SSM综合配置文件【注解】

一：配置applicationContext.xml配置文件重点内容
1.写dbcp.properties文件（连接数据库信息）

2.添加spring和springMvc的各种约束

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

3.开启注解扫描

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

4.在配置文件中，加载jdbc.properties文件，并配置数据源（dbcp , c3p0 , jdbc …）
//这里我用的是dbcp数据源

    <context:property-placeholder location="classpath:jdbc.properties" />
    
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
        destroy-method="close">
        <property name="driverClassName" value="${jdbc.driverClassName}" />
        <property name="url" value="${jdbc.url}" />
        <property name="username" value="${jdbc.username}" />
        <property name="password" value="${jdbc.password}" />
    bean>

5.配置sqlSessionfactory（Mybatis）

    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource">property>
        
        <property name="typeAliasesPackage" value="com.ssm.bean">property>
        
        <property name="mapperLocations" value="classpath:com/ssm/mapper/*.xml">property>
    bean>

6.配置Mybatis的mapper接口

    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.ssm.mapper">property>
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory">property>
    bean>

7.配置事务管理和事务注解

    
    <bean id="transactionManager"
        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource">property>
    bean>

    
    <tx:annotation-driven transaction-manager="transactionManager" />

8.配置SpringMVC的试图解析器和注解（可分开配置）

    <bean
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp/">property>
        <property name="suffix" value=".jsp">property>
    bean>

    
    <mvc:annotation-driven/>

8.配置使用（可选）

    <mvc:default-servlet-handler/>

9.Date类型（可选）
定义一个类，实现Converter

public class CustomDateConverter implements Converter<String,Date>{

    @Override
    public Date convert(String source) {

        //实现 将日期串转成日期类型(格式是yyyy-MM-dd HH:mm:ss)
        if(!"".equals(source)){
            SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd");

            try {
                //转成直接返回
                return simpleDateFormat.parse(source);
            } catch (ParseException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }

        //如果参数绑定失败返回null
        return null;
    }

}

    <mvc:annotation-driven conversion-service="conversionService" />
    
    <bean id="conversionService" class="org.springframework.format.support.FormattingConversionServiceFactoryBean">
        
        <property name="converters">
            <list>
                
                <bean class="com.ssm.action.CustomDateConverter"/>
            list>
        property>
    bean>

二：web.xml
1.加载applicationContext配置文件和监听器

<context-param>
        <param-name>contextConfigLocationparam-name>
        <param-value>classpath:applicationContext.xmlparam-value>
    context-param>

    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
    listener>

2.配置springＭＶＣ的前端控制器

<servlet>
        <servlet-name>springmvcservlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
        <init-param>
            <param-name>contextConfigLocationparam-name>
            <param-value>classpath:applicationContext.xmlparam-value>
        init-param>
    servlet>

    <servlet-mapping>
        <servlet-name>springmvcservlet-name>
        <url-pattern>*.actionurl-pattern>
    servlet-mapping>

３.配置编码格式过滤器（乱码）

<filter>
        <filter-name>encodingfilter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>
        <init-param>
            <param-name>encodingparam-name>
            <param-value>utf-8param-value>
        init-param>
    filter>

    <filter-mapping>
        <filter-name>encodingfilter-name>
        <url-pattern>/*url-pattern>
    filter-mapping>