Night-Fragrance/nightFragrance-massage/src/main/java/com/ylx/massage/utils/WeChatUtil.java

package com.ylx.massage.utils;

/**
 * @author jianlong
 * @date 2024-06-04 10:13
 */

import cn.hutool.http.HttpUtil;
import com.alibaba.fastjson2.JSONObject;
import com.ylx.common.config.WechatAccountConfig;
import com.ylx.common.exception.ServiceException;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

import javax.annotation.Resource;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.io.StringWriter;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Map;


/**
 * 微信登录工具类
 */
@Component
@Slf4j
public class WeChatUtil {

    private final static String ERROR_CODE = "errcode";

    @Resource
    private WechatAccountConfig wxPayProperties;


    /**
     * 获取微信授权code
     *
     * @param state state信息
     * @return 返回微信授权code的URL
     */
    public String getCode(String state) {
        try {
            StringBuffer url = new StringBuffer();
            url.append(wxPayProperties.getGetCodeUrl())
                    .append("?appid=")
                    .append(wxPayProperties.getMpAppId())
                    .append("&redirect_uri=")
                    .append(URLEncoder.encode(wxPayProperties.getRedirectUrl(), "UTF-8"))
                    .append("&response_type=code&scope=snsapi_userinfo&state=")
                    .append("STATE")
                    .append("#wechat_redirect");
            return url.toString();
        } catch (UnsupportedEncodingException e) {
            throw new ServiceException("URL格式化异常");
        }

    }

    /**
     * 获取微信AccessToken
     *
     * @param code 用户code
     * @return 返回包含微信AccessToken的Map
     */
    public Map<?, ?> getAccessToken(String code) {
        StringBuffer url = new StringBuffer();
        url.append(wxPayProperties.getAccessTokenUrl())
                .append("?appid=").append(wxPayProperties.getMpAppId())
                .append("&secret=").append(wxPayProperties.getMpAppSecret())
                .append("&code=").append(code)
                .append("&grant_type=authorization_code");
        String rs = HttpUtil.get(url.toString());
        Map<?, ?> map = JSONObject.parseObject(rs, Map.class);
        if (null == map.get(ERROR_CODE)) {
            return map;
        } else {
            throw new ServiceException("获取access_token出错");
        }
    }

    /**
     * 获取微信AccessToken
     *
     *
     * @return 返回包含微信AccessToken的Map
     */
    public String getToken() {
        StringBuffer url = new StringBuffer();
        url.append("https://api.weixin.qq.com/cgi-bin/token")
                .append("?grant_type=").append("client_credential")
                .append("&appid=").append(wxPayProperties.getMpAppId())
                .append("&secret=").append(wxPayProperties.getMpAppSecret());
        String rs = HttpUtil.get(url.toString());
        Map<?, ?> map = JSONObject.parseObject(rs, Map.class);
        if (null == map.get(ERROR_CODE)) {
            return map.get("access_token").toString();
        } else {
            log.error("getToken-获取access_token出错:{}", map);
            throw new ServiceException("getToken-获取access_token出错");
        }
    }

    /**
     * 刷新AccessToken
     *
     * @param refreshToken 用户刷新token
     * @return 返回包含刷新后的微信AccessToken的Map
     */
    public Map<?, ?> refreshToken(String refreshToken) {
        StringBuffer url = new StringBuffer();
        url.append("https://api.weixin.qq.com/sns/oauth2/refresh_token")
                .append("?appid=").append(wxPayProperties.getMpAppId())
                .append("&grant_type=refresh_token&refresh_token=").append(refreshToken);
        String rs = HttpUtil.get(url.toString());
        Map<?, ?> map = JSONObject.parseObject(rs, Map.class);
        if (null == map.get(ERROR_CODE)) {
            return map;
        } else {
            log.error("刷新access_token出错:{}", map);
            throw new ServiceException("刷新access_token出错");
        }
    }

    /**
     * 获取用户信息
     *
     * @param accessToken 微信AccessToken
     * @param openid      用户的openid
     * @return 返回包含用户信息的JSON字符串
     */
    public String getUserInfo(String accessToken, String openid) {
        StringBuffer url = new StringBuffer();
        url.append("https://api.weixin.qq.com/sns/userinfo")
                .append("?access_token=").append(accessToken)
                .append("&openid=").append(openid)
                .append("&lang=zh_CN");
        return HttpUtil.get(url.toString());
    }


    /**
     * 生成公众号码ticket
     *
     * @param token access_token
     * @return 返回包含微信公众号码ticket的Map
     */
    public Map<?, ?> getTicket(String token, String openId){

