Spring MVC、Spring、MyBatis、Maven整合开发
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本项目是我和朋友业余时间一起练手的博客项目，采用当前流行的SSM框架开发，其中还用到了Page Helper插件来分页，MyBatis-Generator来自动生成dao层和mapper等文件。
项目采用IDEA 2017.1开发。
项目的包结构：
spring MVC的配置文件：springmvc-cfg.xml
<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsdhttp://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd"> <!-- 注解方式配置，非xml --> <mvc:annotation-driven/> <!-- 包自动扫描 --> <context:component-scan base-package="org.blog"/> <!-- 启动依赖注入的注解解析器--> <context:annotation-config/> <!--允许访问的静态资源--> <mvc:resources location="/bootstrap/" mapping="/bootstrap/**"/> <mvc:resources location="/img/" mapping="/img/**"/> <mvc:resources location="/css/" mapping="/css/**"/> <mvc:resources location="/js/" mapping="/js/**"/> <!-- 配置SpringMVC的视图解析器 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/jsp/"/> <property name="suffix" value=".jsp"/> </bean></beans>
Spring与MyBatis整合的配置文件：spring-mybatis.xml
<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"xmlns:context="http://www.springframework.org/schema/context"xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsdhttp://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd"><!-- 注解方式配置，非xml --><mvc:annotation-driven /><!-- 启动依赖注入的注解解析器 --><context:annotation-config /><!-- 包自动扫描 --><context:component-scan base-package="org.blog" /><bean id="propertyConfigurer"class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"><property name="location" value="classpath:jdbc.properties" /></bean><bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"destroy-method="close"><property name="driverClassName" value="${driver}" /><property name="url" value="${url}" /><property name="username" value="${jdbc.username}" /><property name="password" value="${jdbc.password}" /><!-- 初始化连接大小 --><property name="initialSize" value="${initialSize}"/><!-- 连接池最大数量 --><property name="maxActive" value="${maxActive}"/><!-- 连接池最大空闲 --><property name="maxIdle" value="${maxIdle}"/><!-- 连接池最小空闲 --><property name="minIdle" value="${minIdle}"/><!-- 获取连接最大等待时间 --><property name="maxWait" value="${maxWait}"/></bean><bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"><property name="dataSource" ref="dataSource" /><!-- 自动扫描mapping.xml文件 --><property name="mapperLocations" value="classpath*:mapper/*.xml"/> <property name="configLocation" value="classpath:mybatis-config.xml" /></bean><!-- DAO接口所在包名，Spring会自动查找其下的类 --><bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"><property name="basePackage" value="org.blog.dao" /><property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/></bean><!-- (事务管理)transaction manager, use JtaTransactionManager for global tx --><bean id="transactionManager"class="org.springframework.jdbc.datasource.DataSourceTransactionManager"><property name="dataSource" ref="dataSource" /></bean></beans><?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> <!-- plugins在配置文件中的位置必须符合要求，否则会报错，顺序如下: properties?, settings?, typeAliases?, typeHandlers?, objectFactory?,objectWrapperFactory?, plugins?, environments?, databaseIdProvider?, mappers? --> <plugins> <!-- com.github.pagehelper为PageHelper类所在包名 --> <plugin interceptor="com.github.pagehelper.PageHelper"> <property name="dialect" value="mysql"/> <!-- 该参数默认为false --> <!-- 设置为true时，会将RowBounds第一个参数offset当成pageNum页码使用 --> <!-- 和startPage中的pageNum效果一样--> <property name="offsetAsPageNum" value="true"/> <!-- 该参数默认为false --> <!-- 设置为true时，使用RowBounds分页会进行count查询 --> <property name="rowBoundsWithCount" value="true"/> <!-- 设置为true时，如果pageSize=0或者RowBounds.limit = 0就会查询出全部的结果 --> <!-- （相当于没有执行分页查询，但是返回结果仍然是Page类型）--> <property name="pageSizeZero" value="true"/> <!-- 3.3.0版本可用 - 分页参数合理化，默认false禁用 --> <!-- 启用合理化时，如果pageNum<1会查询第一页，如果pageNum>pages会查询最后一页 --> <!-- 禁用合理化时，如果pageNum<1或pageNum>pages会返回空数据 --> <property name="reasonable" value="false"/> <!-- 3.5.0版本可用 - 为了支持startPage(Object params)方法 --> <!-- 增加了一个`params`参数来配置参数映射，用于从Map或ServletRequest中取值 --> <!-- 可以配置pageNum,pageSize,count,pageSizeZero,reasonable,不配置映射的用默认值 --> <!-- 不理解该含义的前提下，不要随便复制该配置 --> <property name="params" value="pageNum=start;pageSize=limit;"/> </plugin> </plugins></configuration>
