| 上传(创建文件路径等) |
|
|
public void upload(String savePaths) throws Exception{
String path = ServletActionContext.getServletContext().getRealPath(savePaths);
String fileName = this.getFileName();
File dir = new File(path);
if(!dir.exists()){
dir.mkdir();
}
String outPath = path+"\\"+fileName;
FileOutputStream out = new FileOutputStream(outPath);
FileInputStream in = new FileInputStream(this.getUpload());
byte[] buffer= new byte[4069];
int len = -1;
while((len = in.read(buffer))>0){
out.write(buffer, 0, len);
}
out.flush();
in.close();
out.close();
this.uploadFileName = fileName;
this.savePath = savePaths;
ActionContext.getContext().getSession().put("fileName", fileName);
ActionContext.getContext().getSession().put("fileType", this.getUploadContentType());
ActionContext.getContext().getSession().put("filePath", outPath);
}
public String getFileName() throws Exception{
int index = this.getUploadFileName().lastIndexOf(".");
String extension = this.getUploadFileName().substring(index);
int randName = new Random().nextInt(100);
return System.currentTimeMillis()+randName+extension;
}
|
| Spring配置---Bean(ApplicationContext) |
applicationcontext |
|
<?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" xmlns:context="http://www.springframework.org/schema/context"
xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-2.5.xsd
http://www.springframework.org/schema/util
http://www.springframework.org/schema/util/spring-util-2.5.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">
<!-- jdbc方式获取数据源 -->
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/hibernate"/>
<property name="username" value="root"/>
<property name="password" value="637562588"/>
</bean>
<!-- Jndi方式获取数据源(能够实现连接池) -->
<bean id="dataSource" class="org.springframework.jndi.JndiObjectFactoryBean">
<property name="jndiName" value="bm"></property>
<property name="resourceRef" value="false"></property>
<property name="jndiEnvironment">
<props>
<prop key="java.naming.provider.url">t3://localhost:7001</prop>
<prop key="java.naming.factory.initial">weblogic.jndi.WLInitialContextFactory</prop>
</props>
</property>
</bean>
<!-- 与Hibernate整合，配置sessionFactory -->
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
<prop key="hibernate.connection.release_mode">auto</prop>
<prop key="hibernate.bytecode.user_reflection_optimizer">true</prop>
<prop key="connection.provider_class">org.hibernate.connection.ProxoolConnectionPrvoider
</prop>
<prop key="hibernate.cache.provider_class">org.hibernate.cache.EhCacheProvider</prop>
<prop key="hibernate.cache.use_query_cache">false</prop>
<prop key="hibernate.cache.use_second_level_cache">false</prop>
<prop key="hibernate.query.factory_class">org.hibernate.hql.classic.ClassicQueryTranslatorFactory
</prop>
<prop key="hibernate.jdbc.fetch_size">0</prop>
<prop key="hibernate.jdbc.batch_size">0</prop>
<prop key="hibernate.default_batch_size">0</prop>
<prop key="hibernate.genernate_statistics">false</prop>
<prop key="hibernate.connection.autocommit">false</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="javax.persistence.validation.mode">none</prop>
</props>
</property>
<property name="mappingResources">
<list>
<value>com/tifa/bookmark/beans/User.hbm.xml</value>
<value>com/tifa/bookmark/beans/Bookmark.hbm.xml</value>
</list>
</property>
</bean>
<bean id="userDAO" class="com.tifa.bookmark.dao.UserDao">
<property name="hibernateTemplate" ref="hibernageTemplate" />
</bean>
<bean id="bookmarkDAO" class="com.tifa.bookmark.dao.BookmarkDao">
<property name="hibernateTemplate" ref="hibernageTemplate" />
</bean>
<!-- hibernate的事务管理类 -->
<bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"></property>
</bean>
<!-- 事务模板类 -->
<bean id="transactionTemplate" class="org.springframework.transaction.support.TransactionTemplate">
<constructor-arg ref="transactionManager"/>
</bean>
<bean id="hibernageTemplate" class="org.springframework.orm.hibernate3.HibernateTemplate">
<property name="sessionFactory" ref="sessionFactory"></property>
</bean>
<bean id="userDaoProxy" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
<property name="proxyInterfaces">
<list>
<value>com.tifa.bookmark.Idao.IUserDao</value>
</list>
</property>
<property name="target" ref="userDAO"></property>
<property name="transactionManager" ref="transactionManager"/>
<property name="transactionAttributes">
<props>
<prop key="insert*">PROPAGATION_REQUIRED</prop>
<prop key="update*">PROPAGATION_REQUIRED</prop>
</props>
</property>
</bean>
</beans>
|
| Spring配置---MVC |
mvc-config |
|
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">
<!-- view(试图)层解析、即指定路径，以及试图文件的后缀，但是结果的试图文件的名称就要根据不同的Controller所返回的名称决定 -->
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/"></property>
<property name="suffix" value=".jsp"/>
</bean>
<!--
当前台有请求传过来的时候，前端控制器就会在这里查找相对应的Controller类来处理(传参并返回ModelAndView)。
由于Spring MVC 默认是使用BeanNameUrlHandlerMapping这一个类来决定请求由哪个bean(也就是Controller类)。
如果是用这种方法的话，就不需要在当前文件中声明该BeanNameUrlHandlerMapping 的bean<若是使用这种方法，则
每个Controller的bean的name属性就等于各自请求的名称，如：处理名为/hello.action请求的Controller类的bean的name="/hello.action">
，这种方法一般适合小程序，因此在这里就没有使用到这种方法。(除了BeanNameUrlHandlerMapping这种外，还有SimpleUrlHandlerMapping以及
ControllerClassNameHandlerMapping。这里使用的是SimpleUrlHandlerMapping)：
-->
<bean id="urlHandlerMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
<property name="mappgings">
<props>
<prop key="/course.action">courseController</prop>
</props>
</property>
</bean>
<!-- 一个Controller处理多个请求，不同请求不同的处理方法，因此以下的bean就是配置不同的请求不同的处理方法名称 -->
<bean id="paraMethodResolver" class="org.springframework.web.servlet.mvc.multiaction.ParameterMethodNameResolver">
<!-- 根据表单传过来的type属性的值来决定不同的 方法来处理 -->
<property name="paramName" value="type"/>
</bean>
<!--
由于Controller里主要处理页面的请求(过于繁忙)，因而Controller里不太适合有太多的业务逻辑处理的代码，因此可以为它配置一个delegate为它处理业务逻辑代码
<bean id="courseDelegate" class="com.tifa.delegate.CourseDelegate">
<property name="viewPage" value="result"/>
</bean>
-->
<!-- Controller -->
<!--
<bean id="courseController" class="com.tifa.controller.CourseController">
<property name="methodNameResolver" ref="paraMethodResolver"/>
<property name="delegate" ref="courseDelegate"/>
</bean> -->
<bean id="register" class="com.tifa.bookmark.controller."
</beans>
|
| Spring配置---web.xml |
web.xml, spring |
|
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
<display-name></display-name>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<!-- 解决乱码问题的过滤器 -->
<filter>
<filter-name>encodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!--
一下的配置是告诉WebApplicationContext，Spring的配置文件在哪里，若不指定名称，则默认为applicationContext.xml
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/beans-config.xml</param-value>
</context-param>
-->
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
<!-- 前端控制器 -->
<servlet>
<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 指定Controller的配置文件 -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/mvc-config.xml</param-value>
</init-param>
<!-- 配置优先权为最大 -->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<url-pattern>*.action</url-pattern>
</servlet-mapping>
</web-app>
|
| 两个数互换 |
java |
http://softbeta.iteye.com/blog/1185766 |
int x = 2010;
int y = 2012;
y=(x^= (y^= x))^ y;
System.out.println("x= " + x + "; y= " + y);
|
