需要导入的包
<dependency>
<groupId>com.squareup.okhttp3</groupId>
<artifactId>okhttp</artifactId>
<version>4.9.1</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.15</version>
</dependency>
下面是实现代码
import com.alibaba.fastjson.JSONObject;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.Response;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
public class SubscribeMessageDemo {
//修改为你的小程序对应的相关信息
private final static String APPID = "your_appid";
private final static String APP_SECRET = "your_appsecret";
//请求access_token的接口地址
private final static String ACCESS_TOKEN_API = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid="+APPID+"&secret="+APP_SECRET;
//发送订阅消息的接口地址
private final static String SEND_SUBSCRIBE_MESSAGE_API = "https://api.weixin.qq.com/cgi-bin/message/subscribe/send?access_token=";
public static void main(String[] args) {
OkHttpClient client = new OkHttpClient();
try {
//1.获取access_token
String accessToken = getAccessToken(client);
//2.发送订阅消息
String result = sendSubscribeMessage(client, accessToken);
System.out.println(result);
} catch (IOException e) {
e.printStackTrace();
}
}
//获取access_token
private static String getAccessToken(OkHttpClient client) throws IOException {
Request request = new Request.Builder()
.url(ACCESS_TOKEN_API)
.build();
Response response = client.newCall(request).execute();
if (response.isSuccessful()) {
JSONObject jsonObject = JSONObject.parseObject(response.body().string());
String accessToken = jsonObject.getString("access_token");
return accessToken;
}
return null;
}
//发送订阅消息
private static String sendSubscribeMessage(OkHttpClient client, String accessToken) throws IOException {
String url = SEND_SUBSCRIBE_MESSAGE_API + accessToken;
//构造发送给用户的订阅消息内容
Map<String, Object> messageContent = new HashMap<>();
messageContent.put("thing1", new HashMap<String, Object>(){
{put("value", "预定成功");}});
messageContent.put("thing2", new HashMap<String, Object>(){
{put("value", "2023-04-04 16:29:49");}});
JSONObject messageContentJson = new JSONObject(messageContent);
//构造订阅消息
Map<String, Object> subscribeMessage = new HashMap<>();
subscribeMessage.put("touser", "openid");//填写你的接收者openid
subscribeMessage.put("template_id", "your_template_id");//填写你的模板ID
subscribeMessage.put("data", messageContentJson);
JSONObject subscribeMessageJson = new JSONObject(subscribeMessage);
RequestBody requestBody = RequestBody.create(subscribeMessageJson.toJSONString(), okhttp3.MediaType.parse("application/json; charset=utf-8"));
Request request = new Request.Builder()
.url(url)
.post(requestBody)
.build();
Response response = client.newCall(request).execute();
if (response.isSuccessful()) {
return response.body().string();
}
return null;
}
}