11分钟了解Spring及mybatis等xml常见配置
世界会向那些有目标和远见的人让路。
总所周知，在使用Spring、SpringMVC和mybatis开发时，往往要配置的文件信息太多了，自己敲的话太麻烦了，以下整理了关于了常见的配置信息，可直接复制粘贴修改使用就好啦。
1.web.xml :
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
id="WebApp_ID" version="3.1">
<!-- 欢迎页 -->
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<!-- 配置Spring -->
<context-param>
<param-name> contextConfigLocation </param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
<!-- 配置监听器 -->
<listener>
<listener-class> org.springframework.web.context.ContextLoaderListener </listener-class>
</listener>
<!-- 前端配置器 spring mvc-->
<servlet>
<servlet-name>dispatcher</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>dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- 中文处理过滤 -->
<filter>
<filter-name>Encoding</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>Encoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>2. applicationContext.xml:
<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"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.3.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">
<!-- 加载db.properties -->
<context:property-placeholder location="classpath:db.properties"/>
<!-- 加载log4j.properties -->
<context:property-placeholder location="classpath:log4j.properties" />
<!-- 配置数据源 -->
<bean id="datasource" class="org.apache.commons.dbcp2.BasicDataSource">
<property name="driverClassName" value="${jdbc.driver}"></property>
<property name="url" value="${jdbc.url}"></property>
<property name="username" value="${jdbc.username}"></property>
<property name="password" value="${jdbc.password}"></property>
<!-- 最大连接数 -->
<property name="maxTotal" value="${jdbc.maxTotal}"></property>
<!-- 最大空闲连接数 -->
<property name="maxIdle" value="${jdbc.maxIdle}"></property>
<!-- 初始化连接数 -->
<property name="initialSize" value="${jdbc.initialSize}"></property>
</bean>
<!-- 配置事务管理 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="datasource"/>
</bean>
<!-- 开启事务注解 -->
<tx:annotation-driven transaction-manager="transactionManager"/>
<!-- 配置 MyBatis的工厂 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 数据源 -->
<property name="dataSource" ref="datasource" />
<!-- 配置MyBatis的核心配置文件所在位置 -->
<property name="configLocation" value="classpath:mybatis-config.xml" />
</bean>
<!-- 配置Mapper 自动扫描器 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.dao"></property>
</bean>
<!-- 开启注解扫描com.service -->
<context:component-scan base-package="com.service"/>
</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>
<typeAliases>
<package name="com.po"/>
</typeAliases>
<mappers>
<mapper resource="com/dao/Userdao.xml"/>
</mappers>
</configuration>4.mybatis-mapper.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.mapper.StudentMapper">
<select id="findbyid" parameterType="Integer" resultMap="StudentResult">
select *from student where id=#{id}
</select>
</mapper>5.spring-mvc.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"
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/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<context:component-scan base-package="com.controller"></context:component-scan>
<!--<bean name="/index" class="com.controller.Controller1 "/>-->
<!-- 定义视图 -->
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
<!-- 配置注解驱动
自动注册org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping
和org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter -->
<mvc:annotation-driven />
<!-- 配置静态资源的访问映射 使其不被前端控制器拦截 -->
<mvc:resources location="/js/" mapping="/js/**" />
<!-- 使用使用默认的服务器请求处理器自动判断筛选 -->
<!-- <mvc:default-servlet-handler/> -->
<!-- 配置拦截器 -->
<mvc:interceptors>
<!-- 全局拦截器 -->
<!--<bean class="" /> -->
<mvc:interceptor>
<mvc:mapping path="/**"/> <!-- 配置拦截器作用的路径 -->
<mvc:exclude-mapping path=""/> <!-- 配置拦截器不作用的路径 -->
<bean class="com.interceptor.LoginInterceptor"></bean>
</mvc:interceptor>
</mvc:interceptors>
<!-- 配置文件上传解析器 multipartResolver -->
<!-- 因为CommonsMultipartResolver内部是引用MultipartResolver字符串来完成文件解析 所以指定的ID必须为multipartResolver -->
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<!-- 配置缓存中最大阈值 低于此值，只保留在内存里，超过此阈值，生成硬盘上的临时文件 -->
<property name="maxInMemorySize" value="" />
<!-- 推迟文件解析 -->
<property name="resolveLazily" value=""/>
<!-- 允许文件上传的最大尺寸 -->
<property name="maxUploadSize" value="10485760" />
<!-- 默认编码格式 -->
<property name="defaultEncoding" value="UTF-8" />
</bean>
<!-- 显示装配的自定义的转换器 -->
<!-- <mvc:annotation-driven conversion-service="conversionservice1"></mvc:annotation-driven> -->
<!-- 自定义类型转换器配置 converters-->
<!-- <bean id="conversionservice1" class="org.springframework.context.support.ConversionServiceFactoryBean">
<property name="converters">
<set>
<bean class="com.converter.DateConverter"></bean>
</set>
</property>
</bean> -->
<!-- 自定义类型转换器配置formatters-->
<!-- <bean id="conversionservice2" class="org.springframework.format.support.FormattingConversionServiceFactoryBean">
<property name="formatters">
<set>
<bean class="com.converter.DateFormatter"></bean>
</set>
</property>
</bean> -->
</beans>6.db.properties
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/test1
jdbc.username=root
jdbc.password=123456
jdbc.maxTotal=30
jdbc.maxIdle=10
jdbc.initialSize=57.log4j.properties
# Global logging configuration
log4j.rootLogger=ERROR, stdout
# MyBatis logging configuration...
log4j.logger.com=DEBUG
# Console output...
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n
