[BUG] Support @JsonSetter annotation

[jorgerod]

Hi

We are testing FastJson2 in a spring-boot based application and we have a DTO with the @JsonSetter annotation and it is being ignored.

import static org.assertj.core.api.Assertions.assertThat;

import com.alibaba.fastjson2.JSON;
import com.fasterxml.jackson.annotation.JsonSetter;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.junit.jupiter.api.Test;

public class JsonSetterTest {

  @Test
  public void testJsonSetter() throws Exception {

    // given
    final String json = "{ \"department\": \"IT\" }";

    // when
    final ObjectMapper mapper = new ObjectMapper();
    final JsonSetterDTO jackson = mapper.readValue(json, JsonSetterDTO.class);

    final JsonSetterDTO fastJson2 = JSON.parseObject(json, JsonSetterDTO.class);

    // then
    assertThat(jackson.getDept()).isEqualTo(fastJson2.getDept());
  }

  static class JsonSetterDTO {

    @JsonSetter("department")
    String dept;

    public String getDept() {
      return this.dept;
    }

    public void setDept(final String dept) {
      this.dept = dept;
    }
  }
}

Result jackson

jackson = {JsonSetterTest$JsonSetterDTO@2462} 
 dept = "IT"

Result fastjson2

fastJson2 = {JsonSetterTest$JsonSetterDTO@2463} 
 dept = null

Thank you very much

[wenshao]

https://oss.sonatype.org/content/repositories/snapshots/com/alibaba/fastjson2/fastjson2/2.0.51-SNAPSHOT/

The BUG has been fixed. Please help verify it with version 2.0.51-SNAPSHOT

[jorgerod]

Fixed! Thank you very much

[wenshao]

https://github.com/alibaba/fastjson2/releases/tag/2.0.51
Please use the new version 2.0.51