package cn.juhe;
import java.io.*;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.nio.charset.StandardCharsets;
import java.util.HashMap;
import java.util.Map;
import sun.misc.BASE64Encoder;
public class Txxck {
// 天气情况查询接口地址
public static String API_URL = "http://apis.juhe.cn/txxck/query";
// 接口请求Key
public static String API_KEY = "********";
public static void main(String[] args) {
String image = GetImageStr("1.png");
QueryTxxck(image);
}
/**
* 请求通信行程卡OCR接口
*
* @param image 图像内容
*/
public static void QueryTxxck(String image) {
Map<String, Object> params = new HashMap<>();//组合参数
params.put("image", image);
params.put("key", API_KEY);
String queryParams = urlencode(params);
String response = doPost(API_URL, queryParams);
try {
System.out.println(response);
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* get方式的http请求
*
* @param httpUrl 请求地址
* @return 返回结果
*/
public static String doPost(String httpUrl, String queryParams) {
HttpURLConnection connection = null;
InputStream inputStream = null;
BufferedReader bufferedReader = null;
String result = null;// 返回结果字符串
try {
// 创建远程url连接对象
// URL url = new URL(new StringBuffer(httpUrl).append("?").append(queryParams).toString());
URL url = new URL(httpUrl);
// 通过远程url连接对象打开一个连接,强转成httpURLConnection类
connection = (HttpURLConnection) url.openConnection();
// 设置连接方式:get
connection.setRequestMethod("POST");
// 设置连接主机服务器的超时时间:15000毫秒
connection.setConnectTimeout(5000);
// 设置读取远程返回的数据时间:60000毫秒
connection.setReadTimeout(6000);
connection.setDoOutput(true);
connection.setDoInput(true);
// 发送请求
connection.connect();
BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(connection.getOutputStream(), "UTF-8"));
writer.write(queryParams);
writer.close();
// 通过connection连接,获取输入流
if (connection.getResponseCode() == 200) {
inputStream = connection.getInputStream();
// 封装输入流,并指定字符集
bufferedReader = new BufferedReader(new InputStreamReader(inputStream, StandardCharsets.UTF_8));
// 存放数据
StringBuilder sbf = new StringBuilder();
String temp;
while ((temp = bufferedReader.readLine()) != null) {
sbf.append(temp);
sbf.append(System.getProperty("line.separator"));
}
result = sbf.toString();
}
} catch (IOException e) {
e.printStackTrace();
} finally {
// 关闭资源
if (null != bufferedReader) {
try {
bufferedReader.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (null != inputStream) {
try {
inputStream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (connection != null) {
connection.disconnect();// 关闭远程连接
}
}
return result;
}
/**
* 将map型转为请求参数型
*
* @param data
* @return
*/
public static String urlencode(Map<String, ?> data) {
StringBuilder sb = new StringBuilder();
for (Map.Entry<String, ?> i : data.entrySet()) {
try {
sb.append(i.getKey()).append("=").append(URLEncoder.encode(i.getValue() + "", "UTF-8")).append("&");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
}
String result = sb.toString();
result = result.substring(0, result.lastIndexOf("&"));
return result;
}
/**
* 获取图片内容
* @param imgFile
* @return
*/
public static String GetImageStr(String imgFile)
{//将图片文件转化为字节数组字符串,并对其进行Base64编码处理
InputStream in = null;
byte[] data = null;
//读取图片字节数组
try
{
in = new FileInputStream(imgFile);
data = new byte[in.available()];
in.read(data);
in.close();
}
catch (IOException e)
{
e.printStackTrace();
}
//对字节数组Base64编码
BASE64Encoder encoder = new BASE64Encoder();
return encoder.encode(data);//返回Base64编码过的字节数组字符串
}
}
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