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import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Formatter;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;
import javax.annotation.Resource;
import org.springframework.stereotype.Service;
import com.listenlives.dao.WXTokenDao;
import com.listenlives.domain.WXToken;
import com.listenlives.information.util.HttpHelper;
import net.sf.json.JSONObject;
@SuppressWarnings("static-access")
@Service
public class WXTokenServiceImpl {
String nonce_str = create_nonce_str();
String timestamp = create_timestamp();
String signature = "";
String jsapiTicket = "";
String assceeToken = "";
try {
WXToken wxToken = wxTokenDao.selectWXToken();
assceeToken = wxToken.getAccessToken();
if (compareWithExpiresIn(wxToken.getCreateTime())) {
assceeToken = getNewAccessToken();
}
jsapiTicket = getNewJSAPITicket(assceeToken, 0).get("ticket").toString();
signature = "jsapi_ticket=" + jsapiTicket +
"&noncestr=" + nonce_str +
"×tamp=" + timestamp +
"&url=" + url;
MessageDigest crypt = MessageDigest.getInstance("SHA-1");
crypt.reset();
crypt.update(signature.getBytes("UTF-8"));
signature = byteToHex(crypt.digest());
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
resultMap.put("url", url);
resultMap.put("nonceStr", nonce_str);
resultMap.put("timestamp", timestamp);
resultMap.put("signature", signature);
return resultMap;
}
public boolean compareWithExpiresIn(String createTime) {
boolean flag = false;
DateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Date nowDate;
Date tokenDate;
long diff;
try {
nowDate = df.parse(df.format(new Date()));
tokenDate = df.parse(createTime);
diff = nowDate.getTime() - tokenDate.getTime();
flag = diff > 7200000;
} catch (ParseException e) {
e.printStackTrace();
}
return flag;
}
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;
}
private String create_nonce_str() {
return UUID.randomUUID().toString();
}
private String create_timestamp() {
return Long.toString(System.currentTimeMillis() / 1000);
}
public String getNewAccessToken() {
String url = "https://api.weixin.qq.com/cgi-bin/token";
String data = "";
String result = "";
try {
Map<String, String> accessMap = new HashMap<String, String>();
accessMap.put("grant_type", "client_credential");
accessMap.put("appid", ${appid});
accessMap.put("secret", ${secret});
data = HttpHelper.post(accessMap, url);
if (data != null && data != "") {
JSONObject json = new JSONObject().fromObject(data);
String access_token = (String) json.get("access_token");
if (null != access_token && !"".equals(access_token)) {
WXToken wxToken = new WXToken();
wxToken.setAccessToken(access_token);
wxTokenDao.updateWXToken(wxToken);
result = access_token;
}
}
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
public Map<String, Object> getNewJSAPITicket(String accessToken, int flag) {
if (flag > 1) {
return null;
}
String url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket";
String data = "";
Map<String, Object> resultMap = new HashMap<String, Object>();
try {
Map<String, String> accessMap = new HashMap<String, String>();
accessMap.put("access_token", accessToken);
accessMap.put("type", "jsapi");
data = HttpHelper.post(accessMap, url);
if (data != null && data != "") {
JSONObject json = new JSONObject().fromObject(data);
String ticket = (String) json.get("ticket");
if (null != ticket && !"".equals(ticket)) {
resultMap.put("ticket", ticket);
} else {
resultMap = getNewJSAPITicket(getNewAccessToken(), flag + 1);
}
}
} catch (Exception e) {
e.printStackTrace();
}
return resultMap;
}
}
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