Eclipse+Spring+SpringMVC+Mybatis+Maven+多库配置+resin

1：首先在Eclipse中搭建maven环境

       这里别人教程中已经有现成：点击打开链接

2：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"  xsi:schemaLocation="http://java.sun.com/xml/ns/javaee  http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">  <display-name>ProjectName</display-name>  <context-param>    <param-name>contextConfigLocation</param-name>    <param-value>classpath:spring.xml,classpath:spring-mybatis.xml</param-value>  </context-param>  <filter>    <filter-name>encodingFilter</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>encodingFilter</filter-name>    <url-pattern>/*</url-pattern>  </filter-mapping>  <listener>    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>  </listener>  <listener>    <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>  </listener>  <servlet>    <description>spring mvc servlet</description>    <servlet-name>rest</servlet-name>    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>    <init-param>      <param-name>contextConfigLocation</param-name>      <param-value>classpath:spring-mvc.xml</param-value>    </init-param>    <load-on-startup>1</load-on-startup>  </servlet>  <servlet-mapping>    <servlet-name>rest</servlet-name>    <url-pattern>/</url-pattern>  </servlet-mapping>  <session-config>    <session-timeout>30</session-timeout>  </session-config>  <welcome-file-list>    <welcome-file>index.jsp</welcome-file>  </welcome-file-list></web-app>

3:配置spring.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:context="http://www.springframework.org/schema/context"xsi:schemaLocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans-4.1.xsdhttp://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context-4.1.xsd"><!--自动扫描含有@Service将其注入为bean --><context:component-scan base-package="com.tom.test.service"/></beans>

4：配置springmvc-mybatis.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:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:tx="http://www.springframework.org/schema/tx"xmlns:aop="http://www.springframework.org/schema/aop" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.1.xsd                http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsd                http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd                http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.1.xsd            http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.1.xsd "><!--引入配置属性文件 --><context:property-placeholder location="classpath:config.properties" /><!-- 配置数据源 使用的是Druid数据源 --><bean name="dataSource" class="com.alibaba.druid.pool.DruidDataSource"init-method="init" destroy-method="close"><property name="url" value="${jdbc.url}" /><property name="username" value="${jdbc.username}" /><property name="password" value="${jdbc.password}" /><!-- 初始化连接大小 --><property name="initialSize" value="0" /><!-- 连接池最大使用连接数量 --><property name="maxActive" value="20" /><!-- 连接池最小空闲 --><property name="minIdle" value="0" /><!-- 获取连接最大等待时间 --><property name="maxWait" value="60000" /><property name="poolPreparedStatements" value="true" /><property name="maxPoolPreparedStatementPerConnectionSize"value="33" /><!-- 用来检测有效sql --><property name="validationQuery" value="${validationQuery}" /><property name="testOnBorrow" value="false" /><property name="testOnReturn" value="false" /><property name="testWhileIdle" value="true" /><!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 --><property name="timeBetweenEvictionRunsMillis" value="60000" /><!-- 配置一个连接在池中最小生存的时间，单位是毫秒 --><property name="minEvictableIdleTimeMillis" value="25200000" /><!-- 打开removeAbandoned功能 --><property name="removeAbandoned" value="true" /><!-- 1800秒，也就是30分钟 --><property name="removeAbandonedTimeout" value="1800" /><!-- 关闭abanded连接时输出错误日志 --><property name="logAbandoned" value="true" /><!-- 监控数据库 --><property name="filters" value="mergeStat" /></bean><!-- myBatis文件 --><bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"><property name="dataSource" ref="dataSource" /><!-- 自动扫描entity目录, 省掉Configuration.xml里的手工配置 --><property name="mapperLocations" value="classpath:com/tom/test/mapper/*.xml" /></bean><bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"><!-- 扫描com.tom.test.dao这个包以及它的子包下的所有映射接口类 --><property name="basePackage" value="com.tom.test.mapper" /><property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" /></bean><!-- 配置事务管理器 --><bean id="transactionManager"class="org.springframework.jdbc.datasource.DataSourceTransactionManager"><property name="dataSource" ref="dataSource" /></bean><!-- 注解方式配置事物 --><!-- <tx:annotation-driven transaction-manager="transactionManager" /> --><!-- 拦截器方式配置事物 --><tx:advice id="transactionAdvice" transaction-manager="transactionManager"><tx:attributes><tx:method name="insert*" propagation="REQUIRED" /><tx:method name="update*" propagation="REQUIRED" /><tx:method name="delete*" propagation="REQUIRED" /><tx:method name="get*" propagation="SUPPORTS" read-only="true" /><tx:method name="find*" propagation="SUPPORTS" read-only="true" /><tx:method name="select*" propagation="SUPPORTS" read-only="true" /></tx:attributes></tx:advice><!-- Spring aop事务管理 --><aop:config><aop:pointcut id="transactionPointcut"expression="execution(* com.tom.test.service.impl.*.*(..))" /><aop:advisor pointcut-ref="transactionPointcut"advice-ref="transactionAdvice" /></aop:config></beans>

