求救：加了前缀属性就无法运行
上面是我的代码
加了前缀属性就无法运行，注释掉就正常
我是跟着老师的视频走的，其他代码一致
求大神拯救
ps:加了前缀属性后
最后给一个
ERROR: HHH000099: an assertion failure occured (this may indicate a bug in Hibernate, but is more likely due to unsafe use of the session): org.hibernate.AssertionFailure: null id in pojo.Student entry (don't flush the Session after an exception occurs)
啥意思？
我手动设置id=1不行，id为null不行，不设置id也不行
不要前缀属性就咋都行（设置id没有用，自动增长的）
package pojo;
import java.util.Date;
public class Student implements java.io.Serializable {
// Fields
private int id;
private String name;
private String gender;
private Date birthday;
private String address;
// Constructors
/** default constructor */
public Student() {
}
/** full constructor */
public Student(String name, String gender, Date birthday, String address) {
this.name = name;
this.gender = gender;
this.birthday = birthday;
this.address = address;
}
// Property accessors
public Integer getId() {
return this.id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return this.name;
}
public void setName(String name) {
this.name = name;
}
public String getGender() {
return this.gender;
}
public void setGender(String gender) {
this.gender = gender;
}
public Date getBirthday() {
return this.birthday;
}
public void setBirthday(Date birthday) {
this.birthday = birthday;
}
public String getAddress() {
return this.address;
}
public void setAddress(String address) {
this.address = address;
}
/* (non-Javadoc)
* @see java.lang.Object#toString()
*/
@Override
public String toString() {
return "Student [id=" + id + ", name=" + name + ", gender=" + gender
+ ", birthday=" + birthday + ", address=" + address + "]";
}
}
上面是类
下面是映射
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<!--
Mapping file autogenerated by MyEclipse Persistence Tools
-->
<hibernate-mapping>
<class name="pojo.Student" table="student" catalog="xiele007">
<id name="id" type="java.lang.Integer">
<column name="id" />
<generator class="native" />
</id>
<property name="name" type="java.lang.String">
<column name="name" length="16" />
</property>
<property name="gender" type="java.lang.String">
<column name="gender" length="32" />
</property>
<property name="birthday" type="java.util.Date">
<column name="birthday" length="10" />
</property>
<property name="address" type="java.lang.String">
<column name="address" />
</property>
</class>
</hibernate-mapping>