        String url = "https://api.weixin.qq.com/cgi-bin/qrcode/create?access_token=" + token;

        String param = "{\"action_name\": \"QR_LIMIT_STR_SCENE\",\"action_info\": {\"scene\": {\"scene_str\": \"" + openId + "\"}}}";

        String rs = HttpUtil.post(url, param);
        Map<?, ?> map = JSONObject.parseObject(rs, Map.class);

//        String ticket = map.get("ticket").toString();
//
//        String encode = null;
//        try {
//            encode = URLEncoder.encode(ticket, "UTF-8");
//        } catch (UnsupportedEncodingException e) {
//            throw new RuntimeException(e);
//        }
//
//        String url1 = "https://mp.weixin.qq.com/cgi-bin/showqrcode?ticket="+ encode;
//
//        String s = HttpUtil.get(url1);
//
//
//
//
//        Map<?, ?> rsmap = JSONObject.parseObject(s, Map.class);
//        return rsmap;
        return map;

    }

    /**
     * 生成公众号码ticket
     *
     * @param token access_token
     * @return 返回包含微信公众号码ticket的Map
     */
    public Map<?, ?> menuUtil(String token) {

        String url = " https://api.weixin.qq.com/cgi-bin/menu/create?access_token=" + token;

        String param = "{\"button\":[{\"type\":\"view\",\"name\":\"立即下单\",\"url\":\"https://test.baoxianzhanggui.com/fragrance/\"},{\"name\":\"更多\",\"sub_button\":[{\"type\":\"view\",\"name\":\"搜索\",\"url\":\"https://test.baoxianzhanggui.com/fragrance/\"},{\"type\":\"click\",\"name\":\"赞一下我们\",\"key\":\"V1001_GOOD\"}]}]}";
        String rs = HttpUtil.post(url, param);
        Map<?, ?> map = JSONObject.parseObject(rs, Map.class);

        return map;

    }


    /**
     * XML格式字符串转换为Map
     *
     * @param strXML XML字符串
     * @return XML数据转换后的Map
     * @throws Exception
     */
    public static Map<String, String> xmlToMap(String strXML) throws Exception {
        try {
            Map<String, String> data = new HashMap<>();
            DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
            DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder();
            InputStream stream = new ByteArrayInputStream(strXML.getBytes("UTF-8"));
            org.w3c.dom.Document doc = documentBuilder.parse(stream);
            doc.getDocumentElement().normalize();
            NodeList nodeList = doc.getDocumentElement().getChildNodes();
            for (int idx = 0; idx < nodeList.getLength(); ++idx) {
                Node node = nodeList.item(idx);
                if (node.getNodeType() == Node.ELEMENT_NODE) {
                    org.w3c.dom.Element element = (org.w3c.dom.Element) node;
                    data.put(element.getNodeName(), element.getTextContent());
                }
            }
            try {
                stream.close();
            } catch (Exception ex) {
                // do nothing
            }
            return data;
        } catch (Exception ex) {
            log.error("Invalid XML, can not convert to map. Error message: {}. XML content: {}", ex.getMessage(), strXML);
            throw ex;
        }
    }

    /**
     * 将Map转换为XML格式的字符串
     *
     * @param data Map类型数据
     * @return XML格式的字符串
     * @throws Exception
     */
    public static String mapToXml(Map<String, String> data) throws Exception {
        DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
        DocumentBuilder documentBuilder= documentBuilderFactory.newDocumentBuilder();
        org.w3c.dom.Document document = documentBuilder.newDocument();
        org.w3c.dom.Element root = document.createElement("xml");
        document.appendChild(root);
        for (String key: data.keySet()) {
            String value = data.get(key);
            if (value == null) {
                value = "";
            }
            value = value.trim();
            org.w3c.dom.Element filed = document.createElement(key);
            filed.appendChild(document.createTextNode(value));
            root.appendChild(filed);
        }
        TransformerFactory tf = TransformerFactory.newInstance();
        Transformer transformer = tf.newTransformer();
        DOMSource source = new DOMSource(document);
        transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
        transformer.setOutputProperty(OutputKeys.INDENT, "yes");
        StringWriter writer = new StringWriter();
        StreamResult result = new StreamResult(writer);
        transformer.transform(source, result);
        String output = writer.getBuffer().toString(); //.replaceAll("\n|\r", "");
        try {
            writer.close();
        } catch (Exception ex) {

        }
        return output;
    }


}