@Column注解的问题?报错

代码如下

@Column(name="user_phon",length=30)
public String getUser_phon() {
return user_phon;
}
public void setUser_phon(String user_phon) {
this.user_phon = user_phon;
}
@Column(name="user_depart",length=30)
public int getUser_depart() {
return user_depart;
}
public void setUser_depart(int user_depart) {
this.user_depart = user_depart;
}
简单的注解

报错如下:

严重: Servlet.service() for servlet [spring] in context with path [/toms] threw exception [Handler processing failed; nested exception is java.lang.Error: Unresolved compilation problems: 
Columu cannot be resolved to a type
The attribute name is undefined for the annotation type Columu
The attribute length is undefined for the annotation type Columu
] with root cause

折腾一天了