使用了数据库 发现总是崩溃 提示表找不到 或者字段不存在之类的

import java.io.Serializable;
@Table(name = "CommonCityBean")
public class CommonCityBean implements Serializable {
    @Id(column = "tid")
    private int tid;
    private String city;
    public CommonCityBean(){

    }

    public CommonCityBean(String city){
        this.city = city;
    }

    public String getCity() {
        return city;
    }

    public void setCity(String city) {
        this.city = city;
    }

    public int getTid() {
        return tid;
    }

    public void setTid(int tid) {
        this.tid = tid;
    }
}