関数 createNamedQuery が結果を返さないため、TomeEE + MySql を使用しています。問題は私のentityManagerにあると思いましたが、debugModeをチェックインして注入しました。
これは私のコードです:
ユーザー エンティティ:
package pl.gsite.db.model;
import java.io.Serializable;
import javax.persistence.Basic;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.persistence.Table;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;
import javax.xml.bind.annotation.XmlRootElement;
@Entity
@Table(name = "user")
@XmlRootElement
@NamedQueries({
@NamedQuery(name = "User.loginAndPassword", query = "SELECT u FROM User u WHERE u.login = :login and u.password = :password"),
@NamedQuery(name = "User.findAll", query = "SELECT u FROM User u"),
@NamedQuery(name = "User.findById", query = "SELECT u FROM User u WHERE u.id = :id"),
@NamedQuery(name = "User.findByLogin", query = "SELECT u FROM User u WHERE u.login = :login"),
@NamedQuery(name = "User.findByPassword", query = "SELECT u FROM User u WHERE u.password = :password")})
public class User implements Serializable {
private static final long serialVersionUID = 1L;
@Id
@Basic(optional = false)
@NotNull
@Column(name = "id")
private Integer id;
@Size(max = 100)
@Column(name = "login")
private String login;
@Size(max = 100)
@Column(name = "password")
private String password;
public User() {
}
public User(Integer id) {
this.id = id;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getLogin() {
return login;
}
public void setLogin(String login) {
this.login = login;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
@Override
public int hashCode() {
int hash = 0;
hash += (id != null ? id.hashCode() : 0);
return hash;
}
@Override
public boolean equals(Object object) {
// TODO: Warning - this method won't work in the case the id fields are not set
if (!(object instanceof User)) {
return false;
}
User other = (User) object;
if ((this.id == null && other.id != null) || (this.id != null && !this.id.equals(other.id))) {
return false;
}
return true;
}
@Override
public String toString() {
return "pl.gsite.db.model.User[ id=" + id + " ]";
}
}
私のマネージドBean:
package pl.gsite.bean.request;
import java.util.ArrayList;
import java.util.List;
import javax.ejb.Stateful;
import javax.inject.Named;
import javax.enterprise.context.RequestScoped;
import javax.enterprise.context.spi.Context;
import javax.inject.Inject;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.TypedQuery;
import pl.gsite.bean.session.LoggedUserBean;
import pl.gsite.db.model.User;
import javax.persistence.NoResultException;
import javax.persistence.PersistenceContextType;
import javax.persistence.Query;
@Named(value = "loginRequest")
@RequestScoped
public class LoginRequest {
@PersistenceContext(unitName = "gsitePU")
private EntityManager em;
@Inject
private LoggedUserBean loggedUserBean;
private String login;
private String password;
public LoginRequest() {
}
public String authentication() {
try {
List<User> uList = new ArrayList<User>();
TypedQuery qq = em.createNamedQuery("User.findAll", User.class);
uList = qq.getResultList(); // <-- returns empty list
TypedQuery<User> query = em.createNamedQuery("User.loginAndPassword", User.class).setParameter("login", login).setParameter("password", password);
User u = query.getSingleResult(); // <-- throws an NoResultException
this.loggedUserBean.setLoggedUser(u);
}
catch(NoResultException e) {
e.printStackTrace();
}
return "index";
}
/**
* @return the login
*/
public String getLogin() {
return login;
}
/**
* @param login the login to set
*/
public void setLogin(String login) {
this.login = login;
}
/**
* @return the password
*/
public String getPassword() {
return password;
}
/**
* @param password the password to set
*/
public void setPassword(String password) {
this.password = password;
}
}
持続性.xml
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
<persistence-unit name="gsitePU" transaction-type="JTA">
<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
<jta-data-source>gsite_mysql</jta-data-source>
<properties>
<property name="openjpa.jdbc.SynchronizeMappings" value="buildSchema(foreignKeys=true)"/>
</properties>
</persistence-unit>
</persistence>