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  • SSM框架整合小结

    项目配置文件

    一个SSM框架基本的依赖

    <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/maven-v4_0_0.xsd">
        <modelVersion>4.0.0</modelVersion>
        <groupId>com.winner</groupId>
        <artifactId>web-base</artifactId>
        <packaging>war</packaging>
        <version>1.0-SNAPSHOT</version>
        <name>web-base Maven Webapp</name>
        <url>http://maven.apache.org</url>
        <!-- 集中定义依赖版本号 -->
        <properties>
            <!--和当前项目使用的jdk版本保持一致-->
            <java-version>1.7</java-version>
            <junit.version>4.12</junit.version>
            <spring.version>4.1.3.RELEASE</spring.version>
            <mybatis.version>3.2.8</mybatis.version>
            <mybatis.spring.version>1.2.2</mybatis.spring.version>
            <mybatis.paginator.version>1.2.15</mybatis.paginator.version>
            <mysql.version>5.1.32</mysql.version>
            <logback.version>1.1.7</logback.version>
            <jackson.version>2.4.2</jackson.version>
            <druid.version>1.0.9</druid.version>
            <httpclient.version>4.3.5</httpclient.version>
            <jstl.version>1.2</jstl.version>
            <servlet-api.version>2.5</servlet-api.version>
            <jsp-api.version>2.0</jsp-api.version>
            <joda-time.version>2.5</joda-time.version>
            <commons-lang3.version>3.3.2</commons-lang3.version>
            <commons-io.version>1.3.2</commons-io.version>
            <commons-net.version>3.3</commons-net.version>
            <pagehelper.version>3.4.2-fix</pagehelper.version>
            <jsqlparser.version>0.9.1</jsqlparser.version>
            <commons-fileupload.version>1.3.1</commons-fileupload.version>
            <jedis.version>2.7.2</jedis.version>
            <solrj.version>4.10.3</solrj.version>
            <freemarker.version>2.3.23</freemarker.version>
            <quartz.version>2.2.2</quartz.version>
        </properties>
        <dependencies>
            <!-- 时间操作组件 -->
            <dependency>
                <groupId>joda-time</groupId>
                <artifactId>joda-time</artifactId>
                <version>${joda-time.version}</version>
            </dependency>
            <!-- Apache工具组件 -->
            <dependency>
                <groupId>org.apache.commons</groupId>
                <artifactId>commons-lang3</artifactId>
                <version>${commons-lang3.version}</version>
            </dependency>
            <dependency>
                <groupId>org.apache.commons</groupId>
                <artifactId>commons-io</artifactId>
                <version>${commons-io.version}</version>
            </dependency>
            <dependency>
                <groupId>commons-net</groupId>
                <artifactId>commons-net</artifactId>
                <version>${commons-net.version}</version>
            </dependency>
            <!-- Jackson Json处理工具包 -->
            <!--只需要这一个就可以了-->
            <!--不用再引入core和annotations-->
            <dependency>
                <groupId>com.fasterxml.jackson.core</groupId>
                <artifactId>jackson-databind</artifactId>
                <version>${jackson.version}</version>
            </dependency>
            <!-- httpclient -->
            <dependency>
                <groupId>org.apache.httpcomponents</groupId>
                <artifactId>httpclient</artifactId>
                <version>${httpclient.version}</version>
            </dependency>
            <!-- 单元测试 -->
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>${junit.version}</version>
                <scope>test</scope>
            </dependency>
            <!-- 日志处理 -->
            <dependency>
                <groupId>ch.qos.logback</groupId>
                <artifactId>logback-classic</artifactId>
                <version>${logback.version}</version>
            </dependency>
            <!-- Mybatis -->
            <dependency>
                <groupId>org.mybatis</groupId>
                <artifactId>mybatis</artifactId>
                <version>${mybatis.version}</version>
            </dependency>
            <dependency>
                <groupId>org.mybatis</groupId>
                <artifactId>mybatis-spring</artifactId>
                <version>${mybatis.spring.version}</version>
            </dependency>
            <!-- MySql -->
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>${mysql.version}</version>
            </dependency>
            <!-- 连接池 -->
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>druid</artifactId>
                <version>${druid.version}</version>
            </dependency>
            <!-- Spring -->
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-webmvc</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-aspects</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-context-support</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <!-- JSP相关 -->
            <dependency>
                <groupId>jstl</groupId>
                <artifactId>jstl</artifactId>
                <version>${jstl.version}</version>
            </dependency>
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>servlet-api</artifactId>
                <version>${servlet-api.version}</version>
                <scope>provided</scope>
            </dependency>
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>jsp-api</artifactId>
                <version>${jsp-api.version}</version>
                <scope>provided</scope>
            </dependency>
            <!-- 文件上传组件 -->
            <dependency>
                <groupId>commons-fileupload</groupId>
                <artifactId>commons-fileupload</artifactId>
                <version>${commons-fileupload.version}</version>
            </dependency>
            <!-- Redis客户端 -->
            <dependency>
                <groupId>redis.clients</groupId>
                <artifactId>jedis</artifactId>
                <version>${jedis.version}</version>
            </dependency>
            <!-- solr客户端 -->
            <dependency>
                <groupId>org.apache.solr</groupId>
                <artifactId>solr-solrj</artifactId>
                <version>${solrj.version}</version>
            </dependency>
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>fastjson</artifactId>
                <version>1.2.8</version>
            </dependency>
            <dependency>
                <groupId>com.google.guava</groupId>
                <artifactId>guava</artifactId>
                <version>20.0</version>
            </dependency>
            <dependency>
                <groupId>org.aspectj</groupId>
                <artifactId>aspectjrt</artifactId>
                <version>1.6.11</version>
            </dependency>
            <dependency>
                <groupId>org.aspectj</groupId>
                <artifactId>aspectjweaver</artifactId>
                <version>1.6.11</version>
            </dependency>
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
                <version>1.16.18</version>
            </dependency>
        </dependencies>
    
