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[Java教程]spring mvc4.1.6 + spring4.1.6 + hibernate4.3.11 + mysql5.5.25 开发环境搭建及相关说明


一、准备工作

开始之前,先参考上一篇:

struts2.3.24 + spring4.1.6 + hibernate4.3.11 + mysql5.5.25 开发环境搭建及相关说明

思路都是一样的,只不过把struts2替换成了spring mvc

二、不同的地方

工程目录及jar包:

action包改成controller;

删除struts2 jar包,添加spring mvc包(已有的话,不需添加);

   

web.

跟之前不同的地方是把struts2的过滤器替换成了一个servlet,主要目的是路由url,交给spring mvc处理;

<??><web-app ="http://www.w3.org/2001/ ="http://java.sun.com/ xsi:schemaLocation="http://java.sun.com/ id="WebApp_ID" version="3.0"> <display-name>SSH</display-name> <context-param>   <param-name>contextConfigLocation</param-name>   <param-value>classpath:applicationContext.</param-value> </context-param> <listener>   <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <welcome-file-list>   <welcome-file>index.jsp</welcome-file> </welcome-file-list> <servlet>   <servlet-name>springmvc</servlet-name>   <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>   <init-param>     <param-name>contextConfigLocation</param-name>     <param-value>classpath:springmvc-servlet.</param-value>   </init-param>   <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping>   <servlet-name>springmvc</servlet-name>   <url-pattern>*.do</url-pattern> </servlet-mapping></web-app>

applicationContext.

不同的地方主要是配置自动扫描的时候,要排除@Controller组件,这些bean是由spring mvc 去生成的;

其它配置跟前一篇一样;

<??><beans ="http://www.springframework.org/schema/beans"    ="http://www.springframework.org/schema/p"    ="http://www.springframework.org/schema/context"    ="http://www.springframework.org/schema/tx"    ="http://www.w3.org/2001/    ="http://www.springframework.org/schema/aop"    ="http://www.springframework.org/schema/jdbc"    xsi:schemaLocation="      http://www.springframework.org/schema/beans      http://www.springframework.org/schema/beans/spring-beans.xsd      http://www.springframework.org/schema/aop      http://www.springframework.org/schema/aop/spring-aop.xsd      http://www.springframework.org/schema/tx      http://www.springframework.org/schema/tx/spring-tx-4.1.xsd      http://www.springframework.org/schema/jdbc      http://www.springframework.org/schema/jdbc/spring-jdbc-4.1.xsd      http://www.springframework.org/schema/context      http://www.springframework.org/schema/context/spring-context-4.1.xsd">    <!-- scans the classpath for annotated components (including @Repostory   and @Service that will be auto-registered as Spring beans -->       <context:component-scan base-package="ssh" >    <!--排除@Controller组件,该组件由SpringMVC配置文件扫描 -->    <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller" />  </context:component-scan>  <!--配数据源 -->  <bean name="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close">    <property name="driverClass" value="com.mysql.jdbc.Driver" />    <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/demo" />    <property name="user" value="root" />    <property name="password" value="root" />        <property name="acquireIncrement" value="1"></property>     <property name="initialPoolSize" value="80"></property>     <property name="maxIdleTime" value="60"></property>     <property name="maxPoolSize" value="80"></property>     <property name="minPoolSize" value="50"></property>     <property name="acquireRetryDelay" value="1000"></property>     <property name="acquireRetryAttempts" value="60"></property>     <property name="breakAfterAcquireFailure" value="false"></property>    <!-- 如出现Too many connections, 注意修改mysql的配置文件my.ini,增大最多连接数配置项,(查看当前连接命令:show processlist) -->  </bean>    <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">    <property name="dataSource" ref="dataSource" />    <property name="hibernateProperties">      <props>        <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>        <prop key="hibernate.show_sql">true</prop>        <prop key="hibernate.hbm2ddl.auto">update</prop>        <prop key="connection.pool_size">10</prop>        <prop key="current_session_context_class">thread</prop>        <prop key="hibernate.cache.use_second_level_cache">true</prop>        <prop key="hibernate.cache.region.factory_class">org.hibernate.cache.ehcache.EhCacheRegionFactory</prop>        <prop key="hibernate.cache.use_query_cache">true</prop>        <prop key="hibernate.cache.provider_configuration_file_resource_path">ehcache.</prop>      </props>    </property>    <property name="mappingLocations">       <list>        <value>classpath:ssh/model/User.hbm.</value>       </list>     </property>     <!--     <property name="annotatedClasses">      <list>        <value>ssh.model.User</value>      </list>    </property>    -->  </bean>    <!-- 配置事务管理器 -->  <bean id="transactionManager"    class="org.springframework.orm.hibernate4.HibernateTransactionManager">    <property name="sessionFactory" ref="sessionFactory" />  </bean>    <!-- 事务的传播特性 -->  <tx:advice id="txadvice" transaction-manager="transactionManager">    <tx:attributes>      <tx:method name="add*" propagation="REQUIRED" read-only="false" rollback-for="java.lang.Exception"/>      <tx:method name="delete*" propagation="REQUIRED" read-only="false" rollback-for="java.lang.Exception"/>      <tx:method name="update*" propagation="REQUIRED" read-only="false" rollback-for="java.lang.Exception"/>      <tx:method name="save*" propagation="REQUIRED" read-only="false" rollback-for="java.lang.Exception"/>    </tx:attributes>  </tx:advice>    <aop:config>    <aop:pointcut id="pcMethod" expression="execution(* ssh.service..*.*(..))" />    <aop:advisor pointcut-ref="pcMethod" advice-ref="txadvice" />  </aop:config>           <!-- 自定义aop处理 测试 -->  <bean id="aopTest" class="ssh.aop.AopTest"></bean>  <bean id="myAop" class="ssh.aop.MyAop"></bean>  <aop:config proxy-target-class="true">    <aop:aspect ref="myAop">      <aop:pointcut id="pcMethodTest" expression="execution(* ssh.aop.AopTest.test*(..))"/>      <aop:before pointcut-ref="pcMethodTest" method="before"/>      <aop:after pointcut-ref="pcMethodTest" method="after"/>    </aop:aspect>  </aop:config>   </beans>

