首先 你的jpaProperties配置項中要有

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

實體的名字可以和表名字不一樣，欄位名字和實體的名字也可以不一樣。

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")//設定資料庫中表名字
public class ShiroUser {
	@Id
	@GeneratedValue(strategy = GenerationType.IDENTITY)
	private Long id;
	@Column(name="USER_NAME")<span style="font-family: Arial, Helvetica, sans-serif;">//設定資料庫中欄位名字，也可以設定長度，是否為空等屬性</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;
	}
	
}