JAvaマイクロメッセージウィジェットユーザー情報の取得

/**
 *           openid session_key/unionid
 *     ：{"session_key":"ZXxmVGt78993dkNCPmQOA==","openid":"o5TI441P58849p4E-fBrH_HgVvGo","unionid":"oD08m1s24646ZIDJ_AQ9ADUf5QQ"}
 * @param code
 * @return
 * @throws Exception
 * @return JSONObject
 * @author tyg
 * @date   2019 4 25   2:24:22
 */
public static JSONObject getWechatSmallProgram(String code) throws Exception {
	//         (            )
	String wxspAppid = "wx456478dfsffdsfsdfsa";
	//      app secret (            )
	String wxspSecret = "4ds4f89d4afa46fsfsd";
	//    
	String url = "https://api.weixin.qq.com/sns/jscode2session?";
	//   （  ）
	String grant_type = "authorization_code";

	//1、              code    session_key   openid
	//     
	StringBuffer params = new StringBuffer("appid=").append(wxspAppid);
	params.append("&secret=").append(wxspSecret);
	params.append("&js_code=").append(code);
	params.append("&grant_type=").append(grant_type);
	String data = HttpTookit.doGet(url, params.toString(), "UTF-8", true);
LOG.info("
         ："+data);
	return JSONObject.parseObject(data);
}

package com.yt.distribution.util;
import java.io.UnsupportedEncodingException;
import java.security.AlgorithmParameters;
import java.security.InvalidAlgorithmParameterException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.security.Security;
import java.security.spec.InvalidParameterSpecException;

import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;

import org.apache.commons.codec.binary.Base64;
import org.bouncycastle.jce.provider.BouncyCastleProvider;

/**
 * Created by yfs on 2017/2/6.
 * 

 * AES-128-CBC     
 *  ：
 * AES-128-CBC      “  ” “   “。
 * AES-128 jdk     “  ”。
 */
public class AesCbcUtil {

    static {
        //BouncyCastle             ，   http://www.bouncycastle.org/
        Security.addProvider(new BouncyCastleProvider());
    }

    /**
     * AES  
     *
     * @param data           //  ，      
     * @param key            //  
     * @param iv             //   
     * @param encodingFormat //             
     * @return
     * @throws Exception
     */
    public static String decrypt(String data, String key, String iv, String encodingFormat) throws Exception {
//        initialize();

        //      
        byte[] dataByte = Base64.decodeBase64(data);
        //    
        byte[] keyByte = Base64.decodeBase64(key);
        //   
        byte[] ivByte = Base64.decodeBase64(iv);

        try {
            Cipher cipher = Cipher.getInstance("AES/CBC/PKCS7Padding");

            SecretKeySpec spec = new SecretKeySpec(keyByte, "AES");

            AlgorithmParameters parameters = AlgorithmParameters.getInstance("AES");
            parameters.init(new IvParameterSpec(ivByte));

            cipher.init(Cipher.DECRYPT_MODE, spec, parameters);//    

            byte[] resultByte = cipher.doFinal(dataByte);
            if (null != resultByte && resultByte.length > 0) {
                String result = new String(resultByte, encodingFormat);
                return result;
            }
            return null;
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        } catch (NoSuchPaddingException e) {
            e.printStackTrace();
        } catch (InvalidParameterSpecException e) {
            e.printStackTrace();
        } catch (InvalidKeyException e) {
            e.printStackTrace();
        } catch (InvalidAlgorithmParameterException e) {
            e.printStackTrace();
        } catch (IllegalBlockSizeException e) {
            e.printStackTrace();
        } catch (BadPaddingException e) {
            e.printStackTrace();
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }

        return null;
    }

}