java搭建 SpringMVC+Mybatis(SMM)+mybatis-generate
搭建SSM系统，首先要了解整个过程：
1、创建spring-mvc项目
2、在maven中添加要引用的jar包（使用框架都是较新的版本：）
3、 jdbc.xml +spring-mybatis.xml的配置，
4、Log4j的配置
5、配置 spring-mvc.xml+web.xml
6、配置 generatorConfig.xml
7、测试及注意事项
1、创建项目，在这里首先给出资源文件结构图（红色圈中的为下面要添加修改的文件）
2、Maven引入需要的JAR包
1 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 2 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> 3 <modelVersion>4.0.0</modelVersion> 4 <groupId>com.springapp</groupId> 5 <artifactId>SSM</artifactId> 6 <packaging>war</packaging> 7 <version>1.0-SNAPSHOT</version> 8 <name>SSM</name> 9 10 <properties> 11 <spring.version>4.1.1.RELEASE</spring.version> 12 <mybatis.version>3.2.6</mybatis.version> 13 <!-- log4j日志文件管理包版本 --> 14 <slf4j.version>1.7.7</slf4j.version> 15 <log4j.version>1.2.17</log4j.version> 16 <logisticTools.version>1.1.1-SNAPSHOT</logisticTools.version> 17 </properties> 18 19 <dependencies> 20 <dependency> 21 <groupId>org.springframework</groupId> 22 <artifactId>spring-core</artifactId> 23 <version>${spring.version}</version> 24 </dependency> 25 26 <dependency> 27 <groupId>org.springframework</groupId> 28 <artifactId>spring-web</artifactId> 29 <version>${spring.version}</version> 30 </dependency> 31 32 <dependency> 33 <groupId>javax.servlet</groupId> 34 <artifactId>servlet-api</artifactId> 35 <version>2.5</version> 36 </dependency> 37 38 <dependency> 39 <groupId>javax.servlet.jsp</groupId> 40 <artifactId>jsp-api</artifactId> 41 <version>2.1</version> 42 <scope>provided</scope> 43 </dependency> 44 45 <dependency> 46 <groupId>org.springframework</groupId> 47 <artifactId>spring-webmvc</artifactId> 48 <version>${spring.version}</version> 49 </dependency> 50 51 <dependency> 52 <groupId>org.springframework</groupId> 53 <artifactId>spring-test</artifactId> 54 <version>${spring.version}</version> 55 <scope>test</scope> 56 </dependency> 57 58 <dependency> 59 <groupId>junit</groupId> 60 <artifactId>junit</artifactId> 61 <version>4.11</version> 62 <scope>test</scope> 63 </dependency> 64 65 <!-- spring核心包 --> 66 <dependency> 67 <groupId>org.springframework</groupId> 68 <artifactId>spring-core</artifactId> 69 <version>${spring.version}</version> 70 </dependency> 71 72 <dependency> 73 <groupId>org.springframework</groupId> 74 <artifactId>spring-web</artifactId> 75 <version>${spring.version}</version> 76 </dependency> 77 <dependency> 78 <groupId>org.springframework</groupId> 79 <artifactId>spring-oxm</artifactId> 80 <version>${spring.version}</version> 81 </dependency> 82 <dependency> 83 <groupId>org.springframework</groupId> 84 <artifactId>spring-tx</artifactId> 85 <version>${spring.version}</version> 86 </dependency> 87 88 <dependency> 89 <groupId>org.springframework</groupId> 90 <artifactId>spring-jdbc</artifactId> 91 <version>${spring.version}</version> 92 </dependency> 93 94 <dependency> 95 <groupId>org.springframework</groupId> 96 <artifactId>spring-webmvc</artifactId> 97 <version>${spring.version}</version> 98 </dependency> 99 <dependency> 100 <groupId>org.springframework</groupId> 101 <artifactId>spring-aop</artifactId> 102 <version>${spring.version}</version> 103 </dependency> 104 105 <dependency> 106 <groupId>org.springframework</groupId> 107 <artifactId>spring-context-support</artifactId> 108 <version>${spring.version}</version> 109 </dependency> 110 111 <dependency> 112 <groupId>org.springframework</groupId> 113 <artifactId>spring-test</artifactId> 114 <version>${spring.version}</version> 115 </dependency> 116 117 <!