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Spring配置文件是用于指导Spring工厂进行Bean生产、依赖关系注入（装配）及Bean实例分发的"图纸"。Java EE程序员必须学会并灵活应用这份"图纸"准确地表达自己的"生产意图"。Spring配置文件是一个或多个标准的XML文档，applicationContext.xml是Spring的默认配置文件，当容器启动时找不到指定的配置文档时，将会尝试加载这个默认的配置文件。

             下面列举的是一份比较完整的配置文件模板，文档中各XML标签节点的基本用途也给出了详细的解释，这些XML标签节点在后续的知识点中均会用到，熟练掌握了这些XML节点及属性的用途后，为我们动手编写配置文件打下坚实的基础。

下面，就上面的配置列举一个示例：

     
   
          
          
    
               
               
     
                    
      
       com.mysql.jdbc.Driver
                          
                
      
                     
       
        jdbc:mysql://localhost:3306/eportal?useUnicode=                  true&characterEncoding=gbk
                           
                 
       
                      
        
         root
                            
                  
        
                       
         
          root
                             
                   
         
                        
          
           20
                              
                    
          
                         
           
            2
                               
                     
           
                          
            
             2
                                
                      
            
                           
             
              20
                                   
                   
             
                        
                        
                        
                        
              
                             
               
                                  
                
                 com/eportal/ORM/News.hbm.xml
                                  
                
                 com/eportal/ORM/Category.hbm.xml
                                  
                
                 com/eportal/ORM/Memberlevel.hbm.xml
                                  
                
                 com/eportal/ORM/Cart.hbm.xml
                                  
                
                 com/eportal/ORM/Traffic.hbm.xml
                                  
                
                 com/eportal/ORM/Newsrule.hbm.xml
                                  
                
                 com/eportal/ORM/Merchandise.hbm.xml
                                  
                
                 com/eportal/ORM/Admin.hbm.xml
                                  
                
                 com/eportal/ORM/Orders.hbm.xml
                                  
                
                 com/eportal/ORM/Cartselectedmer.hbm.xml
                                  
                
                 com/eportal/ORM/Newscolumns.hbm.xml
                                  
                
                 com/eportal/ORM/Member.hbm.xml
                              
                                   
                         
               
                              
                
                                   
                                   
                 
                  org.hibernate.dialect.MySQLDialect                  
                                    
                  
                   true                  
                                     
                   
                    50                  
                    
                     50              
                    
                   
                  
                 
                                      
                      
                
                           
                           
                             
                       
                 
                            
                            
                            
                            
                  
                                 
                   
                                      
                                      
                    
                     PROPAGATION_REQUIRED,readOnly                  
                     
                      PROPAGATION_REQUIRED,readOnly                  
                      
                       PROPAGATION_REQUIRED,readOnly                  
                       
                        PROPAGATION_REQUIRED,readOnly                  
                        
                         PROPAGATION_REQUIRED,readOnly                  
                                           
                         
                          PROPAGATION_REQUIRED              
                         
                        
                       
                      
                     
                    
                                         
                         
                   
                              
                              
                    
                                   
                     
                                        
                      
                       adminService
                                        
                      
                       columnsService
                                        
                      
                       newsService
                                        
                      
                       crawlService
                                        
                      
                       memberLevelService
                                        
                      
                       memberService
                                        
                      
                       categoryService
                                        
                      
                       merService
                                        
                      
                       cartService
                                        
                      
                       ordersService
                                        
                      
                       trafficService
                                    
                                         
                               
                     
                                    
                      
                       true
                                          
                                
                      
                                     
                       
                                          
                        
                         transactionInterceptor