SSM整合（一）
技术点
1.基础框架-ssm （SpringMVC +Spring +MyBatis）
2.数据库MySqQL
3.前端框架-bootstrap快速搭建简洁美观的界面
4.项目的依赖管理-Maven
5.分页-pagehelper
6.逆向工程-MyBatis Generator
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基础环境搭建
1.创建一个maven工程
2.引入项目依赖的jar包
spring
springmvc
mybatis
数据库连接池，驱动包
其他（jstl，servlet-api，junit）
3.引入bootstrap前端框架
4.编写ssm整合的关键配置文件
web.xml，spring,springmvc,mybatis
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1、修改settings.xml
这下面是阿里巴巴的仓库。这样下载jar包会比较快
<mirrors> <!-- mirror | Specifies a repository mirror site to use instead of a given repository. The repository that | this mirror serves has an ID that matches the mirrorOf element of this mirror. IDs are used | for inheritance and direct lookup purposes, and must be unique across the set of mirrors. | --> <mirror> <id>alimaven</id> <name>aliyun maven</name> <url>http://maven.aliyun.com/nexus/content/groups/public/</url> <mirrorOf>central</mirrorOf> </mirror> </mirrors>
在profiles中加入jdk的版本，这样编译时就不会报一些莫名其妙的错误
<profiles> <profile> <id>jdk-1.7</id> <activation> <activeByDefault>true</activeByDefault> <jdk>1.7</jdk> </activation> <properties> <maven.compiler.source>1.7</maven.compiler.source> <maven.compiler.target>1.7</maven.compiler.target> <maven.compiler.compilerVersion>1.7</maven.compiler.compilerVersion> </properties> </profile> </profiles>
依赖包pom.xml：
查找jar包的时候自己注意下。查的哪个下面的。得找对了
2、引入jar包
<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/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.dotcore</groupId> <artifactId>ssm</artifactId> <packaging>war</packaging> <version>1.0-SNAPSHOT</version> <!--引入项目依赖的jar包 --> <dependencies> <!--版本对应都是用4.3.7.RELEASE --> <!--SpringMVC、Spring --> <!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>4.3.7.RELEASE</version> </dependency> <!--Spring JDBC --> <!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>4.3.7.RELEASE</version> </dependency> <!--Spring 面向切面编程 --> <!-- https://mvnrepository.com/artifact/org.springframework/spring-aspects --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aspects</artifactId> <version>4.3.7.RELEASE</version> </dependency> <!--MyBatis --> <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.4.2</version> </dependency> <!--MyBatis整合Spring的适配包 --> <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.3.0</version> </dependency> <!--数据库连接池 --> <!-- https://mvnrepository.com/artifact/c3p0/c3p0 --> <!-- 这里是用c3p0的方式，查询的时候是c3p0下的c3p0--> <dependency> <groupId>c3p0</groupId> <artifactId>c3p0</artifactId> <version>0.9.1.2</version> </dependency> <!--数据库驱动 --> <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.41</version> </dependency> <!--jstl、servlet-api、junit --> <!-- https://mvnrepository.com/artifact/jstl/jstl --> <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <!-- https://mvnrepository.com/artifact/javax.servlet/servlet-api --> <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <!--服务器里有，发布到服务器上不需要这个包 --> <scope>provided</scope> <version>2.5</version> </dependency> <!-- https://mvnrepository.com/artifact/junit/junit --> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> </dependency> </dependencies> </project>
3、引入bootstrap前端框架
页面用到bootstrap插件的引用
<html> <body> <!--引入JQuery --> <script src="static/js/jquery-1.12.4.min.js"></script> <!--引入样式 --> <link href="static/bootstrap-3.3.7-dist/css/bootstrap.min.css" rel="stylesheet"> <script src="static/bootstrap-3.3.7-dist/js/bootstrap.min.js"></script> <h2>Hello World!</h2> </body> </html>
4、编写ssm整合的关键配置文件（重点来了）
web.xml文件配置