springmvc-servlet.

配置自动扫描ssh.controller包下的@Controller,这里要恢复applicationContext.

配置视图解析器,有很多解析器,这里以InternalResourceViewResolver为例;

<??><beans ="http://www.springframework.org/schema/beans"  ="http://www.springframework.org/schema/context"  ="http://www.springframework.org/schema/mvc"  ="http://www.springframework.org/schema/p"  ="http://www.w3.org/2001/  ="http://www.springframework.org/schema/tx"  xsi:schemaLocation="    http://www.springframework.org/schema/beans       http://www.springframework.org/schema/beans/spring-beans-4.1.xsd    http://www.springframework.org/schema/context    http://www.springframework.org/schema/context/spring-context-4.1.xsd    http://www.springframework.org/schema/mvc    http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd    http://www.springframework.org/schema/tx    http://www.springframework.org/schema/tx/spring-tx-4.1.xsd    ">      <!-- 启动自动扫描该包下所有的Bean(例如@Controller) -->  <context:component-scan base-package="ssh.controller" >    <!-- 恢复父容器设置的 exclude-filter,注意包扫描路径ssh.controller-->    <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller" />   </context:component-scan>    <!-- 定义视图解析器 -->  <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">    <property name="prefix">      <value>/WEB-INF/jsp/</value>    </property>    <property name="suffix">      <value>.jsp</value>    </property>  </bean>  </beans>

编写controller:

由于使用spring mvc替换struts2,也就没有了action包了,删除,并新建controller包,在包下新建UserController类;

@RequestMapping:映射url;

@ResponseBody:内容直接作为body返回;

UserController.java

package ssh.controller;import java.io.PrintWriter;import java.util.List;import javax.annotation.Resource;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.apache.log4j.Logger;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.ResponseBody;import ssh.aop.AopTest;import ssh.model.User;import ssh.service.UserService;import com.google.gson.Gson;@Controller@RequestMapping("/user")public class UserController {  Logger logger = Logger.getLogger(UserController.class);  @Resource  private UserService userService;  @Resource  private AopTest aopTest;    @RequestMapping(value="/addUser")  @ResponseBody  public void addUser(HttpServletRequest request, HttpServletResponse response){    PrintWriter out = null;    try{      response.setContentType("text/html;charset=UTF-8");      String account = request.getParameter("account");      String name = request.getParameter("name");      String address = request.getParameter("address");       User user = new User();      user.setAccount(account);      user.setAddress(address);      user.setName(name);      userService.add(user);      out = response.getWriter();      out.write(new Gson().toJson("success"));    }catch(Exception e){      e.printStackTrace();      logger.error(e.getMessage());      if(out != null)        out.write(new Gson().toJson("fail"));    }finally{      out.flush();      out.close();    }      }    @RequestMapping(value="/queryUser")  @ResponseBody  public void queryAllUser(HttpServletRequest request, HttpServletResponse response){    PrintWriter out = null;        aopTest.test1();    aopTest.test2();        try {      response.setContentType("text/html;charset=UTF-8");        Gson gson = new Gson();      List<User> userList= userService.queryAllUser();      String gsonStr = gson.toJson(userList);            out = response.getWriter();      out.write(gsonStr);    } catch (Exception e) {      e.printStackTrace();      logger.error(e.getMessage());      if(out != null)        out.write(new Gson().toJson("fail"));    }finally{      out.flush();      out.close();    }  }}

三、运行程序

运行程序,添加用户、查询用户功能正常;

另外二级缓存也正常工作,第二次查询已经没有操作数据库了;