package com.java110.core.factory;
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import com.alibaba.fastjson.JSONObject;
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import com.java110.utils.cache.JWTCache;
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import com.java110.utils.constant.WechatConstant;
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import com.java110.utils.factory.ApplicationContextFactory;
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import com.java110.utils.util.StringUtil;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.web.client.RestTemplate;
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import sun.misc.BASE64Decoder;
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import javax.crypto.Cipher;
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import javax.crypto.spec.IvParameterSpec;
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import javax.crypto.spec.SecretKeySpec;
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import java.util.Date;
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/**
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* @ClassName WechatFactory
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* @Description TODO
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* @Author wuxw
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* @Date 2020/6/13 22:15
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* @Version 1.0
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* add by wuxw 2020/6/13
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**/
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public class WechatFactory {
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private static Logger logger = LoggerFactory.getLogger(WechatFactory.class);
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private static final String password = "you are bad boy!";
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private static final String WECHAT = "WECHAT";
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private static final String SPLIT_STUB = "-";
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public static String formatText(String toUserName, String fromUserName, String content) {
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String str = "";
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str = String.format("<xml><ToUserName><![CDATA[%1$s]]></ToUserName><FromUserName><![CDATA[%2$s]]></FromUserName><CreateTime>%3$s</CreateTime><MsgType><![CDATA[text]]></MsgType><Content><![CDATA[%4$s]]></Content><FuncFlag>0</FuncFlag></xml>", new Object[]{
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fromUserName, toUserName, Long.valueOf((new Date()).getTime()), content
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});
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return str;
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}
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/**
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* 获取accessToken
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*
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* @param appId 公众号ID
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* @param appSecure
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* @return
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*/
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public static String getAccessToken(String appId, String appSecure) {
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String accessToken = JWTCache.getValue(WECHAT + appId);
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if (StringUtil.isEmpty(accessToken)) {
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return refreshAccessToken(appId, appSecure);
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}
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return accessToken;
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}
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/**
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* 刷新 access_token
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*
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* @param appId 应用ID
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* @param appSecure 应用秘钥
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* @return
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*/
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private static String refreshAccessToken(String appId, String appSecure) {
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String url = WechatConstant.GET_ACCESS_TOKEN.replace("APPID", appId)
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.replace("SECRET", appSecure);
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RestTemplate outRestTemplate = ApplicationContextFactory.getBean("outRestTemplate", RestTemplate.class);
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String response = outRestTemplate.getForObject(url, String.class);
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logger.debug("获取access_token 入参：" + url + " 返回参数" + response);
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JSONObject responseObj = JSONObject.parseObject(response);
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if (responseObj.containsKey("access_token")) {
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String accessToken = responseObj.getString("access_token");
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int expiresIn = responseObj.getInteger("expires_in");
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JWTCache.setValue(WECHAT + appId, accessToken, expiresIn - 200);
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return accessToken;
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}
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return "";
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}
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/**
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* 获取微信页面ID
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*
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* @param appId
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* @return
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*/
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public static String getWId(String appId) {
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return AuthenticationFactory.encrypt(password, appId);
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}
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/**
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* 获取微信AppId
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*
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* @param wId
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* @return
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*/
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public static String getAppId(String wId) {
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wId = wId.replace(" ", "+");
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return AuthenticationFactory.decrypt(password, wId);
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}
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public static String getPhoneNumberBeanS5(String decryptData, String key, String iv) {
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/*
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*这里你没必要非按照我的方式写，下面打代码主要是在一个自己的类中 放上decrypts5这个解密工具，工具在下方有代码
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*/
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String resultMessage = decryptS5(decryptData, "UTF-8", key, iv);
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return resultMessage;
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}
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public static String decryptS5(String sSrc, String encodingFormat, String sKey, String ivParameter) {
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try {
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BASE64Decoder decoder = new BASE64Decoder();
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byte[] raw = decoder.decodeBuffer(sKey);
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SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
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IvParameterSpec iv = new IvParameterSpec(decoder.decodeBuffer(ivParameter));
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Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
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cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv);
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byte[] myendicod = decoder.decodeBuffer(sSrc);
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byte[] original = cipher.doFinal(myendicod);
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String originalString = new String(original, encodingFormat);
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return originalString;
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} catch (Exception ex) {
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return null;
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}
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}
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}
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