1.处理过程

1.1 实体类设为autoResultMap = true

@TableName(value = "table1", autoResultMap = true)

1.2 字段 typeHandler = JacksonTypeHandler.class

 @ApiModelProperty(value = "明细")@TableField(value = "detail", typeHandler = JacksonTypeHandler.class)private Object detail;

2.Json字段类型处理器

@Slf4j
@MappedTypes({Object.class})
@MappedJdbcTypes(JdbcType.VARCHAR)
public class JacksonTypeHandler extends AbstractJsonTypeHandler<Object> {private static ObjectMapper OBJECT_MAPPER;private final Class<?> type;private static final DateTimeFormatter DATE_TIME_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");private static final DateTimeFormatter DATE_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd");private static final DateTimeFormatter TIME_FORMATTER = DateTimeFormatter.ofPattern("HH:mm:ss");public JacksonTypeHandler(Class<?> type) {if (log.isTraceEnabled()) {log.trace("JacksonTypeHandler(" + type + ")");}Assert.notNull(type, "Type argument cannot be null");this.type = type;}@Overrideprotected Object parse(String json) {try {return getObjectMapper().readValue(json, type);} catch (IOException e) {throw new RuntimeException(e);}}@Overrideprotected String toJson(Object obj) {try {return getObjectMapper().writeValueAsString(obj);} catch (JsonProcessingException e) {throw new RuntimeException(e);}}public static ObjectMapper getObjectMapper() {if (null == OBJECT_MAPPER) {OBJECT_MAPPER = new ObjectMapper();//取消时间的转化格式，默认是时间戳,同时需要设置要表现的时间格式OBJECT_MAPPER.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false);OBJECT_MAPPER.configure(SerializationFeature.WRITE_DURATIONS_AS_TIMESTAMPS, false);OBJECT_MAPPER.setDateFormat(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"));// 默认序列化没有实现，反序列化有实现JavaTimeModule javaTimeModule = new JavaTimeModule();javaTimeModule.addSerializer(LocalDateTime.class, new LocalDateTimeSerializer(DATE_TIME_FORMATTER));javaTimeModule.addSerializer(LocalDate.class, new LocalDateSerializer(DATE_FORMATTER));javaTimeModule.addSerializer(LocalTime.class, new LocalTimeSerializer(TIME_FORMATTER));javaTimeModule.addSerializer(Date.class, new DateSerializer(false, new SimpleDateFormat("yyyy-MM-dd HH:mm:ss")));javaTimeModule.addDeserializer(LocalDateTime.class, new LocalDateTimeDeserializer(DATE_TIME_FORMATTER));javaTimeModule.addDeserializer(LocalDate.class, new LocalDateDeserializer(DATE_TIME_FORMATTER));javaTimeModule.addDeserializer(LocalTime.class, new LocalTimeDeserializer(DATE_TIME_FORMATTER));javaTimeModule.addDeserializer(Date.class, new DateDeserializers.DateDeserializer(new DateDeserializers.DateDeserializer(), new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"), "yyyy-MM-dd HH:mm:ss"));OBJECT_MAPPER.registerModule(javaTimeModule);// 设置时区OBJECT_MAPPER.setTimeZone(TimeZone.getDefault());// 设置格式化输出//  OBJECT_MAPPER.enable(SerializationFeature.INDENT_OUTPUT);// 属性为空为null都不参与序列化OBJECT_MAPPER.setSerializationInclusion(JsonInclude.Include.NON_EMPTY);}return OBJECT_MAPPER;}public static void setObjectMapper(ObjectMapper objectMapper) {Assert.notNull(objectMapper, "ObjectMapper should not be null");JacksonTypeHandler.OBJECT_MAPPER = objectMapper;}
}