SSM（Spring+SpringMVC+Mybatis），目前较为主流的企业级架构方案。标准的MVC设计模式，将整个系统划分为显示层、Controller层、Service层、Dao层四层，使用SpringMVC负责请求的转发和视图管理，Spring实现业务对象管理,MyBatis作为数据对象持久化引擎。
一. 框架详情
Spring是一个轻量级的Java开发框架，它是为了解决企业应用开发的复杂性而创建的。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
SpringMVC属于SpringFrameWork的后续产品，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
MyBatis是一个基于Java的持久层框架。MyBatis提供的持久层框架包括sql Maps和Data Access Objects（DAO）它消除了几乎所有的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映射成数据库中的记录
二. 创建Maven项目
1、Eclipse中用Maven创建项目
2、按默认Next
3、找到maven-archetype-webapp后，点击next
4、填写相应的信息，GroupID是项目组织唯一的标识符，实际对应JAVA的包的结构。ArtifactID就是项目的唯一的标识符，实际对应项目的名称，就是项目根目录的名称。Package填了默认给你建一个包，不写也可以。
5、刚建好的目录如下
6、Maven规定必须添加以下Source Folder：
src/main/resources
src/main/java
src/test/resources
src/test/java
在这步之前最好先项目上右键选择propertIEs，然后点击java build path，在librarys下，编辑JRE System library，选择workspace default jre。
7、分别修改输出路径为，对应关系如下：
8、将项目转换成Dynamic Web Project，在项目上右键PropertIEs，在左侧选择 Project Facets。
9、设置部署时的文件发布路径，删除test的两项，因为test是测试使用，并不需要部署。
设置将Maven的jar包发布到lib下。Add -> Java Build Path EntrIEs -> Maven DependencIEs -> Finish
三. Maven引入需要的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.yingjun.test</groupID> <artifactID>TradingState</artifactID> <packaging>war</packaging> <version>2.0.1</version> <propertIEs> <project.build.sourceEnCoding>UTF-8</project.build.sourceEnCoding> <maven.build.timestamp.format>yyyyMMddHHmmss</maven.build.timestamp.format> <spring.version>3.2.9.RELEASE</spring.version> <mybatis.version>3.1.1</mybatis.version> <mybatisspring.version>1.1.1</mybatisspring.version> </propertIEs> <dependencIEs> <dependency> <groupID>org.springframework</groupID> <artifactID>spring-core</artifactID> <version>${spring.version}</version> </dependency> <dependency> <groupID>org.springframework</groupID> <artifactID>spring-webmvc</artifactID> <version>${spring.version}</version> </dependency> <dependency> <groupID>org.springframework</groupID> <artifactID>spring-test</artifactID> <version>${spring.version}</version> </dependency> <dependency> <groupID>org.mybatis</groupID> <artifactID>mybatis</artifactID> <version>${mybatis.version}</version> </dependency> <dependency> <groupID>org.mybatis</groupID> <artifactID>mybatis-spring</artifactID> <version>${mybatisspring.version}</version> </dependency> <dependency> <groupID>MysqL</groupID> <artifactID>mysql-connector-java</artifactID> <version>5.1.34</version> </dependency> <dependency> <groupID>junit</groupID> <artifactID>junit</artifactID> <version>4.11</version> <scope>test</scope> </dependency> <dependency> <groupID>c3p0</groupID> <artifactID>c3p0</artifactID> <version>0.9.1.2</version> </dependency> <dependency> <groupID>org.aspectj</groupID> <artifactID>aspectjweaver</artifactID> <version>1.8.1</version> </dependency> <dependency> <groupID>javax.servlet</groupID> <artifactID>Jstl</artifactID> <version>1.2</version> </dependency> <dependency> <groupID>javax.servlet</groupID> <artifactID>servlet-API</artifactID> <version>3.0</version> <scope>provIDed</scope> </dependency> <dependency> <groupID>javax.servlet.Jsp</groupID> <artifactID>Jsp-API</artifactID> <version>2.2</version> <scope>provIDed</scope> </dependency> <dependency> <groupID>commons-fileupload</groupID> <artifactID>commons-fileupload</artifactID> <version>1.3.1</version> </dependency> <dependency> <groupID>commons-lang</groupID> <artifactID>commons-lang</artifactID> <version>2.6</version> </dependency> <dependency> <groupID>commons-codec</groupID> <artifactID>commons-codec</artifactID> <version>1.9</version> </dependency> <dependency> <groupID>org.apache.httpcomponents</groupID> <artifactID>httpclIEnt</artifactID> <version>4.5</version> </dependency> <dependency> <groupID>org.slf4j</groupID> <artifactID>slf4j-api</artifactID> <version>1.7.10</version> </dependency> <dependency> <groupID>org.slf4j</groupID> <artifactID>slf4j-log4j12</artifactID> <version>1.7.10</version> </dependency> <dependency> <groupID>log4j</groupID> <artifactID>log4j</artifactID> <version>1.2.17</version> </dependency> <dependency> <groupID>com.alibaba</groupID> <artifactID>fastJson</artifactID> <version>1.1.41</version> </dependency> <dependency> <groupID>org.codehaus.jackson</groupID> <artifactID>jackson-mapper-asl</artifactID> <version>1.9.13</version> </dependency> </dependencIEs> <build> <plugins> <plugin> <artifactID>maven-compiler-plugin</artifactID> <version>2.3.2</version> <configuration> <source>1.7</source> <target>1.7</target> </configuration> </plugin> <plugin> <artifactID>maven-war-plugin</artifactID> <version>2.2</version> <configuration> <version>3.0</version> <failOnMissingWebXml>false</failOnMissingWebXml> </configuration> </plugin> </plugins> <finalname>${project.artifactID}_${project.version}_${maven.build.timestamp}</finalname> </build> </project> 四. 相关配置文件配置，整合SSM框架
web.xml
<?xml version="1.0" enCoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:web="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" version="2.4"> <!-- 配置 Spring --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring.xml</param-value> </context-param> <Listener> <Listener-class>org.springframework.web.context.ContextLoaderListener</Listener-class> </Listener> <!-- 防止Spring内存溢出监听器 --> <Listener> <Listener-class>org.springframework.web.util.IntrospectorCleanupListener</Listener-class> </Listener> <!-- 配置springmvc --> <servlet> <servlet-name>springMVC</servlet-name> <servlet-class>org.springframework.web.servlet.dispatcherServlet</servlet-class> <init-param> <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>springMVC</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!-- 字符集过滤器 --> <filter> <filter-name>enCodingFilter</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>forceEnCoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapPing> <filter-name>enCodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapPing> </web-app>
spring.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" 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-3.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd "> <!-- 扫描service、dao组件 --> <context:component-scan base-package="com.yingjun.test" /> <!-- 分解配置 jdbc.properites --> <context:property-placeholder location="classpath:jdbc.propertIEs" /> <!-- 数据源c3p0 --> <bean ID="dataSource" > <property name="driverClass" value="${jdbc.driverClassname}" /> <property name="jdbcUrl" value="${jdbc.url}" /> <property name="user" value="${jdbc.username}" /> <property name="password" value="${jdbc.password}" /> <property name="maxPoolSize" value="${c3p0.pool.size.max}" /> <property name="minPoolSize" value="${c3p0.pool.size.min}" /> <property name="initialPoolSize" value="${c3p0.pool.size.ini}" /> <property name="acquireIncrement" value="${c3p0.pool.size.increment}" /> </bean> <!-- sessionFactory 将spring和mybatis整合 --> <bean ID="sqlSessionFactory" > <property name="dataSource" ref="dataSource" /> <property name="configLocation" value="classpath:spring-mybatis.xml" /> <property name="mapperLocations" value="classpath*:com/yingjun/test/mapPing/**/*.xml" /> </bean> <bean > <property name="basePackage" value="com,yingjun.test.dao" /> <property name="sqlSessionfactorybeanname" value="sqlSessionFactory" /> </bean> <bean ID="transactionManager" > <property name="dataSource" ref="dataSource" /> </bean> <tx:advice ID="transactionAdvice" transaction-manager="transactionManager"> <tx:attributes> <tx:method name="add*" propagation="required" /> <tx:method name="append*" propagation="required" /> <tx:method name="insert*" propagation="required" /> <tx:method name="save*" propagation="required" /> <tx:method name="update*" propagation="required" /> <tx:method name="modify*" propagation="required" /> <tx:method name="edit*" propagation="required" /> <tx:method name="delete*" propagation="required" /> <tx:method name="remove*" propagation="required" /> <tx:method name="repair" propagation="required" /> <tx:method name="delAndRepair" propagation="required" /> <tx:method name="get*" propagation="SUPPORTS" /> <tx:method name="find*" propagation="SUPPORTS" /> <tx:method name="load*" propagation="SUPPORTS" /> <tx:method name="search*" propagation="SUPPORTS" /> <tx:method name="datagrID*" propagation="SUPPORTS" /> <tx:method name="*" propagation="SUPPORTS" /> </tx:attributes> </tx:advice> <aop:config> <aop:pointcut ID="transactionpointcut" Expression="execution(* com.yingjun.test.service..*Impl.*(..))" /> <aop:advisor pointcut-ref="transactionpointcut" advice-ref="transactionAdvice" /> </aop:config> </beans> 为了代替手工使用 sqlSessionDaoSupport 或 sqlSessionTemplate 编写数据访问对象 (DAO)的代码,MyBatis-Spring 提供了一个动态代理的实现:Mapperfactorybean。这个类 可以让你直接注入数据映射器接口到你的 service 层 bean 中。当使用映射器时,你仅仅如调 用你的 DAO 一样调用它们就可以了,但是你不需要编写任何 DAO 实现的代码,因为 MyBatis-Spring 将会为你创建代理。
