fix json bug

hutool-json/src/test/java/Issue2365Test.java

@@ -0,0 +1,20 @@
+import cn.hutool.json.JSONUtil;
+import lombok.Data;
+import org.junit.Assert;
+import org.junit.Test;
+
+public class Issue2365Test {
+	@Test
+	public void toBeanTest(){
+		String jsonStr = "{\"fileName\":\"aaa\",\"fileBytes\":\"AQ==\"}";
+		final FileInfo fileInfo = JSONUtil.toBean(jsonStr, FileInfo.class);
+		Assert.assertEquals("aaa", fileInfo.getFileName());
+		Assert.assertArrayEquals(new byte[]{1}, fileInfo.getFileBytes());
+	}
+
+	@Data
+	public static class FileInfo {
+		private String fileName;
+		private byte[] fileBytes;
+	}
+}