如何在春季單控制器注入原型豆

Question

我有這樣的原型豆類一個FactoryBean：

@Component 
public class ApplicationConfigurationMergedPropertiesFactoryBean implements SmartFactoryBean<Properties>{ 

    @Autowired 
    protected ApplicationConfigurationInitializer initializer; 

    @Override 
    public Properties getObject() throws Exception { 
     return XXXXXXXXXX; 
    } 

    @Override 
    public Class<?> getObjectType() { 
     return Properties.class; 
    } 

    @Override 
    public boolean isSingleton() { 
     return false; 
    } 

    @Override 
    public boolean isPrototype() { 
     return true; 
    } 

我想自動裝配它的控制器和，每當我試圖訪問屬性（通過p.get()，具有ApplicationConfigurationMergedPropertiesFactoryBean.getObject()一個新的原型實例：）

@Controller 
@RequestMapping("/home") 
public class HomeController { 

    @Autowired 
    @Qualifier("applicationConfig") 
    private Properties p; 

    @RequestMapping(method = { RequestMethod.GET, RequestMethod.POST }) 
    public String home() { 
     System.out.println(p.get("something")); 
    } 

但是這永遠不會調用getObject（如果我的豆直接注入的ApplicationContext的訪問，它的工作原理，提供了一個全新的屬性豆：

@Controller 
@RequestMapping("/home") 
public class HomeController { 

    @Autowired 
    @Qualifier("applicationConfig") 
    private Properties p; 

    @Autowired 
    private ApplicationContext ac; 

    @RequestMapping(method = { RequestMethod.GET, RequestMethod.POST }) 
    public String home() { 
     System.out.println(p.get("something")); //WRONG!!!! 
     System.out.println(ac.getBean("applicationConfig", Properties.class).getProperty("something")); //OK!!!! 

如何直接使用@Autowired注入來實現？

Answer 1

你有沒有考慮過讓你的控制器類原型作用域呢？

@Controller 
@Scope("prototype") 
@RequestMapping("/home") 
public class HomeController { 

Answer 2

注入廠家直接：

@Controller 
@RequestMapping("/home") 
public class HomeController { 

    @Autowired 
    @Qualifier("applicationConfig") 
    private SmartFactoryBean p; 

    @Autowired 
    private ApplicationContext ac; 

    @RequestMapping(method = { RequestMethod.GET, RequestMethod.POST }) 
    public String home() { 
     System.out.println(p.getObject()); 
    .... 
    }