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SpringMVC,Mybatis,FreeMarker连接mycat示例(一)

项目结构如图:

首先是各种配置文件,属性文件

mycat.properties内容:

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#数据库连接配置
#以下是mycat中间件连接
jdbc.driverClassName=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:8066/SSMDB?useUnicode=true&characterEncoding=UTF-8
jdbc.username=wu
jdbc.password=hello123
 
#以下是mysql连接
#jdbc.url=jdbc:mysql://localhost:3306/MyCAT_DB?useUnicode=true&characterEncoding=UTF-8
#jdbc.username=root
#jdbc.password=123456
 
#定义初始连接数
jdbc.initialPoolSize=10
 
jdbc.maxPoolSize=200
jdbc.minPoolSize=5
jdbc.maxIdleTime=20
jdbc.acquireIncrement=10
jdbc.maxStatements=50
jdbc.idleConnectionTestPeriod=60
 
jdbc.initialSize=5
#定义最大空闲 
jdbc.maxIdle=20
#定义最小空闲
jdbc.minIdle=5
#定义最大连接数
jdbc.maxActive=200
jdbc.removeAbandonedTimeout=300
#定义最长等待时间 
jdbc.maxWait=60000
jdbc.maxOpenPreparedStatements=10

log4j.xml内容:

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<!--?xml version='1.0' encoding='UTF-8' ?-->
 
 
<log4j:configuration xmlns:log4j="https://jakarta.apache.org/log4j/">
 
     
        <layout class="org.apache.log4j.PatternLayout"><param name="ConversionPattern" value="%d [%7r] %6p - %30.30c - %m \n">
        </layout>
    </appender>
 
    <param name="Append" value="false"><param name="file" value="mycatDemo-debug.log">
        <layout class="org.apache.log4j.PatternLayout"><param name="ConversionPattern" value="%d [%7r] %6p - %30.30c - %m \n">
        </layout>
    </appender>
 
    <param name="DatePattern" value="'.'yyyy-MM-dd"><param name="Append" value="true"><param name="file" value="mycatDemo.log">
        <layout class="org.apache.log4j.PatternLayout"><param name="ConversionPattern" value="%d [%7r] %6p - %30.30c - %m \n">
        </layout>
        <filter class="org.apache.log4j.varia.LevelRangeFilter"><param name="LevelMin" value="DEBUG">
        </filter>
    </appender>
 
    <!--
            <param name="DatePattern" value="'.'yyyy-MM-dd"/>
            <param name="file" value="${las-im-scheduler.log.path}/las-report-zookeeper.log"/>
            <layout class="org.apache.log4j.PatternLayout">
                <param name="ConversionPattern" value="%d [%7r] %6p - %30.30c - %m \n"/>
            </layout>
        </appender>
 
        <category name="org.apache.zookeeper" additivity="false">
            <priority value="debug"/>
             
        </category>
    -->
 
    <category additivity="true" name="org.cometd">
        <priority value="ERROR">
         
    </appender-ref></priority></category>
 
    <category additivity="true" name="org.springframework.orm.ibatis3">
        <priority value="INFO">
         
    </appender-ref></priority></category>
 
    <category additivity="true" name="org.apache.ibatis">
        <priority value="ERROR">
         
    </appender-ref></priority></category>
 
    <category additivity="true" name="java.sql">
        <priority value="ERROR">
         
    </appender-ref></priority></category>
 
    <category additivity="true" name="com.mycat">
        <priority value="debug">
         
    </appender-ref></priority></category>
 
    <root>
        <priority value="ERROR">
         
         
    </appender-ref></appender-ref></priority></root>
 
</log4j:configuration>

sqlmap文件下的TestMapper.xml实体映射文件

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<!--?xml version="1.0" encoding="UTF-8" ?-->
 
 
<mapper namespace="com.mycat.test.model.Test">
 
    <resultmap id="testResultMap" type="com.mycat.test.model.Test">
        <result column="id_" property="id">
        <result column="name_" property="name">
        <result column="user_id" property="userId">
    </result></result></result></resultmap>
 
    <select id="selectAll" resultmap="testResultMap">
        select * from sam_test
    </select>
 
    <select id="selectSome" parametertype="java.util.Map" resultmap="testResultMap">
        select * from sam_test limit #{offset},#{limit}
    </select>
 
    <select id="getObject" parametertype="java.lang.Object" resultmap="testResultMap">
        select * from sam_test where id_ = #{id}
    </select>
 
    <insert id="insert" keyproperty="id_" parametertype="com.mycat.test.model.Test">
        INSERT INTO sam_test(
        name_,
        user_id
        )
        VALUES(
            #{name,jdbcType=VARCHAR},
            #{userId,jdbcType=BIGINT}
        )
        <selectkey keyproperty="id" order="AFTER" resulttype="java.lang.Integer">
            select last_insert_id() as id
        </selectkey>
    </insert>
 
