java 根据图片url识别图片简单实例(百度云通用文字识别)

1.百度云通用文字识别,首先注册百度云账号，创建应用

2.创建完应用后能够查看自己的

OK，可以用我写的代码识别图片了

package com.teamdev.jxbrowser.chromium.demo.京东.根据店铺名称搜索商品数据;

import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.security.SecureRandom;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.X509TrustManager;

import org.json.JSONObject;

public class getBaiduText {
   private static String api_key="自己的api_key";
   private static String secret_key="自己的secret_key";

   //根据图片url识别图片内容
   public static void main(String[] args) {
       String result =getImgText("http://img10.360buyimg.com/imgzone/jfs/t30406/61/230206156/171776/e1bf7570/5bebe2c1N84073dff.jpg");
       System.out.println(result);
   }

   //根据图片url识别图片内容
   public static String getImgText(String imgUrl){
           //获取百度云AccessToken
           String accessToken= getAccessToken(api_key,secret_key);

           //拼接请求
       String requestUrl = "https://aip.baidubce.com/rest/2.0/ocr/v1/general_basic";
   String contentType = "application/x-www-form-urlencoded";
   String urls = requestUrl + "?access_token=" + accessToken;
   System.out.println(urls);
   trustEveryone();
   try {
   URL url = new URL(urls);
               HttpURLConnection con = (HttpURLConnection)url.openConnection();
               con.setRequestMethod("POST");
   con.setDoOutput(true);
   con.setDoInput(true);
               con.setUseCaches(false);
   // 默认是 GET方式
               con.setRequestProperty("Content-Type", contentType);
               con.setRequestProperty("Connection", "Keep-Alive");
               con.setRequestProperty("User-Agent","Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36");
   OutputStreamWriter out = new OutputStreamWriter(con
   .getOutputStream(),"utf-8");
   String parm ="url="+imgUrl;
   out.write(new String(parm.getBytes("utf-8")));
   out.flush();
   out.close();
               BufferedInputStream bis = new BufferedInputStream(con.getInputStream());
               ByteArrayOutputStream bos = new ByteArrayOutputStream();
               int len;
               byte[] arr = new byte[1024];
               while((len=bis.read(arr))!= -1){
                   bos.write(arr,0,len);
                   bos.flush();
               }
               bos.close();
   return bos.toString("utf-8");
   } catch (MalformedURLException e) {
       e.printStackTrace();
   } catch (IOException e) {
       e.printStackTrace();
   }
           return null;
   }
   //获取AccessToken
   public static String getAccessToken(String api_key, String secret_key ){
       String url ="https://aip.baidubce.com/oauth/2.0/token" +
               "?grant_type=client_credentials" +
               "&client_id="+api_key+"&client_secret="+secret_key+"&";
       String result = sendPost(url);
       JSONObject jsonObject = new JSONObject(result);
String access_token = jsonObject.getString("access_token");
return access_token;
   }

   //ssl协议
   public static void trustEveryone() {
       try {
           HttpsURLConnection
                   .setDefaultHostnameVerifier(new HostnameVerifier() {
                       public boolean verify(String hostname,
                               SSLSession session) {
                           return true;
                       }
                   });
           SSLContext context = SSLContext.getInstance("TLS");
           context.init(null, new X509TrustManager[] { new X509TrustManager() {
               public void checkClientTrusted(X509Certificate[] chain,
                       String authType) throws CertificateException {
               }

               public void checkServerTrusted(X509Certificate[] chain,
                       String authType) throws CertificateException {
               }

               public X509Certificate[] getAcceptedIssuers() {
                   return new X509Certificate[0];
               }
           } }, new SecureRandom());
           HttpsURLConnection.setDefaultSSLSocketFactory(context
                   .getSocketFactory());
       } catch (Exception e) {

       }
   }

   /**
   * 发送post请求
   * */
   public static String sendPost(String urlStr) {
          trustEveryone();
   try {
   URL url = new URL(urlStr);
               HttpURLConnection con = (HttpURLConnection)url.openConnection();
               con.setRequestMethod("POST");
   con.setDoOutput(true);
   con.setDoInput(true);
               con.setUseCaches(false);
   // 默认是 GET方式
//               con.setRequestProperty("charset", "utf-8");
               con.setRequestProperty("User-Agent","Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36");
   OutputStreamWriter out = new OutputStreamWriter(con
   .getOutputStream(),"utf-8");
   String parm ="";
   out.write(new String(parm.getBytes("utf-8")));
   out.flush();
   out.close();
               BufferedInputStream bis = new BufferedInputStream(con.getInputStream());
               ByteArrayOutputStream bos = new ByteArrayOutputStream();
               int len;
               byte[] arr = new byte[1024];
               while((len=bis.read(arr))!= -1){
                   bos.write(arr,0,len);
                   bos.flush();
               }
               bos.close();
   return bos.toString("utf-8");
   } catch (MalformedURLException e) {
       e.printStackTrace();
   } catch (IOException e) {
       e.printStackTrace();
   }
           return null;
   }

}

java 根据图片url识别图片简单实例(百度云通用文字识别)

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