jkldhtjk/src/main/java/com/wxxcx/index/wxSendMessage.java

package com.wxxcx.index;

import com.google.gson.Gson;
import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

public class wxSendMessage {
    private static final String APPID = "wx9b479fa3c2af4f21";
    private static final String SECRET = "426effb7b58f9ba7c5f6dd1062db0074";
    private static final Gson gson = new Gson();

    public static void queryAccessToken(String devName, String phoneNo, String fwhOpenId) {
        // 1. 获取 access_token
        String accessToken = getAccessToken();
        if (accessToken == null) {
            System.out.println("获取 access_token 失败");
            return;
        }
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        String currentTime = sdf.format(new Date());


        Map<String, Object> data = new HashMap<>();

// 1. 每个字段需要包装成包含 value 的 Map
        Map<String, String> characterString1 = new HashMap<>();
        characterString1.put("value", "123456");
        data.put("character_string1", characterString1);
        Map<String, String> thing8 = new HashMap<>();

        // 设备名称
//        thing8.put("value", "测试设备");
        thing8.put("value", devName);
        data.put("thing8", thing8);
        Map<String, String> thing10 = new HashMap<>();

        // 用户手机号
//        thing10.put("value", "17356519496");
        thing10.put("value", phoneNo);
        data.put("thing10", thing10);
        Map<String, String> time3 = new HashMap<>();
        time3.put("value", currentTime);  // 时间字段需符合格式要求
        data.put("time3", time3);
        Map<String, String> const2 = new HashMap<>();
        const2.put("value", "设备运行异常，给用户发送推送");
        data.put("const2", const2);
        System.out.println(data);
//        String openid = "oWlo-6iXL0pQeYWZxEpwB8knv6D8";
        boolean result = sendTemplateMessage(accessToken, fwhOpenId, data);
        System.out.println("发送结果: " + (result ? "成功" : "失败"));
    }

    private static String getAccessToken() {
        String url = "https://api.weixin.qq.com/cgi-bin/token" +
                "?grant_type=client_credential" +
                "&appid=" + APPID +
                "&secret=" + SECRET;

        try (CloseableHttpClient httpClient = HttpClients.createDefault()) {
            HttpGet httpGet = new HttpGet(url);
            try (CloseableHttpResponse response = httpClient.execute(httpGet)) {
                HttpEntity entity = response.getEntity();
                String result = EntityUtils.toString(entity);
                Map<String, Object> map = gson.fromJson(result, Map.class);
                System.out.println(map.get("access_token"));
                return (String) map.get("access_token");
            }
        } catch (IOException e) {
            e.printStackTrace();
            return null;
        }
    }

    private static boolean sendTemplateMessage(String accessToken, String openid,
                                               Map<String, Object> data) {
        String url = "https://api.weixin.qq.com/cgi-bin/message/template/send" +
                "?access_token=" + accessToken;

        // 构建请求体
        Map<String, Object> params = new HashMap<>();
        params.put("touser", openid);
        params.put("template_id", "-wNA7XW0_4hscmIUK-hmolNpccd-zMlyGnKUvpGdfZQ");
        params.put("data", data);

        try (CloseableHttpClient httpClient = HttpClients.createDefault()) {
            HttpPost httpPost = new HttpPost(url);
            httpPost.setHeader("Content-Type", "application/json");
            httpPost.setEntity(new StringEntity(gson.toJson(params), "UTF-8"));

            try (CloseableHttpResponse response = httpClient.execute(httpPost)) {
                String result = EntityUtils.toString(response.getEntity());
                Map<String, Object> resultMap = gson.fromJson(result, Map.class);
                System.out.println("打印结果: " + resultMap);
                return resultMap.get("errmsg").equals("ok");
            }
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }
    public static void main(String[] args) {
        // 你的程序逻辑
        System.out.println("Hello, world!");
        // 其他业务代码...
    }

}