这是我用来调用 Customer 类的主要方法
public class HQLMain {
// public static void usingHibernateQuery(){
// SessionFactory sf = HibernateUtil.sf;
// Session session = sf.openSession();
// //Query query =session.createQuery("from Customer");
// Query query =session.getNamedQuery("selectName");
// query.setString("name", "master");
//
// List<Customer> customers = query.list();
// customers.forEach(customer-> System.out.println(customer.getName()));
// }
public static void usingStoredProcedure(){
SessionFactory sf = HibernateUtil.sf;
Session session = sf.openSession();
//Query query =session.createQuery("from Customer");
Query query =session.getNamedQuery("callCustomerStoredProc");
query.setString("name", "master");
List<Customer> customers = query.list();
customers.forEach(customer-> System.out.println(customer.getName()));
}
public static void main(String[] args) {
//usingHibernateQuery();
usingStoredProcedure();
}
这是用作实体的类，并在此处命名为存储过程，请帮助使用 hibernate 执行此存储过程调用，我不知道要在 java 中使用存储过程。我想知道何时给出 name="callCustomerStoredProc"从主方法调用它不起作用，请让我知道
package org.jnit.domain;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import javax.persistence.CascadeType;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.NamedNativeQueries;
import javax.persistence.NamedNativeQuery;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.persistence.OneToMany;
import javax.persistence.OneToOne;
import javax.persistence.OrderColumn;
import javax.persistence.Table;
import org.hibernate.annotations.LazyCollection;
import org.hibernate.annotations.LazyCollectionOption;
//@NamedQueries(value={@NamedQuery(name="selectName",query="from Customer where name= :name")})
@Entity
@Table(name = "customer")
@NamedNativeQueries(value={@NamedNativeQuery(name="callCustomerStoredProc",query="call fetchCustomers(:name)",resultClass=Customer.class)})
public class Customer implements Serializable {
/**
*
*/
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue
private int customerId;
private String name;
private String street;
private String city;
private String state;
private String country;
private String zipCode;
@OneToOne(cascade = CascadeType.ALL, mappedBy = "customer", optional = true)
private PhoneInfo phoneinfo;
@OneToMany(cascade = CascadeType.ALL, mappedBy = "customer")
@OrderColumn(name="idx")
@LazyCollection(LazyCollectionOption.EXTRA)
private List<Order> ordersplaced = new ArrayList<Order>();
public List<Order> getOrdersplaced() {
return ordersplaced;
}
public void setOrdersplaced(List<Order> ordersplaced) {
this.ordersplaced = ordersplaced;
}
public PhoneInfo getPhoneInfo() {
return phoneinfo;
}
public void setPhoneInfo(PhoneInfo phoneInfo) {
this.phoneinfo = phoneInfo;
}
public int getCustomerId() {
return customerId;
}
public void setCustomerId(int customerId) {
this.customerId = customerId;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getStreet() {
return street;
}
public void setStreet(String street) {
this.street = street;
}
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
public String getState() {
return state;
}
public void setState(String state) {
this.state = state;
}
public String getCountry() {
return country;
}
public void setCountry(String country) {
this.country = country;
}
public String getZipCode() {
return zipCode;
}
public void setZipCode(String zipCode) {
this.zipCode = zipCode;
}
}
我收到以下错误:
Hibernate: call fetchCustomers(?)
Exception in thread "main" org.hibernate.exception.SQLGrammarException: could not extract ResultSet
at org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:80)
at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:49)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:126)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:112)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:91)
at org.hibernate.loader.Loader.getResultSet(Loader.java:2066)
at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1863)
at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1839)
at org.hibernate.loader.Loader.doQuery(Loader.java:910)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:355)
at org.hibernate.loader.Loader.doList(Loader.java:2554)
at org.hibernate.loader.Loader.doList(Loader.java:2540)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2370)
at org.hibernate.loader.Loader.list(Loader.java:2365)
at org.hibernate.loader.custom.CustomLoader.list(CustomLoader.java:353)
at org.hibernate.internal.SessionImpl.listCustomQuery(SessionImpl.java:1873)
at org.hibernate.internal.AbstractSessionImpl.list(AbstractSessionImpl.java:311)
at org.hibernate.internal.SQLQueryImpl.list(SQLQueryImpl.java:141)
at org.jnit.main.HQLMain.usingStoredProcedure(HQLMain.java:31)
at org.jnit.main.HQLMain.main(HQLMain.java:37)
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: PROCEDURE demo.fetchCustomers does not exist
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
at com.mysql.jdbc.Util.getInstance(Util.java:381)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1030)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3558)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3490)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1959)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2109)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2648)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2077)
at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:2228)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:82)
... 15 more
最佳答案
验证您创建连接对象的用户 ID 是否有权执行上述过程
关于java - 我想使用 Hibernate 查询语言执行存储过程调用，并尝试以 pe 的方式执行此操作，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/39629722/