SSM+mybatis+c3p0+jsp常用整合注冊分頁插件pageHelper

1.首先引入現骨幹依賴，我們以spring5版本為例。

<dependencies>
        <!--springmvc引入依賴的包-->
        <!--springmvc-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>5.0.2.RELEASE</version>
        </dependency>
    
        <!--spring-jdbc-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>5.0.2.RELEASE</version>
        </dependency>

        <!--spring的單元測試-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>5.0.2.RELEASE</version>
        </dependency>

        <!--面向切面程式設計-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aspects</artifactId>
            <version>5.0.2.RELEASE</version>
        </dependency>

        <!--mybatis相關-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.4.5</version>
        </dependency>

        <!--mybatis整合spring-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>1.3.1</version>
        </dependency>

    <!--mybatis的分頁插件 pageHelper-->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper</artifactId>
            <version>5.1.2</version>
        </dependency>

        <!--傳回json字元串的支援-->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.9.4</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-annotations</artifactId>
            <version>2.9.4</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-core</artifactId>
            <version>2.9.4</version>
        </dependency>

        <!--c3p0資料庫連接配接池-->
        <dependency>
            <groupId>com.mchange</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.5.3</version>
        </dependency>

        <!--mysql的驅動-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.6</version>
        </dependency>

        <!--引入jstl servlet-api junit-->
        <dependency>
            <groupId>jstl</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>

        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.1.0</version>
            <scope>provided</scope>
        </dependency>

    </dependencies>

2.web.xml

<!DOCTYPE web-app PUBLIC
        "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
        "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>
    <display-name>Archetype Created Web Application</display-name>

    <!--1.項目啟動後加載spring的容器配置檔案-->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:applicationContext.xml</param-value>
    </context-param>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <!--2.加載配置springmvc的前段控制器，也就是servlet-->
    <servlet>
        <servlet-name>dispatcherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <!--加載springmvc.xml檔案-->
        <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>dispatcherServlet</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

    <!--3.字元編碼過濾器 放于所有的過濾器前面-->
    <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>forceRequestEncoding</param-name>
            <param-value>true</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>

    <!--4.使用restful風格的編碼，把普通的頁面post請求轉換成 post  delete put請求-->
    <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>
</web-app>

3.springmvc.xml

<?xml versinotallow="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xmlns:context="http://www.springframework.org/schema/context"
       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.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">

    <!--開啟注解掃描 隻掃描controller-->
    <context:component-scan base-package="com.wang" use-default-filters="false">
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>

    <!--配置視圖解析器 幫助跳轉頁面-->
    <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/pages/"></property>
        <property name="suffix" value=".jsp"></property>
    </bean>

    <!--<!–過濾靜态資源，不攔截靜态資源–>
    <mvc:resources mapping="/css/**" locatinotallow="/css/"/>
    <mvc:resources mapping="/js/**" locatinotallow="/js/"/>
    <mvc:resources mapping="/images/**" locatinotallow="/images/"/>-->


    <!-- 必須配置：開啟springMVC注解支援-->
    <mvc:annotation-driven/>

    <!-- 必須配置：靜态資源也可以通路了-->
    <!--将springmvc不能處理的請求交個Tomcat-->
    <mvc:default-servlet-handler/>
</beans>

4.mybatis-config.xml

<?xml versinotallow="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>

    <!-- 1.駝峰命名規則-->
    <settings>
        <setting name="mapUnderscoreToCamelCase" value="true"/>
    </settings>

    <!-- 2.配置别名-->
    <typeAliases>
        <package name="com.wang.bean"/>
    </typeAliases>

    <!-- 3.注冊分頁插件pageHelper-->
    <plugins>
        <plugin interceptor="com.github.pagehelper.PageInterceptor">
            <property name="reasonable" value="true"/>
        </plugin>
        <!--配置分頁合理化 首頁是和末頁-->

