微信小程序-getUserProfile示例与后台

Page({
data: {
hasUserInfo: false,
canIUseGetUserProfile: false,
},
onLoad() {
/* 从缓存中取出去数据 */
let userInfo = wx.getStorageSync(‘userInfo‘);
let wxInfos = wx.getStorageSync(‘wxInfos‘);
if (0 == Object.keys(userInfo).length) {
this.setData({
canIUseGetUserProfile: true
})
}else{
this.setData({
hasUserInfo:true,
userInfo:userInfo,
wxInfos:wxInfos
})
}
},
getUserProfile(e) {
var _self = this;
wx.getUserProfile({
desc: ‘用于完善会员资料‘,
success: (res) => {
wx.login({
success:(rs) => {
if(rs.code){
let dataJson = {
appId: ‘wx245235775710d615‘,
code : rs.code,
iv : res.iv,
encryptedData : res.encryptedData
}
wx.request({
url: "https://zgxmcp.com/wxtestweb/miniback/SYS0001",
header: {"content-type": "application/x-www-form-urlencoded;charset=UTF-8"},
data: dataJson,
method: ‘POST‘,
success: function (rs) {
let data = rs.data;
if(data.stateCode=="0"){
var result = JSON.parse(data.result);
_self.setData({
hasUserInfo: true,
userInfo:result,
wxInfos:JSON.parse(result.wxInfos)
})
/* 使用缓存记录信息 */
wx.setStorageSync(‘userInfo‘, result);
wx.setStorageSync(‘wxInfos‘, JSON.parse(result.wxInfos));
}else {
console.log(data)
}
}
})
}
}
})
},fail:()=>{
console.log("拒绝授权");
}
})
}
})

<view>
<view>
<block wx:if="{{!hasUserInfo}}">
<button wx:if="{{canIUseGetUserProfile}}" bindtap="getUserProfile"> 获取头像昵称 </button>
</block>
<block wx:else>
<image bindtap="bindViewTap" src="http://www.bubuko.com/{{wxInfos.avatarUrl}}" mode="cover"></image>
<text>{{wxInfos.nickName}}</text>
<text>openId=> {{userInfo.openid}}</text>
<text>unionId=> {{userInfo.unionid}}</text>
</block>
</view>
</view>

import org.apache.commons.lang.StringUtils;
import com.alibaba.fastjson.JSONObject;
import com.src.minback.utils.HttpRequest;
import com.src.minback.utils.WxAesUtil;
/**
* 模拟获取微信用户信息及微信小程序版本信息
*
* @author liuwl
*/
public class GetWxInfoServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
static String wxspAppid = "wxfc5a797bc1295c71";
static String wxspSecret = "47067172d687958df709f9396b83e3ed";
static String grant_type = "authorization_code";
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
// 设置字符集
req.setCharacterEncoding("UTF-8");
resp.setCharacterEncoding("UTF-8");
// 获取输出
PrintWriter out = resp.getWriter();
JSONObject jsonObj = new JSONObject();
JSONObject result = new JSONObject();
System.out.println("wx.login 返回的code:" + req.getParameter("code"));
String code = req.getParameter("code");
// 登录凭证不能为空
if (code != null && code.length() > 0) {
// 请求参数
String params = "appid=" + wxspAppid + "&secret=" + wxspSecret + "&js_code=" + code + "&grant_type=" + grant_type;
// 发送请求
String sr = HttpRequest.sendGet("https://api.weixin.qq.com/sns/jscode2session", params);
// 解析相应内容（转换成json对象）
JSONObject json = JSONObject.parseObject(sr);
// 获取会话密钥（session_key）
String session_key = json.get("session_key").toString();
System.out.println("session_key:" + session_key);
// 用户的唯一标识（openid）
String openid = (String) json.get("openid");
System.out.println("openid:" + openid);
result.put("openid", openid);
// 开放平台的唯一标识符（unionid）
String unionid = (String) json.get("unionid");
System.out.println("unionid:" + unionid);
result.put("unionid", unionid);
if (StringUtils.isNotEmpty(openid)) {
jsonObj.put("stateCode", "0");
jsonObj.put("stateDesc", "操作成功");
// 解密encryptedData
try {
String encryptedData = req.getParameter("encryptedData");
String iv = req.getParameter("iv");
System.out.println("iv:" + iv);
System.out.println("encryptedData:" + encryptedData);
JSONObject decryptData = WxAesUtil.decrypt(encryptedData, session_key, iv, "UTF-8");
System.out.println("-->" + decryptData);
if (decryptData!=null) {
result.put("wxInfos", decryptData.toString());
}
jsonObj.put("result", result.toJSONString());
} catch (Exception e) {
e.printStackTrace();
}
} else {
jsonObj.put("stateCode", "1");
jsonObj.put("stateDesc", "获取失败");
}
} else {
jsonObj.put("stateCode", "3");
jsonObj.put("stateDesc", "code为空");
}
System.out.println("仅获取微信用户所有信息（userData）:" + jsonObj);
out.print(jsonObj);
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
doGet(req, resp);
}
}

import org.apache.commons.codec.binary.Base64;
import org.bouncycastle.jce.provider.BouncyCastleProvider;
import com.alibaba.fastjson.JSONObject;
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 java.io.UnsupportedEncodingException;
import java.security.*;
import java.security.spec.InvalidParameterSpecException;
import java.util.Arrays;
public class WxAesUtil {
static {
//BouncyCastle是一个开源的加解密解决方案，主页在http://www.bouncycastle.org/
Security.addProvider(new BouncyCastleProvider());
}
/**
* AES解密
*
* @param data           //密文，被加密的数据
* @param key            //秘钥
* @param iv             //偏移量
* @param encodingFormat //解密后的结果需要进行的编码
* @return
* @throws Exception
*/
public static JSONObject decrypt(String data, String key, String iv, String encodingFormat) throws Exception {
//被加密的数据
byte[] dataByte = Base64.decodeBase64(data);
//加密秘钥
byte[] keyByte = Base64.decodeBase64(key);
//偏移量
byte[] ivByte = Base64.decodeBase64(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;
}
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 JSONObject.parseObject(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;
}
}