-- mybatis核心包 --> 118 <dependency> 119 <groupId>org.mybatis</groupId> 120 <artifactId>mybatis</artifactId> 121 <version>${mybatis.version}</version> 122 </dependency> 123 <!-- mybatis/spring包 --> 124 <dependency> 125 <groupId>org.mybatis</groupId> 126 <artifactId>mybatis-spring</artifactId> 127 <version>1.2.2</version> 128 </dependency> 129 <!-- 导入java ee jar 包 --> 130 <dependency> 131 <groupId>javax</groupId> 132 <artifactId>javaee-api</artifactId> 133 <version>7.0</version> 134 </dependency> 135 <!-- oracle --> 136 <dependency> 137 <groupId>com.oracle</groupId> 138 <artifactId>ojdbc6</artifactId> 139 <version>11.2.0.1.0</version> 140 </dependency> 141 <!-- 导入dbcp的jar包，用来在applicationContext.xml中配置数据库 --> 142 <dependency> 143 <groupId>commons-dbcp</groupId> 144 <artifactId>commons-dbcp</artifactId> 145 <version>1.2.2</version> 146 </dependency> 147 <!-- JSTL标签类 --> 148 <dependency> 149 <groupId>jstl</groupId> 150 <artifactId>jstl</artifactId> 151 <version>1.2</version> 152 </dependency> 153 <!-- 日志文件管理包 --> 154 <!-- log start --> 155 <dependency> 156 <groupId>log4j</groupId> 157 <artifactId>log4j</artifactId> 158 <version>${log4j.version}</version> 159 </dependency> 160 161 162 <!-- 格式化对象，方便输出日志 --> 163 <dependency> 164 <groupId>com.alibaba</groupId> 165 <artifactId>fastjson</artifactId> 166 <version>1.1.41</version> 167 </dependency> 168 169 170 <dependency> 171 <groupId>org.slf4j</groupId> 172 <artifactId>slf4j-api</artifactId> 173 <version>${slf4j.version}</version> 174 </dependency> 175 176 <dependency> 177 <groupId>org.slf4j</groupId> 178 <artifactId>slf4j-log4j12</artifactId> 179 <version>${slf4j.version}</version> 180 </dependency> 181 <!-- log end --> 182 <!-- 映入JSON --> 183 <dependency> 184 <groupId>org.codehaus.jackson</groupId> 185 <artifactId>jackson-mapper-asl</artifactId> 186 <version>1.9.13</version> 187 </dependency> 188 <!-- 上传组件包 --> 189 <dependency> 190 <groupId>commons-fileupload</groupId> 191 <artifactId>commons-fileupload</artifactId> 192 <version>1.3.1</version> 193 </dependency> 194 <dependency> 195 <groupId>commons-io</groupId> 196 <artifactId>commons-io</artifactId> 197 <version>2.4</version> 198 </dependency> 199 <dependency> 200 <groupId>commons-codec</groupId> 201 <artifactId>commons-codec</artifactId> 202 <version>1.9</version> 203 </dependency> 204 205 <!-- jackson --> 206 <dependency> 207 <groupId>org.codehaus.jackson</groupId> 208 <artifactId>jackson-mapper-lgpl</artifactId> 209 <version>1.9.2</version> 210 </dependency> 211 </dependencies> 212 213 <build> 214 <finalName>SSM</finalName> 215 <plugins> 216 <plugin> 217 <artifactId>maven-compiler-plugin</artifactId> 218 <configuration> 219 <source>1.6</source> 220 <target>1.6</target> 221 </configuration> 222 </plugin> 223 <plugin> 224 <artifactId>maven-surefire-plugin</artifactId> 225 <configuration> 226 <includes> 227 <include>**/*Tests.java</include> 228 </includes> 229 </configuration> 230 </plugin> 231 <plugin> 232 <groupId>org.mybatis.generator</groupId> 233 <artifactId>mybatis-generator-maven-plugin</artifactId> 234 <version>1.3.2</version> 235 <configuration> 236 <verbose>true</verbose> 237 <overwrite>true</overwrite> 238 </configuration> 239 </plugin> 240 </plugins> 241 </build> 242 </project>
3、Spring与MyBatis的整合
3.1 配置数据库连接（jdbc.properties）
1 jdbc.driverClassName=oracle.jdbc.driver.OracleDriver 2 jdbc.url=jdbc:oracle:thin:@数据库地址:orcl 3 jdbc.username=用户名 4 jdbc.password=密码