    <update id="update" parametertype="com.mycat.test.model.Test">
        update sam_test
        <set>
            <if test="name != null and name != ''">
              name_ = #{name},
            </if>
            <if test="userId != null">
              user_id = #{userId},
            </if>
        </set>
        where id_=#{id}
    </update>
 
    <!-- #{}中的参数名与方法中的参数的复杂数据类型的属性名一致 -->
    <delete id="delete" parametertype="java.lang.Integer">
        delete from sam_test where id_ = #{id}
    </delete>
 
    <select id="findOneByMap" resultmap="testResultMap">
        select * from sam_test where 1=1 AND
         
            ${param.name} = #{param.value}
         
        limit 0, 1
    </select>
 
    <select id="findOneByObject" parametertype="com.mycat.test.model.Test" resultmap="testResultMap">
        select * from sam_test
         
                 
                    and name_=#{name}
                 
                 
                    and user_id=#{userId}
                 
         
        limit 0, 1
    </select>
 
    <select id="findByMap" resultmap="testResultMap">
        select * from sam_test where 1=1 AND
         
            ${param.name} = #{param.value}
         
    </select>
 
    <select id="findByObject" parametertype="com.mycat.test.model.Test" resultmap="testResultMap">
        select * from sam_test
         
             
                and name_=#{name}
             
             
                and user_id=#{userId}
             
         
    </select>
 
    <select id="findByIn" resultmap="testResultMap">
        select * from sam_test where 1=1 AND
         
            ${param.name} IN (#{param.value})
         
    </select>
 
    <select id="findByLike" resultmap="testResultMap">
        select * from sam_test where 1=1 AND
         
            ${param.name} LIKE #{param.value}
         
    </select>
 
    <select id="getTotalCount" resulttype="int">
        select count(1) from sam_test
    </select>
 
    <select id="getCount" parametertype="java.util.Map" resulttype="int">
        select count(1) from sam_test where 1=1
         
        ${whereClause}
         
    </select>
 
    <select id="query" parametertype="java.util.Map" resultmap="testResultMap">
        select ${fieldsClause} from sam_test where 1=1
         
        ${whereClause}
         
         
        ${orderClause}
         
        limit ${limit} offset ${offset}
    </select>
</mapper>

spring-config-db.xml配置:

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<!--?xml version="1.0" encoding="UTF-8"?-->
       https://www.springframework.org/schema/beans/spring-beans-3.1.xsd
       https://www.springframework.org/schema/tx
       https://www.springframework.org/schema/tx/spring-tx.xsd
       https://www.springframework.org/schema/aop
       https://www.springframework.org/schema/aop/spring-aop.xsd">
 
    <!-- 配置Mybatis会话工厂 -->
    <bean class="org.mybatis.spring.SqlSessionFactoryBean" id="sqlSessionFactory">
 
        <!-- 注入DataSource -->
        <!-- 数据源 -->
        <property name="dataSource" ref="druidDataSource">
 
        <!-- 需要加载的mapper.xml,该bean被创建后,会自动加载这些文件。 -->
        <property name="mapperLocations">
            <list>
                  <!-- 自动匹配Mapper映射文件  --> 
                <value>classpath*:sqlmap/*Mapper.xml</value>
            </list>
        </property>
    </property></bean>
 
    <bean class="org.mybatis.spring.SqlSessionTemplate" id="sqlSession">
        <constructor-arg ref="sqlSessionFactory">
    </constructor-arg></bean>
 
    <!-- Druid集连接池,首先spring配置DataSource -->
    <bean class="com.alibaba.druid.pool.DruidDataSource" destroy-method="close" id="druidDataSource" init-method="init">
        <property name="driverClassName" value="${jdbc.driverClassName}">
 
         <!-- 基本属性 url、user、password --> 
        <property name="url" value="${jdbc.url}">
        <property name="username" value="${jdbc.username}">
        <property name="password" value="${jdbc.password}">
        <!--initialSize: 初始化连接-->
        <property name="initialSize" value="${jdbc.initialSize}">
        <!--minIdle: 最小空闲连接-->
        <property name="minIdle" value="${jdbc.minIdle}">
        <!--maxActive: 最大连接数量-->
        <property name="maxActive" value="${jdbc.maxActive}">
         <!--removeAbandoned: 对泄漏的连接,是否自动回收超时连接-->
        <property name="removeAbandoned" value="true">
        <!--removeAbandonedTimeout: 超时时间(以秒数为单位)-->
        <property name="removeAbandonedTimeout" value="${jdbc.removeAbandonedTimeout}">
        <!--maxWait: 超时等待时间以毫秒为单位 6000毫秒/1000等于60秒-->
        <property name="maxWait" value="${jdbc.maxWait}">
        <property name="defaultAutoCommit">
            <value>false</value>
        </property>
        <property name="validationQuery" value="select 1">
 
