Spring MVC日期绑定返回空值

我在类中创建了一个时间戳成员，并将其存储在数据库中。当我尝试更新它的值时，它将变为null，但可以在UI中看到它的值

我使用init binder将字符串转换为日期，但它不起作用，请帮助我

CNTC.java

    import java.util.Date;
    import java.util.HashSet;
    import java.util.Set;

    import javax.persistence.Column;
    import javax.persistence.Entity;
    import javax.persistence.FetchType;
    import javax.persistence.GeneratedValue;

    import static javax.persistence.GenerationType.IDENTITY;

    import javax.persistence.Id;
    import javax.persistence.OneToMany;
    import javax.persistence.Table;
    import javax.persistence.Temporal;
    import javax.persistence.TemporalType;

    import org.springframework.format.annotation.DateTimeFormat;

    /**
     * Cntc generated by hbm2java
     */
    @Entity
    @Table(name = "cntc", catalog = "ecable")
    public class Cntc implements java.io.Serializable {

        private Integer cntcId;
        private String mobNo;
        private String altMobNo;
        private String emailId;
        private String crtId;
        private Date crtTs;
        private String updId;
        @DateTimeFormat(pattern="yyyy-mm-dd HH:mm:ss.z")
        private Date updTs;
        private Set<Addr> addrs = new HashSet<Addr>(0);



        @Id
        @GeneratedValue(strategy = IDENTITY)
        @Column(name = "CNTC_ID", unique = true, nullable = false)
        public Integer getCntcId() {
            return this.cntcId;
        }

        public void setCntcId(Integer cntcId) {
            this.cntcId = cntcId;
        }

        @Column(name = "MOB_NO", nullable = false, length = 500)
        public String getMobNo() {
            return this.mobNo;
        }

        public void setMobNo(String mobNo) {
            this.mobNo = mobNo;
        }

        @Column(name = "ALT_MOB_NO", nullable = false, length = 500)
        public String getAltMobNo() {
            return this.altMobNo;
        }

        public void setAltMobNo(String altMobNo) {
            this.altMobNo = altMobNo;
        }

        @Column(name = "EMAIL_ID", nullable = false, length = 1000)
        public String getEmailId() {
            return this.emailId;
        }

        public void setEmailId(String emailId) {
            this.emailId = emailId;
        }

        @Column(name = "CRT_ID", nullable = false, length = 200)
        public String getCrtId() {
            return this.crtId;
        }

        public void setCrtId(String crtId) {
            this.crtId = crtId;
        }

        @Temporal(TemporalType.TIMESTAMP)
        @Column(name = "CRT_TS", nullable = false, length = 0)
        public Date getCrtTs() {
            return this.crtTs;
        }

        public void setCrtTs(Date crtTs) {
            this.crtTs = crtTs;
        }

        @Column(name = "UPD_ID", length = 200)
        public String getUpdId() {
            return this.updId;
        }

        public void setUpdId(String updId) {
            this.updId = updId;
        }

        @Temporal(TemporalType.TIMESTAMP)
        @Column(name = "UPD_TS", length = 0)
        public Date getUpdTs() {
            return this.updTs;
        }

        public void setUpdTs(Date updTs) {
            this.updTs = updTs;
        }

    }

在UI中显示的日期

2015-02-11 08:35:18.0

---

这是我可以在UI中看到的日期格式，但当我尝试更新其在spring数据绑定对象中的值时变为null，请帮助我，提前感谢。

您使用的格式是错误的，当您声明a时，您应该使用大写的

M

，所以应该是

@DateTimeFormat(pattern="yyyy-MM-dd HH:mm:ss")

@DateTimeFormat还将字符串转换为日期，因此不需要initBinder，您应该删除它

请注意，模式必须适合请求中的日期格式，发布的模式适合例如以下格式

“2010-07-04 00:00:00”

，我提到这一点是因为您的活页夹和@DateTimeFormat中的模式不同，您应该设置与请求参数格式对应的模式

@DateTimeFormat(pattern="yyyy-MM-dd HH:mm:ss")