![image](https://user-images.githubusercontent.com/54169514/199922630-ba1b1417-e124-40b1-bac7-49158e2adbca.png)

文档上ApplicationConfig的enableFileCache属性默认true，但是在Dubbo3.1版本中，该属性似乎默认为null，导致mapping和元数据无法在本地缓存。

![image](https://user-images.githubusercontent.com/54169514/199923129-c99ea29b-45c5-40d1-bc21-1fbb44830fc7.png)

public void setQosAcceptForeignIp(Boolean qosAcceptForeignIp) {
        this.qosAcceptForeignIp = qosAcceptForeignIp;
    }
    /**
     * The format is the same as the springboot, including: getQosEnableCompatible(), getQosPortCompatible(), getQosAcceptForeignIpCompatible().
     *
     * @return
     */
    @Parameter(key = QOS_ENABLE_COMPATIBLE, excluded = true, attribute = false)
    public Boolean getQosEnableCompatible() {
        return getQosEnable();
    }
    public void setQosEnableCompatible(Boolean qosEnable) {
        setQosEnable(qosEnable);
    }
    @Parameter(key = QOS_HOST_COMPATIBLE, excluded = true, attribute = false)
    public String getQosHostCompatible() {
        return getQosHost();
    }
    public void setQosHostCompatible(String qosHost) {
        this.setQosHost(qosHost);
    }
    @Parameter(key = QOS_PORT_COMPATIBLE, excluded = true, attribute = false)
    public Integer getQosPortCompatible() {
        return getQosPort();
    }
    public void setQosPortCompatible(Integer qosPort) {
        this.setQosPort(qosPort);
    }
    @Parameter(key = ACCEPT_FOREIGN_IP_COMPATIBLE, excluded = true, attribute = false)