JPA设置表名和实体名，表字段与实体字段的对应

转自：https://blog.csdn.net/LQW_java_home/article/details/53079363

首先 你的jpaProperties配置项中要有

<prop key="hibernate.hbm2ddl.auto">update</prop>

这样就可以直接有对象映射为表结构，实现面向对象向数据库转化。

实体的名字可以和表名字不一样，字段名字和实体的名字也可以不一样。

package com.shiroweb.entitys;

import java.util.Date;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table(name="shiro_user")//设置数据库中表名字
public class ShiroUser {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;
    @Column(name="USER_NAME")<span style="font-family: Arial, Helvetica, sans-serif;">//设置数据库中字段名字，也可以设置长度，是否为空等属性</span>
    private String username;
    @Column(name="PASS_WORD")
    private String password;
    @Column(name="CREATE_DATE")
    private Date createDate;
    @Column(name="USER_ID")
    private String userId;

    public String getUserId() {
        return userId;
    }

    public void setUserId(String userId) {
        this.userId = userId;
    }

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public Date getCreateDate() {
        return createDate;
    }

    public void setCreateDate(Date createDate) {
        this.createDate = createDate;
    }

}