要传输的JSON格式:

{
"orderId":"0001",
"cargoReceiptNo":"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",
"cargoReceiptLineNo":"000009_01"
}

后台代码:

@RequestMapping(value = {"/photoJson"})
@ResponseBody
public PhysicalIdCheckDto testPhotoJson(@RequestBody PhysicalIdCheckDto physicalIdCheckDto) {
String imgStr = physicalIdCheckDto.getCargoReceiptNo(); BASE64Decoder decoder = new BASE64Decoder();
try {
byte[] b = decoder.decodeBuffer(imgStr);
for (int i = 0; i < b.length; ++i) {
if (b[i] < 0) {
b[i] += 256;
}
}
OutputStream out = new FileOutputStream("E:\\img\\logo.jpg");
out.write(b);
out.flush();
out.close();
} catch (Exception e) {
e.printStackTrace();
}
System.out.println("输出JSON:"+physicalIdCheckDto);
return physicalIdCheckDto;
}

base64转图片

/**
* @Description: 将base64编码字符串转换为图片
* @Author:
* @CreateTime:
* @param imgStr base64编码字符串
* @param path 图片路径-具体到文件
* @return
*/
public static boolean generateImage(String imgStr, String path) {
  if (imgStr == null)
    return false;
  BASE64Decoder decoder = new BASE64Decoder();
  try {
    // 解密
    byte[] b = decoder.decodeBuffer(imgStr);
    // 处理数据
    for (int i = 0; i < b.length; ++i) {
      if (b[i] < 0) {
        b[i] += 256;
      }
    }
    OutputStream out = new FileOutputStream(path);
    out.write(b);
    out.flush();
    out.close();
    return true;
  } catch (Exception e) {
    return false;
  }
}

图片转base64

/**
* @Description: 根据图片地址转换为base64编码字符串
* @Author:
* @CreateTime:
* @return
*/
public static String getImageStr(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);
}

测试:

/**
* 示例
*/
public static void main(String[] args) {
String strImg = getImageStr("F:/86619-106.jpg");
System.out.println(strImg);
generateImage(strImg, "F:/86619-107.jpg");
}

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