SpringMVC,Mybatis,FreeMarker连接mycat示例(一)
- 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' ?--> <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 ${offset} </select> </mapper> |
spring-config-db.xml配置:
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<!--?xml version= "1.0" encoding= "UTF-8" ?--> <beans xmlns= "https://www.springframework.org/schema/beans" xmlns:aop= "https://www.springframework.org/schema/aop" xmlns:tx= "https://www.springframework.org/schema/tx" xmlns:xsi= "https://www.w3.org/2001/XMLSchema-instance" xsi:schemalocation="https://www.springframework.org/schema/beans https: //www.springframework.org/schema/beans/spring-beans-3.1.xsd https: //www.springframework.org/schema/tx https: //www.springframework.org/schema/tx/spring-tx.xsd https: //www.springframework.org/schema/aop https: //www.springframework.org/schema/aop/spring-aop.xsd"> <!-- 配置Mybatis会话工厂 --> <bean class = "org.mybatis.spring.SqlSessionFactoryBean" id= "sqlSessionFactory" > <!-- 注入DataSource --> <!-- 数据源 --> <property name= "dataSource" ref= "druidDataSource" > <!-- 需要加载的mapper.xml,该bean被创建后,会自动加载这些文件。 --> <property name= "mapperLocations" > <list> <!-- 自动匹配Mapper映射文件 --> <value>classpath*:sqlmap/*Mapper.xml</value> </list> </property> </property></bean> <bean class = "org.mybatis.spring.SqlSessionTemplate" id= "sqlSession" > <constructor-arg ref= "sqlSessionFactory" > </constructor-arg></bean> <!-- Druid集连接池,首先spring配置DataSource --> <bean class = "com.alibaba.druid.pool.DruidDataSource" destroy-method= "close" id= "druidDataSource" init-method= "init" > <property name= "driverClassName" value= "${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 10 秒 10000 --> <!-- <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 --> <beans xmlns= "https://www.springframework.org/schema/beans" xmlns:context= "https://www.springframework.org/schema/context" xmlns:mvc= "https://www.springframework.org/schema/mvc" xmlns:util= "https://www.springframework.org/schema/util" xmlns:xsi= "https://www.w3.org/2001/XMLSchema-instance" xsi:schemalocation=" 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" ?--> <beans xmlns= "https://www.springframework.org/schema/beans" xmlns:context= "https://www.springframework.org/schema/context" xmlns:xsi= "https://www.w3.org/2001/XMLSchema-instance" xsi:schemalocation="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.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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