        <build>
            <finalName>${project.artifactId}</finalName>
            <plugins>
                <plugin>
                    <groupId>org.apache.tomcat.maven</groupId>
                    <artifactId>tomcat7-maven-plugin</artifactId>
                    <configuration>
                        <path>/</path>
                        <port>8081</port>
                        <uriEncoding>UTF-8</uriEncoding>
                    </configuration>
                </plugin>
                <!--Java编译插件-->
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <version>3.2</version>
                    <configuration>
                        <source>${java-version}</source>
                        <target>${java-version}</target>
                        <encoding>UTF-8</encoding>
                    </configuration>
                </plugin>
            </plugins>
    
        </build>
    </project>

    首先明白为什么要整合:

    一.让Spring管理SqlSessionFactory

    二.声明式事务管理

    明白了这两点,需要哪些配置就很明了了~

    1.首先肯定是需要mybatis的配置文件

    mybatis-config.xml

    <?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>
    
    </configuration>

    2.让spring管理sessionfactory

    spring-dal.xml(dal:数据访问层)

    <?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"
           xmlns:context="http://www.springframework.org/schema/context" 
           xmlns:p="http://www.springframework.org/schema/p"
           xmlns:aop="http://www.springframework.org/schema/aop" 
           xmlns:tx="http://www.springframework.org/schema/tx"
           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-4.0.xsd
           http://www.springframework.org/schema/context 
           http://www.springframework.org/schema/context/spring-context-4.0.xsd
           http://www.springframework.org/schema/aop 
           http://www.springframework.org/schema/aop/spring-aop-4.0.xsd 
           http://www.springframework.org/schema/tx 
           http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
           http://www.springframework.org/schema/util 
           http://www.springframework.org/schema/util/spring-util-4.0.xsd">
    