MyBatis-Generator的配置文件
<?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><classPathEntry location="E:\\mysql-connector-java-5.1.34-bin.jar" /><context id="mybatis_gen"><jdbcConnection connectionURL="jdbc:mysql://localhost:3306/blog"driverClass="com.mysql.jdbc.Driver" userId="root" password="1234" /><javaModelGenerator targetPackage="org.blog.pojo"targetProject="E:\Blog\src\main\java"><property name="enableSubPackages" value="true" /><property name="constructorBased" value="true" /><property name="trimStrings" value="true" /></javaModelGenerator><sqlMapGenerator targetPackage="mapper"targetProject="E:\Blog\src\main\resources" /><javaClientGenerator targetPackage="org.blog.dao"targetProject="E:\Blog\src\main\java" type="XMLMAPPER"><property name="enableSubPackages" value="true" /></javaClientGenerator><table tableName="user" domainObjectName="User"enableCountByExample="true" enableUpdateByExample="true"enableDeleteByExample="true" enableSelectByExample="true"selectByExampleQueryId="true"></table><table tableName="article" domainObjectName="Article"enableCountByExample="true" enableUpdateByExample="true"enableDeleteByExample="true" enableSelectByExample="true"selectByExampleQueryId="true"></table><table tableName="comment" domainObjectName="Comment"enableCountByExample="true" enableUpdateByExample="true"enableDeleteByExample="true" enableSelectByExample="true"selectByExampleQueryId="true"></table><table tableName="resource" domainObjectName="Resource"enableCountByExample="true" enableUpdateByExample="true"enableDeleteByExample="true" enableSelectByExample="true"selectByExampleQueryId="true"></table> <table tableName="message" domainObjectName="Message" enableCountByExample="true" enableUpdateByExample="true" enableDeleteByExample="true" enableSelectByExample="true" selectByExampleQueryId="true"> </table></context></generatorConfiguration>
jdbc.properties
driver=com.mysql.jdbc.Driverurl=jdbc:mysql://localhost:3306/blogjdbc.username=rootjdbc.password=1234#定义初始连接数initialSize=0#定义最大连接数maxActive=20#定义最大空闲maxIdle=20#定义最小空闲minIdle=1#定义最长等待时间maxWait=60000
log4j.properties
#log4j.rootLogger=WARN, stdout, filelog4j.rootLogger=INFO,console,dailyFile###继承rootLogger-->additivity #log4j.additivity.org.apache=true# 控制台(console)log4j.appender.console=org.apache.log4j.ConsoleAppenderlog4j.appender.console.Threshold=WARNlog4j.appender.console.ImmediateFlush=truelog4j.appender.console.Target=System.outlog4j.appender.console.layout=org.apache.log4j.PatternLayoutlog4j.appender.console.layout.ConversionPattern=%n%-d{yyyy-MM-dd HH:mm:ss}%n[%p]-[Thread: %t]-[%C.%M()]: %m%n# 每天产生一个日志文件(dailyFile) log4j.appender.dailyFile=org.apache.log4j.DailyRollingFileAppender#当天的日志文件全路径log4j.appender.dailyFile.File=${catalina.home}/xx/xx.log#log4j.appender.dailyFile.File=/mnt/local/xx/xx.log#服务器启动日志是追加，false：服务器启动后会生成日志文件把老的覆盖掉log4j.appender.dailyFile.Append=true#日志文件格式 log4j.appender.dailyFile.layout=org.apache.log4j.PatternLayout log4j.appender.dailyFile.layout.ConversionPattern=%-d{yyyy-MM-dd HH\:mm\:ss} [%c]-[%p] [%t] (%F\:%L) ->%m %nlog4j.appender.dailyFile.Threshold=WARN#设置每天生成一个文件名后添加的名称,备份名称：年月日.loglog4j.appender.dailyFile.DatePattern='.'yyyy-MM-dd'.log'当然还有最重要的pom.xml
