关于“JSON parse error: Cannot deserialize value of type `` from String报错问题

这里写自定义目录标题

1.添加WebConfig配置

@Configuration
public class WebConfig {
	
	@Bean
    public MappingJackson2HttpMessageConverter getMappingJackson2HttpMessageConverter() {
    	MappingJackson2HttpMessageConverter mappingJackson2HttpMessageConverter = new MappingJackson2HttpMessageConverter();
    	//设置日期格式
    	ObjectMapper objectMapper = new ObjectMapper();
    	
    	mappingJackson2HttpMessageConverter.setObjectMapper(objectMapper);
    	//设置中文编码格式
    	List<MediaType> list = new ArrayList<MediaType>();
    	list.add(MediaType.APPLICATION_JSON_UTF8);
    	mappingJackson2HttpMessageConverter.setSupportedMediaTypes(list);
    	return mappingJackson2HttpMessageConverter;
    }
 
}

2.然后在Date类型上加上注解

    // 起飞时间
    @JSONField(format = DateUtil.DATE_TIME)
    @JsonFormat(pattern = DateUtil.DATE_TIME, timezone="GMT+8")
    private Date flightStartTime;

    // 降落时间
    @JSONField(format = DateUtil.DATE_TIME)
    @JsonFormat(pattern = DateUtil.DATE_TIME, timezone="GMT+8")
    private Date flightEndTime;

工具类

public class DateUtil {
    public static final SimpleDateFormat simpleDateForMat = new SimpleDateFormat("yyyy-MM-dd");
    public static final SimpleDateFormat simpleDateForMatTime = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
    public static final String DATE_TIME = "yyyy-MM-dd HH:mm:ss";

    // 获取当前时间
    public static String getStringToCurrentTime(){
        long time = System.currentTimeMillis();
        Date date = new Date(time);

        return simpleDateForMatTime.format(date);
    }

    // 年月日时分秒转换为String
    public static String dateTimeToString(Date date){
        return simpleDateForMatTime.format(date);
    }

    // 计算时差
    public static String dateSav(Date flightEndTime, Date flightStartTime) {
        SimpleDateFormat dateFormat = new SimpleDateFormat("HH:mm:ss");
        long timeSav = 8 * 3600 * 1000;
        long time = flightEndTime.getTime() - flightStartTime.getTime() - timeSav;
        return dateFormat.format(time);
    }

    // 将string转化为年月日
    public static Date stringToDate(String parse){
        Date date = new Date();
        try {
            date = simpleDateForMat.parse(parse);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return date;
    }

    // 将年月日时分秒转换为年月日
    public static Date dateTimeToDate(Date date){
        String format = simpleDateForMat.format(date);
        try {
            return simpleDateForMat.parse(format);
        } catch (ParseException e) {
            e.printStackTrace();
        }

        return null;
    }

    // 将string转换为年月日时分秒
    public static Date stringToDateTime(String startTime) {
        Date date = new Date();
        try {
            date = simpleDateForMatTime.parse(startTime);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return date;
    }

    // 将年月日转换为string
    public static String dateToString(Date date) {

        return simpleDateForMat.format(date);
    }

    // 将年月日转换为年月日时分秒
    public static Date dateToDateTime(Date flightStartTime) {
        try {
            return simpleDateForMatTime.parse(simpleDateForMatTime.format(flightStartTime));
        } catch (ParseException e) {
            e.printStackTrace();
        }

        return null;
    }
}