工欲善其事

写项目的时候发现 Date里边好多方法不在被推荐使用了，有个 LocalDateTime 用起来还蛮方便的，但是前后端传值的时候老出问题，如下：

"createTime": {
        "nano": 0,
        "monthValue": 3,
        "hour": 17,
        "minute": 33,
        "second": 10,
        "dayOfMonth": 17,
        "dayOfWeek": "THURSDAY",
        "dayOfYear": 76,
        "year": 2022,
        "month": "MARCH",
        "chronology": {
            "id": "ISO",
            "calendarType": "iso8601"
        }
    },
    "scoreTime": {
        "nano": 0,
        "monthValue": 3,
        "hour": 17,
        "minute": 57,
        "second": 52,
        "dayOfMonth": 17,
        "dayOfWeek": "THURSDAY",
        "dayOfYear": 76,
        "year": 2022,
        "month": "MARCH",
        "chronology": {
            "id": "ISO",
            "calendarType": "iso8601"
        }
    },

因为使用的框架在返回前端数据的时候做了处理，将数据从对象转成了json使用的还是 jackson 就出了问题，其实解决方法也有很多种。

第一直接在实体上加注解

/**
 * 创建时间
 */
@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
@JsonSerialize(using = LocalDateTimeSerializer.class)
private LocalDateTime createTime;
/**
 * 评分时间
 */
@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
@JsonSerialize(using = LocalDateTimeSerializer.class)
private LocalDateTime scoreTime;

第二种Maven依赖

<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.8.8</version>
</dependency>
<dependency>
    <groupId>com.fasterxml.jackson.module</groupId>
    <artifactId>jackson-module-parameter-names</artifactId>
    <version>2.8.8</version>
</dependency>
<dependency>
    <groupId>com.fasterxml.jackson.datatype</groupId>
    <artifactId>jackson-datatype-jdk8</artifactId>
    <version>2.8.8</version>
</dependency>
<dependency>
    <groupId>com.fasterxml.jackson.datatype</groupId>
    <artifactId>jackson-datatype-jsr310</artifactId>
    <version>2.8.8</version>
</dependency>

这个我没测试