微信小程序服务器端换取token,sessionKey,微信用户信息解密).zip

package wechatServer.utils.wechatUtils; import java.io.UnsupportedEncodingException; import java.security.AlgorithmParameters; import java.security.InvalidAlgorithmParameterException; import java.security.InvalidKeyException; import java.security.NoSuchAlgorithmException; import java.security.NoSuchProviderException; import java.security.Security; import java.security.spec.InvalidParameterSpecException; import java.util.HashMap; import java.util.Map; 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; import org.bouncycastle.util.Arrays; import wechatServer.utils.HttpRequest; /** * 微信小程序信息获取 * @author Administrator * @Date 2017年2月16日 11:56:08 */ public class WXAppletUserInfo { public String appid = "wxe8bae68f346492bc"; public String secret = "49f69d9db2d57ff88247a60cda883f52"; public String grant_type = "authorization_code"; public String apiUrl = "https://api.weixin.qq.com/sns/jscode2session"; /** * 获取微信小程序 session_key 和 openid * @param code * @return */ public String getSessionKeyOropenid(String code){ //微信端登录code值 // String wxCode = code; // String requestUrl = "https://api.weixin.qq.com/sns/jscode2session"; // Map<String,String> requestUrlParam = new HashMap<String,String>(); // requestUrlParam.put("appid", "wxe8bae68f346492bc"); // requestUrlParam.put("secret","49f69d9db2d57ff88247a60cda883f52"); // requestUrlParam.put("js_code", wxCode); // requestUrlParam.put("grant_type", "authorization_code"); String params = "appid=" + appid + "&secret=" + secret + "&js_code=" + code + "&grant_type=" + grant_type; String res = HttpRequest.sendGet(apiUrl, params); return res; } public static void main(String[] args) { String userInfo = getUserInfo("HALDn/J5mmR6SPuAw7GVMSKm46WEubwZO+tVl9HZGVdWwrBRznoDHR6vWYYR8kl0sPCKAuVpbCTcP5JzTA53ILba713uksOyMg/x+BUQvrx0YGX6OaoJjyPA2RNTGyUR/Y5OUrBjIn0t9yR6IdxMFM8D6MnPBFbRmcY+d5Po2C9scC/KptvpnULqlOThEAJQ0LPj5P7Vm7Cv02m7vozFsAtJiwMeq1KUElcUfWUE2UcPgtP7nE3ay6xR5zMT2i8H4thU3g1UnyyvthOzJLjQyphAepY7/12CHs0YiEk/bsWZ4/TG3gHMI1udSzezjykc1ZLjKwtkrUsJpaRQR5cFW9H75ztNdSaII2OjYx1A5kSb4KKw9BdLXzFN4ZgHJNNCN59ngS4lLh8InxxdmtcK0+ffPtw8X5nGquvobxKIQxqcQK8W5EB7RhLtodqypklnAmiWPrC5D8pJ1CAqegPQfmUrJHe5FzOpqUlkAXu7jI8=", "RNODdGF03D4sHdWz7WBYuA==", "0cNQwzCD+pboTTWRL7wdwg=="); System.out.println(userInfo); } /** * 解密用户敏感数据获取用户信息 * @param sessionKey 数据进行加密签名的密钥 * @param encryptedData 包括敏感数据在内的完整用户信息的加密数据 * @param iv 加密算法的初始向量 * @return */ public static String getUserInfo(String encryptedData,String sessionKey,String iv){ Base64 base64 = new Base64(); // 被加密的数据 byte[] dataByte = base64.decode(encryptedData); // 加密秘钥 byte[] keyByte = base64.decode(sessionKey); // 偏移量 byte[] ivByte = base64.decode(iv); try { // 如果密钥不足16位，那么就补足. 这个if 中的内容很重要 int base = 16; if (keyByte.length % base != 0) { int groups = keyByte.length / base + (keyByte.length % base != 0 ? 1 : 0); byte[] temp = new byte[groups * base]; Arrays.fill(temp, (byte) 0); System.arraycopy(keyByte, 0, temp, 0, keyByte.length); keyByte = temp; } // 初始化 Security.addProvider(new BouncyCastleProvider()); Cipher cipher = Cipher.getInstance("AES/CBC/PKCS7Padding","BC"); SecretKeySpec spec = new SecretKeySpec(keyByte, "AES"); AlgorithmParameters parameters = AlgorithmParameters.getInstance("AES"); parameters.init(new IvParameterSpec(ivByte)); cipher.init(Cipher.DECRYPT_MODE, spec, parameters);// 初始化 byte[] resultByte = cipher.doFinal(dataByte); if (null != resultByte && resultByte.length > 0) { String result = new String(resultByte, "UTF-8"); return result; } } catch (NoSuchAlgorithmException e) { e.printStackTrace(); } catch (NoSuchPaddingException e) { e.printStackTrace(); } catch (InvalidParameterSpecException e) { e.printStackTrace(); } catch (IllegalBlockSizeException e) { e.printStackTrace(); } catch (BadPaddingException e) { e.printStackTrace(); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } catch (InvalidKeyException e) { e.printStackTrace(); } catch (InvalidAlgorithmParameterException e) { e.printStackTrace(); } catch (NoSuchProviderException e) { e.printStackTrace(); } return null; } }