通用框架——通过RestTemplate调用irds组件接口获取数据

1. 设置RestTemplate请求工具

在common文件夹下创建HTTPRequestRes.java（一般通用的工具或方法都创建在海星的common文件夹下）
在该文件内设置RestTemplate请求工具
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  BaseResponse RestTemplate(String userId, String url, HttpMethod httpMethod, Object content, Class t) throws Exception {
        if (StringUtils.isEmpty(url)) {
            return baseResponse;
        }
        HttpHeaders headers = getHttpHeaders(userId);
        headers.setContentType(MediaType.APPLICATION_JSON);
        HttpEntity