springmvc整合mybatis(SSM)
首先 需要引入pom的依賴
<?xml version="1.0" encoding="UTF-8"?>
<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>nchu</groupId>
<artifactId>spring</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<dependencies>
<!--測試-->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<!--日誌-->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.21</version>
</dependency>
<!--J2EE-->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.2</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!--mysql驅動包-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.35</version>
</dependency>
<!--springframework-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>4.2.6.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.2.6.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.2.6.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>4.2.6.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>4.2.6.RELEASE</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.8.9</version>
</dependency>
<!--其他需要的包-->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.4</version>
</dependency>
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.3.1</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.1.1</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.2.3</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>3.12</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.6</version>
</dependency>
<dependency>
<groupId>com.mchange</groupId>
<artifactId>mchange-commons-java</artifactId>
<version>0.2.3.1</version>
</dependency>
<dependency>
<groupId>c3p0</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.1.2</version>
</dependency>
</dependencies>
<build>
<finalName>spring</finalName>
<resources>
<!--表示把java目錄下的有關xml檔案,properties檔案編譯/打包的時候放在resource目錄下-->
<resource>
<directory>${basedir}/src/main/java</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
</resource>
<resource>
<directory>${basedir}/src/main/resources</directory>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<version>1.3.2</version>
<executions>
<execution>
<id>Generate MyBatis Artifacts</id>
<goals>
<goal>generate</goal>
</goals>
</execution>
</executions>
<configuration>
<!-- generator 工具配置檔案的位置 -->
<configurationFile>src/main/resources/mybatis/mybatis-generator/generatorConfig.xml</configurationFile>
<verbose>true</verbose>
<overwrite>true</overwrite>
</configuration>
<dependencies>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.34</version>
</dependency>
<dependency>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-core</artifactId>
<version>1.3.2</version>
</dependency>
</dependencies>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<classifier>exec</classifier>
</configuration>
</plugin>
</plugins>
</build>
</project>
然後配置web.xml
<?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">
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/spring-*.xml</param-value> <!--spring-*.xml 包括 配置dao service -->
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<!--配置dispatcher.xml作為mvc的配置檔案-->
<param-name>contextConfigLocation</param-name>
<param-value>classpath:/spring/dispatcher-web.xml</param-value> <!--配置的是web層 也是dispatcher-->
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index</welcome-file>
</welcome-file-list>
<!--預設首頁需要這兩個一起配置-->
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/index</url-pattern>
</servlet-mapping>
</web-app>
然後配置dispather-web
<?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:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.2.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<!-- 預設使用基於註釋的介面卡和對映器 -->
<mvc:annotation-driven/>
<!-- 只把動態資訊當做controller處理，忽略靜態資訊 -->
<mvc:default-servlet-handler/>
<!-- 自動掃描包中的Controlller 開啟自動掃描含有@Controller的註解的類 -->
<context:component-scan base-package="sell.controller"/>
<!--HandlerMapping 無需配置，springmvc可以預設啟動-->
<!--靜態資源對映-->
<!--本專案把靜態資源放在了WEB-INF的statics目錄下，資源對映如下-->
<mvc:resources mapping="/css/**" location="/WEB-INF/statics/css/"/>
<mvc:resources mapping="/js/**" location="/WEB-INF/statics/js/"/>
<mvc:resources mapping="/image/**" location="/WEB-INF/statics/image/"/>
<!-- 對模型檢視名稱的解析，即在模型檢視名稱新增前後綴(如果最後一個還是表示資料夾,則最後的斜槓不要漏了) 使用JSP-->
<!-- 預設的檢視解析器 在上邊的解析錯誤時使用 (預設使用html)- -->
<bean id="defaultViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
<property name="prefix" value="/WEB-INF/view/"/><!--設定JSP檔案的目錄位置-->
<property name="suffix" value=".jsp"/>
</bean>
</beans>
配置spring-service.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:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
<!-- 掃描service包下所有使用註解的型別 -->
<context:component-scan base-package="sell.service" />
<!-- 配置事務管理器 -->
<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<!-- 注入資料庫連線池 -->
<property name="dataSource" ref="dataSource" />
</bean>
<!-- 配置基於註解的宣告式事務 -->
<tx:annotation-driven/>
</beans>
最後 最複雜的 要和資料庫以及mybatis進行整合的部分 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: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 http://www.springframework.org/schema/context/spring-context.xsd">
<!-- 配置整合mybatis過程 -->
<!-- 1.配置資料庫相關引數properties的屬性：${url} 這裡要在resouce資料夾裡建立jdbc.properties 並寫上資料庫連線資訊-->
<context:property-placeholder location="classpath:jdbc.properties" />
<!-- 2.資料庫連線池 -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<!-- 配置連線池屬性 -->
<property name="driverClass" value="${jdbc.driver}" />
<property name="jdbcUrl" value="${jdbc.url}" />
<property name="user" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
<!-- c3p0連線池的私有屬性 -->
<property name="maxPoolSize" value="30" />
<property name="minPoolSize" value="10" />
<!-- 關閉連線後不自動commit -->
<property name="autoCommitOnClose" value="false" />
<!-- 獲取連線超時時間 -->
<property name="checkoutTimeout" value="10000" />
<!-- 當獲取連線失敗重試次數 -->
<property name="acquireRetryAttempts" value="2" />
</bean>
<!-- 3.配置SqlSessionFactory物件 這裡的部分是要和mybaitis整合的部分 需要配置mybatis-config.xml 和mybatis-mapper.xml-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 注入資料庫連線池 -->
<property name="dataSource" ref="dataSource" />
<!-- 配置MyBaties全域性配置檔案:mybatis-config.xml -->
<property name="configLocation" value="classpath:mybatis/mybatis-config.xml" />
<!-- 掃描entity包 使用別名 寫實體所在的包 -->
<property name="typeAliasesPackage" value="sell.pojo" />
<!-- 掃描sql配置檔案:mapper需要的xml檔案 *.xml表示裡面的所有xml檔案 -->
<property name="mapperLocations" value="classpath:mybatis-mapper/*.xml" />
</bean>
<!-- 4.配置掃描Dao介面包，動態實現Dao介面，注入到spring容器中 DAO介面即是mapper介面 這裡寫mapper介面類所在的包 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!-- 注入sqlSessionFactory -->
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
<!-- 給出需要掃描Dao介面包 -->
<property name="basePackage" value="sell.dao" />
</bean>
</beans>
最後 補完 jdbc.properties mybatis-config.xml 和mybatis-mapper.xml 的內容
jdbc.properties
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/sell?useUnicode=true&characterEncoding=utf8
jdbc.username=root
jdbc.password=xihanzhiwen
mybatis-config
<?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>
<!-- 配置全域性屬性 -->
<settings>
<!-- 使用jdbc的getGeneratedKeys獲取資料庫自增主鍵值 -->
<setting name="useGeneratedKeys" value="true" />
<!-- 使用列別名替換列名 預設:true -->
<setting name="useColumnLabel" value="true" />
<!-- 開啟駝峰命名轉換:Table{create_time} -> Entity{createTime} -->
<setting name="mapUnderscoreToCamelCase" value="true" />
</settings>
</configuration>
mybatis-mapper.xml
裡面就是mybatis的sql配置檔案