常用xml模板

c3p0配置文件

1. 文件名必须是：c3p0-config.xml
2. 配置文件路径：放在src目录下
3. 创建数据源的方式有两种
   1. 默认配置方式：在不指定配置名字的情况下使用默认配置创建数据源
   2. 命名配置方式：通过名字来使用指定配置创建数据源

<c3p0-config>
  
  <default-config>
    <property name="driverClass">com.mysql.jdbc.Driverproperty>
    <property name="jdbcUrl">jdbc:mysql://localhost:3306/KkaBumproperty>
    <property name="user">rootproperty>
    <property name="password">rootproperty>
    
    <property name="initialPoolSize">5property>
    <property name="maxPoolSize">10property>
    <property name="checkoutTimeout">3000property>
  default-config>
  
  <named-config name="otherc3p0"> 
  named-config>
c3p0-config>

<c3p0-config>
    
    <default-config>
        
        <property name="driverClass">com.mysql.jdbc.Driverproperty>
        
        <property name="jdbcUrl">jdbc:mysql://localhost:3306/KkaBumproperty>
        
        <property name="user">rootproperty>
        
        <property name="password">rootproperty>

        
        
        <property name="initialPoolSize">5property>
        
        <property name="maxPoolSize">10property>
        
        <property name="checkoutTimeout">3000property>
    default-config>

    
    <named-config name="otherc3p0">
        
        <property name="driverClass">com.mysql.jdbc.Driverproperty>
        
        <property name="jdbcUrl">jdbc:mysql://localhost:3306/KkaBumproperty>
        
        <property name="user">rootproperty>
        
        <property name="password">rootproperty>

        
        
        <property name="initialPoolSize">5property>
        
        <property name="maxPoolSize">15property>
        
        <property name="checkoutTimeout">3000property>
    named-config>
c3p0-config>

mybatis

mybatis核心配置文件：mybatis-Config.xml

<configuration>

    <environments default="default">
        
        <environment id="default">
            
            <transactionManager type="JDBC"/>
            
            <dataSource type="POOLED">
                <property name="driver" value="com.mysql.jdbc.Driver"/>
                <property name="url" value="jdbc:mysql://localhost:3306/KkaBum"/>
                <property name="username" value="root"/>
                <property name="password" value="root"/>
            dataSource>
        environment>
        
        <environment id="test">
            
            <transactionManager type="JDBC"/>
            
            <dataSource type="POOLED">
                <property name="driver" value="com.mysql.jdbc.Driver"/>
                <property name="url" value="jdbc:mysql://localhost:3306/KkaBum"/>
                <property name="username" value="root"/>
                <property name="password" value="root"/>
            dataSource>
        environment>
    environments>

    
    <mappers>
        
        <mapper resource="com/KkaBum/dao/UserMapper.xml"/>
    mappers>
configuration>

接口映射文件(xxxMapper.xml)

<mapper namespace="">
    
   

mapper>

日志文件(log4j.properties)

### 设置Logger输出级别和输出目的地 ###
log4j.rootLogger=debug, stdout

### 把日志信息输出到控制台 ###
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.SimpleLayout

jdbc.properties

driver=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3306/KkaBum?characterEncoding=utf8
username=root
password=root

Spring

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"
       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">

    

    
    <context:component-scan base-package="com.KkaBum">context:component-scan>

beans>

springmvc.xml

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
       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/mvc 
        http://www.springframework.org/schema/mvc/spring-mvc.xsd
        http://www.springframework.org/schema/context 
        http://www.springframework.org/schema/context/spring-context.xsd">


    
    <context:component-scan base-package="com.KkaBum.controller">context:component-scan>

 
beans>

log4j.properties

### direct log messages to stdout ###
### 输出源的配置 语法  log4j.appender.输出源的名字=输出源的实现类 ###
### log4j.appender.输出源的名字.属性=属性值   ###
log4j.appender.a=org.apache.log4j.ConsoleAppender
log4j.appender.a.Target=System.out
log4j.appender.a.layout=org.apache.log4j.PatternLayout
log4j.appender.a.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss,SSS} [%t] [%c]-[%p] %m%n

### direct messages to file mylog.log ###
log4j.appender.file=org.apache.log4j.FileAppender
log4j.appender.file.File=/home/travel.log
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss,SSS} [%t] [%c]-[%p] %m%n

### set log levels - for more verbose logging change 'info' to 'debug' ###
### 日志记录器的配置，固定语法  log4j.rootLogger=输出级别， 输出源，输出源...  ###
log4j.rootLogger=debug, a,file

log4j.properties

### direct log messages to stdout ###
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.err
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n

### direct messages to file mylog.log ###
log4j.appender.file=org.apache.log4j.FileAppender
log4j.appender.file.File=c:\\mylog.log
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n

### set log levels - for more verbose logging change 'info' to 'debug' ###

log4j.rootLogger=debug, stdout