1. 设置 RestTemplate 申请工具

在 common 文件夹下创立 HTTPRequestRes.java（个别通用的工具或办法都创立在海星的 common 文件夹下）
在该文件内设置 RestTemplate 申请工具
代码如下：

package com.hikvision.isc.common.utils;

import com.hikvision.starfish.core.response.business.BaseResponse;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import com.alibaba.fastjson.JSONObject;
import org.springframework.http.*;
import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;
import org.springframework.web.client.RestTemplate;

@Component
public class HTTPRequestRes {private static final Logger logger = LoggerFactory.getLogger(HTTPRequestRes.class);
    public static final String ACCEPT = "Accept";
    public static final String CONTENT_ENCODING = "Content-Encoding";
    public static final String CONTENT_TYPE = "Content-Type";
    private static BaseResponse baseResponse = new BaseResponse();
    @Autowired
    private RestTemplate restTemplate;

    public <T> BaseResponse RestTemplate(String userId, String url, HttpMethod httpMethod, Object content, Class<T> t) throws Exception {if (StringUtils.isEmpty(url)) {return baseResponse;}
        HttpHeaders headers = getHttpHeaders(userId);
        headers.setContentType(MediaType.APPLICATION_JSON);
        HttpEntity<Object> entity = new HttpEntity<>(content, headers);
        ResponseEntity<String> responseEntity = restTemplate.exchange(url, httpMethod, entity, String.class);
        String ret = responseEntity.getBody();
        baseResponse = JSONObject.parseObject(ret, BaseResponse.class);

        return baseResponse;
    }

    public static HttpHeaders getHttpHeaders(String userId) {HttpHeaders headers = new HttpHeaders();
        headers.add(ACCEPT, "application/json");
        headers.add(CONTENT_ENCODING, "UTF-8");
        headers.add(CONTENT_TYPE, "application/json; charset=UTF-8");
        headers.add("userId",userId);
        return headers;
    }
}

2. 调用 RestTemplate 申请工具申请 irds 组件的相干接口

以 irds 组件的以下接口为例：

（1）在 service.impl 文件夹下创立任意文件
在 service.impl 文件夹下创立 MyIrdsService，
在代码中自定义办法，设置参数，通过调用 RestTemplate 申请办法进行申请

package com.hikvision.isc.module.business.service.impl;

import com.alibaba.fastjson.JSONObject;
import com.hikvision.isc.common.utils.HTTPRequestRes;
import com.hikvision.starfish.core.response.business.BaseResponse;
import com.hikvision.starfish.irds.response.PageData;
import com.hikvision.starfish.irds.service.IIrdsService;
import com.hikvision.starfish.irds.vo.RegionQueryReqVo;
import com.hikvision.starfish.irds.vo.RegionVo;
import com.hikvision.starfish.irds.vo.SubRegionQueryReqVo;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import com.hikvision.isc.common.errorcode.DefaultErrorCode;

import org.springframework.http.HttpMethod;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class MyIrdsService {private static Logger logger = LoggerFactory.getLogger(MyIrdsService.class);

    private static final String IRDS = "irds";
    private static final String IRDS_CAMERA_LIST = "/irds/api/v1/camera/advance/cameraList";


    @Autowired
    private HTTPRequestRes httpRequestRes;

    /** 依据监控点名称获取列表 */
    public BaseResponse queryCameraListByName(String cameraName, String userId){BaseResponse baseResponse = new BaseResponse();
        
        // 拼接残缺的相应接口的残缺申请地址
        String url = "http://" + IRDS + "." + IRDS + IRDS_CAMERA_LIST;
        try{
            // 在这里设置接口的申请参数
            JSONObject jsonObject = new JSONObject();
            jsonObject.put("pageNo", 1);         // 起始页
            jsonObject.put("pageSize", 1000);   // 指定每页的记录数据量大小
            jsonObject.put("cameraName", cameraName);  // 监控点名称
            jsonObject.put("isCascade", 2);     // 是否级联, 0：非级联, 1：级联, 2：不限

            //userId: 用户名  url：接口申请地址  HttpMethod.POST：申请形式（能够为 GET、POST、PUT 申请等）jsonObject：申请参数
            // 调用 RestTemplate 申请工具，传入相应参数进行申请
            baseResponse = httpRequestRes.RestTemplate(userId, url, HttpMethod.POST, jsonObject, JSONObject.class);
            return baseResponse;
        }catch (Exception e){baseResponse = exection(url + e.getMessage());
            return baseResponse;
        }
    }

    public BaseResponse exection(String message) {BaseResponse baseResponse = new BaseResponse();
        baseResponse.setCode("-1");
        baseResponse.setMsg(message);
        logger.error("irds 拜访失败", message);
        return baseResponse;
    }
}

3. 定义 service 接口以及接口实现类

在 service 中定义接口

在接口实现类中重写接口中的办法，调用 2 中的办法即可

4. 定义 controller 层

5. 进行测试

调用胜利，胜利从 irds 组件取得指定的数据