yinyitong-zhongyuyuan-dll-stand/src/main/java/com/dpkj/common/utils/ThirdService.java

package com.dpkj.common.utils;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.dpkj.common.dto.LexMarkDTO;
import com.dpkj.common.dto.LexMarkResultDTO;
import com.dpkj.common.exception.RRException;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import org.thymeleaf.util.StringUtils;

import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.nio.charset.StandardCharsets;


/**
 * 第三方服务，主要是调用打印机等
 *
 * @author <a href="https://gitee.com/shi-chongli">石头人</a>
 * @version 1.0
 * @since 2025-02-08 10:45:01
 */
@Slf4j
@Component
public class ThirdService {

    @Value("${app.custom.lexMarkServiceIp}")
    private String lexMarkServiceIp;
    @Value("${app.custom.lexMarkServicePort}")
    private String lexMarkServicePort;

    /**
     * 利盟台式机-立体机 接口请求
     *
     * @param lexMarkDTO 请求DTO
     * @return result
     */
    public <T> LexMarkResultDTO<T> callDevice(LexMarkDTO lexMarkDTO, Class<T> clazz) {
        try {
            URL url = new URL(lexMarkServiceIp + ":" + lexMarkServicePort + "/CallDevice");
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            connection.setRequestMethod("POST");
            connection.setDoOutput(true);
            connection.setRequestProperty("Content-Type", "application/json");

            // 将LexMarkDTO对象转换为JSON字符串
            String jsonInputString = JSON.toJSONString(lexMarkDTO);
            try (DataOutputStream wr = new DataOutputStream(connection.getOutputStream())) {
                byte[] input = jsonInputString.getBytes(StandardCharsets.UTF_8);
                wr.write(input, 0, input.length);
                log.info(jsonInputString);
            }

            int responseCode = connection.getResponseCode();
            if (responseCode != HttpURLConnection.HTTP_OK) {
                log.error("利盟服务请求失败，响应码：{}，请求参数：{}", responseCode, lexMarkDTO);
                throw new RRException("利盟服务请求失败，响应码：" + responseCode);
            }

            BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            String inputLine;
            StringBuilder response = new StringBuilder();
            while ((inputLine = in.readLine()) != null) {
                response.append(inputLine);
            }
            in.close();

            // 将响应JSON字符串转换为LexMarkResultDTO对象
            LexMarkResultDTO<T> lexMarkResultDTO = JSON.parseObject(response.toString(), LexMarkResultDTO.class);
            if (lexMarkResultDTO.getResult() != 0) {
                log.error("利盟服务请求出错：{}", lexMarkResultDTO);
                throw new RRException(lexMarkResultDTO.toString());
            }

            // 实例化param位data
            String param = lexMarkResultDTO.getParam();
            if (!StringUtils.isEmpty(param)) {
                try {
                    T t = JSON.parseObject(param, clazz);
                    lexMarkResultDTO.setData(t);
                }catch (Exception e){
                    log.error("类型转换失败");
                    throw new RRException("转换param位data时，类型与实际类型不匹配");
                }
            }

            return lexMarkResultDTO;
        } catch (Exception e) {
            log.error("利盟服务请求失败：{}", lexMarkDTO, e);
            if (e instanceof RRException) {
                throw new RRException(((RRException) e).getCode(), e.getMessage());
            }
            throw new RRException("利盟服务请求失败");
        }
    }


    /**
     * 数据对象的data采用JSONObject进行接收
     *
     * @param lexMarkDTO 请求参数
     * @return result
     */
    public LexMarkResultDTO<JSONObject> callDevice(LexMarkDTO lexMarkDTO) {
        return callDevice(lexMarkDTO, JSONObject.class);
    }

}