spring-mybatis.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> <!-- 暂时不需要其他配置--> </configuration>
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: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-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd"> <!-- 默认的注解映射的支持 --> <mvc:annotation-driven /> <!-- 自动扫描该包，使SpringMVC认为包下用了@controller注解的类是控制器 --> <context:component-scan base-package="com.yingjun.test.controller" /> <!--避免IE执行AJAX时，返回JsON出现下载文件 --> <bean ID="mapPingJacksonhttpMessageConverter" > <property name="supportedMediaTypes"> <List> <value>text/HTML;charset=UTF-8</value> </List> </property> </bean> <!-- 定义跳转的文件的前后缀 ，视图模式配置 --> <bean > <!-- 这里的配置我的理解是自动给后面action的方法return的字符串加上前缀和后缀，变成一个 可用的URL地址 --> <property name="prefix" value="/WEB-INF/Jsp/" /> <property name="suffix" value=".Jsp" /> </bean> <!-- 配置文件上传，如果没有使用文件上传可以不用配置，当然如果不配，那么配置文件中也不必引入上传组件包 --> <bean ID="multipartResolver" > <!-- 默认编码 --> <property name="defaultEnCoding" value="utf-8" /> <!-- 文件大小最大值 --> <property name="maxUploadSize" value="10485760000" /> <!-- 内存中的最大值 --> <property name="maxInMemorySize" value="40960" /> </bean> </beans>
log4j.propertIEs
jdbc.driverClassname=com.MysqL.jdbc.Driver jdbc.url=jdbc:MysqL://192.168.1.194:3306/test?useUnicode=true&characterEnCoding=UTF-8 jdbc.username=root jdbc.password=root c3p0.pool.size.max=20 c3p0.pool.size.min=5 c3p0.pool.size.ini=3 c3p0.pool.size.increment=2
jdbc.propertIEs
log4j.rootLogger=info,console,deBUG,app,error ###Console ### log4j.appender.console = org.apache.log4j.ConsoleAppender log4j.appender.console.Target = System.out log4j.appender.console.layout = org.apache.log4j.PatternLayout log4j.appender.console.layout.ConversionPattern = %d %p[%C:%L]- %m%n ### deBUG ### log4j.appender.deBUG = org.apache.log4j.DailyRollingfileAppender log4j.appender.deBUG.file = log/deBUG.log log4j.appender.deBUG.Append = true log4j.appender.deBUG.Threshold = DEBUG log4j.appender.deBUG.DatePattern='.'yyyy-MM-dd log4j.appender.deBUG.layout = org.apache.log4j.PatternLayout log4j.appender.deBUG.layout.ConversionPattern = %d %p[%c:%L] - %m%n ### app ### log4j.appender.app = org.apache.log4j.DailyRollingfileAppender log4j.appender.app.file = log/app.log log4j.appender.app.Append = true log4j.appender.app.Threshold = INFO log4j.appender.app.DatePattern='.'yyyy-MM-dd log4j.appender.app.layout = org.apache.log4j.PatternLayout log4j.appender.app.layout.ConversionPattern = %d %p[%c:%L] - %m%n ### Error ### log4j.appender.error = org.apache.log4j.DailyRollingfileAppender log4j.appender.error.file = log/error.log log4j.appender.error.Append = true log4j.appender.error.Threshold = ERROR log4j.appender.error.DatePattern='.'yyyy-MM-dd log4j.appender.error.layout = org.apache.log4j.PatternLayout log4j.appender.error.layout.ConversionPattern =%d %p[%c:%L] - %m%n
五. 利用MyBatis Generator自动创建实体类、映射文件以及DAO接口
MyBatis属于一种半自动的ORM框架，所以主要的工作就是配置MapPing映射文件，但是由于手写映射文件很容易出错，所以可利用MyBatis生成器自动生成实体类、DAO接口和MapPing映射文件。这样可以省去很多的功夫，将生成的代码copy到项目工程中即可。
生成代码需要的文件和jar并建立如下目录结构：
在generatorl.xml中配置相关的数据库连接，已经数据库表：
