Hibernate®11. many2?#« commandid

Hibernate ö11. many2jw1_« zookeeper

± Íámámímímámān:

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CRUD:

User

package com.demo.model;import java.util.Set;/**Óû§ÐÅÏ¢ * @author wobendiankun *2014-10-29 ÏÂÎç11:05:26 */public class User {/** *Óû§Id  */private int userId;/** * Óû§Ãû */private String userName;/** * ÃÜÂë */private String password;private Student student ;private Set
  
    roles; public User() {}public User(int userId) {this.userId = userId;}public User(String userName, String password) {this.userName = userName;this.password = password;}public int getUserId() {return userId;}public void setUserId(int userId) {this.userId = userId;}public String getUserName() {return userName;}public void setUserName(String userName) {this.userName = userName;}public String getPassword() {return password;}public void setPassword(String password) {this.password = password;}public Student getStudent() {return student;}public void setStudent(Student student) {this.student = student;}public Set
   
     getRoles() {return roles;}public void setRoles(Set
    
      roles) {this.roles = roles;}}
    
   
  

Role

package com.demo.model;import java.util.Set;/**½ÇÉ«ÐÅÏ¢ * @author wobendiankun *2014-11-2 ÏÂÎç08:29:54 */public class Role {/** * ½ÇÉ«id */private int roleId;/** * ½ÇÉ«Ãû³Æ */private String roleName;private Set
  
    users;public Role() {}public Role(int roleId) {this.roleId = roleId;}public Role(String roleName) {this.roleName = roleName;}public int getRoleId() {return roleId;}public void setRoleId(int roleId) {this.roleId = roleId;}public String getRoleName() {return roleName;}public void setRoleName(String roleName) {this.roleName = roleName;}public Set
   
     getUsers() {return users;}public void setUsers(Set
    
      users) {this.users = users;}}
    
   
  

Å äögou:

User. hbm. xml

  
  
   
    
     
      SEQ_T_USER
     
    
    
    
    
    
     
     
    
   
  

Role. hbm. xml

  
  
   
    
     
      SEQ_T_ROLE
     
    
    
    
     
     
    
   
  

Add:

@Testpublic void addTest(){User user1=new User("ÕÔÈý","111");User user2=new User("ÎÞËÄ","111");Set
  
    users=new HashSet
   
    ();users.add(user1);users.add(user2);Role role=new Role("²ÆÎñ²¿");Set
    
      roles=new HashSet
     
      ();//ÉèÖÃË«Ïò¹Øϵrole.setUsers(users);user1.setRoles(roles);user2.setRoles(roles);Session session = null;try {session = HibernateUtil.openSession();session.beginTransaction();session.save(role);session.save(user1);session.save(user2);session.getTransaction().commit();} catch (Exception e) {session.getTransaction().rollback();e.printStackTrace();} finally {HibernateUtil.closeSession(session);}}
     
    
   
  

· ¢ ³ Ösql:

Hibernate: insert into t_role (role_name, role_id) values (?, ?)Hibernate: insert into t_user (user_name, password, student_id, user_id) values (?, ?, ?, ?)Hibernate: insert into t_user (user_name, password, student_id, user_id) values (?, ?, ?, ?)Hibernate: insert into t_user_role (role_id, user_id) values (?, ?)Hibernate: insert into t_user_role (role_id, user_id) values (?, ?)

Load;

@Testpublic void loadTest(){Session session = null;try {session = HibernateUtil.openSession();session.beginTransaction();Role role=(Role)session.load(Role.class,3);System.out.println("½ÇÉ«Ãû³Æ:"+role.getRoleName());System.out.println("users:"+role.getUsers());session.getTransaction().commit();} catch (Exception e) {session.getTransaction().rollback();e.printStackTrace();} finally {HibernateUtil.closeSession(session);}}

· ¢ ³ Ösql:

Hibernate: select role0_.role_id as role1_4_0_, role0_.role_name as role2_4_0_ from t_role role0_ where role0_.role_id=?½ÇÉ«Ãû³Æ:²ÆÎñ²¿Hibernate: select users0_.role_id as role2_4_1_, users0_.user_id as user1_1_, user1_.user_id as user1_2_0_, user1_.user_name as user2_2_0_, user1_.password as password2_0_, user1_.student_id as student4_2_0_ from t_user_role users0_ inner join t_user user1_ on users0_.user_id=user1_.user_id where users0_.role_id=?users:[com.demo.model.User@1f31652, com.demo.model.User@3e96cf]