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

Posted 精灵王

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Maven创建项目

略…具体过程可参考用Maven创建第一个web项目

配置Spring MVC

  1. 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 -->

     

     
  2. 添加baseweb-servlet.xml文件在WEB-INF 目录下,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

    1. 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 -->
       
    2. 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>
       
    3. 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>
       
    4. 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)
    /WEB-INF/velocity/macros/目录添加 macros.vm 文件

  1. 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,访问test页面路径,访问结果略;

整合Mybatis

  1. 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>
     
  2. 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\');
     
  3. 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>
    

    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>
     
  4. 自动生成DO、DAO、Mapping xml等文件

    在 /src/main/resources 下新建folder : sqlmap

    新建包net.admol.baseweb.dal.daonet.admol.baseweb.dal.dateobject,配置 Mybatis-generator.xml(具体如何配置请自行搜索) ;

    下载相应包:mybatis-generator-core-1.3.2.jarmysql-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

  5. 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&lt;User&gt; 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Tomcat,输入页面访问路径http://localhost:8080/baseweb/test.htm,测试结果:整合Mybatis测试结果成功访问数据库!

图略! 

 

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