Spring Data Access and Web 笔记

Spring: Data access using JDBC

There are a number of options for selecting an approach to form the basis for your JDBC datababse. There are three flavors of the JdbcTemplate, a new "SimpleJdbc" approach taking
advantage of data metadata.

1.JdbcTemplate
2.NamedParameterJdbcTemplate
	wraps a JdbcTemplate to provide more convenient usage with named parameters instead of the traditional JDBC.
3.SimpleJdbcTemplate
	This class combines the most frequently used features of both JdbcTemplate and NamedParameterJdbcTemplate plus it adds additional convenience by taking advantage of some Java 5 features like varargs, autoboxing and generics to provide an easier to use API . Requires JDK 5 or higher.
4.SimpleJdbcInsert and SimpleJdbcCall
	This will simplify the coding to a point where you only need to provide the name of the table or procedure and provide a Map of parameters matching the column names.
Designed to work together with the SimpleJdbcTemplate.
5.RDBMS Object including MappingSqlQuery, SqlUpdate and StoredProcedure



常继承SimpleJdbcDaoSupport 这个类去操作数据库。
使用iBatis时继承SqlMapClientDaoSupport


Spring Web:
1.AbstractController
2.AbstractCommandController
3.SimpleFormController
Application controllers will typically be subclasses of those.
Note that you can choose an appropriate base class: if you don't have a 
form, you don't need a for controller. This is a major difference to Struts.

One of the overarching design principles in Spring Web MVC(and in Spring in 
general ) is the "Open for extension, closed for modification" princle.

Spring URL Mapping:
1.BeanNameUrlHandlerMapping
<beans>
	<bean id="handlerMapping" class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"/>
	<bean name="/editaccount.form" class="org.springframework.web.servlet.mvc.SimpleFormController">
		<property name="formView" value="account"/>
		<property name="successView" value="account-created"/>
		<property name="commandName" value="account"/>
		<property name="commandClass" value="samples.Account"/>
	</bean>
<beans>
2.SimpleUrlHandlerMapping
<beans>
	<!-- no 'id' required, HandlerMapping beans are automatically detected by the DispatcherServlet -->
	<bean class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
		<property name="mappings">
		<value>
			/*/account.form=editAccountFormController
			/*/editaccount.form=editAccountFormController
			/ex/view*.html=helpController
			/**/help.html=helpController
		</value>
		</property>
	</bean>
	<bean id="helpController"
		class="org.springframework.web.servlet.mvc.UrlFilenameViewController"/>
	<bean id="editAccountFormController"
		class="org.springframework.web.servlet.mvc.SimpleFormController">
		<property name="formView" value="account"/>
		<property name="successView" value="account-created"/>
		<property name="commandName" value="Account"/>
		<property name="commandClass" value="samples.Account"/>
	</bean>
<beans>

redirect: prefix
forward: prefix