5:配置config.properties

#mysql version database druid settingvalidationQuery=SELECT 1jdbc.urlr=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf-8jdbc.username=rootjdbc.password=root

6:下载resin     点击打开链接  

        

     点击setup.exe安装，安装完成之后点击resin.exe启动，在浏览器中输入localhost:8080如下：

             

      点击/resin-admin 进入下图，首次进入时可以注册用户和密码

        

        注册完之后，从新登陆点击submit就可以进入首页啦，进入左下角的webapp 就可以正常访问了。

           

       后来因为我的Eclipse有点问题就换使用myeclipse了然后再引入Resin

         

      之后的部署就如同tomcat一般了

7：配置log4j.properties

### set log levels ###log4j.rootLogger = INFO , C , D , E ### console ###log4j.appender.C = org.apache.log4j.ConsoleAppenderlog4j.appender.C.Target = System.outlog4j.appender.C.layout = org.apache.log4j.PatternLayoutlog4j.appender.C.layout.ConversionPattern = [PKGame][%p] [%-d{yyyy-MM-dd HH:mm:ss}] %C.%M(%L) | %m%n### log file ###log4j.appender.D = org.apache.log4j.DailyRollingFileAppenderlog4j.appender.D.File = ../logs/PKGame.loglog4j.appender.D.Append = truelog4j.appender.D.Threshold = INFO log4j.appender.D.layout = org.apache.log4j.PatternLayoutlog4j.appender.D.layout.ConversionPattern = [PKGame][%p] [%-d{yyyy-MM-dd HH:mm:ss}] %C.%M(%L) | %m%n### exception ###log4j.appender.E = org.apache.log4j.DailyRollingFileAppenderlog4j.appender.E.File = ../logs/PKGame_error.log log4j.appender.E.Append = truelog4j.appender.E.Threshold = ERROR log4j.appender.E.layout = org.apache.log4j.PatternLayoutlog4j.appender.E.layout.ConversionPattern = [PKGame][%p] [%-d{yyyy-MM-dd HH:mm:ss}] %C.%M(%L) | %m%n

    整体结构如图：

     

