我在提交数据的时候，每次都出现这样的错误，不知道是什么原因，请各位大哥大姐多多指教，分不够咱就加！！
loginAction/*
* Generated by MyEclipse Struts
* Template path: templates/java/JavaClass.vtl
*/
package com.yourcompany.struts.action;import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.hibernate.Session;
import org.hibernate.Transaction;import com.yourcompany.HibernateSessionFactory;
import com.yourcompany.Login;
import com.yourcompany.struts.form.LoginForm;/**
* MyEclipse Struts
* Creation date: 06-05-2008
*
* XDoclet definition:
* @struts.action path="/login" name="loginForm" input="/login.jsp" scope="request" validate="true"
*/
public class LoginAction extends Action {
/*
* Generated Methods
*/ /**
* Method execute
* @param mapping
* @param form
* @param request
* @param response
* @return ActionForward
*/
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) {
LoginForm loginForm = (LoginForm) form;// TODO Auto-generated method stub
String username=loginForm.getUsername();
String password=loginForm.getSss();
Session session = HibernateSessionFactory.getSession();
Transaction tx=session.beginTransaction();
Login user =new Login();
String privilege="admin";
user.setPassword(password);
user.setUsername(username);
user.setPrivilege(privilege);
session.save(user);
tx.commit();
session.close();
return mapping.findForward("success");
}
}
Login.java
package com.yourcompany;// Generated by MyEclipse Persistence Tools/**
* Login generated by MyEclipse Persistence Tools
*/
public class Login extends AbstractLogin implements java.io.Serializable { // Constructors /** default constructor */
public Login() {
} /** minimal constructor */
public Login(String privilege) {
super(privilege);
} /** full constructor */
public Login(String password, String username,String privilege) {
super(password, privilege,privilege);
}}
AbstractLogin.javapackage com.yourcompany;/**
* AbstractLogin generated by MyEclipse Persistence Tools
*/public abstract class AbstractLogin implements java.io.Serializable { // Fields private String username; private String password; private String privilege; // Constructors /** default constructor */
public AbstractLogin() {
} /** minimal constructor */
public AbstractLogin(String privilege) {
this.privilege = privilege;
} /** full constructor */
public AbstractLogin(String password, String username,String privilege) {
this.password = password;
this.username = username;
} // Property accessors public String getUsername() {
return this.username;
} public void setUsername(String username) {
this.username = username;
} public String getPassword() {
return this.password;
} public void setPassword(String password) {
this.password = password;
} public String getPrivilege() {
return this.privilege;
} public void setPrivilege(String privilege) {
this.privilege = privilege;
}}
loginAction/*
* Generated by MyEclipse Struts
* Template path: templates/java/JavaClass.vtl
*/
package com.yourcompany.struts.action;import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.hibernate.Session;
import org.hibernate.Transaction;import com.yourcompany.HibernateSessionFactory;
import com.yourcompany.Login;
import com.yourcompany.struts.form.LoginForm;/**
* MyEclipse Struts
* Creation date: 06-05-2008
*
* XDoclet definition:
* @struts.action path="/login" name="loginForm" input="/login.jsp" scope="request" validate="true"
*/
public class LoginAction extends Action {
/*
* Generated Methods
*/ /**
* Method execute
* @param mapping
* @param form
* @param request
* @param response
* @return ActionForward
*/
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) {
LoginForm loginForm = (LoginForm) form;// TODO Auto-generated method stub
String username=loginForm.getUsername();
String password=loginForm.getSss();
Session session = HibernateSessionFactory.getSession();
Transaction tx=session.beginTransaction();
Login user =new Login();
String privilege="admin";
user.setPassword(password);
user.setUsername(username);
user.setPrivilege(privilege);
session.save(user);
tx.commit();
session.close();
return mapping.findForward("success");
}
}
Login.java
package com.yourcompany;// Generated by MyEclipse Persistence Tools/**
* Login generated by MyEclipse Persistence Tools
*/
public class Login extends AbstractLogin implements java.io.Serializable { // Constructors /** default constructor */
public Login() {
} /** minimal constructor */
public Login(String privilege) {
super(privilege);
} /** full constructor */
public Login(String password, String username,String privilege) {
super(password, privilege,privilege);
}}
AbstractLogin.javapackage com.yourcompany;/**
* AbstractLogin generated by MyEclipse Persistence Tools
*/public abstract class AbstractLogin implements java.io.Serializable { // Fields private String username; private String password; private String privilege; // Constructors /** default constructor */
public AbstractLogin() {
} /** minimal constructor */
public AbstractLogin(String privilege) {
this.privilege = privilege;
} /** full constructor */
public AbstractLogin(String password, String username,String privilege) {
this.password = password;
this.username = username;
} // Property accessors public String getUsername() {
return this.username;
} public void setUsername(String username) {
this.username = username;
} public String getPassword() {
return this.password;
} public void setPassword(String password) {
this.password = password;
} public String getPrivilege() {
return this.privilege;
} public void setPrivilege(String privilege) {
this.privilege = privilege;
}}
javax.servlet.ServletException: org.hibernate.exception.ConstraintViolationException: could not insert: [com.yourcompany.Login]
org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:523)
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:421)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
root cause org.hibernate.exception.ConstraintViolationException: could not insert: [com.yourcompany.Login]
org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:63)
org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
org.hibernate.persister.entity.BasicEntityPersister.insert(BasicEntityPersister.java:1777)
org.hibernate.persister.entity.BasicEntityPersister.insert(BasicEntityPersister.java:2178)
org.hibernate.action.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:34)
org.hibernate.engine.ActionQueue.execute(ActionQueue.java:239)
org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:240)
org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:160)
org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:95)
org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:184)
org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:33)
org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:173)
org.hibernate.event.def.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:27)
org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:69)
org.hibernate.impl.SessionImpl.save(SessionImpl.java:481)
org.hibernate.impl.SessionImpl.save(SessionImpl.java:476)
com.yourcompany.struts.action.LoginAction.execute(LoginAction.java:52)
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:419)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)