ssm框架基础配置

s-s-m整合(spring springmvc mabatis) 参考

1.导入所需的jar包
2.配置web.xml文件
  2.1   spring 的监听
  2.2   springmvc前端控制器
  2.3   spring 解决中文乱码的过滤器
  等
3.配置三大框架的配置文件
  3.1 applicationContext.xml  (spring)
  3.2 spring-servlet.xml    (springmvc)
  3.3 mybatis-config.xml (mybatis)


4. jdbc.properties 配置文件    这里数据源链接使用的c3p0

web.xml的基本配置
注意了:配置文件一定要和web.xml中的配置名字一样
<!-- spring监听器 -->
  <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>
  <!-- springmvc前端控制器 -->
  <servlet>
    <servlet-name>spring</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring-servlet.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>spring</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>
  <!-- spring解决中文乱码的过滤器 -->
  <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>forceEncoding</param-name> 
            <param-value>true</param-value> 
        </init-param> 
    </filter> 
    <filter-mapping> 
        <filter-name>characterEncodingFilter</filter-name> 
        <url-pattern>/*</url-pattern> 
    </filter-mapping>

以下为三打框架的配置文件参考
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1. applicationContext.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:aop="http://www.springframework.org/schema/aop"
    xmlns:p="http://www.springframework.org/schema/p"
    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-2.5.xsd  
                http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd  
                http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

    <!-- Properties文件读取配置，base的properties -->
    <context:property-placeholder location="classpath:jdbc.properties" />

    <!-- data source -->
    <bean id="dataSource"
          class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${datasource.driverClassName}"></property>
        <property name="jdbcUrl" value="${datasource.url}"></property>
        <property name="user" value="${datasource.username}"></property>
        <property name="password" value="${datasource.password}"></property>
        <!--当连接池中的连接耗尽的时候c3p0一次同时获取的连接数。Default: 3 -->
        <property name="acquireIncrement" value="${c3p0.acquireIncrement}"></property>
        <!--初始化时获取三个连接，取值应在minPoolSize与maxPoolSize之间。Default: 3 -->
        <property name="initialPoolSize" value="${c3p0.initialPoolSize}"></property>
        <property name="minPoolSize" value="${c3p0.minPoolSize}"></property>
        <property name="maxPoolSize" value="${c3p0.maxPoolSize}"></property>
        <!--最大空闲时间,60秒内未使用则连接被丢弃。若为0则永不丢弃。Default: 0 -->
        <property name="maxIdleTime" value="${c3p0.maxIdleTime}"></property>
        <!--每60秒检查所有连接池中的空闲连接。Default: 0 -->
        <property name="idleConnectionTestPeriod" value="${c3p0.idleConnectionTestPeriod}"></property>
        <!-- JDBC的标准参数，用以控制数据源内加载的PreparedStatements数量。但由于预缓存的statements
                            属于单个connection而不是整个连接池。所以设置这个参数需要考虑到多方面的因素。
                            如果maxStatements与maxStatementsPerConnection均为0，则缓存被关闭。Default: 0-->
        <property name="maxStatements" value="${c3p0.maxStatements}"></property>
        <!-- c3p0是异步操作的，缓慢的JDBC操作通过帮助进程完成。扩展这些操作可以有效的提升性能 通过
                                  多线程实现多个操作同时被执行。Default: 3-->
        <property name="numHelperThreads" value="${c3p0.numHelperThreads}"></property>
    </bean>
   
    <!-- 定义 SqlSessionFactory -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"
        scope="singleton">
        <property name="dataSource" ref="dataSource" />
        <property name="configLocation" value="classpath:mybatis-config.xml" />
    </bean>
   
    <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->
    <bean id="transactionManager"
        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource" />
    </bean>

    <!-- 配置事务通知属性 -->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <!-- 定义事务传播属性 -->
        <tx:attributes>
            <tx:method name="insert*" propagation="REQUIRED" />
            <tx:method name="update*" propagation="REQUIRED" />
            <tx:method name="edit*" propagation="REQUIRED" />
            <tx:method name="save*" propagation="REQUIRED" />
            <tx:method name="add*" propagation="REQUIRED" />
            <tx:method name="new*" propagation="REQUIRED" />
            <tx:method name="set*" propagation="REQUIRED" />
            <tx:method name="remove*" propagation="REQUIRED" />
            <tx:method name="delete*" propagation="REQUIRED" />
            <tx:method name="change*" propagation="REQUIRED" />
            <tx:method name="get*" propagation="REQUIRED" read-only="true" />
            <tx:method name="select*" propagation="REQUIRED" read-only="true" />
            <tx:method name="query*" propagation="REQUIRED" read-only="true" />
            <tx:method name="find*" propagation="REQUIRED" read-only="true" />
            <tx:method name="load*" propagation="REQUIRED" read-only="true" />
            <tx:method name="*" propagation="REQUIRED" read-only="true" />
        </tx:attributes>
    </tx:advice>

   
    <!-- 配置事务切面 -->
    <aop:config>
        <aop:pointcut id="serviceOperation"
            expression="execution(* com.xxxx.xxx.service..*.*(..))" />
        <aop:advisor advice-ref="txAdvice" pointcut-ref="serviceOperation" />