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" version="3.1"> <!--1. 启动Spring的容器--> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml</param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!--2.springmvc的前端控制器，拦截所有请求 --> <servlet> <servlet-name>dispatcherServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <!--<init-param>--> <!--<param-name>contextConfigLocation</param-name>--> <!--<<param-value>location</param-value>--> <!--</init-param>--> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>dispatcherServlet</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!--3.字符编码过滤器 ,一定放在所有的过滤器之前--> <filter> <filter-name>CharacterEncodingFilter</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>forceRequestEncoding</param-name> <param-value>true</param-value> </init-param> <init-param> <param-name>forceResponseEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>CharacterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!--4.使用Rest风格的URI，将页面的普通post请求转为制定的delete请求或者put请求 --> <filter> <filter-name>hiddenHttpMethodFilter</filter-name> <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class> </filter> <filter-mapping> <filter-name>hiddenHttpMethodFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app>
web.xml文件配置完了后，就开始配置springmvc的配置文件（dispatcherServlet-servlet.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: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-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"> <!--SpringMVC的配置文件，包含网站跳转逻辑的控制，配置 （跟网站逻辑有关的，放在这）--> <context:component-scan base-package="com.dotcore" use-default-filters="false"> <!--只扫描控制器 得把默认的改为false--> <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/> </context:component-scan> <!--配置视图解析器 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/views"/> <property name="suffix" value=".jsp"/> </bean> <!--两个标准配置 --> <!--将Springmvc不能处理的请求交给tomcat --> <mvc:default-servlet-handler/> <!--能支持springmvc更高级的一些功能，JSR303,快捷的ajax请求 --> <mvc:annotation-driven/> </beans>
配置dbconfig.properties数据源的常量
jdbc.jdbcUrl = jdbc:mysql://localhost:3306/ssm_crud jdbc.driverClass = com.mysql.jdbc.Driver jdbc.user=root jdbc.password=123456
SSM整合配置_配置Spring
<?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" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/aop/spring-tx-4.0.xsd"> <!--这边不扫描控制器 --> <context:component-scan base-package="com.dotcore"> <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/> </context:component-scan> <!-- spring的配置文件，这里主要配置和业务逻辑有关的--> <!-- 数据源，事务处理xxxx--> <context:property-placeholder location="classpath:dbconfig.properties"/> <bean id="pooledDataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> <property name="jdbcUrl" value="${jdbc.jdbcUrl}"/> <property name="driverClass" value="${jdbc.driverClass}"></property> <property name="user" value="${jdbc.user}"></property> <property name="password" value="${jdbc.password}"></property> </bean> <!-- 数据源，事务处理xxxx--> <!--配置和mybatis的整合 --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <!--指定mybatis全局配置文件的位置--> <property name="configLocation" value="classpath:mybatis-config.xml"></property> <property name="dataSource" ref="pooledDataSource"/> <!--指定mybatis，mapper文件的位置--> <property name="mapperLocations" value="classpath:mapper/*.xml"/> </bean> <!--配置扫描器，将mybatis接口的实现加入到ioc容器中--> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <!-- 扫描所有dao接口的实现，加入到ioc容器中--> <property name="basePackage" value="com.dotcore.dao"></property> </bean> <!--配置和mybatis的整合 --> <!--事务控制的配置--> <!--事务管理器 --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <!--控制住数据源--> <property name="dataSource" ref="pooledDataSource"/> </bean> <!-- 开启基于注解的事务，使用xml配置形式的事务（必要主要的都是使用配置式） --> <aop:config> <!--切入点表达式--> <aop:pointcut id="txPoint" expression="execution(* com.dotcore.service..*(..))"></aop:pointcut> <!--配置事务增强--> <aop:advisor advice-ref="txAdvice" pointcut-ref="txPoint"/> </aop:config> <!--配置事务增强,事务如何切入--> <tx:advice id="txAdvice" transaction-manager="transactionManager"> <tx:attributes> <!--所有方法都是事务方法--> <tx:method name="*"/> <!--以get开始的所有方法--> <tx:method name="get*" read-only="true"/> </tx:attributes> </tx:advice> <!--事务控制的配置--> <!-- Spring配置文件的核心点（数据源，与mybatis的整合，事务控制）--> </beans>
最后mybatis的配置文件
<?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> <!--驼峰命名规则--> <settings> <setting name="mapUnderscoreToCamelCase" value="true"/> </settings> <!--别名--> <typeAliases> <package name="com.dotcore.model"/> </typeAliases> </configuration>
这样，相关的配置文件都配置完毕了
最后配置一张项目的结构图
