<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/config/application-context.xml
/WEB-INF/config/cache-context.xml
/WEB-INF/config/captcha-context.xml
/WEB-INF/config/jeecms/jeecore-context.xml
/WEB-INF/config/jeecms/jeecms-context.xml
/WEB-INF/config/shiro-context.xml
/WEB-INF/config/plug/**/*-context.xml
/WEB-INF/config/quartz-task.xml
</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
spring项目中web.xml都会有这么写配置。
ContextLoaderListener 初始化通过ContextLoaderListener.
那么contextConfigLocation这个属性在哪呢。
public class ContextLoaderListener extends ContextLoader implements ServletContextListener {
public WebApplicationContext initWebApplicationContext(ServletContext servletContext) {
if (servletContext.getAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE) != null) {
throw new IllegalStateException(
"Cannot initialize context because there is already a root application context present - " +
"check whether you have multiple ContextLoader* definitions in your web.xml!");
}
Log logger = LogFactory.getLog(ContextLoader.class);
servletContext.log("Initializing Spring root WebApplicationContext");
if (logger.isInfoEnabled()) {
logger.info("Root WebApplicationContext: initialization started");
}
long startTime = System.currentTimeMillis();
try {
// Store context in local instance variable, to guarantee that
// it is available on ServletContext shutdown.
if (this.context == null) {
this.context = createWebApplicationContext(servletContext);
protected WebApplicationContext createWebApplicationContext(ServletContext sc) {
Class<?> contextClass = determineContextClass(sc);
protected Class<?> determineContextClass(ServletContext servletContext) {
String contextClassName = servletContext.getInitParameter(CONTEXT_CLASS_PARAM);
if (contextClassName != null) {
try {
return ClassUtils.forName(contextClassName, ClassUtils.getDefaultClassLoader());
}
catch (ClassNotFoundException ex) {
throw new ApplicationContextException(
"Failed to load custom context class [" + contextClassName + "]", ex);
}
}
else {
contextClassName = defaultStrategies.getProperty(WebApplicationContext.class.getName());
public abstract class AbstractRefreshableWebApplicationContext extends AbstractRefreshableConfigApplicationContext
implements ConfigurableWebApplicationContext, ThemeSource {
public abstract class AbstractRefreshableConfigApplicationContext extends AbstractRefreshableApplicationContext
implements BeanNameAware, InitializingBean {
private String[] configLocations;
ok,
AbstractRefreshableConfigApplicationContext 。。。