    </plugins>

</configuration>

5.applicationContext.xml

<?xml versinotallow="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:aop="http://www.springframework.org/schema/aop"
       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/aop
    http://www.springframework.org/schema/aop/spring-aop.xsd
    http://www.springframework.org/schema/tx
    http://www.springframework.org/schema/tx/spring-tx.xsd">

    <!--spring 的配置檔案，配置掃描左右業務邏輯-->
    <context:component-scan base-package="com.wang">
        <!--但是不掃描控制器，因為springmvc中已經掃描過了-->
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>

    <!-- 1.配置資料源、事務控制-->
    <context:property-placeholder location="classpath:dbconfig.properties"/>
    <bean id="pooledDataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="jdbcUrl" value="${jdbc.jdbcUrl}"></property>
        <property name="driverClass" value="${jdbc.driverClass}"></property>
        <property name="user" value="${jdbc.user}"></property>
        <property name="password" value="${jdbc.password}"></property>
    </bean>

    <!-- 2.配置和mybatis的整合-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!--指定mybatis全局配置檔案的位置-->
        <property name="configLocation" value="classpath:mybatis-config.xml"></property>
        <property name="dataSource" ref="pooledDataSource"></property>
        <!--指定mybatis的mapper位置-->
        <property name="mapperLocations" value="classpath:mapper/*.xml"></property>
    </bean>

    <!-- 3.配置掃描，将mybatis的接口實作 加入到IOC容器中-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!--掃描所有的dao接口 加入到IOC容器中-->
        <property name="basePackage" value="com.wang.dao"></property>
    </bean>

    <!--配置一個可以批量操作的sqlsession-->
    <bean id="sqlSession" class="org.mybatis.spring.SqlSessionTemplate">
        <constructor-arg name="sqlSessionFactory" ref="sqlSessionFactory"></constructor-arg>
        <constructor-arg name="executorType" value="BATCH"></constructor-arg>
    </bean>


    <!-- 4.配置事務控制管理器-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <!--控制住資料源-->
        <property name="dataSource" ref="pooledDataSource"></property>
    </bean>

    <!--開啟注解的事務，或者開啟基于xml配置的事務【推薦使用】-->
    <aop:config>
        <!--切入點表達式 所有的方法都可以切入事務-->
        <aop:pointcut id="txPoint" expression="execution(* com.wang.service..*(..))"/>
        <!--配置事務增強-->
        <aop:advisor advice-ref="txAdvice" pointcut-ref="txPoint"/>
    </aop:config>
    <!--配置事務增強-->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <!--所有方法都是事務方法-->
            <tx:method name="*"/>
            <!--所有get開始方法都是事務方法，調優哈-->
            <tx:method name="get*" read-only="true"/>
        </tx:attributes>
    </tx:advice>
</beans>

6.dbconfig.properties

jdbc.jdbcUrl=jdbc:mysql://localhost:3306/ssm02_crud
jdbc.driverClass=com.mysql.jdbc.Driver
jdbc.user=root
jdbc.password=123456

7.測試

/**
 * 測試departmentMapper
 * 建議使用spring的單元測試  可已自動注入
 */
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = {"classpath:applicationContext.xml"})
public class MapperTest {
    @Autowired
    DepartmentMapper departmentMapper;
    
    @Test
    public void testCRUD() {
        /*//1、創鍵IOC容器
        ApplicationContext ioc = new ClassPathXmlApplicationContext("applicationContext.xml");
        //2、IOC容器中取出mapper
        ioc.getBean(DepartmentMapper.class);*/

        System.out.println(departmentMapper);
    }
}

SSM+mybatis+c3p0+jsp常用整合注冊分頁插件pageHelper

1.首先引入現骨幹依賴，我們以spring5版本為例。

2.web.xml

3.springmvc.xml

4.mybatis-config.xml

5.applicationContext.xml

6.dbconfig.properties

7.測試

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