由於springfox-swagger2的實現的問題，程式只能配置為按照英文字母排序。不過我們可以通過編寫外掛實現欄位按類變數定義順序排序。具體外掛程式碼為

import static springfox.documentation.schema.Annotations.findPropertyAnnotation;
import static springfox.documentation.swagger.schema.ApiModelProperties.findApiModePropertyAnnotation;
import java.lang.reflect.Field;
import
 
 org.apache.commons.lang3.ArrayUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.stereotype.Component;
import com.fasterxml.jackson.databind.introspect.AnnotatedField;
import com.fasterxml.jackson.databind.introspect.BeanPropertyDefinition;
 
import com.google.common.base.Optional;
import io.swagger.annotations.ApiModelProperty;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spi.schema.ModelPropertyBuilderPlugin;
import springfox.documentation.spi.schema.contexts.ModelPropertyContext;
import springfox.documentation.swagger.common.SwaggerPluginSupport;

@Component
 
public class CustomApiModelPropertyPositionBuilder implements ModelPropertyBuilderPlugin {

  private Log log = LogFactory.getLog(getClass());

  @Override
  public boolean supports(DocumentationType delimiter) {
    return SwaggerPluginSupport.pluginDoesApply(delimiter);
  }

  @Override
  public void apply(ModelPropertyContext context) {
    Optional<BeanPropertyDefinition> beanPropertyDefinitionOpt = context.getBeanPropertyDefinition();
    Optional<ApiModelProperty> annotation = Optional.absent();
    if (context.getAnnotatedElement().isPresent()) {
      annotation = annotation.or(findApiModePropertyAnnotation(context.getAnnotatedElement().get()));
    }
    if (context.getBeanPropertyDefinition().isPresent()) {
      annotation = annotation.or(findPropertyAnnotation(context.getBeanPropertyDefinition().get(), ApiModelProperty.class));
    }
    if (beanPropertyDefinitionOpt.isPresent()) {
      BeanPropertyDefinition beanPropertyDefinition = beanPropertyDefinitionOpt.get();
      if (annotation.isPresent() && annotation.get().position() != 0) {
        return;
      }
      AnnotatedField field = beanPropertyDefinition.getField();
      Class<?> clazz = field.getDeclaringClass();
      Field[] declaredFields = clazz.getDeclaredFields();
      Field declaredField;
      try {
        declaredField = clazz.getDeclaredField(field.getName());
      } catch (NoSuchFieldException | SecurityException e) {
        log.error("", e);
        return;
      }
      int indexOf = ArrayUtils.indexOf(declaredFields, declaredField);
      if (indexOf != -1) {
        context.getBuilder().position(indexOf);
      }
    }
  }
}