        <!-- 让spring管理sqlsessionfactory 使用mybatis和spring整合包中的 -->
        <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
            <!-- 数据库连接池 -->
            <property name="dataSource" ref="dataSource"/>
            <!-- 加载mybatis的全局配置文件 -->
            <property name="configLocation" value="classpath:mybatis/mybatis-config.xml"/>
    <!--mybatis映射文件--> <property name="mapperLocations" value="classpath:mybatis/mapper/*.xml"/> </bean> <!--mapper接口的扫描器--> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.winner.mapper"/> </bean> </beans>
    public class SqlSessionFactoryBean implements FactoryBean<SqlSessionFactory>, InitializingBean, ApplicationListener<ApplicationEvent> {
    
      //.....
    
      private Resource configLocation;//mybatis主配置文件的位置
    
      private Resource[] mapperLocations;//mybatis映射文件的位置
    
      private DataSource dataSource;//数据源
      
      //......
    }

    3.上面我们能看到,需要数据源

    spring-datasource.xml

    <?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"
           xmlns:context="http://www.springframework.org/schema/context" 
           xmlns:p="http://www.springframework.org/schema/p"
           xmlns:aop="http://www.springframework.org/schema/aop" 
           xmlns:tx="http://www.springframework.org/schema/tx"
           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-4.0.xsd
           http://www.springframework.org/schema/context 
           http://www.springframework.org/schema/context/spring-context-4.0.xsd
           http://www.springframework.org/schema/aop 
           http://www.springframework.org/schema/aop/spring-aop-4.0.xsd 
           http://www.springframework.org/schema/tx 
           http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
           http://www.springframework.org/schema/util 
           http://www.springframework.org/schema/util/spring-util-4.0.xsd">
    
        <!-- 数据库连接池 -->
        <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
              destroy-method="close">
            <property name="url" value="${jdbc.url}"/>
            <property name="username" value="${jdbc.username}"/>
            <property name="password" value="${jdbc.password}"/>
            <property name="driverClassName" value="${jdbc.driver}"/>
            <property name="maxActive" value="10"/>
            <property name="minIdle" value="5"/>
        </bean>
    
    </beans>

    4.上面我们看到,需要properties文件

    jdbc.properties

    jdbc.driver=com.mysql.jdbc.Driver
    jdbc.url=jdbc:mysql://localhost:3306/test?zeroDateTimeBehavior=convertToNull&amp;autoReconnect=true&amp;useUnicode=true&amp;characterEncoding=utf-8
    jdbc.username=root 
    jdbc.password=root

    5.肯定要加载这些properties文件呀

    spring-properties.xml

    <?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"
           xmlns:context="http://www.springframework.org/schema/context" 
           xmlns:p="http://www.springframework.org/schema/p"
           xmlns:aop="http://www.springframework.org/schema/aop" 
           xmlns:tx="http://www.springframework.org/schema/tx"
           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-4.0.xsd
           http://www.springframework.org/schema/context 
           http://www.springframework.org/schema/context/spring-context-4.0.xsd
           http://www.springframework.org/schema/aop 
           http://www.springframework.org/schema/aop/spring-aop-4.0.xsd 
           http://www.springframework.org/schema/tx 
           http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
           http://www.springframework.org/schema/util 
           http://www.springframework.org/schema/util/spring-util-4.0.xsd">
    
        <!--使用spring自带的占位符替换功能-->
        <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
            <!--允许JVM参数覆盖-->
            <property name="systemPropertiesModeName" value="SYSTEM_PROPERTIES_MODE_OVERRIDE"/>
            <!--忽略没有找到的资源文件-->
            <property name="ignoreResourceNotFound" value="true"/>
            <!--配置资源文件-->
            <property name="locations">
                <list>
                    <value>classpath:properties/jdbc.properties</value>
                </list>
            </property>
        </bean>
    
