详解SpringBoot时间参数处理完整解决方案

/**
 * 日期转换类
 * 将标准日期、标准日期时间、时间戳转换成Date类型
 */
/*@Deprecated*/
public class DateConverter implements Converter {

 private Logger logger = LoggerFactory.getLogger(DateConverter.class);

 private static final String dateFormat = "yyyy-MM-dd HH:mm:ss";
 private static final String shortDateFormat = "yyyy-MM-dd";
 private static final String timeStampFormat = "^\\d+$";

 @Override
 public Date convert(String value) {
  logger.info("转换日期：" + value);

  if(value == null || value.trim().equals("") || value.equalsIgnoreCase("null")) {
   return null;
  }

  value = value.trim();

  try {
   if (value.contains("-")) {
    SimpleDateFormat formatter;
    if (value.contains(":")) {
     formatter = new SimpleDateFormat(dateFormat);
    } else {
     formatter = new SimpleDateFormat(shortDateFormat);
    }
    return formatter.parse(value);
   } else if (value.matches(timeStampFormat)) {
    Long lDate = new Long(value);
    return new Date(lDate);
   }
  } catch (Exception e) {
   throw new RuntimeException(String.format("parser %s to Date fail", value));
  }
  throw new RuntimeException(String.format("parser %s to Date fail", value));
 }
}

import com.aegis.yqmanagecenter.config.date.DateConverter;
import com.aegis.yqmanagecenter.model.bean.common.JsonResult;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.propertyeditors.CustomDateEditor;
import org.springframework.core.convert.support.GenericConversionService;
import org.springframework.http.HttpStatus;
import org.springframework.web.bind.WebDataBinder;
import org.springframework.web.bind.annotation.*;

import java.beans.PropertyEditorSupport;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;

@ControllerAdvice
public class ControllerHandler {

 private Logger logger = LoggerFactory.getLogger(ControllerHandler.class);

 @InitBinder
 public void initBinder(WebDataBinder binder) {
  // 方法1，注册converter
  GenericConversionService genericConversionService = (GenericConversionService) binder.getConversionService();
  if (genericConversionService != null) {
   genericConversionService.addConverter(new DateConverter());
  }

  // 方法2，定义单格式的日期转换，可以通过替换格式，定义多个dateEditor，代码不够简洁
  DateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
  CustomDateEditor dateEditor = new CustomDateEditor(df, true);
  binder.registerCustomEditor(Date.class, dateEditor);


  // 方法3，同样注册converter
  binder.registerCustomEditor(Date.class, new PropertyEditorSupport() {
   @Override
   public void setAsText(String text) throws IllegalArgumentException {
    setValue(new DateConverter().convert(text));
   }
  });

 }
}

/**
 * 日期转换配置
 * 解决@RequestAttribute、@RequestParam和@RequestBody三种类型的时间类型参数接收与转换问题
 */
@Configuration
public class DateConfig {

 /**
  * 默认日期时间格式
  */
 public static final String DEFAULT_DATE_TIME_FORMAT = "yyyy-MM-dd HH:mm:ss";

 /**
  * Date转换器，用于转换RequestParam和PathVariable参数
  */
 @Bean
 public Converter dateConverter() {
  return new DateConverter();
 }

 /**
  * Json序列化和反序列化转换器，用于转换Post请求体中的json以及将我们的对象序列化为返回响应的json
  * 使用@RequestBody注解的对象中的Date类型将从这里被转换
  */
 @Bean
 public ObjectMapper objectMapper(){
  ObjectMapper objectMapper = new ObjectMapper();
  objectMapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
  objectMapper.disable(DeserializationFeature.ADJUST_DATES_TO_CONTEXT_TIME_ZONE);

  JavaTimeModule javaTimeModule = new JavaTimeModule();

  //Date序列化和反序列化
  javaTimeModule.addSerializer(Date.class, new JsonSerializer() {
   @Override
   public void serialize(Date date, JsonGenerator jsonGenerator, SerializerProvider serializerProvider) throws IOException {
    SimpleDateFormat formatter = new SimpleDateFormat(DEFAULT_DATE_TIME_FORMAT);
    String formattedDate = formatter.format(date);
    jsonGenerator.writeString(formattedDate);
   }
  });
  javaTimeModule.addDeserializer(Date.class, new JsonDeserializer() {
   @Override
   public Date deserialize(JsonParser jsonParser, DeserializationContext deserializationContext) throws IOException, JsonProcessingException {
    return new DateConverter().convert(jsonParser.getText());
   }
  });

  objectMapper.registerModule(javaTimeModule);
  return objectMapper;
 }

}