appcontext.java

来自「基于Ajax+Spring+Hibernate开发的个性化定制系统源代码」· Java 代码 · 共 42 行

package com.individaution.resource;

import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class AppContext {
	 private static AppContext instance; 		
	 private static  AbstractApplicationContext appContext;
    public synchronized static AppContext getInstance() {
          if(instance == null) {
                instance = new AppContext();
                System.out.println("加载applicationContext.xml完成!");
          }
         if(instance==null){
        	 System.out.println("未连接数据库!");
         }else{
        	 //System.out.println("连接数据库好!");
         }
          return instance;
    }
    
    private AppContext() {
    	
   	   if( appContext==null){
		    appContext = new ClassPathXmlApplicationContext( "/applicationContext.xml");
	   }
      
    }
    
    public AbstractApplicationContext getAppContext() {
    	   if(this.appContext==null){
    		   this.appContext = new ClassPathXmlApplicationContext( "/applicationContext.xml");
    	   }
          return appContext;
    }
    static {
    	  System.out.println("开始加载applicationContext.xml");
    	  appContext = new ClassPathXmlApplicationContext( "/applicationContext.xml");
    }

}