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Dahua ICC Open API SDK for Java
There is a newer version: 1.0.13.7
package com.dahuatech.icc.oauth.utils;

import com.dahuatech.hutool.http.Method;
import com.dahuatech.hutool.json.JSONObject;
import com.dahuatech.hutool.json.JSONUtil;
import com.dahuatech.icc.exception.ClientException;
import com.dahuatech.icc.oauth.http.IccClient;
import com.dahuatech.icc.oauth.http.IccTokenResponse;
import com.dahuatech.icc.oauth.model.v202010.GeneralRequest;
import com.dahuatech.icc.oauth.model.v202010.GeneralResponse;
import com.dahuatech.icc.oauth.model.v202010.OauthConfigUserPwdInfo;
import com.dahuatech.icc.util.CollectionUtil;

import java.util.HashMap;
import java.util.Map;

public class HttpUtils {


    /**
     * 发送HTTP请求
     *
     * @param url         请求地址
     * @param bodyParams  请求体参数
     * @param formdParams 请求表单参数
     * @param headers     请求头
     * @param method      请求方法
     * @param config      用户密码配置信息
     * @return 响应结果
     * @throws ClientException 客户端异常
     */
    public static GeneralResponse execute(String url, Object bodyParams, Object formdParams, Map headers, Method method, OauthConfigUserPwdInfo config) throws ClientException {
        IccClient iClient = new IccClient(config);
        GeneralRequest generalRequest = new GeneralRequest(config.getHttpConfigInfo(), url, method);
        if (bodyParams != null) {//body体参数
            generalRequest.body(JSONUtil.toJsonStr(bodyParams));
        }
        if (formdParams != null) {//form表单提交
            JSONObject jsonObject = JSONUtil.parseObj(formdParams);
            generalRequest.form(jsonObject.toBean(HashMap.class));
        }
        if (!CollectionUtil.isEmpty(headers)) {
            generalRequest.setHeader(headers);
        }
        return iClient.doAction(generalRequest, generalRequest.getResponseClass());
    }


    /**
     * 执行JSON请求
     *
     * @param url        请求地址
     * @param bodyParams 请求参数
     * @param method     请求方法
     * @param config     用户密码配置信息
     * @return 响应结果
     * @throws ClientException 客户端异常
     */
    public static GeneralResponse executeJson(String url, Object bodyParams, Method method, OauthConfigUserPwdInfo config) throws ClientException {
        return execute(url, bodyParams, null, null, method, config);
    }


    /**
     * 执行带有表单数据的请求
     *
     * @param url         请求地址
     * @param formdParams 表单参数
     * @param method      请求方法
     * @param config      用户密码配置信息
     * @return 通用响应对象
     * @throws ClientException 客户端异常
     */
    public static GeneralResponse executeFormData(String url, Object formdParams, Method method, OauthConfigUserPwdInfo config) throws ClientException {
        return execute(url, null, formdParams, null, method, config);
    }

    /**
     * 获取访问令牌
     *
     * @param config 用户名和密码配置信息
     * @return 访问令牌响应对象
     * @throws ClientException 客户端异常
     */
    public static IccTokenResponse.IccToken getToken(OauthConfigUserPwdInfo config) throws ClientException {
        IccClient iClient = new IccClient(config);
        return iClient.getAccessToken();
    }
}