NettyHttpSession.java 文件源码

@Override
public void removeAttribute(String name) {
    assertIsValid();
    Assert.notNull(name, "Attribute name must not be null");
    Object value = this.attributes.remove(name);
    if (value instanceof HttpSessionBindingListener) {
        ((HttpSessionBindingListener) value).valueUnbound(new HttpSessionBindingEvent(this, name, value));
    }
}