        <!-- 打开PSCache,并且指定每个连接上PSCache的大小 --> 
        <!-- 如果用Oracle,则把poolPreparedStatements配置为true,mysql可以配置为false。分库分表较多的数据库,建议配置为false --> 
        <property name="poolPreparedStatements" value="true">
        <property name="maxOpenPreparedStatements" value="${jdbc.maxOpenPreparedStatements}">
 
         <!-- 配置监控统计拦截的filters,去掉后监控界面sql无法统计 -->
         <!--<property name="filters" value="stat"/>-->
         <!-- 慢日志查询  缺省为3秒  修改为1010000 --> 
        <!-- <property name="connectionProperties" value="druid.stat.slowSqlMillis=5000" />   -->
 
    </property></property></property></property></property></property></property></property></property></property></property></property></property></bean>
 
    <!-- druid 监控  spring  --> 
    <!--  <bean id="druid-stat-interceptor" class="com.alibaba.druid.support.spring.stat.DruidStatInterceptor"/> -->
 
    <!-- 按类型拦截配置 -->
    <!-- <bean id="druid-type-proxyCreator" class="com.alibaba.druid.support.spring.stat.BeanTypeAutoProxyCreator"> -->
    <!-- 所有ABCInterface的派生类被拦截监控  -->
    <!-- <property name="targetBeanType" value="xxxx.ABCInterface" />
         <property name="interceptorNames">
        <list>
            <value>druid-stat-interceptor</value>
        </list>
    </property>
    </bean> -->
 
 
    <!-- 按照BeanId来拦截配置 -->
    <!-- <bean class="org.springframework.aop.framework.autoproxy.BeanNameAutoProxyCreator">
    <property name="proxyTargetClass" value="true" />
    <property name="beanNames">
        <list> -->
            <!-- 这里配置需要拦截的bean id列表 -->
            <!-- <value>xxx-dao</value>
            <value>xxx-service</value>
        </list>
    </property>
    <property name="interceptorNames">
        <list>
            <value>druid-stat-interceptor</value>
        </list>
    </property>
    </bean> -->
 
    <!-- 方法名正则匹配拦截配置 -->
    <!--    <bean id="druid-stat-pointcut" class="org.springframework.aop.support.JdkRegexpMethodPointcut" scope="prototype">   -->
    <!--         <property name="patterns">   -->
    <!--             <list>   -->
    <!--                 <value>com.xinnet.*.service.*</value>   -->
    <!--                <value>com.mycompany.service.*</value> -->
    <!--                 <value>com.mycompany.dao.*</value> -->
    <!--             </list>   -->
    <!--         </property>   -->
    <!--     </bean>   -->
    <!--        -->
    <!--            -->
    <!--     </aop:config>   -->
 
 
     <!-- 配置事物管理器 -->
    <!-- 事务管理器 对mybatis操作数据库事务控制,spring使用jdbc的事务控制类 -->
    <bean class="org.springframework.jdbc.datasource.DataSourceTransactionManager" id="transactionManager">
         <!-- 数据源 dataSource在上面配置了 -->
        <property name="dataSource" ref="druidDataSource">
    </property></bean>
    <!-- 配置声明式事务 -->
    <tx:annotation-driven transaction-manager="transactionManager">
 
</tx:annotation-driven></beans>

vcxml配置">spring-config-mvc.xml配置:

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<!--?xml version="1.0" encoding="UTF-8"?-->
<!--suppress ALL -->
            https://www.springframework.org/schema/beans
            https://www.springframework.org/schema/beans/spring-beans-3.1.xsd
            https://www.springframework.org/schema/context
            https://www.springframework.org/schema/context/spring-context-3.1.xsd
            https://www.springframework.org/schema/mvc
            https://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
            https://www.springframework.org/schema/util
            https://www.springframework.org/schema/util/spring-util-3.1.xsd">
 
     <!-- spring 自动扫描组件 -->
     <!-- 自动扫描 controller 包下的所有类 --> 
     <!-- mvc controller -->
    <context:component-scan base-package="com.mycat">
        <context:include-filter expression=".*.controller.*" type="regex">
        <context:include-filter expression=".*.service.*" type="regex">
        <context:include-filter expression=".*.dao.*" type="regex">
    </context:include-filter></context:include-filter></context:include-filter></context:component-scan>
 
