Error errcode 40054 occurs when creating a new button in WeChat development

When developing a button to create a new official account on WeChat, the following error was reported:

{errcode:40054,errmsg:"invalid sub button url domain"}

After careful investigation, it was found that it was url Wrong address format:

		WXButton button = new WXButton();
		button.setName("baidu");
		button.setType("view");
		button.setUrl("www.baidu.com");
		
		WXButton button2 = new WXButton();
		button2.setName("客服MM");
		button2.setType("view");
		button2.setUrl("www.baidu.com");
		
		WXButton button3 = new WXButton();
		button3.setName("帮助");
		button3.setType("view");
		button3.setUrl("www.baidu.com");

Here button.setUrl("www.baidu.com"); should be changed to: button.setUrl("http:// www.baidu.com");

Be sure to bring the http prefix, otherwise an error will be reported {errcode:40054,errmsg:"invalid sub button url domain"}

Related WXButton.java code As follows:

public class WXButton 
{
	private String type;	// 按钮菜单的响应动作类型，该字段始终不能为空
	private String name;	// 按钮菜单标题，不超过16个字节，子菜单不超过40个字节,该字段始终不能为空
	
	private String key;	// 点击按钮时事件的key,该字段在 click等点击类型不能为空
	private String url;	// 网页链接，用户点击菜单可打开链接，不超过256字节，该字段在  view类型不能为空
	
	private WXButton[] sub_button;	// 子按钮（按钮最多有二级，第一级按钮最多三个，每一个一级按钮下面的二级按钮最多五个）
	
	public String getType() {
		return type;
	}
	public void setType(String type) {
		this.type = type;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getKey() {
		return key;
	}
	public void setKey(String key) {
		this.key = key;
	}
	public WXButton[] getSub_button() {
		return sub_button;
	}
	public void setSub_button(WXButton[] sub_button) {
		this.sub_button = sub_button;
	}
	public String getUrl() {
		return url;
	}
	public void setUrl(String url) {
		this.url = url;
	}
}

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