1，导包
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>${jackson.version}</version>
</dependency>
2，时间格式转换类
package com.study.utils;
/**
* Created by Administrator on 2017/10/27.
*/
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializerProvider;
public class CustomDateSerializer extends JsonSerializer<Date> {
@Override
public void serialize(Date value, JsonGenerator jsonGenerator, SerializerProvider provider) throws IOException,
JsonProcessingException {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
jsonGenerator.writeString(sdf.format(value));
}
}
3，在实体类的某一字段上映入
@JsonSerialize(using = CustomDateSerializer.class)
private Date create_time;
