SpringMVC+spring+hibernate整合ssh

package com.jxd.entity; import java.io.Serializable; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.Id; import javax.persistence.Table; @Entity @Table(name="user") public class User implements Serializable{ private static final long serialVersionUID = -8734898540798129125L; private int id; private String username; private String password; private int age; public User() { super(); // TODO Auto-generated constructor stub } public User(int id, String username, String password, int age) { super(); this.id = id; this.username = username; this.password = password; this.age = age; } @Id @GeneratedValue public int getId() { return id; } public void setId(int 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 int getAge() { return age; } public void setAge(int age) { this.age = age; } @Override public String toString() { return "UserDao [id=" + id + ", username=" + username + ", password=" + password + ", age=" + age + "]"; } @Override public int hashCode() { final int prime = 31; int result = 1; result = prime * result + id; return result; } @Override public boolean equals(Object obj) { if (this == obj) return true; if (obj == null) return false; if (getClass() != obj.getClass()) return false; User other = (User) obj; if (id != other.id) return false; return true; } }