springMVC+hibernate搭建的一个demo帮助新人

package com.lijianming.entity; import javax.persistence.Column; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.Id; import javax.persistence.Table; import org.hibernate.annotations.GenericGenerator; @Entity @Table(name="t_user") public class User { @Id @GeneratedValue(generator="system-uuid") @GenericGenerator(name="system-uuid",strategy="uuid") private String id; @Column(length=32) private String userName; @Column(length=32) private String age; public String getId() { return id; } public void setId(String id) { this.id = id; } public String getUserName() { return userName; } public void setUserName(String userName) { this.userName = userName; } public String getAge() { return age; } public void setAge(String age) { this.age = age; } }