <settingname="cacheEnabled"value="true"/>  <settingname="aggressiveLazyLoading"value="true"/>  <settingname="multipleResultSetsEnabled"value="true"/>  <settingname="useColumnLabel"value="true"/>  <settingname="useGeneratedKeys"value="false"/>  <settingname="autoMappingBehavior"value="PARTIAL"/>  <settingname="defaultExecutorType"value="SIMPLE"/>  <settingname="mapUnderscoreToCamelCase"value="true"/>  <settingname="localCacheScope"value="SESSION"/>  <settingname="jdbcTypeForNull"value="NULL"/> </settings> </configuration> mapperLocations:最后的这个属性就比较重要了，因为我们采用的是基于注解的形式来使用mybatis的，所以我们需要指定mapping文件的位置第二个就是mapperScreenConfigurer： annotationClass：表示的是自定义的注释，这个自定义注释就是用来注释dao的，自定义注释很简单：如下： packagecom.yonyou.hotusm.common.persistence.annoation; importjava.lang.annotation.Documented; importjava.lang.annotation.ElementType; importjava.lang.annotation.Retention; importjava.lang.annotation.RetentionPolicy; importjava.lang.annotation.Target; importorg.springframework.stereotype.Component; /** * *@authorHotusm * */ @Retention(RetentionPolicy.RUNTIME) @Component @Target(ElementType.TYPE) @Documented public@interfaceMyBatisDao{ /*成员以无参数的方法的形式被声明 * **/ Stringvalue()default""; }

到时候我们就直接在我们定义的dao中使用@MyBatisDao就可以了

packagecom.yonyou.hotusm.module.sys.dao; importcom.yonyou.hotusm.common.persistence.CrudDao; importcom.yonyou.hotusm.common.persistence.annoation.MyBatisDao; importcom.yonyou.hotusm.module.sys.entity.User; @MyBatisDao publicinterfaceUserDaoextendsCrudDao<User>{ publicvoidinsert(Useruser); }

其他几个参数都比较好理解，就不记笔记了，

需要注意的地方是：

1，mapper配置文件中的命名空间要和自己定义的dao的类路径一样，这是我UserDao的配置 <?xmlversion="1.0"encoding="UTF-8"?> <!DOCTYPEmapperPUBLIC"-//mybatis.org//DTDMapper3.0//EN""http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <mappernamespace="com.yonyou.hotusm.module.sys.dao.UserDao">

不出意外，现在spring和mybatis已经集成好啦，

下面我们就可以来整合spring和springmvc了.相同的，第一步还是配置web.xml

<servlet> <servlet-name>springServlet</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> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springServlet</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping>

这个和配置spring是差不多的，下面是springmvc的配置文件：

<?xmlversion="1.0"encoding="UTF-8"?> <beansxmlns="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/beanshttp://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/mvchttp://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"> <context:property-placeholderlocation="classpath:demo.properties"/>  <mvc:annotation-driven/> <context:component-scanbase-package="*"use-default-filters="false"> <context:include-filtertype="annotation"expression="org.springframework.stereotype.Controller"/> </context:component-scan>  <beanclass="org.springframework.web.servlet.view.InternalResourceViewResolver"> <propertyname="suffix"value=".jsp"></property> <propertyname="prefix"value="/WEB-INF/views/module/"></property> </bean> <mvc:default-servlet-handler/>  <mvc:resourceslocation="/static/"mapping="/static/**"/> <mvc:view-controllerpath="/"view-name="redirect:/f"/> <mvc:interceptors> <mvc:interceptor> <mvc:mappingpath="/**"/> <beanclass="com.yonyou.hotusm.moudle.sys.interceptor.LogInterceptor"/> </mvc:interceptor> </mvc:interceptors> </beans>

主要的就是我上面标注的几个了需要注意的是静态资源文件的映射，因为我们在web.xml中通过"/"将所有的请求都拦截了。所以需要将静态文件拦截映射，注释mvc:default-servlet-handler/的含义就是spring会用默认的Servlet来响应静态文件，(DefaultServletHttpRequestHandler在容器启动是会使用主流web容器默认servlet的名称列表自动查找容器的默认servlet，包括Tomcat,Jetty,Glassfish,JBoss,Resin,WebLogic,andWebSphere。)，如果为默认servlet配置了新的名称，或者这个容器servlet名字不在spring列表中是，必须显式配置默认servlet的名字

配置好了以后，我们就可以使用注解的方式进行springmvc的Controller的编写了.

本文内容总结：

原文链接：https://www.cnblogs.com/zr520/p/4913846.html