Maven项目管理:SpringMVC+Mybatis+Velocity整合笔记

Maven创建项目

配置Spring MVC

导入Spring MVC 需要的包
在pom.xml 文件下加入:

   <!-- spring mvc begin -->
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-webmvc</artifactId>
    <version>3.2.6.RELEASE</version>
</dependency>
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-context-support</artifactId>
    <version>3.2.6.RELEASE</version>
</dependency>
<!-- spring mvc end -->

添加baseweb-servlet.xml文件
在WEB-INF 目录下添加baseweb-servlet.xml文件,启用注解和添加自动包扫描

<!-- 启用springmvc注解 -->
<context:annotation-config />

<!-- 配置扫描路径 -->
<context:component-scan base-package="net.admol.baseweb"></context:component-scan>

更多详细可参考使用springMVC实现简单的登录例子

添加Velocity

在pom.xml 文件下加入:

<!-- velocity begin -->
<dependency>
    <groupId>org.apache.velocity</groupId>
    <artifactId>velocity</artifactId>
    <version>1.6.2</version>
</dependency>
<dependency>
    <groupId>org.apache.velocity</groupId>
    <artifactId>velocity-tools</artifactId>
    <version>1.3</version>
</dependency>
<!-- velocity end -->

在baseweb-servlet.xml文件加入velocity配置:

<!-- velocity view config -->
<bean id="velocityViewResolver"
	class="org.springframework.web.servlet.view.velocity.VelocityLayoutViewResolver">
	<property name="cache" value="true" />
	<property name="exposeSpringMacroHelpers" value="true" />
	<property name="requestContextAttribute" value="true" />
	<property name="exposeSessionAttributes" value="true" />
	<property name="prefix" value=""></property>
	<property name="order" value="1"></property>
	<property name="allowSessionOverride" value="true"></property>
	<property name="viewNames">
		<list>
			<value>*.vm</value>
			<value>*.htm</value>
		</list>
	</property>
	<property name="contentType" value="text/html; charset=UTF-8"></property>
	<property name="toolboxConfigLocation" value="/WEB-INF/config/velocity-toolbox.xml"></property>
	<property name="viewClass"
		value="org.springframework.web.servlet.view.velocity.VelocityLayoutView" />
	<property name="layoutUrl" value="layout/layout.vm" />
</bean>

<bean id="velocityConfig"
	class="org.springframework.web.servlet.view.velocity.VelocityConfigurer">
	<property name="resourceLoaderPath" value="/WEB-INF/velocity/" />
	<property name="velocityProperties">
		<props>
			<prop key="input.encoding">UTF-8</prop>
			<prop key="output.encoding">UTF-8</prop>
			<prop key="parser.pool.size">100</prop>
			<prop key="velocimacro.library">macros/macros.vm</prop>
			<prop key="velocimacro.library.autoreload">true</prop>
		</props>
	</property>
</bean>

添加 velocity-toolbox.xml 文件
在 /src/main/webapp/WEB-INF 目录下添加一个 config 目录,在config下添加一个名为velocity-toolbox.xml的文件:

<?xml version="1.0"?>
<toolbox>	
	<tool>
		<key>dateTool</key>
		<scope>request</scope>
		<class>org.apache.velocity.tools.generic.DateTool</class>
	</tool>
</toolbox>

添加layout.vm
在 /src/main/webapp/WEB-INF 目录下添加一个 velocity 目录,velocity目下添加一个layout目录,目录下新建一个layout.vm文件,内容如:

<!DOCTYPE HTML>
<html>
<head>
	<meta charset="UTF-8">	
	<title>admol</title>
</head>
<body class="warp">
	<div class="container">
		<div class="content">
			${screen_content}
		</div>
	</div>
		</body>
</html>

配置macros.vm(非必须)
在/WEB-INF/velocity/macros/目录添加 macros.vm 文件

测试
Test.java

@Controller
public class Test {
	@RequestMapping(value = "/test.htm")
	public String test(ModelMap mdelMap) {
		mdelMap.addAttribute("test", "hello , this is velocity!");
		return "/testView/testVelocity.vm";
	}
}

编写页面
新建/velocity/testView/testVelocity.vm页面:

$!test

启动tomcat ,测试结果:
整合velocity测试结果

https://github.com/mybatis/generator/releases

整合Mybatis

引入包
在pom.xml文件加入:

