package com.javaweb.third.baidu.api;
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import com.alibaba.fastjson.JSONObject;
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import com.javaweb.common.utils.StringUtils;
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import com.javaweb.ehcache.util.EhCacheUtils;
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import com.javaweb.third.config.ThirdConfig;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.io.BufferedReader;
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import java.io.InputStreamReader;
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import java.net.HttpURLConnection;
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import java.net.URL;
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import java.util.List;
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import java.util.Map;
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/**
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* 获取百度AI AccessToken
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*/
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public class AuthService {
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protected Logger logger = LoggerFactory.getLogger(getClass());
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public static String KEY_AccessToken="BaiduAi.AccessToken";
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/**
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* 获得条用借口凭证 access_token
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*/
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public static String getAccessToken(){
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//{"error_msg":"Access token expired","error_code":111}
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String access_token=(String) EhCacheUtils.getSysInfo(KEY_AccessToken);
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if(StringUtils.isEmpty(access_token)){
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String AK= ThirdConfig.getBaiduAiAk();
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String SK= ThirdConfig.getBaiduAiSk();
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access_token=AuthService.getAuth(AK,SK);
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EhCacheUtils.putSysInfo(KEY_AccessToken,access_token);
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}
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return access_token;
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}
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/**
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* 刷新AccessToken
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*/
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public void refreshAccessToken(){
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String AK= ThirdConfig.getBaiduAiAk();
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String SK= ThirdConfig.getBaiduAiSk();
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String access_token=AuthService.getAuth(AK,SK);
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logger.info("refreshAccessToken=>"+access_token);
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if(StringUtils.isNotEmpty(access_token)){
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EhCacheUtils.putSysInfo(KEY_AccessToken,access_token);
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logger.info("refreshAccessToken=>"+access_token);
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}
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}
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/**
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* 获取权限token
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* @return 返回示例：
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* {
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* "access_token": "24.460da4889caad24cccdb1fea17221975.2592000.1491995545.282335-1234567",
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* "expires_in": 2592000
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* }
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*/
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//public static String getAuth() {
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// 官网获取的 API Key 更新为你注册的
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//String clientId = "百度云应用的AK";
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// 官网获取的 Secret Key 更新为你注册的
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//String clientSecret = "百度云应用的SK";
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//return getAuth(clientId, clientSecret);
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//this.ak
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// return getAuth(ak,sk);
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// }
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/**
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* 获取API访问token
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* 该token有一定的有效期，需要自行管理，当失效时需重新获取.
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* @param ak - 百度云官网获取的 API Key
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* @param sk - 百度云官网获取的 Securet Key
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* @return assess_token 示例：
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* "24.460da4889caad24cccdb1fea17221975.2592000.1491995545.282335-1234567"
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*/
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private static String getAuth(String ak, String sk) {
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// 获取token地址
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String authHost = "https://aip.baidubce.com/oauth/2.0/token?";
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String getAccessTokenUrl = authHost
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// 1. grant_type为固定参数
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+ "grant_type=client_credentials"
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// 2. 官网获取的 API Key
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+ "&client_id=" + ak
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// 3. 官网获取的 Secret Key
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+ "&client_secret=" + sk;
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try {
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URL realUrl = new URL(getAccessTokenUrl);
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// 打开和URL之间的连接
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HttpURLConnection connection = (HttpURLConnection) realUrl.openConnection();
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connection.setRequestMethod("GET");
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connection.connect();
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// 获取所有响应头字段
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Map<String, List<String>> map = connection.getHeaderFields();
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// 遍历所有的响应头字段
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/*for (String key : map.keySet()) {
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System.err.println(key + "--->" + map.get(key));
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}*/
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// 定义 BufferedReader输入流来读取URL的响应
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BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
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String result = "";
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String line;
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while ((line = in.readLine()) != null) {
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result += line;
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}
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//System.err.println("result:" + result);
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JSONObject jsonObject=JSONObject.parseObject(result);
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String access_token = jsonObject.getString("access_token");
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return access_token;
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} catch (Exception e) {
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System.err.printf("获取token失败！");
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e.printStackTrace(System.err);
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}
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return null;
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}
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public static void main(String[] args){
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//String res=getAuth("ID5y3zROMLcwXGz9c6b7CN5X","9uYkONYPw3om45rGzDbCRaHRzjyQuFGf");
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String res=getAuth("4rVbZSnDypW2QfwKIuxdXPPf","K8z8mrpUoyUCDHscfIgQSOz6KzL79Gzc");
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System.out.println(res);
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}
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}
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