存放的类如下：
public class yonghu {
private String huming,name,mima,phonenumber;
private String sex;
private int age;
public void setHuming(String huming)
{
this.huming=huming;
}
public String getHuming(){return huming;}
public void setName(String name)
{
this.name=name;
}
public String getName(){return name;}
public void setSex(String sex)
{
this.sex=sex;
}
public String getSex(){return sex;}
public void setMima(String mima)
{
this.mima=mima;
}
public String getMima(){return mima;}
public void setPhonenumber(String number){this.phonenumber=number;}
public String getPhonenumber(){return phonenumber;}
public void setAge(int age){this.age=age;}
public int getAge(){return age;}
}
数据都是私有，所以得调用方法来得到值。后端存放代码为：
session.setAttribute("yonghu",user);
