所属地区名 订阅消息类搭建

fengjin

2022-10-11 5dbea4c452f77c5458e55762c94c2f830eb98617

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package com.dg.core.util;
 
import com.alibaba.fastjson.JSON;
import com.dg.core.db.manual.mapper.util.ConstantPropertiesUtil;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
 
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
 
public class WxUtil {
 
    private static String ACCESS_TOKEN_URL = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential";
 
    /**
     * 获取花城token，（ps:0=token获取失败）
     *
     * @return
     */
    public String getBatteryCarAccessToken() throws Exception {
        String accessToken = "0";
        try {
            // 此处APP_ID APP_SECRET 在微信小程序后端可见
            // String accessTokenUrl = String.format(TEMP_URL, APP_ID, APP_SECRET);
            String accessTokenUrl = ACCESS_TOKEN_URL + "&appid=" + ConstantPropertiesUtil.WX_OPEN_APP_ID
                    + "&secret=" + ConstantPropertiesUtil.WX_OPEN_APP_SECRET;
            String result = this.httpGet(accessTokenUrl, null, null);
            Map<String, Object> resultMap = JSON.parseObject(result, Map.class);
            if (resultMap.containsKey("access_token")) {
                accessToken = resultMap.get("access_token").toString();
            }
        } catch (IOException ioe) {
            ioe.printStackTrace();
        }
        return accessToken;
    }
 
 
    /**
     * http请求工具类，get请求
     *
     * @param url
     * @param params
     * @param resonseCharSet
     * @return
     * @throws Exception
     */
    public static String httpGet(String url, Map<String, Object> params, String... resonseCharSet) throws Exception {
        DefaultHttpClient defaultHttpClient = null;
        BufferedReader bufferedReader = null;
        try {
            defaultHttpClient = new DefaultHttpClient();
            if (params != null) {
                StringBuilder stringBuilder = new StringBuilder();
                Iterator<String> iterator = params.keySet().iterator();
                String key;
                while (iterator.hasNext()) {
                    key = iterator.next();
                    Object val = params.get(key);
                    if (val instanceof List) {
                        List v = (List) val;
                        for (Object o : v) {
                            stringBuilder.append(key).append("=").append(o.toString()).append("&");
                        }
                    } else {
                        stringBuilder.append(key).append("=").append(val.toString()).append("&");
                    }
                }
                stringBuilder.deleteCharAt(stringBuilder.length() - 1);
                url = url + "?" + stringBuilder.toString();
            }
            HttpGet httpGet = new HttpGet(url);
            httpGet.setHeader("Content-Type", "application/json;charset=ut-8");
            HttpResponse httpResponse = defaultHttpClient.execute(httpGet);
            if (httpResponse.getStatusLine().getStatusCode() != 200) {
                String errorLog = "请求失败，errorCode:" + httpResponse.getStatusLine().getStatusCode();
 
                throw new Exception(url + errorLog);
            }
            // 读取返回信息
            String charSet = "utf-8";
            if (resonseCharSet != null && resonseCharSet.length > 0)
                charSet = resonseCharSet[0];
            String output;
            bufferedReader = new BufferedReader(new InputStreamReader(httpResponse.getEntity().getContent(), charSet));
 
            StringBuilder dataBuilder = new StringBuilder();
            while ((output = bufferedReader.readLine()) != null) {
                dataBuilder.append(output);
            }
            return dataBuilder.toString();
        } catch (IOException e) {
            e.printStackTrace();
            throw e;
        } finally {
            if (defaultHttpClient != null)
                defaultHttpClient.getConnectionManager().shutdown();
            if (bufferedReader != null)
                bufferedReader.close();
        }
    }
 
 
 
}