标签:style blog http java color 使用
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
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<? xml
version = "1.0"
encoding = "UTF-8" ?> < web-app
version = "2.5" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee < 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:
<
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
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<? xml
version = "1.0"
encoding = "UTF-8" ?> 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
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<? xml
version = "1.0"
encoding = "UTF-8" ?> xsi:schemaLocation=" < bean
id = "userService"
class = "com.sxt.service.UserService" > < property
name = "userDao"
ref = "userDao" ></ property > </ bean > </ beans > |
下面是hib-config.xml
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<? xml
version = "1.0"
encoding = "UTF-8" ?> 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 = "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
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<? xml
version = "1.0"
encoding = "UTF-8" ?> 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
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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
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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
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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。
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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
http://locahost:8080/springmvc01/user.do?uname=zhangsan。
结果:数据库中增加zhangsan的记录。页面跳转到index.jsp上,显示:
SpringMVC轻松学习-环境搭建(二),码迷,mamicode.com
标签:style blog http java color 使用
原文地址:http://www.cnblogs.com/wang3680/p/bb17e9d4c29eb5038f016578140d893a.html