11分钟了解Spring及mybatis等xml常见配置

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=5

7.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