mybatis-generator的插件要在pom.xml中配置
<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>org.blog</groupId> <artifactId>Blog</artifactId> <packaging>war</packaging> <version>1.0-SNAPSHOT</version> <name>Blog Maven Webapp</name> <url>http://maven.apache.org</url> <properties> <maven.compiler.source>1.8</maven.compiler.source> <maven.compiler.target>1.8</maven.compiler.target> <encoding>UTF-8</encoding> <!-- spring版本号 --> <spring.version>4.2.5.RELEASE</spring.version> <!-- mybatis版本号 --> <mybatis.version>3.4.1</mybatis.version> <!-- log4j日志文件管理包版本 --> <slf4j.version>1.7.7</slf4j.version> <log4j.version>1.2.17</log4j.version> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.11</version> <!-- 表示开发的时候引入，发布的时候不会加载此包 --> <scope>test</scope> </dependency> <!-- spring核心包 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-oxm</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring.version}</version> </dependency> <!-- mybatis核心包 --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>${mybatis.version}</version> </dependency> <!-- mybatis-generator --> <dependency> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-core</artifactId> <version>1.3.3</version> <scope>test</scope> </dependency> <dependency> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-maven-plugin</artifactId> <version>1.3.3</version> <scope>test</scope> </dependency> <!-- mybatis/spring包 --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.2.2</version> </dependency> <!-- mybatis 分页插件 --> <dependency> <groupId>com.github.pagehelper</groupId> <artifactId>pagehelper</artifactId> <version>4.1.6</version> </dependency> <!-- 导入java ee jar 包 --> <dependency> <groupId>javax</groupId> <artifactId>javaee-api</artifactId> <version>7.0</version> </dependency> <!-- 导入Mysql数据库链接jar包 --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.30</version> </dependency> <!-- 导入dbcp的jar包，用来在applicationContext.xml中配置数据库 --> <dependency> <groupId>commons-dbcp</groupId> <artifactId>commons-dbcp</artifactId> <version>1.2.2</version> </dependency> <!-- JSTL标签类 --> <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <!-- 日志文件管理包 --> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>${log4j.version}</version> </dependency> <!-- 格式化对象，方便输出日志 --> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.1.41</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>${slf4j.version}</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>${slf4j.version}</version> </dependency> <!-- 映入JSON --> <dependency> <groupId>org.codehaus.jackson</groupId> <artifactId>jackson-mapper-asl</artifactId> <version>1.9.13</version> </dependency> <!-- 上传组件包 --> <dependency> <groupId>commons-fileupload</groupId> <artifactId>commons-fileupload</artifactId> <version>1.3.1</version> </dependency> <dependency> <groupId>commons-io</groupId> <artifactId>commons-io</artifactId> <version>2.4</version> </dependency> <dependency> <groupId>commons-codec</groupId> <artifactId>commons-codec</artifactId> <version>1.9</version> </dependency> </dependencies> <build> <finalName>Blog</finalName> <plugins> <!--MG的插件--> <plugin> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-maven-plugin</artifactId> <version>1.3.3</version> <configuration> <verbose>true</verbose> <overwrite>true</overwrite> </configuration> <dependencies> <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java 配置这个依赖主要是为了等下在配置MG的时候可以不用配置classPathEntry这样的一个属性，避免 代码的耦合度太高 --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.30</version> </dependency> </dependencies> </plugin> </plugins> </build></project>配置完插件后，在IDEA中配置运行Mybatis-Generator插件的方法：
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