java8 LocalDate 类型 json 解析 日期格式处理

在使用java8的过程中用到了新的日期类LocalDate、LocalDateTime类型，作为属性不经过任何处理转成json的时候会变成下面的样式。

"applicationTime": {
"month": "AUGUST",
"year": 2017,
"dayOfMonth": 2,
"dayOfWeek": "WEDNESDAY",
"dayOfYear": 214,
"monthValue": 8,
"hour": 16,
"minute": 38,
"second": 53,
"nano": 0,
"chronology": {
"id": "ISO",
"calendarType": "iso8601"
        }
      },

如何才能变成字符串的yyyy-MM-dd，需要导入几个类库

<properties>
<jackson.version>2.8.5</jackson.version>
</properties>


<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>${jackson.version}</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>${jackson.version}</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>${jackson.version}</version>
</dependency>
<!-- 支持java8 localDate等新时间类型的序列化 -->
<dependency>
<groupId>com.fasterxml.jackson.datatype</groupId>
<artifactId>jackson-datatype-jsr310</artifactId>
<version>${jackson.version}</version>
</dependency>

只有jackson-datatype-jsr310是用来格式化日期用的

 @JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "yyyy-MM-dd HH:mm:ss")
private LocalDateTime applicationTime;

或者

 @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
private LocalDateTime applicationTime;

加上@JsonFormat注解，这样最后当对象转成json的时候就变成了

"applicationTime": "2017-08-02 16:38:59",