3.2 建立spring-mybatis.xml配置文件（这个文件就是用来完成spring和mybatis的整合的。这里面也没多少行配置，主要的就是自动扫描，自动注入，配置数据库。注释也很详细，大家看看就明白了。）
1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans xmlns="http://www.springframework.org/schema/beans" 3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" 4 xmlns:context="http://www.springframework.org/schema/context" 5 xmlns:tx="http://www.springframework.org/schema/tx" 6 xsi:schemaLocation="http://www.springframework.org/schema/beans 7 http://www.springframework.org/schema/beans/spring-beans-3.1.xsd 8 http://www.springframework.org/schema/context 9 http://www.springframework.org/schema/context/spring-context-3.1.xsd 10 http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"> 11 12 <!-- 引入配置文件 --> 13 <bean id="propertyConfigurer" 14 class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> 15 <property name="location" value="classpath:jdbc.properties" /> 16 </bean> 17 18 <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" 19 destroy-method="close"> 20 <property name="driverClassName" value="${jdbc.driverClassName}" /> 21 <property name="url" value="${jdbc.url}" /> 22 <property name="username" value="${jdbc.username}" /> 23 <property name="password" value="${jdbc.password}" /> 24 </bean> 25 26 <!-- Transaction manager for a single JDBC DataSource --> 27 <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> 28 <property name="dataSource" ref="dataSource"/> 29 </bean> 30 31 <tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true"/> 32 33 <bean id="transactionTemplate" 34 class="org.springframework.transaction.support.TransactionTemplate"> 35 <property name="transactionManager" ref="transactionManager"/> 36 </bean> 37 38 <!-- Activates scanning of @Autowired --> 39 <context:annotation-config/> 40 <context:component-scan base-package="com.huanshare.mapper"/> 41 42 <!-- scan for mappers and let them be autowired --> 43 <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> 44 <property name="basePackage" value="com.huanshare.mapper"/> 45 <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/> 46 </bean> 47 48 <!-- define the SqlSessionFactory --> 49 <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> 50 <property name="dataSource" ref="dataSource"/> 51 <property name="typeAliasesPackage" value="com.huanshare.mapper"/> 52 <property name="mapperLocations" value="classpath:/mapper/*.xml"></property> 53 </bean> 54 </beans>
4、配置log4j.properties（Log4j的配置很简单，而且也是通用的，下面给出一个基本的配置，换到其他项目中也无需做多大的调整）
1 log4j.rootLogger=INFO,Console,File 2 #定义日志输出目的地为控制台 3 log4j.appender.Console=org.apache.log4j.ConsoleAppender 4 log4j.appender.Console.Target=System.out 5 #可以灵活地指定日志输出格式，下面一行是指定具体的格式 6 log4j.appender.Console.layout = org.apache.log4j.PatternLayout 7 log4j.appender.Console.layout.ConversionPattern=[%c] - %m%n 8 9 #文件大小到达指定尺寸的时候产生一个新的文件 10 log4j.appender.File = org.apache.log4j.RollingFileAppender 11 #指定输出目录 12 log4j.appender.File.File = logs/ssm.log 13 #定义文件最大大小 14 log4j.appender.File.MaxFileSize = 10MB 15 # 输出所以日志，如果换成DEBUG表示输出DEBUG以上级别日志 16 log4j.appender.File.Threshold = ALL 17 log4j.appender.File.layout = org.apache.log4j.PatternLayout 18 log4j.appender.File.layout.ConversionPattern =[%p] [%d{yyyy-MM-dd HH\:mm\:ss}][%c]%m%n
5、最后整合
5.1、配置springmvc.xml