     另外如果是想配置多库呢就修改一下spring-mybatis.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:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:tx="http://www.springframework.org/schema/tx"xmlns:aop="http://www.springframework.org/schema/aop" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.1.xsd                http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsd                http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd                http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.1.xsd            http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.1.xsd "><!--引入配置属性文件 --><context:property-placeholder location="classpath:config.properties" /><!-- 配置读写数据源 使用的是Druid数据源 --><bean name="dataSourceRW" class="com.alibaba.druid.pool.DruidDataSource"init-method="init" destroy-method="close"><property name="url" value="${jdbc.urlmaster}" /><property name="username" value="${jdbc.username}" /><property name="password" value="${jdbc.password}" /><!-- 初始化连接大小 --><property name="initialSize" value="0" /><!-- 连接池最大使用连接数量 --><property name="maxActive" value="20" /><!-- 连接池最小空闲 --><property name="minIdle" value="0" /><!-- 获取连接最大等待时间 --><property name="maxWait" value="60000" /><property name="poolPreparedStatements" value="true" /><property name="maxPoolPreparedStatementPerConnectionSize"value="33" /><!-- 用来检测有效sql --><property name="validationQuery" value="${validationQuery}" /><property name="testOnBorrow" value="false" /><property name="testOnReturn" value="false" /><property name="testWhileIdle" value="true" /><!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 --><property name="timeBetweenEvictionRunsMillis" value="60000" /><!-- 配置一个连接在池中最小生存的时间，单位是毫秒 --><property name="minEvictableIdleTimeMillis" value="25200000" /><!-- 打开removeAbandoned功能 --><property name="removeAbandoned" value="true" /><!-- 1800秒，也就是30分钟 --><property name="removeAbandonedTimeout" value="1800" /><!-- 关闭abanded连接时输出错误日志 --><property name="logAbandoned" value="true" /><!-- 监控数据库 --><property name="filters" value="mergeStat" /></bean><!-- 配置读数据源 使用的是Druid数据源 --><bean name="dataSourceR" class="com.alibaba.druid.pool.DruidDataSource"init-method="init" destroy-method="close"><property name="url" value="${jdbc.urlslaver}" /><property name="username" value="${jdbc.username}" /><property name="password" value="${jdbc.password}" /><!-- 初始化连接大小 --><property name="initialSize" value="0" /><!-- 连接池最大使用连接数量 --><property name="maxActive" value="20" /><!-- 连接池最小空闲 --><property name="minIdle" value="0" /><!-- 获取连接最大等待时间 --><property name="maxWait" value="60000" /><property name="poolPreparedStatements" value="true" /><property name="maxPoolPreparedStatementPerConnectionSize"value="33" /><!-- 用来检测有效sql --><property name="validationQuery" value="${validationQuery}" /><property name="testOnBorrow" value="false" /><property name="testOnReturn" value="false" /><property name="testWhileIdle" value="true" /><!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 --><property name="timeBetweenEvictionRunsMillis" value="60000" /><!-- 配置一个连接在池中最小生存的时间，单位是毫秒 --><property name="minEvictableIdleTimeMillis" value="25200000" /><!-- 打开removeAbandoned功能 --><property name="removeAbandoned" value="true" /><!-- 1800秒，也就是30分钟 --><property name="removeAbandonedTimeout" value="1800" /><!-- 关闭abanded连接时输出错误日志 --><property name="logAbandoned" value="true" /><!-- 监控数据库 --><property name="filters" value="mergeStat" /></bean><!-- 动态数据源 -->     <bean id="dynamicDataSource" class="com.tom.test.datasource.DynamicDataSource">         <!-- 通过key-value关联数据源 -->         <property name="targetDataSources">             <map>                 <entry value-ref="dataSourceRW" key="dataSourceKeyRW"></entry>                 <entry value-ref="dataSourceR" key="dataSourceKeyR"></entry>             </map>         </property>         <property name="defaultTargetDataSource" ref="dataSourceRW" />         </bean>  <!-- myBatis文件 --><bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"><property name="dataSource" ref="dynamicDataSource" /><!-- 自动扫描entity目录, 省掉Configuration.xml里的手工配置 --><property name="mapperLocations" value="classpath:com/tom/test/mapper/*.xml" /></bean><bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"><!-- 扫描com.tom.test.mapper这个包以及它的子包下的所有映射接口类 --><property name="basePackage" value="com.tom.test.mapper" /><property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" /></bean><!-- 配置事务管理器 --><bean id="transactionManager"class="org.springframework.jdbc.datasource.DataSourceTransactionManager"><property name="dataSource" ref="dynamicDataSource" /></bean><!-- 注解方式配置事物 --><!-- <tx:annotation-driven transaction-manager="transactionManager" /> --><!-- 拦截器方式配置事物 --><tx:advice id="transactionAdvice" transaction-manager="transactionManager"><tx:attributes><tx:method name="insert*" propagation="REQUIRED" /><tx:method name="update*" propagation="REQUIRED" /><tx:method name="delete*" propagation="REQUIRED" /><tx:method name="get*" propagation="SUPPORTS" read-only="true" /><tx:method name="find*" propagation="SUPPORTS" read-only="true" /><tx:method name="select*" propagation="SUPPORTS" read-only="true" /></tx:attributes></tx:advice><!-- Spring aop事务管理 --><aop:config><aop:pointcut id="transactionPointcut"expression="execution(* com.tom.test.service.impl.*.*(..))" /><aop:advisor pointcut-ref="transactionPointcut"advice-ref="transactionAdvice" /></aop:config></beans>

  配置两个数据源一个读一个写，并且配置动态数据源进行指定，并且编写如下两个处理类。

package com.tom.test.datasource;public class DBContextHolder {      /**      * 线程threadlocal      */      private static ThreadLocal<String> contextHolder = new ThreadLocal<>();      public static  String DB_TYPE_RW = "dataSourceKeyRW";      public static  String DB_TYPE_R = "dataSourceKeyR";      public static String getDbType() {          String db = contextHolder.get();          if (db == null) {              db = DB_TYPE_RW;// 默认是读写库          }          return db;      }      public static void setDbType(String str) {          contextHolder.set(str);      }      public static void clearDBType() {          contextHolder.remove();      }  }  

package com.tom.test.datasource;import org.springframework.jdbc.datasource.lookup.AbstractRoutingDataSource;public class DynamicDataSource extends AbstractRoutingDataSource {@Overrideprotected Object determineCurrentLookupKey() {System.out.println("当前数据源为: "+DBContextHolder.getDbType());return DBContextHolder.getDbType();}      }  

