springboot 注解方式 返回json字符串中 Date转换成秒/毫秒 在前端展示

期望结果

解决方法:

在bean中使用注解@JsonSerialize

    // 创建时间
    // Date2LongSerializer为自定义转换器
    @JsonSerialize(using = Date2LongSerializer.class)
    private Date createTime;
 

Date2LongSerializer.class

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializerProvider;
 
import java.io.IOException;
import java.util.Date;
 
public class Date2LongSerializer extends JsonSerializer<Date> {
    @Override
    public void serialize(Date date, JsonGenerator jsonGenerator, SerializerProvider serializerProvider) throws IOException, JsonProcessingException {
        jsonGenerator.writeNumber(date.getTime()/1000);
    }
}

转载来源: https://blog.youkuaiyun.com/qq_37749185/article/details/81131414