基于 spring2.5 的采用 XML 配置的 spring MVC 项目
注：本项目全部基于XML配置。同时，集成了hibernate。采用的是：spring MVC+hibernate+spring的开发架构。
1. 建立web项目
2. 导入jar包(spring.jar, spring-webmvc.jar, commons-logging.jar。其他jar包为hibernate相关jar包)
上面是SpringMVC的所有包，我将这些jar包放在了我的百度云盘中，当然你也可以去百度搜索，下面就是正文了。。。。
下面我们先配置web.xml
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | <? xml version = "1.0" encoding = "UTF-8" ?> < web-app version = "2.5" xmlns = "" xmlns:xsi = "" xsi:schemaLocation=" ">> < servlet > < servlet-name >dispatcherServlet</ servlet-name > < servlet-class > org.springframework.web.servlet.DispatcherServlet </ servlet-class > < init-param > < param-name >contextConfigLocation</ param-name > < param-value >/WEB-INF/hib-config.xml,/WEB-INF/web-config.xml,/WEB-INF/service-config.xml,/WEB-INF/dao-config.xml</ param-value > </ init-param > < load-on-startup >1</ load-on-startup > </ servlet > < servlet-mapping > < servlet-name >dispatcherServlet</ servlet-name > < url-pattern >*.do</ url-pattern > </ servlet-mapping > </ web-app > |
配置说明：
- 核心控制器为org.springframework.web.servlet.DispatcherServlet
- 然后就是控制的是*.do的进行过滤，这些和Struts2的其实是一样的。
- 然后就是<init-param>里面的是Spring的配置文件
<load-on-startup>项目被加载的时候就启动他的初始化方法这里的配置文件web-config.xml其实和struts2-config.xml一样的作用
下面介绍web-config.xml文件
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 | <? xml version = "1.0" encoding = "UTF-8" ?> < beans xmlns = "" xmlns:xsi = "" xsi:schemaLocation=" "> <!-- Controller方法调用规则定义 --> < bean id = "paraMethodResolver" class = "org.springframework.web.servlet.mvc.multiaction.ParameterMethodNameResolver" > < property name = "paramName" value = "action" /> < property name = "defaultMethodName" value = "list" /> </ bean > <!-- 页面View层基本信息设定 --> < bean id = "viewResolver" class = "org.springframework.web.servlet.view.InternalResourceViewResolver" > < property name = "viewClass" value = "org.springframework.web.servlet.view.JstlView" /> <!--<property name="prefix" value="/myjsp/"/>--> < property name = "suffix" value = ".jsp" /> </ bean > <!-- servlet映射列表,所有控制层Controller的servlet在这里定义 --> < bean id = "urlMapping" class = "org.springframework.web.servlet.handler.SimpleUrlHandlerMapping" > < property name = "mappings" > < props > < prop key = "user.do" >userController</ prop > </ props > </ property > </ bean > < bean id = "userController" class = "com.sxt.action.UserController" > < property name = "userService" ref = "userService" ></ property > </ bean > </ beans > |
view层：包括前缀和后缀，其中后缀是说，我们返回一个如a，则后面就直接是.jsp，直接给你配置a.jsp；前缀的话，如返回的是a，则默认给你添加一个前缀为/myjsp/a.jsp，这些都是默认的
之后是service-config.xml，主要是配置业务逻辑层的bean
| 1 2 3 4 5 6 7 8 9 10 11 12 | <? xml version = "1.0" encoding = "UTF-8" ?> < beans xmlns = "" xmlns:xsi = "" xsi:schemaLocation=" "> < bean id = "userService" class = "com.sxt.service.UserService" > < property name = "userDao" ref = "userDao" ></ property > </ bean > </ beans > |
下面是hib-config.xml
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 | <? xml version = "1.0" encoding = "UTF-8" ?> < beans xmlns = "" xmlns:xsi = "" xmlns:aop = "" xmlns:tx = "" xmlns:context = "" xsi:schemaLocation=" "> < context:component-scan base-package = "com.sxt" /> <!-- 支持aop注解 --> < aop:aspectj-autoproxy /> < bean id = "dataSource" class = "org.apache.commons.dbcp.BasicDataSource" > < property name = "driverClassName" value = "com.mysql.jdbc.Driver" > </ property > < property name = "url" value = "jdbc:mysql://localhost:3306/myhib" ></ property > < property name = "username" value = "root" ></ property > < property name = "password" value = "123456" ></ property > </ bean > < bean id = "sessionFactory" class = "org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean" > < property name = "dataSource" > < ref bean = "dataSource" /> </ property > < property name = "hibernateProperties" > < props > <!-- key的名字前面都要加hibernate. --> < prop key = "hibernate.dialect" > org.hibernate.dialect.MySQLDialect </ prop > < prop key = "hibernate.show_sql" >true</ prop > < prop key = "hibernate.hbm2ddl.auto" >update</ prop > </ props > </ property > < property name = "packagesToScan" > < value >com.sxt.po</ value > </ property > </ bean > < bean id = "hibernateTemplate" class = "org.springframework.orm.hibernate3.HibernateTemplate" > < property name = "sessionFactory" ref = "sessionFactory" ></ property > </ bean > <!