一 點睛

LocalDate、LocalTime、LocalDateTime是Java 8開始提供的時間日期API，主要用來優化Java 8以前對於時間日期的處理操作。然而，我們在使用Spring Boot，往往會發現使用請求引數或返回結果中有LocalDate、LocalTime、LocalDateTime的時候會發生各種問題。下面說說解決方案。

二 程式碼

1 新建依賴

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <!--該模組中封裝對Java 8的時間日期API序列化的實現-->
    <dependency>
        <groupId>com.fasterxml.jackson.datatype</groupId>
        <artifactId>jackson-datatype-jsr310</artifactId>
    </dependency>

    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
        <version>1.16.20</version>
    </dependency>

</dependencies>
 

2 主類

package com.didispace;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RestController;

import java.time.LocalDate;


@SpringBootApplication
public class Application {

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }

    @RestController
    class HelloController {

        @PostMapping("/user")
        public UserDto user(@RequestBody UserDto userDto) throws Exception {
            return userDto;
        }

    }

    @Data
    @NoArgsConstructor
    @AllArgsConstructor
    static class UserDto {

        private String userName;
        private LocalDate birthday;

    }
    //應用主類中增加這個序列化模組，並禁用對日期以時間戳方式輸出的特性
    @Bean
    public ObjectMapper serializingObjectMapper() {
        ObjectMapper objectMapper = new ObjectMapper();
        objectMapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
        objectMapper.registerModule(new JavaTimeModule());
        return objectMapper;
    }

}
 

三 測試

四  參考

http://blog.didispace.com/Spring-Boot-And-Feign-Use-localdate/