手動擷取spring的ApplicationContext和bean對象

來源:互聯網
上載者:User

標籤:row   set   syntax   介面   類繼承   ring   lsp   public   and   

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:

?
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354 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:

?
1234567891011 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

 

手動擷取spring的ApplicationContext和bean對象

相關文章

聯繫我們

該頁面正文內容均來源於網絡整理,並不代表阿里雲官方的觀點,該頁面所提到的產品和服務也與阿里云無關,如果該頁面內容對您造成了困擾,歡迎寫郵件給我們,收到郵件我們將在5個工作日內處理。

如果您發現本社區中有涉嫌抄襲的內容,歡迎發送郵件至: info-contact@alibabacloud.com 進行舉報並提供相關證據,工作人員會在 5 個工作天內聯絡您,一經查實,本站將立刻刪除涉嫌侵權內容。

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.