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SSM框架整合篇

目录

SSM整合框架搭建步骤

SSM整合

Author:SimpleWu

github(已上传SSMrest风格简单增删该查实例):https://gitlab.com/450255266/code/

目前Spring+SpringMVC+Mybatis是一套非常流行的配套开发框架。

    spring核心ioc、aop技术,ioc解耦,使得代码复用,可维护性大幅度提升,aop提供切面编程,同样的增强了生产力。提供了对其他优秀开源框架的集成支持spring mvc是对比struts2等mvc框架来说的,不说struts2爆出的那么多安全漏洞,而且是类拦截,所有Action变量共享,同时是filter入口的,而spring mvc是方法拦截,controller独享request response数据,采用的serlvet入口,与spring无缝对接。开发而言,spring mvc更加轻量和低入门。mybatis轻量级半自动化框架,sql由开发者编写可对语句进行调优,并且mybatis使用XML方式JAVA代码与SQL可以解耦并且支持动态SQL语句,学习成本低。

框架搭建步骤

导包

    导入Spring+SpringMVC(如果不会选全倒进去就行了)导入mybatis包(如果需要用到日志可将mybatis依赖包导入)导入mybatis-spring-1.3.1.jar(整合必须又这个包)导入c3p0(当然你也可以使用其他连接池)导入数据库驱动

配置log4j.properties

由于MyBatis依赖与log4j输出sql语句信息,所以需要配置log4j配置文件。

#设置输出级别和输出位置log4j.rootLogger=debug,Console#设置控制台相关的参数log4j.appender.Console=org.apache.log4j.ConsoleAppender log4j.appender.Console.layout=org.apache.log4j.PatternLayout log4j.appender.Console.layout.ConversionPattern=%d [%t] %-5p [%c] - %m%n #设置MyBatis的输出内容log4j.logger.java.sql.ResultSet=INFO log4j.logger.org.apache=INFO log4j.logger.java.sql.Connection=DEBUG log4j.logger.java.sql.Statement=DEBUG log4j.logger.java.sql.PreparedStatement=DEBUG

配置WEB.xml

1.设置编码过滤器

<filter> <description>字符集过滤器</description> <filter-name>encodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <description>字符集编码</description> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param></filter><filter-mapping> <filter-name>encodingFilter</filter-name> <url-pattern>/*</url-pattern></filter-mapping>

2.添加Spring配置文件位置(等下我们创建spring-context.xml)

<!-- 配置加载Spring-context文件 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-context.xml</param-value> </context-param><!--添加Spring的监听器--> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener>

3.DispatcherServlet配置

<!-- SprigMVC配置 --><servlet> <servlet-name>dispatcher</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <description>springmvc 配置文件</description> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-mvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup></servlet><servlet-mapping> <servlet-name>dispatcher</servlet-name> <url-pattern>/</url-pattern></servlet-mapping>

4.添加PUT DELETE支持

<!-- 添加PUT DELETE支持 --> <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>

5.配置Sessin过期时间

<!-- 配置session超时时间,单位分钟 --><session-config> <session-timeout>15</session-timeout></session-config>

spring-mvc.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:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd 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-4.2.xsd"> <!-- 让扫描spring扫描这个包下所有的类,让标注spring注解的类生效 --> <context:component-scan base-package="com.simple.ssm.controller"> <!-- 只扫描@Controller与@ControllerAdvice修饰的类 --> <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/> <context:include-filter type="annotation" expression="org.springframework.web.bind.annotation.ControllerAdvice"/> </context:component-scan> <!-- 加入静态资源与动态资源支持 --> <mvc:default-servlet-handler/> <mvc:annotation-driven/> <!-- 视图解析器 --> <bean > <property name="prefix" value="/WEB-INF/views/" /> <property name="suffix" value=".jsp"></property> </bean></beans>

