產品定制网站开发,做一个商品网站多少钱,在微信怎样搞做微视频网站,淘宝客建站教程一、序列化问题 没有过多的性能需求#xff0c;建议使用spring内置的jackjson#xff0c;安全上更有保障 #xff08;1#xff09;返回数据
返回空字段 /*** 处理空字段* param builder* return*/Beanpublic ObjectMapper jacksonObjectMapper(Jackson2ObjectMapperBuilde…一、序列化问题 没有过多的性能需求建议使用spring内置的jackjson安全上更有保障 1返回数据
返回空字段 /*** 处理空字段* param builder* return*/Beanpublic ObjectMapper jacksonObjectMapper(Jackson2ObjectMapperBuilder builder) {// 实例化objectMapperObjectMapper objectMapper builder.createXmlMapper(false).build();objectMapper.setSerializationInclusion(JsonInclude.Include.ALWAYS);return objectMapper;}处理js序列化数字串精度丢失问题 Bean(jackson2ObjectMapperBuilderCustomizer)public Jackson2ObjectMapperBuilderCustomizer jackson2ObjectMapperBuilderCustomizer() {Jackson2ObjectMapperBuilderCustomizer customizer jacksonObjectMapperBuilder - jacksonObjectMapperBuilder.serializerByType(Long.class, ToStringSerializer.instance).serializerByType(Long.TYPE, ToStringSerializer.instance);return customizer;}二、javax.validation.Valid 无法校验对象集合
编写增强工具类
import javax.validation.ConstraintViolation;
import javax.validation.Validation;
import javax.validation.Validator;
import javax.validation.ValidatorFactory;
import java.util.List;
import java.util.Set;/*** author yilv* version 1.0* description: 实体校验增强* date 2022/11/16 15:21*/
public class ValidateUtil {private static final Validator validator;static {ValidatorFactory vf Validation.buildDefaultValidatorFactory();validator vf.getValidator();}/*** 反射校验内层元素** param list*/public static T void innerValidate(ListT list) {list.forEach(M - {SetConstraintViolationT validate validator.validate(M);if (validate.size() 0) {throw new RuntimeException(validate.iterator().next().getMessage());}});}/*** 反射校验内层元素** param object*/public static T void innerValidate(T object) {SetConstraintViolationT validate validator.validate(object);if (validate.size() 0) {throw new RuntimeException(validate.iterator().next().getMessage());}}
}
三、com.baomidou.mybatisplus.extension.service.IService#updateById 设置字段为null失效
mp的updateById 操作默认会过滤null值你可以设置忽略该更新策略 TableField(value xxx,updateStrategy FieldStrategy.IGNORED)
