ssm整合详解

使用SSM(Spring、SpringMVC和Mybatis)已经有三个多月了,项目在技术上已经没有什么难点了,基于现有的技术就可以实现想要的功能,当然肯定有很多可以改进的地方。之前没有记录SSM整合的过程,这次刚刚好基于自己的一个小项目重新搭建了一次,而且比项目搭建的要更好一些。以前解决问题的过程和方法并没有及时记录,以后在自己的小项目中遇到我再整理分享一下。这次,先说说三大框架整合过程。个人认为使用框架并不是很难,关键要理解其思想,这对于我们提高编程水平很有帮助。不过,如果用都不会,谈思想就变成纸上谈兵了!!!先技术,再思想。实践出真知。(可通过图片水印查看博客地址)

1、基本概念

 

1.1、Spring

 

 

        Spring是一个开源框架,Spring是于2003 年兴起的一个轻量级的Java 开发框架,由Rod Johnson 在其著作Expert One-On-One J2EE Development and Design中阐述的部分理念和原型衍生而来。它是为了解决企业应用开发的复杂性而创建的。Spring使用基本的JavaBean来完成以前只可能由EJB完成的事情。然而,Spring的用途不仅限于服务器端的开发。从简单性、可测试性和松耦合的角度而言,任何Java应用都可以从Spring中受益。 简单来说,Spring是一个轻量级的控制反转(IoC)和面向切面(AOP)的容器框架。

 

1.2、SpringMVC

 

     

        Spring MVC属于SpringFrameWork的后续产品,已经融合在Spring Web Flow里面。Spring MVC 分离了控制器、模型对象、分派器以及处理程序对象的角色,这种分离让它们更容易进行定制。

 

1.3、MyBatis

 

 

       MyBatis 本是apache的一个开源项目iBatis, 2010年这个项目由apache software foundation 迁移到了google code,并且改名为MyBatis 。MyBatis是一个基于Java的持久层框架。iBATIS提供的持久层框架包括SQL Maps和Data Access Objects(DAO)MyBatis 消除了几乎所有的JDBC代码和参数的手工设置以及结果集的检索。MyBatis 使用简单的 XML或注解用于配置和原始映射,将接口和 Java 的POJOs(Plain Old Java Objects,普通的 Java对象)映射成数据库中的记录。

 

 

2、开发环境搭建

 

 

 

如果需要,参看之前的博文:http://blog.csdn.net/zhshulin/article/details/30779873

 

 

3、Maven Web项目创建

 

 

如果需要,参看之前的博文:http://blog.csdn.net/zhshulin/article/details/37921705

 

4、SSM整合

 

      

        下面主要介绍三大框架的整合,至于环境的搭建以及项目的创建,参看上面的博文。这次整合我分了2个配置文件,分别是spring-mybatis.xml,包含spring和mybatis的配置文件,还有个是spring-mvc的配置文件,此外有2个资源文件:jdbc.propertis和log4j.properties。完整目录结构如下(最后附上源码下载地址,不建议直接使用源码,因为此教程已经有了全部代码):

4-1-1,导入Maven 需要的包

  pom.xml

 

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.csw</groupId>
    <artifactId>backend</artifactId>
    <version>1.0-SNAPSHOT</version>

    <!--打包-->
    <packaging>war</packaging>
    <!--设置编码-->
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
        <spring.version>5.1.0.RELEASE</spring.version>
    </properties>
    <!--引入文件-->
    <dependencies>
        <!-- Spring Web MVC -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <!-- servlet 系列的支持 -->
        <dependency>
            <groupId>javax</groupId>
            <artifactId>javaee-api</artifactId>
            <version>8.0</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>

        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper</artifactId>
            <version>5.1.7</version>
        </dependency>

        <!-- Springframework -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.9.1</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-validator -->
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-validator</artifactId>
            <version>6.0.3.Final</version>
        </dependency>


        <!-- MyBatis -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.4.6</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>1.3.2</version>
        </dependency>

