Mybatis日期格式自动转换需要用到的两个注解说明

public class Student {

     public Integer id;

     public String studentName;

     @JsonFormat (pattern= "yyyy-MM-dd" ) //从数据库读出日期格式时，进行转换的规则

     @DateTimeFormat (pattern = "yyyy-MM-dd" ) //接受从前端传入的日期格式，映射到java类日期属性的规则

     public Date birth;   

     public Integer getId() {

         return id;

     }

     public void setId(Integer id) {

         this .id = id;

     }

     public String getStudentName() {

         return studentName;

     }

     public void setStudentName(String studentName) {

         this .studentName = studentName;

     }

     public Date getBirth() {

         return birth;

     }

     public void setBirth(Date birth) {

         this .birth = birth;

     }

}

@ Select ( "select date_format(createTime,'%Y-%m-%d') from tb where id = ?" )

@ Update ( "update tb set createTime = date_format(now(),'%Y-%m-%d %H:%i:%s') where id = ?" )

/**

*jdbcType = DATE 时,只传入了年月日

*/

@ Update ( "update tb set createTime = #{param, jdbcType=DATE} where id = ?" )

/**

*jdbcType = TIMESTAMP ,年月日+ 时分秒

*/

@ Update ( "update tb set createTime = #{param, jdbcType=TIMESTAMP } where id = ?" )