本简介介绍如何在项目中引入和使用Base64Decoder的Jar包，涵盖其基本功能、常见用法及注意事项。
```java
public class Recognize {
public static final String APPKEY = your_appkey_here; // 你的appkey值
public static final String URL = http://api.jisuapi.com/licenseplaterecognition/recognize;
public static final String pic = 11.jpg; // 图片地址
public static void Get() {
String result = null;
String url = URL + ?appkey= + APPKEY;
Map param = new HashMap<>();
try {
param.put(pic, getBase64(pic));
result = HttpUtil.sendPost(url, param, UTF-8);
JSONObject json = JSONObject.fromObject(result);
if (json.getInt(status) != 0) {
System.out.println(json.getString(msg));
} else {
JSONObject resultarr = (JSONObject) json.opt(result);
Iterator itt = resultarr.keys();
while (itt.hasNext()) {
String key = itt.next().toString();
String value = resultarr.getString(key);
System.out.println(key + : + value);
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 图片转为Base64编码格式
*
* @param imgFile
* @return
*/
public static String getBase64(String imgFile) {
InputStream inputStream = null;
byte[] data = null;
try {
inputStream = new FileInputStream(imgFile);
data = new byte[inputStream.available()];
inputStream.read(data);
inputStream.close();
} catch (IOException e) {
e.printStackTrace();
}
// 加密
BASE64Encoder encoder = new BASE64Encoder();
return encoder.encode(data);
}
}
```
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