    然后再service层进行动态指定数据源

     最后附上pom.xml如下：

       

<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/xsd/maven-4.0.0.xsd">  <modelVersion>4.0.0</modelVersion>  <groupId>com.tom.pk</groupId>  <artifactId>ProjectName</artifactId>  <version>0.0.1-SNAPSHOT</version>  <packaging>war</packaging>     <name>ProjectName</name>        <url>http://maven.apache.org</url>       <properties><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><spring.version>4.1.4.RELEASE</spring.version><jackson.version>2.5.0</jackson.version></properties><dependencies><dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>4.12</version><scope>test</scope></dependency><!-- spring --><dependency><groupId>org.springframework</groupId><artifactId>spring-core</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-beans</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-context</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-tx</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-web</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-webmvc</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-jdbc</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-test</artifactId><version>${spring.version}</version><scope>test</scope></dependency><!-- mybatis 包 --><dependency><groupId>org.mybatis</groupId><artifactId>mybatis</artifactId><version>3.2.8</version></dependency><!--mybatis spring 插件 --><dependency><groupId>org.mybatis</groupId><artifactId>mybatis-spring</artifactId><version>1.2.2</version></dependency><!-- mysql连接 --><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>5.1.34</version></dependency><!-- 数据源 --><dependency><groupId>com.alibaba</groupId><artifactId>druid</artifactId><version>1.0.12</version></dependency><dependency><groupId>org.aspectj</groupId><artifactId>aspectjweaver</artifactId><version>1.8.4</version></dependency><!-- log4j --><dependency><groupId>log4j</groupId><artifactId>log4j</artifactId><version>1.2.17</version></dependency><!-- jsp&&servlet --> <dependency><groupId>javax.servlet</groupId><artifactId>jstl</artifactId><version>1.2</version></dependency><dependency><groupId>taglibs</groupId><artifactId>standard</artifactId><version>1.1.2</version></dependency><!-- json --><dependency><groupId>org.codehaus.jackson</groupId><artifactId>jackson-mapper-asl</artifactId><version>1.9.13</version></dependency><dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId><version>1.2.3</version></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-annotations</artifactId><version>${jackson.version}</version></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-core</artifactId><version>${jackson.version}</version></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-databind</artifactId><version>${jackson.version}</version></dependency><!-- 文件上传 --><dependency><groupId>commons-io</groupId><artifactId>commons-io</artifactId><version>2.4</version></dependency><dependency><groupId>commons-fileupload</groupId><artifactId>commons-fileupload</artifactId><version>1.2.2</version></dependency><!-- tomcat --><dependency>    <groupId>org.apache.tomcat</groupId>    <artifactId>servlet-api</artifactId>    <version>6.0.29</version>    <scope>provided</scope></dependency></dependencies>      <build>          <finalName>PKGame</finalName>          <plugins>         <plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-surefire-plugin</artifactId><version>2.4.2</version><configuration><skipTests>true</skipTests></configuration></plugin>              <plugin>        <artifactId>maven-compiler-plugin</artifactId>        <version>2.3.2</version>        <configuration>          <source>1.7</source>          <target>1.7</target>        </configuration>      </plugin>      <plugin>        <artifactId>maven-war-plugin</artifactId>        <version>2.2</version>        <configuration>          <version>3.1</version>          <failOnMissingWebXml>false</failOnMissingWebXml>        </configuration>      </plugin>       <plugin>    <groupId>org.apache.tomcat.maven</groupId>          <artifactId>tomcat7-maven-plugin</artifactId>          <version>2.2</version>          <configuration>                    <server>ProjectName</server>                    <port>8082</port>                    <url>http://localhost:8082/</url><!--端口号-->                    <path>/ProjectName</path>                    <warSourceDirectory>src/main/webapp</warSourceDirectory>           </configuration></plugin>         </plugins>        </build>      </project>  <span style="color:#FF0000;">     由于MyBatis属于一种半自动的ORM框架，所以主要的工作将是书写Mapping映射文件，但是由于手写映射文件很容易出错，所以查资料发现有现成的工具（generator）可以自动生成底层模型类、Dao接口类甚至Mapping映射文件

       以上就可以实现基本的读写分离，以前总是看别人写博客，从别人身上学习到那么多，我觉得我也应该把我所知道拿出来与大家分享，带着感恩的心第一次写博客，其中有很多地方也是借鉴其他博主的文章，在这里表示由衷的感谢！希望以后可以多和大家切磋交流，争取越做越好！