   <!-- mysql -->
   <dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>5.1.31</version>
</dependency>

<!-- mybatis -->
   <dependency>
    <groupId>org.mybatis</groupId>
    <artifactId>mybatis-spring</artifactId>
    <version>1.2.2</version>
</dependency>
<dependency>
    <groupId>org.mybatis</groupId>
    <artifactId>mybatis</artifactId>
    <version>3.2.0</version>
</dependency>
   <dependency>
    <groupId>commons-dbcp</groupId>
    <artifactId>commons-dbcp</artifactId>
    <version>1.2</version>
</dependency>

<!-- spring jdbc -->
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-jdbc</artifactId>
    <version>3.2.6.RELEASE</version>
</dependency>

准备数据库
创建一个名为demo的数据库

<!-- 创建表 -->
CREATE TABLE `user` (
  `id` varchar(32) NOT NULL,
  `user_id` varchar(32) NOT NULL,
  `user_name` varchar(64) NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
<!-- 插入测试数据 -->
INSERT INTO `user` VALUES ('1', '1000', 'admol');

添加配置文件
在 /src/main/resources 下新建folder :spring ,新建 spring-dao.xml配置文件:

<?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: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/tx
      		http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
			http://www.springframework.org/schema/aop 
           http://www.springframework.org/schema/aop/spring-aop-3.0.xsd"
	default-autowire="byName">

	<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"  
        destroy-method="close">  
        <property name="driverClassName" value="com.mysql.jdbc.Driver" />  
        <property name="url" value="jdbc:mysql://127.0.0.1:3306/demo" />  
        <property name="username" value="test" />  
        <property name="password" value="123456" />  
        <!-- 初始化连接大小 -->  
        <property name="initialSize" value="5"></property>  
        <!-- 连接池最大数量 -->  
        <property name="maxActive" value="20"></property>  
        <!-- 连接池最大空闲 -->  
        <property name="maxIdle" value="20"></property>  
        <!-- 连接池最小空闲 -->  
        <property name="minIdle" value="1"></property>  
        <!-- 获取连接最大等待时间 -->  
        <property name="maxWait" value="60000"></property>  
    </bean>  

   	<!--  spring和MyBatis完美整合，不需要mybatis的配置映射文件   -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">  
        <property name="dataSource" ref="dataSource" />  
		<!-- 自动扫描mapper.xml文件   -->
        <property name="mapperLocations" value="classpath:sqlmap/*.xml"></property>  
    </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="net.admol.baseweb.dal.dao" />  
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>  
    </bean>
</beans>

在web.xml加入:

<listener>
	<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
	<param-name>contextConfigLocation</param-name>
	<param-value>
		classpath*:spring/*.xml
	</param-value>
</context-param>

生成do、DAO、Mapping
在 /src/main/resources 下新建folder : sqlmap,
新建包net.admol.baseweb.dal.dao和net.admol.baseweb.dal.dateobject
配置 Mybatis-generator.xml 点击查看代码
下载相应包:mybatis-generator-core-1.3.2.jar和mysql-connector-java-5.1.31.jar并与generatorConfig.xml文件位于同一目录下,
然后执行命令java -jar mybatis-generator-core-x.x.x.jar -configfile generatorConfig.xml -overwrite 更多命令使用

测试
修改 Test.java:

@Controller
public class Test {
	@Autowired
	private UserMapper userMapper;

	@RequestMapping(value = "/test.htm")
	public String test(ModelMap mdelMap) {
		mdelMap.addAttribute("test", "hello , this is velocity!!!");
		testDB(mdelMap);
		return "/testView/testVelocity.vm";
	}

	public void testDB(ModelMap mdelMap) {
		UserExample ss = new UserExample();
		ss.createCriteria().andUserIdEqualTo("1000");
		List<User> list = userMapper.selectByExample(ss);
		mdelMap.addAttribute("list", list);
		System.out.println("测试结果size:" + list.size());
	}
}

修改 testVelocity.vm:

$!test

#foreach($userInfo in $!list)
	</br>
	$!{velocityCount}.	$!userInfo.userName 
#end

启动romcat,输入http://localhost:8080/baseweb/test.htm,测试结果:
整合Mybatis测试结果
成功访问数据库!