本文是service调用shibie方法 controller略
public class ImagesService {
public static String getResult() {
String otherHost = "https://aip.baidubce.com/rest/2.0/ocr/v1/vin_code";
// 本地图片路径
String str="C:\\Users\\gudiankj-yay\\Desktop\\news\\timg.jpg";
String filePath = "str";
try {
byte[] imgData = FileUtil.readFileByBytes(filePath);
String imgStr = Base64Util.encode(imgData);
String params = URLEncoder.encode("image", "UTF-8") + "=" + URLEncoder.encode(imgStr, "UTF-8");
/**
* access_token有过期时间, 客户端可自行缓存,过期后重新获取。
*/
String accessToken = getAuth("ak", "sk");
String result = HttpUtil.post(otherHost, accessToken, params);
return result;
//System.out.println(result);
} catch (Exception e) {
e.printStackTrace();
return "error";
}
}
public static String 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 = new URL(getAccessTokenUrl);
// 打开和URL之间的连接
HttpURLConnection connection = (HttpURLConnection) realUrl.openConnection();
connection.setRequestMethod("POST");
connection.connect();
// 获取所有响应头字段
Map<String, List<String>> 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(new InputStreamReader(connection.getInputStream()));
String result = "";
String line;
while ((line = in.readLine()) != null) {
result += line;
}
/**
* 返回结果示例
*/
System.out.println("result:" + result);
JSONObject jsonObject = new JSONObject(result);
String access_token = jsonObject.getString("access_token");
return access_token;
} catch (Exception e) {
System.err.printf("获取token失败!");
e.printStackTrace(System.err);
}
return null;
}
public String shibie(String filePath){
String otherHost = "https://aip.baidubce.com/rest/2.0/ocr/v1/vin_code";
// 本地图片路径
filePath = "本地图片路径";
try {
byte[] imgData = FileUtil.readFileByBytes(filePath);
String imgStr = Base64Util.encode(imgData);
String params = URLEncoder.encode("image", "UTF-8") + "=" + URLEncoder.encode(imgStr, "UTF-8");
/*
线上环境access_token有过期时间, 客户端可自行缓存,过期后重新获取。
*/
String accessToken = getAuth("ak", "sk");
String result = HttpUtil.post(otherHost, accessToken, params);
System.out.println(result);
return result;
} catch (Exception e) {
e.printStackTrace();
return "error";
}
}
}
工具类附下文