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Spring框架学习--自定义Scope类型

2024-08-13 07:06:00   212人阅读

1.首先需要定义一个Scope借口的实现类，至少需要实现get和remove方法：

/** * Created by feiyu on 16/9/13. */public class ThreadScope implements Scope {    private final ThreadLocal<Map<String, Object>> threadScope = new ThreadLocal<Map<String, Object>>(){        @Override        protected Map<String, Object> initialValue() {            return new HashMap<String,Object>();        }    };    public Object get(String name, ObjectFactory<?> objectFactory) {        Map<String,Object> scope = threadScope.get();        Object obj = scope.get(name);        if(obj == null){            obj = objectFactory.getObject();            scope.put(name, obj);        }        return obj;    }    public Object remove(String name) {        Map<String,Object> scope = threadScope.get();        return scope.remove(name);    }    public void registerDestructionCallback(String name, Runnable callback) {    }    public Object resolveContextualObject(String key) {        return null;    }    public String getConversationId() {        return null;    }

2.注册Scope

Scope threadScope = new ThreadScope();beanFactory.registerScope("thread", threadScope);

　　

3.使用Scope

<bean id=".." class=".." scope="thread"/>

　　

 

Spring框架学习--自定义Scope类型


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