        <!-- 数据库驱动以及数据库连接池-->
        <dependency>
            <groupId>org.mariadb.jdbc</groupId>
            <artifactId>mariadb-java-client</artifactId>
            <version>2.3.0</version>
        </dependency>
        <dependency>
            <groupId>com.mchange</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.5.2</version>
        </dependency>

        <!-- 日志框架 -->
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>

        <!-- 通用工具 -->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.9.7</version>
        </dependency>

        <!-- 单元测试 -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>${spring.version}</version>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>
    </dependencies>
    <build>
        <finalName>contact</finalName>
        <plugins>
            <plugin>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>1.3.7</version>
                <dependencies>
                    <dependency>
                        <groupId>org.mariadb.jdbc</groupId>
                        <artifactId>mariadb-java-client</artifactId>
                        <version>2.3.0</version>
                    </dependency>
                </dependencies>
            </plugin>
        </plugins>
    </build>
</project>

 

 

 

 

 

配置MyBatis

 generatorConfig.xml  配置这个文件的好处就是自动生成实体类、接口、映射文件,但是MyBatis自身佩戴的生成器有一个缺点,就是设计的不严谨,这个主要还是看个人选择了  手动  滑稽/滑稽/

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration
        PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
        "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">

<generatorConfiguration>

    <context id="xxx" targetRuntime="MyBatis3Simple">

        <commentGenerator>
            <property name="suppressDate" value="true" />
        </commentGenerator>
        <!-- 数据库连接 -->
        <jdbcConnection driverClass="org.mariadb.jdbc.Driver"
                        connectionURL="jdbc:mariadb://localhost/dogo"
                        userId="root" password="13794709305">
        </jdbcConnection>

        <!-- Model生成规则 -->
        <javaModelGenerator targetPackage="com.csw.entity" targetProject="src/main/java">
            <property name="trimStrings" value="true" />
        </javaModelGenerator>

        <sqlMapGenerator targetPackage="mapper"  targetProject="src/main/resources"/>
        <!-- dao 规则 -->
        <javaClientGenerator type="XMLMAPPER" targetPackage="com.csw.dao"  targetProject="src/main/java">
            <property name="enableSubPackages" value="true" />
        </javaClientGenerator>
        <table tableName="%">
            <generatedKey column="id" sqlStatement="Mysql"/>
        </table>
    </context>
</generatorConfiguration>

   jdbc.properties

jdbc.driver=org.mariadb.jdbc.Driver
jdbc.url=jdbc:mariadb://localhost:3306/maidanglao
jdbc.user=root
jdbc.password=13794709305

 log4j.properties

# Global logging configuration
log4j.rootLogger=ERROR, ooo

# MyBatis logging configuration...
log4j.logger.com.nf147.dao=DEBUG

# 规则1,名字为 ooo,向标准输出 System.err/out
log4j.appender.ooo=org.apache.log4j.ConsoleAppender
log4j.appender.ooo.layout=org.apache.log4j.PatternLayout
log4j.appender.ooo.layout.ConversionPattern=%5p [%t] ~ %m%n

# 规则2,输出为文件
log4j.appender.000=org.apache.log4j.FileAppender
log4j.appender.000.File=d:/log/log.out
log4j.appender.000.layout=org.apache.log4j.PatternLayout
log4j.appender.000.layout.conversionPattern=%m %n

# 规则3,输出到数据库
log4j.appender.o0o=org.apache.log4j.jdbc.JDBCAppender
log4j.appender.o0o.URL=jdbc:mariadb://localhost/dogo
log4j.appender.o0o.driver=org.mariadb.jdbc.Driver
log4j.appender.o0o.user=root
log4j.appender.o0o.password=13794709305
log4j.appender.o0o.layout=org.apache.log4j.PatternLayout
log4j.appender.o0o.sql=INSERT INTO LOGS VALUES('%t')

