SSM框架整合（IntellIj IDEA+Maven+Spring+SpringMVC+MyBatis）之MyBatis
我认为框架整合不熟练的话按照MyBatis->SpringMVC->Spring顺序整合比较好，先配置MyBatis是因为不需要额外的配置服务器，进行单元测试比较容易。Spring是用来进行整合的，所以等其它框架配置好之后进行整合不会显得很乱。
1. IntelliJ IDEA搭建Maven项目
新建完项目之后就是下面这样一个空项目
按规范搭建一个项目结构，src下面分为main和test，main放正式代码和正式资源配置文件，test下放测试代码和测试资源文件
然后右键给项目设置属性，main下面的java设置为sources root，resources设置为resources root；test下面的java设置为test resources root，resources设置为test resources root，idea打包是分类打包的，比如说java文件里是方代码的就不能方配置文件，不然打包的时候配置文件没有包含进去，同样的测试文件里不能放正式代码。
要先设置好各个文件的属性才能建包，没设置好属性右键就没有package这个选项，如果点击了directory建立的是目录，名字为com.xxx.xxx的目录，不是层叠的包，必须在sources root状态下才有建包的选项。
2. 配置MyBatis
2.1. 导包
配置pom.xml的时候注意包的使用范围，也就是scope属性。有一次做项目报错就是因为这个。当时项目要做一个邮件验证功能，我就用javaEE自带的邮件包来做，测试的时候好好的能发送，但是发布到服务器上的时候就不能发送。检查了好久才发现是javaee-api设置的范围是provided，也就是不打包发布到服务器上，我就把provided给删了，默认为compile打包到服务器，然后发现连启动服务器都报错了。经过仔细排查发现是javaee-api自带的servlet包和tomcat自带的servlet包冲突了，所以我又把javaee-api的范围给改回provided，邮件要用的包再单独添加，这下才彻底解决了。
<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>4.0.0modelVersion>
<groupId>com.overridere.webgroupId>
<artifactId>blogmanageartifactId>
<packaging>warpackaging>
<version>1.0-SNAPSHOTversion>
<name>blogmanage Maven Webappname>
<url>http://maven.apache.orgurl>
<properties>
<project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8project.reporting.outputEncoding>
properties>
<dependencies>
<dependency>
<groupId>javaxgroupId>
<artifactId>javaee-apiartifactId>
<version>7.0version>
<scope>providedscope>
dependency>
<dependency>
<groupId>org.glassfish.webgroupId>
<artifactId>javax.servlet.jsp.jstlartifactId>
<version>1.2.2version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-coreartifactId>
<version>4.2.6.RELEASEversion>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-beansartifactId>
<version>4.2.6.RELEASEversion>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-contextartifactId>
<version>4.2.6.RELEASEversion>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-context-supportartifactId>
<version>4.2.6.RELEASEversion>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-webartifactId>
<version>4.2.6.RELEASEversion>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-webmvcartifactId>
<version>4.2.6.RELEASEversion>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-aopartifactId>
<version>4.2.6.RELEASEversion>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-expressionartifactId>
<version>4.2.6.RELEASEversion>
dependency>
<dependency>
<groupId>commons-logginggroupId>
<artifactId>commons-loggingartifactId>
<version>1.2version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-aspectsartifactId>
<version>4.2.6.RELEASEversion>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-ormartifactId>
<version>4.2.6.RELEASEversion>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-jdbcartifactId>
<version>4.2.6.RELEASEversion>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-txartifactId>
<version>4.2.6.RELEASEversion>
dependency>
<dependency>
<groupId>org.springframework.batchgroupId>
<artifactId>spring-batch-infrastructureartifactId>
<version>3.0.7.RELEASEversion>
dependency>
<dependency>
<groupId>commons-dbcpgroupId>
<artifactId>commons-dbcpartifactId>
<version>1.4version>
dependency>
<dependency>
<groupId>commons-logginggroupId>
<artifactId>commons-loggingartifactId>
<version>1.2version>
dependency>
<dependency>
<groupId>org.mybatisgroupId>
<artifactId>mybatisartifactId>
<version>3.4.2version>
dependency>
<dependency>
<groupId>org.mybatisgroupId>
<artifactId>mybatis-springartifactId>
<version>1.3.0version>
dependency>
<dependency>
<groupId>org.mybatis.generatorgroupId>
<artifactId>mybatis-generator-coreartifactId>
<version>1.3.5version>
dependency>
<dependency>
<groupId>mysqlgroupId>
<artifactId>mysql-connector-javaartifactId>
<version>5.1.8version>
dependency>
<dependency>
<groupId>log4jgroupId>
<artifactId>log4jartifactId>
<version>1.2.17version>
dependency>
<dependency>
<groupId>org.slf4jgroupId>