     <!-- 开启注解的功能 -->
     <!-- 启动支持 mvc 的注解,比如  @Controller, @RequestMapping 等--> 
    <mvc:annotation-driven>
    <!--<bean id="conversionService"-->
    <!--class="org.springframework.format.support.FormattingConversionServiceFactoryBean">-->
    <!--<property name="formatterRegistrars">-->
    <!--<bean class="com.jd.common.springmvc.converter.DefaultFormatterRegistrar"/>-->
    <!--</property>-->
    <!--</bean>-->
 
    <!-- 解决静态资源被拦截的问题 -->
    <mvc:default-servlet-handler>
 
    <!-- static resources -->
    <!--<mvc:resources location="/static/" mapping="/static/**" cache-period="864000"/>-->
    <!--<mvc:resources location="/js/" mapping="/js/**" cache-period="864000"/>-->
 
 
     <!-- 配置视图解析器,使得在JSP中能够使用完整的JSTL功能 -->
    <!-- 设置视图解析工具 --> 
    <!-- template view -->
    <bean class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer" id="freemarkerConfig">
        <property name="templateLoaderPath" value="/WEB-INF/views/">
        <property name="freemarkerSettings">
            <props>
                <prop key="template_update_delay">0</prop>
                <prop key="default_encoding">UTF-8</prop>
                <prop key="number_format">0.##########</prop>
                <prop key="datetime_format">yyyy-MM-dd HH:mm:ss</prop>
                <prop key="classic_compatible">true</prop>
                <prop key="template_exception_handler">ignore</prop>
            </props>
        </property>
    </property></bean>
    <bean class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver" id="freeMarkerViewResolver">
        <!--<property name="layoutUrl" value="layout/default.ftl"/>-->
        <property name="cache" value="false">
        <property name="suffix" value=".ftl">
        <property name="requestContextAttribute" value="request">
        <property name="exposeSpringMacroHelpers" value="true">
        <property name="exposeRequestAttributes" value="true">
        <property name="exposeSessionAttributes" value="true">
        <property name="contentType" value="text/html;charset=UTF-8">
    </property></property></property></property></property></property></property></bean>
 
    <bean class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">
        <property name="defaultContentType" value="text/html">
        <!-- not by accept header -->
        <property name="ignoreAcceptHeader" value="true">
        <!-- by extension -->
        <property name="mediaTypes"><map>
                <entry key="html" value="text/html">
                <entry key="xml" value="application/xml">
                <entry key="json" value="application/json">
            </entry></entry></entry></map>
        </property>
        <property name="viewResolvers">
            <list>
                <ref bean="freeMarkerViewResolver">
            </ref></list>
        </property>
        <property name="defaultViews">
            <list>
                <!-- for application/json -->
                <bean class="org.springframework.web.servlet.view.json.MappingJacksonJsonView">
            </bean></list>
        </property>
    </property></property></bean>
 
    <!-- locale related -->
    <!--<bean id="localeResolver" class="org.springframework.web.servlet.i18n.CookieLocaleResolver">-->
    <!--<property name="cookieName" value="_clientlocale"/>-->
    <!--<property name="defaultLocale" value="zh_CN"/>-->
    <!--<property name="cookieMaxAge" value="2147483647"/>-->
    <!--</bean>-->
    <bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping">
    <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
        <property name="messageConverters">
            <util:list id="beanList">
                <ref bean="mappingJacksonHttpMessageConverter">
            </ref></util:list>
        </property>
    </bean>
    <bean class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter" id="mappingJacksonHttpMessageConverter">
        <property name="supportedMediaTypes">
            <list>
                <value>text/html;charset=UTF-8</value>
            </list>
        </property>
    </bean>
 
</bean></mvc:default-servlet-handler></mvc:annotation-driven></beans>

spring-config.xml配置:

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<!--?xml version="1.0" encoding="UTF-8"?-->
       https://www.springframework.org/schema/beans/spring-beans-3.1.xsd
       https://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd">
 
 
    <!-- spring容器中最多只能定义一个context:property-placeholder spring中 context:property-placeholder
        导入多个独立的 .properties配置文件 Spring容器仅允许最多定义一个PropertyPlaceholderConfigurer(或<context:property-placeholder/>),其余的会被Spring忽略掉
        通配符解决 -->
    <!-- 引入项目配置文件 -->
    <!-- 加载db.properties文件中的内容,db.properties文件中的key要有一定的特殊规则 -->
    <context:property-placeholder location="classpath*:mycat.properties">
 
    <import resource="spring-config-mvc.xml">
 
    <!--文件中主要负责配置:加载db.properties、配置数据源、配置SqlSessionFactoryBean、Mapper扫描器-->
    <import resource="spring-config-db.xml">
 
</import></import></context:property-placeholder></beans>

暂时先到这里

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