在Spring Boot项目中配置Jackson和FastJSON时区的方法

import com.fasterxml.jackson.databind.DeserializationFeature; import com.fasterxml.jackson.databind.ObjectMapper; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.http.converter.HttpMessageConverter; import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter; import org.springframework.web.servlet.config.annotation.CorsRegistry; import org.springframework.web.servlet.config.annotation.WebMvcConfigurer; import java.text.SimpleDateFormat; import java.util.List; import java.util.TimeZone; @Configuration public class CorsConfig2 implements WebMvcConfigurer { private static final String YYYY_MM_DD_HH_MM_SS = "yyyy-MM-dd HH:mm:ss"; @Override public void addCorsMappings(CorsRegistry registry) { registry.addMapping("/**") .allowedMethods("*") .allowedOrigins("*") .allowedHeaders("*"); } // 设置时区 (TimeZone是jdk自带的时区类，这种方式可以用来设置fastjson、jackson的默认时区) // @PostConstruct // public void setTimeZone(){ // TimeZone timeZone = TimeZone.getTimeZone("UTC"); // TimeZone.setDefault(timeZone); // } // 设置时区 jackson 设置时区 系统统中就可以设置默认的序列化后格式 如想要返回 yyyy-MM-dd 只需要在 // jsonformat 注解上加 yyyy-MM-dd // spring.jackson.time-zone=GMT+8 @Bean public MappingJackson2HttpMessageConverter jackson2HttpMessageConverter() { MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter(); ObjectMapper mapper = new ObjectMapper(); mapper.setTimeZone(TimeZone.getDefault()); mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false); mapper.setDateFormat(new SimpleDateFormat(YYYY_MM_DD_HH_MM_SS)); converter.setObjectMapper(mapper); return converter; } @Override public void configureMessageConverters(List<HttpMessageConverter<?>> converters) { converters.add(jackson2HttpMessageConverter()); } // fastjson 设置不了时区 // @Bean // public HttpMessageConverters fastJsonConverters() { // FastJsonHttpMessageConverter fastJsonConverter = new FastJsonHttpMessageConverter(); // FastJsonConfig fastJsonConfig = new FastJsonConfig(); // fastJsonConfig.setSerializerFeatures(SerializerFeature.PrettyFormat); // fastJsonConverter.setFastJsonConfig(fastJsonConfig); // HttpMessageConverter<?> httpMessageConverter = fastJsonConverter; // return new HttpMessageConverters(httpMessageConverter); // } // // @Override // public void configureMessageConverters(List<HttpMessageConverter<?>> converters) { // FastJsonHttpMessageConverter fastJsonConverter = new FastJsonHttpMessageConverter(); // FastJsonConfig fastJsonConfig = new FastJsonConfig(); // fastJsonConfig.setSerializerFeatures(SerializerFeature.PrettyFormat); // fastJsonConverter.setFastJsonConfig(fastJsonConfig); // //converters.add(fastJsonConverter);//这会让fastJsonConverter排在消息转换器管道列表的最后，可能会轮不到它处理消息转换 // converters.add(0, fastJsonConverter);//要显示指明将fastJsonConverter排在消息转换器管道列表的首位 // } }