    </aop:config>


    <!-- Mybatis-Spring 会自动为我们注册Mapper对应的MapperFactoryBean对象 -->
    <!-- Mapper接口所在包名，Spring会自动查找其下的Mapper -->
    <!-- 给所有的dao接口自动添加实现类 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.xxxx.xxx.dao" />
    </bean>
   
    <!-- 自动扫描组件，这里要把controler下面的 controller去除，他们是在springmvc的配置文件中配置的，如果不去除会影响事务管理的。  -->
    <context:component-scan base-package="com.xxxx.ssm">
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller" />
       
    </context:component-scan>

</beans>
*********************************************************************************************************************
2.spring-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:aop="http://www.springframework.org/schema/aop"  
    xmlns:context="http://www.springframework.org/schema/context" 
    xmlns:jee="http://www.springframework.org/schema/jee" 
    xmlns:tx="http://www.springframework.org/schema/tx" 
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="   
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.2.xsd 
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd 
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd 
        http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.2.xsd 
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.2.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd">

    <!-- 扫描包 -->
    <context:component-scan base-package="com.wskj.ssm">
        <!-- 扫描所有的controller 但是不扫描service-->
         <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller" />
         <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Service" />
    </context:component-scan>
   
    <!-- 启用注解 -->
    <mvc:annotation-driven></mvc:annotation-driven>
   
    <!-- 静态资源映射 -->
    <mvc:resources location="/resource/" mapping="/static/**"></mvc:resources>
    <mvc:resources location="/files/" mapping="/files/**"></mvc:resources>
   
    <!-- 页面解析器。prefix：前缀， suffix：后缀 -->
    <bean
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp/" />
        <property name="suffix" value=".jsp" />
    </bean>
   
    <!-- json的支持 -->
    <bean id="messageAdapter"
        class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
        <property name="messageConverters">
            <list>
                <!-- Support JSON -->
                <bean
                    class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter" />
            </list>
        </property>
    </bean>
   
   
    <bean id="exceptionMessageAdapter"
        class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerExceptionResolver">
        <property name="messageConverters">
            <list>
                <!-- Support JSON -->
                <bean
                    class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter" />
            </list>
        </property>
    </bean>
   
    <!-- 文件上传 -->
    <bean id="multipartResolver"
        class="org.springframework.web.multipart.commons.CommonsMultipartResolver"
        p:maxUploadSize="34564356345456"
        p:defaultEncoding="utf-8">
        <!-- <property name="defaultEncoding" value="utf-8"></property> -->
    </bean>
   
    <!-- 配置springmvc的拦截器 -->
    <!-- <mvc:interceptors>
        <mvc:interceptor> -->
            <!-- 设置要拦截的url地址 -->
            <!-- <mvc:mapping path="/**"/> -->
            <!-- 设置不拦截的url -->
            <!-- <mvc:exclude-mapping path="/login.do"/>
            <mvc:exclude-mapping path="/static/**"/>
             --><!-- 设置拦截器 -->
        <!--     <bean class="com.wskj.ssm.interceptors.LoginInterceptor"></bean>
        </mvc:interceptor>
    </mvc:interceptors> -->

</beans>
******************************************************************************************************************
3.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>
    <!-- 参数-->
    <settings> 
        <!-- changes from the defaults --> 
        <setting name="cacheEnabled" value="false" />
        <setting name="useGeneratedKeys" value="true" />
        <setting name="defaultExecutorType" value="REUSE" />
        <setting name="lazyLoadingEnabled" value="false" />
    </settings>
   
    <typeAliases>
        <!--这里给实体类取别名，方便在mapper配置文件中使用-->
        <package name="com.xxxx.xxx.pojo"/>
    </typeAliases> 
       <!--自动加载mapper配置文件 -->
    <mappers>
        <package name="com.xxxx.xxx.dao"/>
    </mappers>
   
</configuration>
***************************************************************************************************************
4. jdbc.properties 配置文件（可以直接写在spring的配置文件中）
datasource.driverClassName=com.mysql.jdbc.Driver
datasource.url=jdbc:mysql://192.168.1.1:3306/shoppingdb
datasource.username=root
datasource.password=123456
c3p0.acquireIncrement=3
c3p0.initialPoolSize=3
c3p0.idleConnectionTestPeriod=60
c3p0.minPoolSize=5
c3p0.maxPoolSize=100
c3p0.maxStatements=100
c3p0.numHelperThreads=10
c3p0.maxIdleTime=60
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
mybatis 貌似是没有级联操作
这里分享个技巧
jdbc.properties中的url地址最后加上allowMultiQueries=true
url=jdbc:mysql://192.168.1.1:3306/liubao2?useUnicode=true&characterencoding=utf8&allowMultiQueries=true

让mysql驱动默认开启批量操作
然后就可以这样写了
    <delete id="deletephotoalbumbyid" parameterType="java.lang.Integer">
        delete from photos where xid=#{id};
        delete from photoalbum where xid=#{id}
    </delete>
这样就可以同时执行两条sql语句了
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其实都是细节性的问题,细节决定成败!!!
--奋斗中的刘阿宝