1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans xmlns="http://www.springframework.org/schema/beans" 3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 4 xmlns:context="http://www.springframework.org/schema/context" 5 xsi:schemaLocation="http://www.springframework.org/schema/beans 6 http://www.springframework.org/schema/beans/spring-beans-3.1.xsd 7 http://www.springframework.org/schema/context 8 http://www.springframework.org/schema/context/spring-context-3.1.xsd"> 9 10 <context:component-scan base-package="com.huanshare" /> 11 12 <!-- 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 --> 13 <bean id="multipartResolver" 14 class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> 15 <!-- 默认编码 --> 16 <property name="defaultEncoding" value="utf-8" /> 17 <!-- 文件大小最大值 --> 18 <property name="maxUploadSize" value="10485760000" /> 19 <!-- 内存中的最大值 --> 20 <property name="maxInMemorySize" value="40960" /> 21 </bean> 22 23 </beans>
5.2、配置mvc-dispatcher-servlet.xml
1 <beans xmlns="http://www.springframework.org/schema/beans" 2 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 3 xmlns:mvc="http://www.springframework.org/schema/mvc" 4 xsi:schemaLocation="http://www.springframework.org/schema/beans 5 http://www.springframework.org/schema/beans/spring-beans.xsd 6 http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd"> 7 8 9 <!--引入配置文件--> 10 <import resource="classpath:spring-mvc.xml"/> 11 <import resource="classpath:spring-mybatis.xml"/>
<!--配置页面加载js,css文件--> 12 <mvc:annotation-driven /> 13 <mvc:resources mapping="/statics/**" location="/statics/" />
14 <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> 15 <property name="prefix" value="/WEB-INF/pages/"/> 16 <property name="suffix" value=".jsp"/> 17 </bean> 18 </beans>
5.3、配置web.xml
<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> <display-name>Spring MVC Application</display-name> <servlet> <servlet-name>mvc-dispatcher</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>mvc-dispatcher</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!--配置编码UTF-8--> <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>
6、配置 generatorConfig.xml
<?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> <!-- C:/Users/jun.li/.m2/repository C:/Documents and Settings/alan/.m2/repository/mysql/mysql-connector-java/5.1.9/mysql-connector-java-5.1.9.jar C:/Users/zhiqiang.ma/.m2/repository/com/zhaogang/jdbc/ojdbc14/10.2.0.4.0/ojdbc14-10.2.0.4.0.jar --> <classPathEntry location="D:\ojdbc6-11.2.0.1.0.jar"></classPathEntry> <context id="context1"> <commentGenerator> <!-- 是否去除自动生成的注释 true：是 ： false:否 --> <property name="suppressAllComments" value="true"/> </commentGenerator> <jdbcConnection driverClass="oracle.jdbc.driver.OracleDriver" connectionURL="jdbc:oracle:thin:@数据库地址:orcl" userId="用户名" password="密码"/> <!-- 默认false，把JDBC DECIMAL 和 NUMERIC 类型解析为 Integer true，把JDBC DECIMAL 和 NUMERIC 类型解析为java.math.BigDecimal --> <javaTypeResolver> <property name="forceBigDecimals" value="false"/> </javaTypeResolver> <javaModelGenerator targetPackage="com.huanshare.model" targetProject="src/main/java"/> <!-- mapper接口存放目录 --> <sqlMapGenerator targetPackage="mapper" targetProject="src/main/resources"/> <javaClientGenerator targetPackage="com.huanshare.mapper" targetProject="src/main/java" type="XMLMAPPER"/> <!-- 配置不生成Exmaple文件 --> <table tableName="T_PERSONS" domainObjectName="TDataCarriers" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"> </table> </context> </generatorConfiguration>
7、省略，具体测试要看自己的项目情况
不过在这里，我要说，对于各层之间的方法调用，声明对象，采用注解方式@Autowired，new对象是取不到mapper接口的对象的