--配置一个JdbcTemplate实例--> < bean id = "jdbcTemplate" class = "org.springframework.jdbc.core.JdbcTemplate" > < property name = "dataSource" ref = "dataSource" /> </ bean > <!-- 配置事务管理 --> < bean id = "txManager" class = "org.springframework.orm.hibernate3.HibernateTransactionManager" > < property name = "sessionFactory" ref = "sessionFactory" ></ property > </ bean > < tx:annotation-driven transaction-manager = "txManager" /> < aop:config > < aop:pointcut expression = "execution(public * com.sxt.service.impl.*.*(..))" id = "businessService" /> < aop:advisor advice-ref = "txAdvice" pointcut-ref = "businessService" /> </ aop:config > < tx:advice id = "txAdvice" transaction-manager = "txManager" > < tx:attributes > < tx:method name = "find*" read-only = "true" propagation = "NOT_SUPPORTED" /> <!-- get开头的方法不需要在事务中运行 。 有些情况是没有必要使用事务的，比如获取数据。开启事务本身对性能是有一定的影响的--> < tx:method name = "*" /> <!-- 其他方法在实务中运行 --> </ tx:attributes > </ tx:advice > </ beans > |
dao-config.xml
| 1 2 3 4 5 6 7 8 9 10 11 | <? xml version = "1.0" encoding = "UTF-8" ?> < beans xmlns = "" xmlns:xsi = "" xsi:schemaLocation=" "> < bean id = "userDao" class = "com.sxt.dao.UserDao" > < property name = "hibernateTemplate" ref = "hibernateTemplate" ></ property > </ bean > </ beans > |
包的结构为下面：
user.java
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 | package com.sxt.po; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.GenerationType; import javax.persistence.Id; @Entity public class User { @Id @GeneratedValue (strategy=GenerationType.AUTO) private int id; private String uname; public int getId() { return id; } public void setId( int id) { this .id = id; } public String getUname() { return uname; } public void setUname(String uname) { this .uname = uname; } } |
UserDao.java
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | package com.sxt.dao; import org.springframework.orm.hibernate3.HibernateTemplate; import com.sxt.po.User; public class UserDao { private HibernateTemplate hibernateTemplate; public void add(User u){ System.out.println( "UserDao.add()" ); hibernateTemplate.save(u); } public HibernateTemplate getHibernateTemplate() { return hibernateTemplate; } public void setHibernateTemplate(HibernateTemplate hibernateTemplate) { this .hibernateTemplate = hibernateTemplate; } } |
UserService.java
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 | package com.sxt.service; import com.sxt.dao.UserDao; import com.sxt.po.User; public class UserService { private UserDao userDao; public void add(String uname){ System.out.println( "UserService.add()" ); User u = new User(); u.setUname(uname); userDao.add(u); } public UserDao getUserDao() { return userDao; } public void setUserDao(UserDao userDao) { this .userDao = userDao; } } |
UserController.java 这里一般是叫controller，而且是实现controller接口我们可以看见接口controller的实现是怎样的 
其实controller是实现的HttpServletRequest和HttpServletResponse方法，很像servlet一样。ModelAndView是MVC中的M和V就是数据和视图，比如我们跳转到ok.jsp中有页面还得有数据。 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 | package com.sxt.action; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.web.servlet.ModelAndView; import org.springframework.web.servlet.mvc.Controller; import com.sxt.service.UserService; public class UserController implements Controller { private UserService userService; @Override public ModelAndView handleRequest(HttpServletRequest req, HttpServletResponse resp) throws Exception { System.out.println( "HelloController.handleRequest()" ); req.setAttribute( "a" , "aaaa" ); userService.add(req.getParameter( "uname" )); return new ModelAndView( "index" ); } public UserService getUserService() { return userService; } public void setUserService(UserService userService) { this .userService = userService; } } |
controller层中我们返回的是new ModelAndView("index")；这就对应我们之前说的前缀和后缀的问题，这里就会跳转到index.jsp中 运行测试：
。
结果：数据库中增加zhangsan的记录。页面跳转到index.jsp上，显示：
