servletcontextlistener - How to create servlet-context.xml & servlet-context-dispatcher.xml files for spring -
in spring spring controller have written @postconstruct configured function, problem is involked 2 times when run project.below web.xml , servlet-context.xml files.
web.xml :
<?xml version="1.0" encoding="utf-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/xmlschema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemalocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="webapp_id" version="3.1"> <display-name>savemoneyoauth</display-name> <servlet> <servlet-name>myproject</servlet-name> <servlet-class>org.springframework.web.servlet.dispatcherservlet</servlet-class> <init-param> <param-name>contextconfiglocation</param-name> <param-value>/web-inf/servlet-context.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>myproject</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <listener> <listener-class>org.springframework.web.context.contextloaderlistener</listener-class> </listener> <context-param> <param-name>contextconfiglocation</param-name> <param-value> /web-inf/servlet-context.xml, /web-inf/spring-security.xml </param-value> </context-param> <!-- spring security --> <filter> <filter-name>springsecurityfilterchain</filter-name> <filter-class>org.springframework.web.filter.delegatingfilterproxy</filter-class> </filter> <filter-mapping> <filter-name>springsecurityfilterchain</filter-name> <url-pattern>/*</url-pattern> <dispatcher>request</dispatcher> <dispatcher>error</dispatcher> </filter-mapping> </web-app> servlet-context.xml :
<?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:context="http://www.springframework.org/schema/context" xmlns:util="http://www.springframework.org/schema/util" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemalocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.1.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsd"> <context:annotation-config /> <context:component-scan base-package="com.example.myproject" /> <mvc:annotation-driven> <mvc:message-converters register-defaults="false"> <bean class="org.springframework.http.converter.stringhttpmessageconverter" /> <bean class="org.springframework.http.converter.json.mappingjackson2httpmessageconverter" /> </mvc:message-converters> </mvc:annotation-driven> <bean id="multipartresolver" class="org.springframework.web.multipart.commons.commonsmultipartresolver"> <!-- 1 of properties available; maximum file size in bytes --> <property name="maxuploadsize" value="1000000000" /> </bean> <bean id="mydatasource" class="org.apache.commons.dbcp.basicdatasource" destroy-method="close"> <property name="driverclassname" value="com.mysql.jdbc.driver"/> <property name="url" value="jdbc:mysql://localhost:3306/saveit"/> <property name="username" value="root"/> <property name="password" value="password"/> <property name="validationquery" value="select 1"/> </bean> <!-- hibernate session factory --> <bean id="mysessionfactory" class="org.springframework.orm.hibernate4.localsessionfactorybean"> <property name="datasource" ref="mydatasource"/> <property name="packagestoscan"> <array> <value>com.example.myproject</value> </array> </property> <property name="hibernateproperties"> <value> hibernate.dialect=org.hibernate.dialect.mysqldialect </value> </property> </bean> <!-- hibernate transaction manager --> <bean id="transactionmanager" class="org.springframework.orm.hibernate4.hibernatetransactionmanager"> <property name="sessionfactory" ref="mysessionfactory"/> </bean> <!-- activates annotation based transaction management --> <tx:annotation-driven transaction-manager="transactionmanager"/> </beans> i found problem because have configured servlet-context.xml both contextloaderlistener , dispatcherservlet. avoid problem have split xml file sperate these two.so changed dispatcherservlet below in web.xml
<servlet> <servlet-name>savemoneyoauth</servlet-name> <servlet-class>org.springframework.web.servlet.dispatcherservlet</servlet-class> <init-param> <param-name>contextconfiglocation</param-name> <param-value>/web-inf/servlet-context-dispatcher.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> but how can split file codes servlet-context.xml , servlet-context-dispatcher.xml? should write in both file?please me.
what load in via contextloaderlistener, should root webapplicationcontext
the root webapplicationcontext should contain infrastructure beans should shared between other contexts , servlet instances. these inherited beans can overridden in servlet-specific scope, , can define new scope-specific beans local given servlet instance.
beans load via dispatcherservlet application specific servlet context , inherit beans defined in root webapplication context.
so ideally application specific beans such session factory, transaction manager , other relevant infrastructure beans should go in root webapplication context. beans such controllers , view resolvers should go in servlet context
http://docs.spring.io/spring/docs/current/spring-framework-reference/html/mvc.html#mvc-servlet
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