<artifactId>slf4j-log4j12artifactId>
<version>1.7.12version>
dependency>
<dependency>
<groupId>asmgroupId>
<artifactId>asmartifactId>
<version>3.3.1version>
dependency>
<dependency>
<groupId>cglibgroupId>
<artifactId>cglibartifactId>
<version>2.2.2version>
dependency>
<dependency>
<groupId>org.javassistgroupId>
<artifactId>javassistartifactId>
<version>3.18.1-GAversion>
dependency>
<dependency>
<groupId>com.fasterxml.jackson.coregroupId>
<artifactId>jackson-coreartifactId>
<version>2.8.0version>
dependency>
<dependency>
<groupId>com.fasterxml.jackson.coregroupId>
<artifactId>jackson-databindartifactId>
<version>2.8.0version>
dependency>
<dependency>
<groupId>junitgroupId>
<artifactId>junitartifactId>
<version>4.10version>
<scope>testscope>
dependency>
dependencies>
<build>
<finalName>blogmanagefinalName>
build>
project>
2.2. jdbc.properties配置文件
driver=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3306/blog
username=root
password=ying1995520***2.3编写MyBatis配置文件SqlMapConfig.xml
<configuration>
<properties resource="jdbc.properties" />
<settings>
<setting name="lazyLoadingEnabled" value="true" />
<setting name="aggressiveLazyLoading" value="false" />
<setting name="cacheEnabled" value="true" />
settings>
<typeAliases>
typeAliases>
<environments default="development">
<environment id="development">
<transactionManager type="JDBC" />
<dataSource type="POOLED">
<property name="driver" value="${driver}" />
<property name="url" value="${url}" />
<property name="username" value="${username}" />
<property name="password" value="${password}" />
dataSource>
environment>
environments>
<mappers>
<package name="com.jyh.mapper"/>
mappers>
configuration>2.4 使用Maven插件自动生成domain类、Mapper接口和Mapper.xml文件
2.4.1在pom.xml文件中引入插件
<build>
<finalName>blogmanagefinalName>
<plugins>
<plugin>
<groupId>org.mybatis.generatorgroupId>
<artifactId>mybatis-generator-maven-pluginartifactId>
<version>1.3.5version>
<configuration>
<verbose>trueverbose>
<overwrite>trueoverwrite>
configuration>
plugin>
plugins>
build>2.4.2 编写generatorConfig.xml配置文件
<generatorConfiguration>
<classPathEntry location="E:/JAVA/maven/mavenRepository/mysql/mysql-connector-java/5.1.8/mysql-connector-java-5.1.8.jar" />
<context id="wangyongzhi_mysql_tables" targetRuntime="MyBatis3">
<commentGenerator>
<property name="suppressAllComments" value="true" />
<property name="suppressDate" value="true" />
commentGenerator>
<jdbcConnection driverClass="com.mysql.jdbc.Driver"
connectionURL="jdbc:mysql://localhost:3306/blog"
userId="root"
password="ying1995520***">
jdbcConnection>
<javaTypeResolver >
<property name="forceBigDecimals" value="false" />
javaTypeResolver>
<javaModelGenerator targetPackage="com.jyh.domain" targetProject="src/main/java">
<property name="constructorBased" value="true"/>
<property name="enableSubPackages" value="true" />
<property name="trimStrings" value="true" />
javaModelGenerator>
<sqlMapGenerator targetPackage="com.jyh.mapper" targetProject="src/main/resources">
<property name="enableSubPackages" value="true" />
sqlMapGenerator>
<javaClientGenerator type="XMLMAPPER" targetPackage="com.jyh.mapper" targetProject="src/main/java">
<property name="enableSubPackages" value="true" />
javaClientGenerator>
<table schema="blog" tableName="article" domainObjectName="Article"
enableCountByExample="false" enableUpdateByExample="false"
enableDeleteByExample="false" enableSelectByExample="false"
selectByExampleQueryId="false">
table>
<table schema="blog" tableName="user" domainObjectName="User"
enableCountByExample="false" enableUpdateByExample="false"
enableDeleteByExample="false" enableSelectByExample="false"
selectByExampleQueryId="false">
table>
<table schema="blog" tableName="comment" domainObjectName="Comment"
enableCountByExample="false" enableUpdateByExample="false"
enableDeleteByExample="false" enableSelectByExample="false"
selectByExampleQueryId="false">
table>
context>
generatorConfiguration>
2.4.3 运行插件
2.4.4 运行结果：
3. 单元测试运行结果：
