这个COMPANY字段明明不是id啊.
    
    

Contact.java

package qiye.entity;

public class Contact {
    private String company;
    private String tel;
    private String fax;
    private String address;
    private String url;
    
    public String getCompany(){
        return this.company;
    }
    public String getTel() {
        return tel;
    }
    public void setTel(String tel) {
        this.tel = tel;
    }
    public String getFax() {
        return fax;
    }
    public void setFax(String fax) {
        this.fax = fax;
    }
    public String getAddress() {
        return address;
    }
    public void setAddress(String address) {
        this.address = address;
    }
    public String getUrl() {
        return url;
    }
    public void setUrl(String url) {
        this.url = url;
    }
    public void setCompany(String company){
        this.company = company;
    }
}

Contact.java 我没有写id.

不能把

改成

吗?