Spring Boot - 返回日期(不是时间戳)

Question

我正在使用Spring-Boot 1.2.2和这段代码:

@RequestMapping(value = "/dates", method = RequestMethod.GET)
public Date getDates() {
    return new Date();
}

返回此响应:

1433241315047

我怎样才能让它回归"Sun May 31 16:26:43 IDT 2015"？我在谷歌上发现了一些例子,mapper.configure(SerializationConfig.Feature.WRITE_DATES_AS_TIMESTAMPS, false)但无法弄清楚我应该在哪里写这个......

更新:
我向pom.xml添加了2个依赖项:

<dependency>
        <groupId>joda-time</groupId>
        <artifactId>joda-time</artifactId>
        <version>2.7</version>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.datatype</groupId>
        <artifactId>jackson-datatype-joda</artifactId>
        <version>2.4.0</version>
    </dependency>

并添加spring.jackson.date-format=yyyy-MM-dd到application.properties 仍然获取时间戳,所以我开始消除所有不必要的代码,发现删除@Configuration我的注释WebConfiguration.java解决了这个问题:

import org.springframework.context.annotation.ComponentScan;
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.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;

import java.util.List;

@Configuration
@EnableWebMvc
@ComponentScan
public class WebConfiguration extends WebMvcConfigurerAdapter {

    @Override
    public void configureMessageConverters(List<HttpMessageConverter<?>>     httpMessageConverters) {

        httpMessageConverters.add(new     MappingJackson2HttpMessageConverter());
    }
}

我想这个类会以某种方式覆盖日期格式设置......所以我可以在这里指定日期格式吗？

Answer 1

添加依赖项在com.fasterxml.jackson.datatype:jackson-datatype-joda上添加依赖项,并将spring.jackson.serialization.write-dates-as-timestamps:false添加到application.properties文件中.

这是一个类似post- json日期格式的spring-boot

在你的application.properties中添加spring.jackson.date-format = #Date格式字符串(例如yyyy-MM-dd HH:mm:ss),或完全限定的日期格式类名(例如com.fasterxml.jackson.databind) .util.ISO8601DateFormat)

您可以尝试编写自定义日期反序列化程序 -

// CustomDateSerializer类

public class CustomDateSerializer extends JsonSerializer<Date> {   
}

但是,在这种情况下,您需要注释date @JsonSerialize的getter方法(using = CustomDateSerializer.class)

@Configuration
public class WebConfig extends WebMvcConfigurationSupport {

@Bean
public MappingJackson2HttpMessageConverter    customJackson2HttpMessageConverter() {
   MappingJackson2HttpMessageConverter jsonConverter = new           MappingJackson2HttpMessageConverter();
   ObjectMapper objectMapper = new ObjectMapper();
      objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
  jsonConverter.setObjectMapper(objectMapper);
  return jsonConverter;
 }

  @Override
  public void configureMessageConverters(List<HttpMessageConverter<?>>   converters) {
  converters.add(customJackson2HttpMessageConverter());
 super.addDefaultHttpMessageConverters();
}
  }

Answer 2

spring.jackson.date-format=yyyy-MM-dd在application.properties工作中