使ç¨@Controllerå®ä¹ä¸ä¸ªæ§å¶å¨
使ç¨@RequestMappingæ å°è¯·æ±
使ç¨@RequestParamç»å®è¯·æ±åæ°å°æ¹æ³åæ°
使ç¨@ModelAttributeæä¾ä¸ä¸ªä»æ¨¡åå°æ°æ®çé¾æ¥
使ç¨@SessionAttributesæå®åå¨å¨ä¼è¯ä¸çå±æ§
<context:annotation-config/>
ä»çä½ç¨æ¯éå¼å°å Spring 容å¨æ³¨å
AutowiredAnnotationBeanPostProcessorã
CommonAnnotationBeanPostProcessorã
PersistenceAnnotationBeanPostProcessorã
RequiredAnnotationBeanPostProcessor
è¿ 4 个BeanPostProcessorã
ä¾å¦ï¼
å¦ææ³ä½¿ç¨@ Resource ã@ PostConstructã@ PreDestroyç注解就å¿
须声æCommonAnnotationBeanPostProcessorã
å¦ææ³ä½¿ç¨@PersistenceContext注解ï¼å°±å¿
须声æPersistenceAnnotationBeanPostProcessorçBeanã
å¦æä½ æ³ä½¿ç¨@Autowired注解ï¼é£ä¹å°±å¿
é¡»äºå
å¨ Spring 容å¨ä¸å£°æ AutowiredAnnotationBeanPostProcessor Beanãä¼ ç»å£°ææ¹å¼å¦ä¸ï¼
<bean class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor "/>
å¦ææ³ä½¿ç¨ @Requiredç注解ï¼å°±å¿
须声æRequiredAnnotationBeanPostProcessorçBeanãåæ ·ï¼ä¼ ç»ç声ææ¹å¼å¦ä¸ï¼
<bean class="org.springframework.beans.factory.annotation.RequiredAnnotationBeanPostProcessor"/>
è®°å¾ï¼ä½¿ç¨æ³¨è§£ä¸è¬é½ä¼é
ç½®æ«æå
è·¯å¾é项
<context:component-scan base-package=âXX.XXâ/>
<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/dispatcherServlet-servlet.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>
è¿ä¸ªé
置常常è§äºweb.xmlæ件ä¸
<load-on-startup>1</load-on-startup>æ¯å¯å¨é¡ºåºï¼è®©è¿ä¸ªServletéServletp容å¨ä¸èµ·å¯å¨ã
<url-pattern>*.do</url-pattern> ä¼æ¦æª*.doç»å°¾ç请æ±ã
<servlet-name>dispatcherServlet</servlet-name>è¿ä¸ªServletçååæ¯dispatcherServletï¼å¯ä»¥æå¤ä¸ªDispatcherServletï¼æ¯éè¿ååæ¥åºåçãæ¯ä¸ä¸ªDispatcherServletæèªå·±çWebApplicationContextä¸ä¸æ对象ãåæ¶ä¿åçServletContextä¸åRequest对象ä¸ï¼å
³äºkeyï¼ä»¥å说æã
å¨DispatcherServletçåå§åè¿ç¨ä¸ï¼æ¡æ¶ä¼å¨webåºç¨ç WEB-INFæ件夹ä¸å¯»æ¾å为[dispatcherServlet]-servlet.xml çé
ç½®æ件ï¼çææ件ä¸å®ä¹çbeanã
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/dispatcherServlet-servlet.xml</param-value>
</init-param>
ææäºé
ç½®æ件çæ件åï¼ä¸ä½¿ç¨é»è®¤é
ç½®æ件åï¼è使ç¨springMVC.xmlé
ç½®æ件ã
å
¶ä¸<param-value>**.xml</param-value> è¿éå¯ä»¥ä½¿ç¨å¤ç§åæ³
1ãä¸å,使ç¨é»è®¤å¼:/WEB-INF/<servlet-name>-servlet.xml
2ã<param-value>/WEB-INF/classes/springMVC.xml</param-value>
3ã<param-value>classpath*:springMVC-mvc.xml</param-value>
4ãå¤ä¸ªå¼ç¨éå·åé
springMVC-mvc.xml é
ç½®æ件ç段讲解
<context:annotation-config/>
<!-- èªå¨æ«æçå
å -->
<context:component-scan base-package="com.iflysse"/>
<!-- é»è®¤ç注解æ å°çæ¯æ -->
<mvc:annotation-driven/>
<!-- è§å¾è§£éç±» -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/"/>
<property name="suffix" value=".jsp"/><!--å¯ä¸ºç©º,æ¹ä¾¿å®ç°èªå·²çä¾æ®æ©å±åæ¥éæ©è§å¾è§£éç±»çé»è¾ -->
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
</bean>
<mvc:annotation-driven /> æ¯ä¸ç§ç®åå½¢å¼ï¼å®å
¨å¯ä»¥æå¨é
ç½®æ¿ä»£è¿ç§ç®åå½¢å¼ï¼ç®åå½¢å¼å¯ä»¥è®©åå¦é½å¿«éåºç¨é»è®¤é
ç½®æ¹æ¡ã<mvc:annotation-driven /> ä¼èªå¨æ³¨åDefaultAnnotationHandlerMappingä¸AnnotationMethodHandlerAdapter 两个bean,æ¯spring MVC为@Controllersåå请æ±æå¿
é¡»çã
并æä¾äºï¼æ°æ®ç»å®æ¯æï¼@NumberFormatannotationæ¯æï¼@DateTimeFormatæ¯æï¼@Validæ¯æï¼è¯»åXMLçæ¯æï¼JAXBï¼ï¼è¯»åJSONçæ¯æï¼Jacksonï¼ã
åé¢ï¼æ们å¤çååºajax请æ±æ¶ï¼å°±ä½¿ç¨å°äºå¯¹jsonçæ¯æã
åé¢ï¼å¯¹actionåJUnitåå
æµè¯æ¶ï¼è¦ä»spring IOC容å¨ä¸åDefaultAnnotationHandlerMappingä¸AnnotationMethodHandlerAdapter 两个beanï¼æ¥å®ææµè¯ï¼åçæ¶åè¦ç¥éæ¯<mvc:annotation-driven />è¿ä¸å¥æ³¨åçè¿ä¸¤ä¸ªbeanã
<!-- json æ¯æ -->
<bean id="mappingJacksonHttpMessageConverter"
class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">
<property name="objectMapper" ref="commonObjectMapper"/>
<property name="supportedMediaTypes">
<list>
<value>text/html;charset=UTF-8</value>
</list>
</property>
</bean>
<!-- ObjectMapper jsonè½¬æ¢ -->
<bean id="commonObjectMapper" class="cn.com.starit.util.CommonObjectMapper"/>
温馨提示:答案为网友推荐,仅供参考