【Spring源碼這樣讀】-細扒ApplicationContext之setConfigLocations(configLocations)

細扒之繼續講容器初始化流程，上篇講了super(parent)，本章初始化的下一步setConfigLocations(configLocations);大佬請略過

setConfigLocations(configLocations)對應源碼

public void setConfigLocations(@Nullable String... locations) {
	if (locations != null) {
		Assert.noNullElements(locations, "Config locations must not be null");
		this.configLocations = new String[locations.length];
		for (int i = 0; i < locations.length; i++) {
			this.configLocations[i] = resolvePath(locations[i]).trim();
		}
	}
	else {
		this.configLocations = null;
	}
}

protected String resolvePath(String path) {
	return getEnvironment().resolveRequiredPlaceholders(path);
}

源碼的註釋其實寫得比較明瞭，一句話概括了：設置此應用程序上下文的配置位置，如果未設置，則實現可酌情使用默認值。