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importorg.json.JSONObject;importjava.io.BufferedReader;importjava.io.InputStreamReader;importjava.net.HttpURLConnection;importjava.net.URL;importjava.util.List;importjava.util.Map;/*** 获取token类*/
public classAuthService {/*** 获取权限token
*@return返回示例:
* {
* "access_token": "24.460da4889caad24cccdb1fea17221975.2592000.1491995545.282335-1234567",
* "expires_in": 2592000
* }*/
public staticString getAuth() {//官网获取的 API Key 更新为你注册的
String clientId = "ksnh3bAPPByrYGMD4MwTaMum";//官网获取的 Secret Key 更新为你注册的
String clientSecret = "e2LgPHXraUqzUA5N7U5OtWULq9LAZdiB ";returngetAuth(clientId, clientSecret);
}/*** 获取API访问token
* 该token有一定的有效期,需要自行管理,当失效时需重新获取.
*@paramak - 百度云官网获取的 API Key
*@paramsk - 百度云官网获取的 Securet Key
*@returnassess_token 示例:
* "24.460da4889caad24cccdb1fea17221975.2592000.1491995545.282335-1234567"*/
public staticString getAuth(String ak, String sk) {//获取token地址
String authHost = "https://aip.baidubce.com/oauth/2.0/token?";
String getAccessTokenUrl=authHost//1. grant_type为固定参数
+ "grant_type=client_credentials"
//2. 官网获取的 API Key
+ "&client_id=" +ak//3. 官网获取的 Secret Key
+ "&client_secret=" +sk;try{
URL realUrl= newURL(getAccessTokenUrl);//打开和URL之间的连接
HttpURLConnection connection =(HttpURLConnection) realUrl.openConnection();
connection.setRequestMethod("GET");
connection.connect();//获取所有响应头字段
Map> map =connection.getHeaderFields();//遍历所有的响应头字段
for(String key : map.keySet()) {
System.err.println(key+ "--->" +map.get(key));
}//定义 BufferedReader输入流来读取URL的响应
BufferedReader in = new BufferedReader(newInputStreamReader(connection.getInputStream()));
String result= "";
String line;while ((line = in.readLine()) != null) {
result+=line;
}/*** 返回结果示例*/System.err.println("result:" +result);
JSONObject jsonObject= newJSONObject(result);
String access_token= jsonObject.getString("access_token");returnaccess_token;
}catch(Exception e) {
System.err.printf("获取token失败!");
e.printStackTrace(System.err);
}return null;
}
}
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