    </beans>

    6.声明式事务管理

    spring-tx.xml

    <?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"
           xmlns:context="http://www.springframework.org/schema/context"
           xmlns:p="http://www.springframework.org/schema/p"
           xmlns:aop="http://www.springframework.org/schema/aop"
           xmlns:tx="http://www.springframework.org/schema/tx"
           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-4.0.xsd
           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context-4.0.xsd
           http://www.springframework.org/schema/aop
           http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
           http://www.springframework.org/schema/tx
           http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
           http://www.springframework.org/schema/util
           http://www.springframework.org/schema/util/spring-util-4.0.xsd">
        <!-- 事务管理器 -->
        <bean id="transactionManager"
              class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
            <!-- 数据源 -->
            <property name="dataSource" ref="dataSource"/>
        </bean>
        <!--基于注解-->
       <tx:annotation-driven transaction-manager="transactionManager"/>
    </beans>

    看源码可以知道DataSourceTransactionManager只依赖数据源。

    7.组件扫描

    spring-web.xml

    <?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"
           xmlns:context="http://www.springframework.org/schema/context"
           xmlns:p="http://www.springframework.org/schema/p"
           xmlns:aop="http://www.springframework.org/schema/aop"
           xmlns:tx="http://www.springframework.org/schema/tx"
           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-4.0.xsd
           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context-4.0.xsd
           http://www.springframework.org/schema/aop
           http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
           http://www.springframework.org/schema/tx
           http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
           http://www.springframework.org/schema/util
           http://www.springframework.org/schema/util/spring-util-4.0.xsd">
    
        <!-- 包扫描器,扫描带@Service注解的类 -->
        <context:component-scan base-package="com.winner.service"></context:component-scan>
    
    </beans>

    8.spring与mybatis整合完了,现在要加入springmvc了

    dispatcher-servlet.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:p="http://www.springframework.org/schema/p"
           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.xsd
           http://www.springframework.org/schema/mvc
           http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context.xsd">
    
        <!-- 配置包扫描器,扫描controller -->
        <context:component-scan base-package="com.winner.controller"></context:component-scan>
        <!-- 配置注解驱动 -->
        <mvc:annotation-driven/>
        <mvc:resources mapping="/js/**" location="/js/"/>
        <mvc:resources mapping="/css/**" location="/css/"/>
        <!-- 视图解析器 -->
        <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
            <property name="prefix" value="/WEB-INF/views/"/>
            <property name="suffix" value=".jsp"/>
        </bean>
    
    </beans>

    9.最后是配置web.xml

    <?xml version="1.0" encoding="UTF-8"?>
    <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xmlns="http://java.sun.com/xml/ns/javaee" 
             xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
             xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
             http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
             id="taotao" version="2.5">
        <display-name>taotao-manager</display-name>
        <welcome-file-list>
            <welcome-file>index.html</welcome-file>
            <welcome-file>index.htm</welcome-file>
            <welcome-file>index.jsp</welcome-file>
            <welcome-file>default.html</welcome-file>
            <welcome-file>default.htm</welcome-file>
            <welcome-file>default.jsp</welcome-file>
        </welcome-file-list>
        <!-- 初始化spring容器,业务层和持久层的spring配置文件,这些配置文件由Spring父容器使用 -->
        <context-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring/spring-*.xml</param-value>
        </context-param>
        <listener>
            <listener-class>
    org.springframework.web.context.ContextLoaderListener

    </listener-class> </listener> <!-- 解决post乱码 --> <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> </filter> <filter-mapping> <filter-name>CharacterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- springmvc的前端控制器 --> <servlet> <servlet-name>winner-manager</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <!-- contextConfigLocation不是必须的, 如果不配置contextConfigLocation, springmvc的配置文件默认在:WEB-INF/servlet的name+"-servlet.xml" --> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring/dispatcher-servlet.xml</param-value> </init-param>
         <!--注意顺序--> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>winner-manager</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> </web-app>

    Spring的父容器是由ContextLoaderListener初始化的。

    Spring的子容器是由DispatcherServlet初始化的。

    访问规则是:父容器不能访问子容器中的对象,但是子容器可以访问父容器中的对象,所以如果你将事务配置在父容器中,但是service是用子容器扫描的,那么你的事务将不会生效。

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  • 原文地址:https://www.cnblogs.com/winner-0715/p/5492650.html
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