content: package com.alibaba.fastjson2.issues_1500;
  
  import com.alibaba.fastjson2.JSON;
  import com.alibaba.fastjson2.JSONWriter;
  import com.alibaba.fastjson2.annotation.JSONField;
  import com.alibaba.fastjson2.writer.ObjectWriter;
  import com.alibaba.fastjson2.writer.ObjectWriterCreator;
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  public class Issue1599 {
      @Test
      public void test() {
          Bean bean = new Bean();
          bean.backgroundColor = 0xFEF0FE;
          bean.borderColor = 0xEE00CC;
  
          String str = JSON.toJSONString(bean);
          assertEquals("{\"background-color\":\"#00FEF0FE\",\"border-color\":\"#00EE00CC\"}", str);
      }
  
      public class Bean {
          @JSONField(name = "background-color", format = "#%08X")
          public int backgroundColor;
          @JSONField(name = "border-color", format = "#%08X")
          public int borderColor;
      }
  
      @Test
      public void test1() {
          Bean bean = new Bean();
          bean.backgroundColor = 0xFEF0FE;
          bean.borderColor = 0xEE00CC;
  
          ObjectWriter objectWriter = ObjectWriterCreator.INSTANCE.createObjectWriter(Bean.class);
  
          JSONWriter jsonWriter = JSONWriter.of();
          objectWriter.write(jsonWriter, bean);
          String str = jsonWriter.toString();
          assertEquals("{\"background-color\":\"#00FEF0FE\",\"border-color\":\"#00EE00CC\"}", str);
      }
  }
  