上篇博文中说到登录需要两个接口，一个登录获取openid一个获取用户信息，并更新数据库的接口
在此，我为了方便把两个接口写在一起了，也没有写更新数据库的操作，这里只写如何获取openid和用户信息的操作
/*** d登录接口* @param encryptedData* @param iv* @param code* @return*/@PostMapping("/onLogin")public ResultData login(String encryptedData, String iv, String code) {if(!StringUtils.isNotBlank(code)){return ResultData.build(202,"未获取到用户凭证code");}String apiUrl="https://api./sns/jscode2session?appid="+appid+"&secret="+appSecret+"&js_code="+code+"&grant_type=authorization_code";System.out.println(apiUrl);String responseBody = HttpClientUtil.doGet(apiUrl);System.out.println(responseBody);JSONObject jsonObject = JSON.parseObject(responseBody);if(StringUtils.isNotBlank(jsonObject.getString("openid"))&&StringUtils.isNotBlank(jsonObject.getString("session_key"))){//解密获取用户信息JSONObject userInfoJSON=WechatGetUserInfoUtil.getUserInfo(encryptedData,jsonObject.getString("session_key"),iv);if(userInfoJSON!=null){//这步应该set进实体类Map userInfo = new HashMap();userInfo.put("openId", userInfoJSON.get("openId"));userInfo.put("nickName", userInfoJSON.get("nickName"));userInfo.put("gender", userInfoJSON.get("gender"));userInfo.put("city", userInfoJSON.get("city"));userInfo.put("province", userInfoJSON.get("province"));userInfo.put("country", userInfoJSON.get("country"));userInfo.put("avatarUrl", userInfoJSON.get("avatarUrl"));// 解密unionId & openId;if (userInfoJSON.get("unionId")!=null) {userInfo.put("unionId", userInfoJSON.get("unionId"));}//然后根据openid去数据库判断有没有该用户信息，若没有则存入数据库，有则返回用户数据Map<String,Object> dataMap = new HashMap<>();dataMap.put("userInfo", userInfo);String uuid=UUID.randomUUID().toString();dataMap.put("WXTOKEN", uuid);redisTemplate.opsForValue().set(uuid,userInfo);redisTemplate.expire(uuid,appTimeOut,TimeUnit.SECONDS);return ResultData.build(200,"登陆成功",dataMap);}else{return ResultData.build(202,"解密失败");}}else{return ResultData.build(202,"未获取到用户openid 或 session");}}
这里用到两个工具类
1.HttpClientUtil
package com.example.wxdemo.utils;import java.io.IOException;import .URI;import java.util.ArrayList;import java.util.List;import java.util.Map;import java.util.Map.Entry;import org.apache.http.HttpEntity;import org.apache.http.NameValuePair;import org.apache.http.client.ClientProtocolException;import org.apache.http.client.entity.UrlEncodedFormEntity;import org.apache.http.client.methods.CloseableHttpResponse;import org.apache.http.client.methods.HttpGet;import org.apache.http.client.methods.HttpPost;import org.apache.http.client.utils.URIBuilder;import org.apache.http.entity.ContentType;import org.apache.http.entity.StringEntity;import org.apache.http.impl.client.CloseableHttpClient;import org.apache.http.impl.client.HttpClients;import org.apache.http.message.BasicNameValuePair;import org.apache.http.util.EntityUtils;public class HttpClientUtil {public static String doGet(String url, Map<String, String> param) {// 创建Httpclient对象CloseableHttpClient httpclient = HttpClients.createDefault();String resultString = "";CloseableHttpResponse response = null;try {// 创建uriURIBuilder builder = new URIBuilder(url);if (param != null) {for (String key : param.keySet()) {builder.addParameter(key, param.get(key));}}URI uri = builder.build();// 创建http GET请求HttpGet httpGet = new HttpGet(uri);// 执行请求response = httpclient.execute(httpGet);// 判断返回状态是否为200if (response.getStatusLine().getStatusCode() == 200) {resultString = EntityUtils.toString(response.getEntity(), "UTF-8");}} catch (Exception e) {e.printStackTrace();} finally {try {if (response != null) {response.close();}httpclient.close();} catch (IOException e) {e.printStackTrace();}}return resultString;}public static String doGet(String url) {return doGet(url, null);}public static String doPost(String url, Map<String, String> param) {// 创建Httpclient对象CloseableHttpClient httpClient = HttpClients.createDefault();CloseableHttpResponse response = null;String resultString = "";try {// 创建Http Post请求HttpPost httpPost = new HttpPost(url);// 创建参数列表if (param != null) {List<NameValuePair> paramList = new ArrayList<>();for (String key : param.keySet()) {paramList.add(new BasicNameValuePair(key, param.get(key)));}// 模拟表单UrlEncodedFormEntity entity = new UrlEncodedFormEntity(paramList);httpPost.setEntity(entity);}// 执行http请求response = httpClient.execute(httpPost);resultString = EntityUtils.toString(response.getEntity(), "utf-8");} catch (Exception e) {e.printStackTrace();} finally {try {response.close();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}return resultString;}public static String doPost(String url) {return doPost(url, null);}public static String doPostJson(String url, String json) {// 创建Httpclient对象CloseableHttpClient httpClient = HttpClients.createDefault();CloseableHttpResponse response = null;String resultString = "";try {// 创建Http Post请求HttpPost httpPost = new HttpPost(url);// 创建请求内容StringEntity entity = new StringEntity(json, ContentType.APPLICATION_JSON);httpPost.setEntity(entity);// 执行http请求response = httpClient.execute(httpPost);resultString = EntityUtils.toString(response.getEntity(), "utf-8");} catch (Exception e) {e.printStackTrace();} finally {try {response.close();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}return resultString;}public static String send(String url, Map<String,String> map,String encoding) throws ClientProtocolException, IOException { String body = ""; //创建httpclient对象 CloseableHttpClient client = HttpClients.createDefault(); //创建post方式请求对象 HttpPost httpPost = new HttpPost(url); //装填参数 List<NameValuePair> nvps = new ArrayList<NameValuePair>(); if(map!=null){ for (Entry<String, String> entry : map.entrySet()) { nvps.add(new BasicNameValuePair(entry.getKey(), entry.getValue())); } } //设置参数到请求对象中 httpPost.setEntity(new UrlEncodedFormEntity(nvps, encoding)); System.out.println("请求地址："+url); System.out.println("请求参数："+nvps.toString()); //设置header信息 //指定报文头【Content-type】、【User-Agent】 httpPost.setHeader("Content-type", "application/x-www-form-urlencoded"); httpPost.setHeader("User-Agent", "Mozilla/4.0 (compatible; MSIE 5.0; Windows NT; DigExt)"); //执行请求操作，并拿到结果（同步阻塞） CloseableHttpResponse response = client.execute(httpPost); //获取结果实体 HttpEntity entity = response.getEntity(); if (entity != null) { //按指定编码转换结果实体为String类型 body = EntityUtils.toString(entity, encoding); } EntityUtils.consume(entity); //释放链接 response.close(); return body; } }
2.WechatGetUserInfoUtil
package com.example.wxdemo.utils;import com.alibaba.fastjson.JSON;import com.alibaba.fastjson.JSONObject;import org.bouncycastle.jce.provider.BouncyCastleProvider;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.util.Base64Utils;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;/*** @author lqx* @create -08-07 8:30*/public class WechatGetUserInfoUtil {//日志记录器private static final Logger log= LoggerFactory.getLogger(WechatGetUserInfoUtil.class);/*** 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 JSONObject getUserInfo(String encryptedData, String sessionKey, String iv) {// 被加密的数据byte[] dataByte = Base64Utils.decode(encryptedData.getBytes());// 加密秘钥byte[] keyByte = Base64Utils.decode(sessionKey.getBytes());// 偏移量byte[] ivByte = Base64Utils.decode(iv.getBytes());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 JSON.parseObject(result);}} catch (NoSuchAlgorithmException e) {log.error(e.getMessage(), e);} catch (NoSuchPaddingException e) {log.error(e.getMessage(), e);} catch (InvalidParameterSpecException e) {log.error(e.getMessage(), e);} catch (IllegalBlockSizeException e) {log.error(e.getMessage(), e);} catch (BadPaddingException e) {log.error(e.getMessage(), e);} catch (UnsupportedEncodingException e) {log.error(e.getMessage(), e);} catch (InvalidKeyException e) {log.error(e.getMessage(), e);} catch (InvalidAlgorithmParameterException e) {log.error(e.getMessage(), e);} catch (NoSuchProviderException e) {log.error(e.getMessage(), e);}return null;}}
这个可以参考
/liuqixiang/wxdemo2
