標籤:
WEB項目:
方法1:
| 1 |
ApplicationContext ac1 = WebApplicationContextUtils.getRequiredWebApplicationContext(ServletContext sc) |
方法2:
| 1 |
ApplicationContext ac2 = WebApplicationContextUtils.getWebApplicationContext(ServletContext sc) |
方法3:
| 1 |
寫一個工具類類繼承ApplicationObjectSupport,並將這個加入到spring的容器 |
方法4:
| 1 |
寫一個工具類類繼承WebApplicationObjectSupport,並將這個加入到spring的容器 |
方法5:(推薦)
| 1 |
寫一個工具類實現ApplicationContextAware介面,並將這個加入到spring的容器 |
樣本:
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import java.util.Map;import org.springframework.beans.BeansException;import org.springframework.context.ApplicationContext;import org.springframework.context.ApplicationContextAware; /** * 擷取ApplicationContext和Object的工具類 * @author yzl * */@SuppressWarnings({ "rawtypes", "unchecked" })public class SpringContextUtils implements ApplicationContextAware { private static ApplicationContext applicationContext; public void setApplicationContext(ApplicationContext arg0) throws BeansException { applicationContext = arg0; } /** * 擷取applicationContext對象 * @return */ public static ApplicationContext getApplicationContext(){ return applicationContext; } /** * 根據bean的id來尋找對象 * @param id * @return */ public static Object getBeanById(String id){ return applicationContext.getBean(id); } /** * 根據bean的class來尋找對象 * @param c * @return */ public static Object getBeanByClass(Class c){ return applicationContext.getBean(c); } /** * 根據bean的class來尋找所有的對象(包括子類) * @param c * @return */ public static Map getBeansByClass(Class c){ return applicationContext.getBeansOfType(c); }} |
非WEB項目
| 1 |
ApplicationContext ac = new FileSystemXmlApplicationContext("applicationContext.xml") |
可選的操作方法有:
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一:String[] path={"WebRoot/WEB-INF/applicationContext.xml","WebRoot/WEB-INF/applicationContext_task.xml"};ApplicationContext context = new FileSystemXmlApplicationContext(path); 二:String path="WebRoot/WEB-INF/applicationContext*.xml";ApplicationContext context = new FileSystemXmlApplicationContext(path); 三:ApplicationContext ctx = new FileSystemXmlApplicationContext("classpath:地址");沒有classpath的話就是從當前的工作目錄 |
轉自:http://www.cnblogs.com/yangzhilong/p/3949332.html
手動擷取spring的ApplicationContext和bean對象