<?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> <!-- 数据库驱动 --> <classpathEntry location="mysql-connector-java-5.1.34.jar" /> <context ID="DB2tables" targetRuntime="MyBatis3"> <commentGenerator> <property name="suppressDate" value="true" /> <!-- 是否去除自动生成的注释 true：是 ： false:否 --> <property name="suppressAllComments" value="true" /> </commentGenerator> <!--数据库链接URL，用户名、密码 --> <jdbcConnection driverClass="com.MysqL.jdbc.Driver" connectionURL="jdbc:MysqL://192.168.1.194:3306/noc" userID="root" password="root"> </jdbcConnection> <javaTypeResolver> <property name="forceBigDecimals" value="false" /> </javaTypeResolver> <!-- 生成模型的包名和位置 --> <javaModelGenerator targetPackage="com.yingjun.test.model" targetProject="src"> <property name="enableSubPackages" value="true" /> <property name="trimstrings" value="true" /> </javaModelGenerator> <!-- 生成映射文件的包名和位置 --> <sqlMapGenerator targetPackage="com.yingjun.test.mapPing" targetProject="src"> <property name="enableSubPackages" value="true" /> </sqlMapGenerator> <!-- 生成DAO的包名和位置 --> <javaClIEntGenerator type="XMLMAPPER" targetPackage="com.yingjun.test.dao" targetProject="src"> <property name="enableSubPackages" value="true" /> </javaClIEntGenerator> <!-- 要生成的表 tablename是数据库中的表名或视图名 domainObjectname是实体类名 --> <table tablename="other_List" domainObjectname="OtherList" enableCountByExample="fasle" enableupdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExamplequeryID="false" > </table> </context> </generatorConfiguration>
打开CMD窗口 进入该目录结构，输入命令行：
java -jar mybatis-generator-core-1.3.2.jar -configfile generator.xml -overwrite
运行完成后会生成相应的dao mapper 和model，是不是很爽。
六. 建立Service层以及conrorller层
package com.yingjun.test.service; public interface OtherServiceI { public String getoterList(); } package com.yingjun.test.service; import java.util.ArrayList; import java.util.Arrays; import java.util.HashSet; import java.util.List; import java.util.Map; import java.util.Set; import org.springframework.beans.factory.annotation.autowired; import org.springframework.stereotype.Service; import com.alibaba.fastJson.JsON; import com.alibaba.fastJson.serializer.SerializerFeature; import com.yingjun.test.dao.OtherListMapper; import com.yingjun.test.model.OtherList; import com.yingjun.test.model.OtherListDomain; @Service public class OtherServiceImpl implements OtherServiceI { @autowired private OtherListMapper otherListMapper; @OverrIDe public String getoterList() { Set<String> set=new HashSet<String>(); List<OtherList> List=otherListMapper.selectAll(); List<OtherListDomain> JsonList=new ArrayList<OtherListDomain>(); for(OtherList other:List){ String Title=other.getTitle(); if(set.contains(Title)){ continue; }else{ List<OtherList> t_List=new ArrayList<OtherList>(); for(OtherList data:List){ if(Title.equals(data.getTitle())){ t_List.add(data); } } OtherListDomain domain=new OtherListDomain(); domain.setTitle(Title); domain.setItems(t_List); JsonList.add(domain); set.add(other.getTitle()); } } return JsON.toJsONString(JsonList,SerializerFeature.WriteMapNullValue); } } package com.yingjun.test.controller; import org.springframework.beans.factory.annotation.autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapPing; import org.springframework.web.bind.annotation.ResponseBody; import com.alibaba.fastJson.JsON; import com.yingjun.test.service.OtherServiceI; import com.yingjun.test.service.StockStatusServiceI; @Controller @RequestMapPing(value = "/") public class TSSController { @autowired private OtherServiceI otherService; @RequestMapPing(value="/getotherList",produces="text/HTML;charset=UTF-8" ) @ResponseBody private String getotherList(){ String Json=otherService.getoterList(); return Json; } } 七. 建立测试类
import java.util.List; import org.apache.log4j.LogManager; import org.apache.log4j.Logger; import org.junit.Test; import org.junit.runner.RunWith; import org.springframework.beans.factory.annotation.autowired; import org.springframework.test.context.ContextConfiguration; import org.springframework.test.context.junit4.SpringJUnit4ClassRunner; @RunWith(SpringJUnit4ClassRunner.class) @ContextConfiguration(locations = {"classpath:spring.xml"}) public class TestMybatis { @autowired private OtherServiceI service; @Test public voID test() { String List=service.getoterList(); logger.info(List); } } 八. 通过浏览器进行验证
http://localhost:8080/TzyjstateService/getotherList
至此，测试成功，SSM三大框架的整合就完成了，有什么其他需求可以在此基础继续添
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持编程小技巧。
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