java - 从实体生成表

Question

使用 Hibernate 工具，我想生成一个脚本来从我的 java 项目中的实体创建表。 你知道怎么做吗？

import java.io.Serializable; 
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table(name = "foo")
public class Foo implements Serializable {

    private static final long serialVersionUID = 1L;
    @Id
    private int userId;
    @Id
    private int number;

    public int getUserId() {
        return userId;
    }
    public void setUserId(int userId) {
        this.userId = userId;
    }
    public int getNumber() {
        return number;
    }
    public void setNumber(int number) {
        this.number= number;
    }
}

我正在尝试这个非常简单的例子

Answer 1

这样做

    String[] s = config.generateSchemaCreationScript(new PostgreSQL82Dialect());
    StringBuilder script = new StringBuilder();
    Formatter formatter = FormatStyle.DDL.getFormatter();
    for (int i = 0; i < s.length; i++) {           
        String line = formatter.format(s[i]);            
        script.append(line);
        script.append(";\n");
    }
    System.out.println(script.toString());