WeixinBaseUtil.java
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package com.server.utils.weixin;
import com.alibaba.fastjson.JSON;
import com.jfinal.weixin.sdk.api.JsTicket;
import com.jfinal.weixin.sdk.api.JsTicketApi;
import com.jfinal.weixin.sdk.kit.ParaMap;
import com.jfinal.weixin.sdk.utils.HttpUtils;
import com.server.utils.weixin.bean.SnsAccessTokenBean;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.http.converter.StringHttpMessageConverter;
import org.springframework.util.StringUtils;
import org.springframework.web.client.RestTemplate;
import java.io.UnsupportedEncodingException;
import java.nio.charset.StandardCharsets;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Formatter;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;
/**
* Created by 豆腐干Sama on 2018/12/5.
*/
public class WeixinBaseUtil {
static Logger logger = LoggerFactory.getLogger(WeixinBaseUtil.class);
//获取微信accesstockenurl
public static final String ACCESS_TOKEN_URL = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential";
//获取网页access_token
private static String SNS_ACCESS_TOKEN_URL = "https://api.weixin.qq.com/sns/oauth2/access_token?appid={appid}&secret={secret}&code={code}&grant_type=authorization_code";
//获取用户信息url
private static String USER_INFO_URL = "https://api.weixin.qq.com/sns/userinfo";
private static String JsapiTicketURL = "https://api.weixin.qq.com/cgi-bin/ticket/getticket";
public static Map<String, Object> authorization(String appId, String appSecret, String code) {
if (StringUtils.hasText(appId) && StringUtils.hasText(appSecret) && StringUtils.hasText(code)) {
final String queryAccessTokeUrl = SNS_ACCESS_TOKEN_URL.replace("{appid}", appId).replace("{secret}", appSecret).replace("{code}", code);
RestTemplate restTemplate = new RestTemplate();
String json = restTemplate.getForObject(queryAccessTokeUrl, String.class);
SnsAccessTokenBean snsAccessTokenBean = new SnsAccessTokenBean(json);
String accessToken = snsAccessTokenBean.getAccessToken();
String openid = snsAccessTokenBean.getOpenid();
restTemplate.getMessageConverters().set(1, new StringHttpMessageConverter(StandardCharsets.UTF_8));
String userInfoJsonStr = restTemplate.getForObject(USER_INFO_URL + "?access_token=" + accessToken + "&openid=" + openid + "&lang=zh_CN", String.class);
Map userInfoResultMap = JSON.parseObject(userInfoJsonStr, Map.class);
Number errCode = (Number) userInfoResultMap.get("errcode");
Integer errorCode = (errCode == null ? null : Integer.valueOf(errCode.intValue()));
if (errorCode == null || errorCode.intValue() == 0) {
userInfoResultMap.put("wxAccessToken", snsAccessTokenBean.getAccessToken());
userInfoResultMap.put("wxRefreshToken", snsAccessTokenBean.getRefresh_token());
return userInfoResultMap;
}
} else {
logger.error("参数有误");
return null;
}
return null;
}
/**
* 获取微信 ticket
*
* @param appId
* @param accesstoken
* @param url
* @param redisTemplate
* @return
*/
public static String getTicket(String appId, String accesstoken, String url, RedisTemplate redisTemplate) {
String key = appId + '_' + JsTicketApi.JsApiType.jsapi.name();
final ParaMap pm = ParaMap.create("access_token", accesstoken).put("type", JsTicketApi.JsApiType.jsapi.name());
boolean redisTicket = true;
String json = "";
if (redisTemplate.hasKey("wx_ticket_" + key)) {
json = (String) redisTemplate.opsForValue().get("wx_ticket_" + appId);
if (StringUtils.hasText(json)) {
redisTicket = false;
}
}
if (redisTicket) {
json = HttpUtils.get(WeixinBaseUtil.JsapiTicketURL, pm.getData());
}
JsTicket jsTicket = new JsTicket(json);
return jsTicket.getTicket();
}
public static Map<String, Object> sign(String jsapi_ticket, String url, String appId) {
Map<String, Object> ret = new HashMap<String, Object>();
String nonce_str = UUID.randomUUID().toString();
String timestamp = Long.toString(System.currentTimeMillis() / 1000);
String str;
String signature = "";
//注意这里参数名必须全部小写，且必须有序
str = "jsapi_ticket=" + jsapi_ticket + "&noncestr=" + nonce_str + "×tamp=" + timestamp + "&url=" + url;
try {
MessageDigest crypt = MessageDigest.getInstance("SHA-1");
crypt.reset();
crypt.update(str.getBytes("UTF-8"));
signature = byteToHex(crypt.digest());
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
ret.put("appId", appId);
ret.put("url", url);
ret.put("jsapi_ticket", jsapi_ticket);
ret.put("nonceStr", nonce_str);
ret.put("timestamp", timestamp);
ret.put("signature", signature);
return ret;
}
private static String byteToHex(final byte[] hash) {
Formatter formatter = new Formatter();
for (byte b : hash) {
formatter.format("%02x", b);
}
String result = formatter.toString();
formatter.close();
return result;
}
}