springboot关于日期格式问题

在我们的项目中有时候需要的日期格式并不是下面这样的,那我们怎么解决呢?

局部解决

在实体类日期类型字段上加上注解,前提是导入fastjson包,这里就不多说了。

@JsonFormat(timezone = "GMT+8", pattern = "yyyy-MM-dd HH:mm:ss")

效果

全局配置

也就是在跨域的WebMvcConfigurer接口实现配置类里面,重写一个configureMessageConverters方法，

完整代码

package com.mrs.config;

import com.alibaba.fastjson.serializer.SerializeConfig;
import com.alibaba.fastjson.serializer.SerializerFeature;
import com.alibaba.fastjson.serializer.ToStringSerializer;
import com.alibaba.fastjson.support.config.FastJsonConfig;
import com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

import java.util.List;

/**
 * description: WebConfig
 * date: 2022/8/6 9:09
 * author: MR.孙
 */
@Configuration
public class WebConfig implements WebMvcConfigurer {
    @Override
    public void addCorsMappings(CorsRegistry registry) {
        //设置允许跨域的路径
        registry.addMapping("/**")
                //设置允许跨域的请求的域名
                .allowedOriginPatterns("*")
                //是否允许cookie
                .allowCredentials(true)
                //设置允许请求的方式
                .allowedMethods("GET","POST","PUT","DELETE")
                //允许设置header属性
                .allowedHeaders("*")
                //跨域允许时间
                .maxAge(3600);

    }

    @Bean//使用@Bean注入fastJsonHttpMessageConvert
    public HttpMessageConverter fastJsonHttpMessageConverters() {
        //1.需要定义一个Convert转换消息的对象
        FastJsonHttpMessageConverter fastConverter = new FastJsonHttpMessageConverter();
        FastJsonConfig fastJsonConfig = new FastJsonConfig();
        fastJsonConfig.setSerializerFeatures(SerializerFeature.PrettyFormat);
        fastJsonConfig.setDateFormat("yyyy-MM-dd HH:mm:ss");

        SerializeConfig.globalInstance.put(Long.class, ToStringSerializer.instance);

        fastJsonConfig.setSerializeConfig(SerializeConfig.globalInstance);
        fastConverter.setFastJsonConfig(fastJsonConfig);
        HttpMessageConverter<?> converter = fastConverter;
        return converter;
    }

    @Override
    public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
        converters.add(fastJsonHttpMessageConverters());
    }
}

---

运行效果