小编给大家分享一下SpringBoot如何实现LocalDateTime日期转换,希望大家阅读完这篇文章之后都有所收获,下面让我们一起去探讨吧!
1.前端传入参数时String
转换为Date
。
org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Cannot
deserialize value of type `java.time.LocalDateTime` from String "2020-02-11 12:48:13": Failed to
deserialize java.time.LocalDateTime: (java.time.format.DateTimeParseException) Text '2020-02-11
12:48:13' could not be parsed at index 10; nested exception is
com.fasterxml.jackson.databind.exc.InvalidFormatException: Cannot deserialize value of type
`java.time.LocalDateTime` from String "2020-02-11 12:48:13": Failed to deserialize
java.time.LocalDateTime: (java.time.format.DateTimeParseException) Text '2020-02-11 12:48:13' could
not be parsed at index 10
at [Source: (PushbackInputStream); line: 4, column: 19] (through reference chain:
com.example.demo.model.Test["localDateTime"])
2.后台返回值时Date
转换为String
LocalDateTime中间有个“T”,其他时间类型时间格式可读性也很差。
编写一个时间配置类,使用HTTP消息转换器来格式化。
import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateTimeDeserializer;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer;
import org.springframework.boot.autoconfigure.jackson.Jackson2ObjectMapperBuilderCustomizer;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
/**
* 时间统一配置
*/
@Configuration
public class DateConfig {
@Bean
public Jackson2ObjectMapperBuilderCustomizer jsonCustomizer() {
JavaTimeModule module = new JavaTimeModule();
module.addDeserializer(LocalDateTime.class, new LocalDateTimeDeserializer(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
module.addSerializer(LocalDateTime.class, new LocalDateTimeSerializer(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
return builder -> {
builder.simpleDateFormat("yyyy-MM-dd hh:mm:ss");
builder.deserializers(new LocalDateTimeDeserializer(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
builder.serializers(new LocalDateTimeSerializer(DateTimeFormatter.ofPattern("yyyy-MM-dd hh:mm:ss")));
builder.modules(module);
};
}
}
1.第一个问题解决效果图:
2.第二个问题解决效果图:
我们可以看到使用了HTTP消息转换器来格式化后,连Date类型也格式化正常了。
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原文链接:https://my.oschina.net/piaoxianren/blog/4558977