Java开发之ssm三大框架整合（SSM框架整合）

目录1.springmvc2.spring-dao.xml与mybatis-config.xml3.spring-service.xml4.引用

1.springmvc

和只有spring-mvc时一样，web.xml spring-mvc.xml

spring-mvc.xml

xmlns:xsi="http://w3.org/2001/XMLSchema-instance"

xmlns:context="http://springframework.org/schema/context"

xmlns:mvc="http://springframework.org/schema/cache"

xsi:schemaLocation="http://springframework.org/schema/beans http://springframework.org/schema/beans/spring-beans.xsd http://springframework.org/schema/context https://springframework.org/schema/context/spring-context.xsd http://springframework.org/schema/cache http://springframework.org/schema/cache/spring-cache.xsd">

xmlns:xsi="http://w3.org/2001/XMLSchema-instance"

xmlns:context="http://springframework.org/schema/context"

xmlns:mvc="http://springframework.org/schema/cache"

xsi:schemaLocation="http://springframework.org/schema/beans http://springframework.org/schema/beans/spring-beans.xsd http://springframework.org/schema/context https://springframework.org/schema/context/spring-context.xsd http://springframework.org/schema/cache http://springframework.org/schema/cache/spring-cache.xsd">

web.xml

xmlns:xsi="http://w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"

version="4.0">

paramencoding

org.springframework.web.filter.CharacterEncodingFilter

encoding

utf-8

forceResponseEncoding

true

paramencoding

/*

all

/

all

org.springframework.web.servlet.DispatcherServlet

contextConfigLocation

classpath:Spring-springmvc.xml

hiddenHttpMethodFilter

org.springframework.web.filter.HiddenHttpMethodFilter

hiddenHttpMethodFilter

/*

xmlns:xsi="http://w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"

version="4.0">

paramencoding

org.springframework.web.filter.CharacterEncodingFilter

encoding

utf-8

forceResponseEncoding

true

paramencoding

/*

all

/

all

org.springframework.web.servlet.DispatcherServlet

contextConfigLocation

classpath:Spring-springmvc.xml

hiddenHttpMethodFilter

org.springframework.web.filter.HiddenHttpMethodFilter

hiddenHttpMethodFilter

/*

2.spring-dao.xml与mybatis-config.xml

主要就是spring整合mybatis

spring整合mybatis

在上面的基础上，去掉成接口的实现类了，需要配置dao接口扫描包，我的理解是这个dao接口扫描包中有datasource，有mapper的扫描范围, 它会自动生成这些接口对应的mapper,并将接口的mapper放到xml文件中，所以在spring-service中，直接

引用即可

xmlns:xsi="http://w3.org/2001/XMLSchema-instance"

xmlns:context="http://springframework.org/schema/context"

xsi:schemaLocation="http://springframework.org/schema/beans

http://springframework.org/schema/beans/spring-beans.xsd

http://springframework.org/schema/context

https://springframwork.org/schema/context/spring-context.xsd">

xmlns:xsi="http://w3.org/2001/XMLSchema-instance"

xmlns:context="http://springframework.org/schema/context"

xsi:schemaLocation="http://springframework.org/schema/beans

http://springframework.org/schema/beans/spring-beans.xsd

http://springframework.org/schema/context

https://springframwork.org/schema/context/spring-context.xsd">

mybatis-config.xml 详细在上面的mybatis整合spring的文章中，它做两件事，配置映射文件路径，配置接口扫描范围，它被import到 spring-dao.xml中。

PUBLIC "-//mybatis.org//DTD Config 3.0//EN"

"http://mybatis.org/dtd/mybatis-3-config.dtd">

3.spring-service.xml

在这个文件中要进行事务的处理（事务本来就应该是在service层），要将service层的类全部放到ioc容器中，然后这些类中因为调用了dao层的类，然后因为刚才第二部配置了接口扫描包，直接ref获取mapper即可

xmlns:xsi="http://w3.org/2001/XMLSchema-instance"

xmlns:context="http://springframework.org/schema/context"

xsi:schemaLocation="http://springframework.org/schema/beans

http://springframework.org/schema/beans/spring-beans.xsd

http://springframework.oBhKJqiTrg/schema/context

https://springframwork.org/schema/context/spring-context.xsd">

xmlns:xsi="http://w3.org/2001/XMLSchema-instance"

xmlns:context="http://springframework.org/schema/context"

xsi:schemaLocation="http://springframework.org/schema/beans

http://springframework.org/schema/beans/spring-beans.xsd

http://springframework.oBhKJqiTrg/schema/context

https://springframwork.org/schema/context/spring-context.xsd">

4.引用

将这些文件的引用放到一个大的xml文件中，这个文件只放引用，这样就很容易看

xmlns:xsi="http://w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://springframework.org/schema/beans

http://springframework.org/schema/beans/spring-beans.xsd">

xmlns:xsi="http://w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://springframework.org/schema/beans

http://springframework.org/schema/beans/spring-beans.xsd">

或者在project structure中设置 spring application context，效果是一样的

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