spring-context.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" 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-4.2.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.2.xsd"> <!--引入外部数据库连接信息文件--> <context:property-placeholder location="classpath:db.properties" /> <!-- 扫描所有除@Controller ,@ControllerAdvice修饰的bean --> <context:component-scan base-package="com.simple.ssm"> <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller" /> <context:exclude-filter type="annotation" expression="org.springframework.web.bind.annotation.ControllerAdvice" /> </context:component-scan> <!-- 配置c3p0连接池 --> <bean id="dataSource" > <property name="driverClass" value="${mysql.driverClass}" /> <!-- jdbc:mysql://localhost/mybatis?characterEncoding=utf8&amp;serverTimezone=UTC --> <property name="jdbcUrl" value="${mysql.jdbcUrl}" /> <!-- 连接用户名 --> <property name="user" value="${mysql.user}" /> <property name="password" value="${mysql.password}" /> <!-- 连接密码 --> <!-- 队列中的最小连接数 --> <property name="minPoolSize" value="15" /> <!-- 队列中的最大连接数 --> <property name="maxPoolSize" value="25" /> <!-- 当连接耗尽时创建的连接数 --> <property name="acquireIncrement" value="15" /> <!-- 等待时间 --> <property name="checkoutTimeout" value="10000" /> <!-- 初始化连接数 --> <property name="initialPoolSize" value="20" /> <!-- 最大空闲时间,超出时间连接将被丢弃 --> <property name="maxIdleTime" value="20" /> <!-- 每隔60秒检测空闲连接 --> <property name="idleConnectionTestPeriod" value="60000" /> </bean> <!-- 配置事务管理器 --> <bean id="transactionManager" > <property name="dataSource" ref="dataSource" /> </bean> <!-- 拦截器方式配置事物 --> <!-- <tx:advice id="txAdvice" transaction-manager="transactionManager"> <tx:attributes> <tx:method name="add*" propagation="REQUIRED" /> <tx:method name="insert*" propagation="REQUIRED" /> <tx:method name="save*" propagation="REQUIRED" /> <tx:method name="update*" propagation="REQUIRED" /> <tx:method name="delete*" propagation="REQUIRED" /> <tx:method name="remove*" propagation="REQUIRED" /> <tx:method name="find*" propagation="SUPPORTS" /> <tx:method name="load*" propagation="SUPPORTS" /> <tx:method name="search*" propagation="SUPPORTS" /> <tx:method name="*" propagation="SUPPORTS" /> </tx:attributes> </tx:advice> --> <!-- 配置切面 --> <!-- <aop:config> 事务入口(Service的包路径) <aop:pointcut id="transactionPointcut" expression="execution(* com.simple.ssm.service.*.*(..))" /> 将事务通知与切入点组合 <aop:advisor pointcut-ref="transactionPointcut" advice-ref="txAdvice" /> </aop:config> --> <!-- 使用注解来控制事务 --> <tx:annotation-driven transaction-manager="transactionManager" /> <!-- 配置mybatis, 绑定c3p0 --> <bean id="sqlSessionFactory" > <property name="dataSource" ref="dataSource" /> <!-- 配置mybatis配置文件所在位置 --> <property name="configLocation" value="classpath:mybatis-config.xml" /> <!-- 配置实体类XML映射所在位置 --> <property name="mapperLocations" value="classpath:com/simple/ssm/dao/mapper/*.xml" /> </bean> <!-- 扫描生成所有dao层 --> <bean > <!-- 指定持久化接口包位置 --> <property name="basePackage" value="com.simple.ssm.dao"></property> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property> </bean></beans>

mybaits-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> <!-- 开启驼峰式命名规则 --> <setting name="mapUnderscoreToCamelCase" value="true"/> <!-- 开启二级缓存 --> <setting name="cacheEnabled" value="true"/> <!-- 开启懒加载 --> <setting name="lazyLoadingEnabled" value="true"/> </settings> <typeAliases> <package name="com.simple.ssm.entitys"/> </typeAliases></configuration>

db.properties(可内置)

mysql.driverClass=com.mysql.jdbc.Drivermysql.jdbcUrl=jdbc:mysql://localhost/mybatis?characterEncoding=utf8&serverTimezone=UTCmysql.user=rootmysql.password=root

到这里其实我们的SSM已经整合完成,如果我们需要其他功能可以在加,不要忘记导入包。

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