package com.smtaiserver.smtaiserver.weixinLogin;
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import cn.hutool.core.util.ArrayUtil;
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import cn.hutool.core.util.StrUtil;
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import cn.hutool.http.HttpUtil;
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import com.fasterxml.jackson.core.type.TypeReference;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import com.smtaiserver.smtaiserver.core.SMTAIServerApp;
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import com.smtservlet.util.Json;
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import java.util.Map;
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/**
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* description: WeChatUtils 微信获取用户工具类<br>
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*
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* @date: 2021/8/19 0019 上午 10:05 <br>
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* @author: William <br>
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* version: 1.0 <br>
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*/
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public class WeChatUtils {
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private static final ObjectMapper OBJECT_MAPPER = new ObjectMapper();
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/**
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* 获取微信accessToken路径
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*/
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private static final String GET_ACCESS_TOKEN_URL = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=APPID&secret=SECRET&code=CODE&grant_type=authorization_code";
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public WeChatUtils() throws Exception {
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}
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/**
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* description: getAccessToken 根据code获取accessToken<br>
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* version: 1.0 <br>
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*
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* @param code 微信用户授权code
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* @return java.util.Map<java.lang.String, java.lang.String>
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* @date: 2021/8/19 0019 上午 10:10 <br>
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* @author: William <br>
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*/
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public static Map<String, String> getAccessToken(String code) throws Exception {
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Json weixinAppidSecret = (Json) SMTAIServerApp.getApp().getGlobalConfig("weixin_appid_secret");
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String appid = weixinAppidSecret.safeGetStr("appid", null);
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String secret = weixinAppidSecret.safeGetStr("secret", null);
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return getAccessToken(code, appid, secret);
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}
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/**
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* description: getAccessToken 根据code获取微信用户信息，返回map如果正确map包含access_token ,如果错误则包含：errcode<br>
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* version: 1.0 <br>
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*
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* @param code 微信授权code
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* @param appId 微信appId
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* @param appSecret 微信appSecret
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* @return java.util.Map<java.lang.String, java.lang.String>
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* @date: 2021/8/19 0019 上午 10:11 <br>
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* @author: William <br>
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*/
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public static Map<String, String> getAccessToken(String code, String appId, String appSecret) throws Exception {
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//判断所有字段不能为空
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if (isAnyBlank(code, appId, appSecret)) {
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throw new IllegalArgumentException("参数错误");
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}
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String requestUrl = GET_ACCESS_TOKEN_URL
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.replace("APPID", appId)
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.replace("SECRET", appSecret)
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.replace("CODE", code);
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String result = HttpUtil.get(requestUrl);
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return parseMap(result);
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}
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/**
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* description: isAnyBlank 判断是否存在空字符串，Hutool未编写<br>
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* version: 1.0 <br>
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*
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* @param strs 字符串
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* @return java.lang.Boolean
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* @date: 2021/8/19 0019 上午 10:25 <br>
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* @author: William <br>
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*/
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public static Boolean isAnyBlank(CharSequence... strs) {
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//如果为空直接返回true
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if (ArrayUtil.isEmpty(strs)) {
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return true;
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}
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for (CharSequence str : strs) {
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if (StrUtil.isBlank(str)) {
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return true;
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}
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}
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return false;
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}
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public static Map<String, String> parseMap(String json) {
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try {
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return OBJECT_MAPPER.readValue(json, new TypeReference<Map<String, String>>() {
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});
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} catch (Exception e) {
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throw new RuntimeException("JSON 解析失败", e);
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}
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}
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}
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