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>
    <settings>
        <!-- 使用jdbc的getGeneratedKeys获取数据库自增主键值 -->
        <setting name="useGeneratedKeys" value="true" />
        <!-- 使用列别名替换列名 默认:true -->
        <setting name="useColumnLabel" value="true" />
        <!-- 开启驼峰命名转换:Table {create_time} -> Entity {createTime} -->
        <setting name="mapUnderscoreToCamelCase" value="true" />
    </settings>

    <plugins>
        <plugin interceptor="com.github.pagehelper.PageInterceptor" />
    </plugins>
</configuration>

4-1-2配置Spring文件

spring-web.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:contxt="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/cache http://www.springframework.org/schema/cache/spring-cache.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <!--启用注解扫描-->
    <contxt:component-scan base-package="com.csw">
        <contxt:include-filter type="annotation" expression="org.springframework.stereotype.Controller" />
    </contxt:component-scan>

    <!--启用 mvc 的常用注解-->
    <mvc:annotation-driven validator="myValidator" />

    <!--将所有的静态资源交还 Servlet 处理-->
    <mvc:default-servlet-handler />

    <bean id="myValidator" class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean">
        <property name="providerClass" value="org.hibernate.validator.HibernateValidator" />
        <property name="validationMessageSource" ref="messageSource" />
    </bean>

    <bean id="themeSource" class="org.springframework.ui.context.support.ResourceBundleThemeSource">
        <property name="basenamePrefix" value="themes." /> <!-- 哪个文件夹里 -->
    </bean>
    <bean id="themeResolver" class="org.springframework.web.servlet.theme.SessionThemeResolver">
        <property name="defaultThemeName" value="girl" /> <!-- 默认主题文件的名字是 "可爱的小粉红",如果不设置,名为 theme -->
    </bean>


    <!--配置返回页面-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
        <property name="prefix" value="/WEB-INF/jsp/" />
        <property name="suffix" value=".jsp" />
    </bean>

    <!--配置上传下载-->
    <bean id="multipartResolver" class="org.springframework.web.multipart.support.StandardServletMultipartResolver" />
    <!--<bean id="multipartResolver2" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">-->
        <!--<property name="maxUploadSize" value="10240000" />-->
        <!--<property name="defaultEncoding" value="UTF-8" />-->
    <!--</bean>-->

</beans>

spring-dao.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:tx="http://www.springframework.org/schema/tx" 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/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

    <!--使用外部文件-->
    <context:property-placeholder location="classpath:jdbc.properties" />

    <context:component-scan base-package="com.csw.dao"/>
    <!--创建数据源-->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${jdbc.driver}" />
        <property name="jdbcUrl" value="${jdbc.url}" />
        <property name="user" value="${jdbc.user}" />
        <property name="password" value="${jdbc.password}" />

        <property name="maxPoolSize" value="30" />
        <property name="minPoolSize" value="10" />
        <property name="autoCommitOnClose" value="false" />
        <property name="checkoutTimeout" value="10000" />
        <property name="acquireRetryAttempts" value="2" />
    </bean>

    <!--配置 mybatis-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="typeAliasesPackage" value="com.csw.entity" />
        <property name="configLocation" value="classpath:mybatis-config.xml" />
        <property name="mapperLocations" value="classpath:mapper/*.xml" />
    </bean>

    <!--自动注入 Mapper-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
        <property name="basePackage" value="com.csw.dao" />
    </bean>

    <!--配置声明式事务管理-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource" />
    </bean>
    <tx:annotation-driven proxy-target-class="true" />

</beans>

spring-service.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:aop="http://www.springframework.org/schema/aop"
       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/aop http://www.springframework.org/schema/aop/spring-aop.xsd">

    <!--启用注解-->
    <context:component-scan base-package="com.csw">
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller" />
    </context:component-scan>

    <!-- 启用 aspectj 方式 AOP-->
    <aop:aspectj-autoproxy proxy-target-class="true"/>

</beans>

基本上整个ssm项目的结构就是这样了,第一次写博客,相信以后会越来越好的,蟹蟹大家的浏览。。

 

 

 

 

posted @ 2018-12-02 15:19  成胜文  阅读(1719)  评论(0编辑  收藏  举报