WxXcxAuthGetAccessTokenRequest.java

package com.yanzuoguang.wxxcx.token;

import com.alibaba.fastjson.TypeReference;
import com.yanzuoguang.util.helper.CheckerHelper;
import com.yanzuoguang.util.helper.HttpHelper;
import com.yanzuoguang.util.helper.JsonHelper;
import com.yanzuoguang.wxxcx.base.*;

/**
 * 获取小程序全局唯一后台接口调用凭据 转换
 *
 * @author 李贤军
 */
public class WxXcxAuthGetAccessTokenRequest implements WxXcxRequestUrl, WxXcxRequestUrlPara {

    private final WxXcxConfig wxXcxConfig;
    private final WxXcxRequest wxXcxRequest;
    private final WxXcxAuthGetAccessTokenReq req;

    public WxXcxAuthGetAccessTokenRequest(WxXcxConfig wxXcxConfig, WxXcxRequest wxXcxRequest, WxXcxAuthGetAccessTokenReq req) {
        this.wxXcxConfig = wxXcxConfig;
        this.wxXcxRequest = wxXcxRequest;
        this.req = req;
    }

    @Override
    public String getUrl() {
        return "https://api.weixin.qq.com/cgi-bin/token" + "?" + this.getUrlPara();
//        return wxXcxConfig.getBaseUrl() + wxXcxConfig.getAuthGetAccessTokenUrl() + "?" + this.getUrlPara();
    }

    @Override
    public String getUrlPara() {
        return HttpHelper.getUrlParameter(req);
    }

    public WxXcxAuthGetAccessTokenRes getResponse() {
        checkParam(req);
        return this.wxXcxRequest.request(this, response -> {
            WxXcxAuthGetAccessTokenRes ret = JsonHelper.deserialize(response, new TypeReference<WxXcxAuthGetAccessTokenRes>() {
            });
            WxXcxAssert.assertBaseError(ret);
            return ret;
        });
    }

    private void checkParam(WxXcxAuthGetAccessTokenReq req) {
        CheckerHelper.newInstance()
                .notBlankCheck("grant_type", req.getGrant_type())
                .notBlankCheck("appid", req.getAppid())
                .notBlankCheck("secret", req.getSecret())
                .checkException();
    }
}