HYPERLINK"http://www.blogjava.net/yxhxj2006/archive/2012/09/20/388114.html"全注解SSH全注解SSH一，hibernateannotationClass注解：1.@Entity：表明当前类是一个持久化类2.@Table(name="team",catalog="NBA")：映射一个表team，所对应的数据库是NBA，可以省略字段属性注解：1.@GenericGenerator(name="generator",strategy="increment")@Id@GeneratedValue(generator="generator")@Column(name="id",unique=true,nullable=false)解释：表明该字段是主键，自增长，不为空而且是唯一的2.@Column(name="description",length=500)解释：映射表中的description字段，长度是5003.@OneToMany(cascade=CascadeType.ALL,fetch=FetchType.LAZY,mappedBy="category")解释：级联操作：cascade=CascadeType.ALL，延迟加载：fetch=FetchType.LAZY，映射：mappedBy="category"，一对多方式4.@ManyToOne(fetch=FetchType.LAZY)@JoinColumn(name="category_id")解释：延迟加载：多对一方式，关联信息：外键name="category_id"OneToMany事例代码：数据库：mysqlcategory表：id，name，description(<Pk>id)product表：id,name,price,description,category_id(<pk>id，<fk>category_id)Category.javapackagecom.b510.examples;importjava.util.HashSet;importjava.util.Set;//标准注解importjavax.persistence.CascadeType;importjavax.persistence.Column;importjavax.persistence.Entity;importjavax.persistence.FetchType;importjavax.persistence.GeneratedValue;importjavax.persistence.Id;importjavax.persistence.OneToMany;importjavax.persistence.Table;//增加的注解importorg.hibernate.annotations.GenericGenerator;//当前的类是一个持久化类，是Category这个类。他映射了一个表category。所对应的数据库是users//这句：@Table(name="category",catalog="users")可以省略@Entity@Table(name="category",catalog="users")publicclassCategoryimplementsjava.io.Serializable{privatestaticfinallongserialVersionUID=3240281547213597385L;privateIntegerid;privateStringname;privateStringdescription;privateSet<Product>products=newHashSet<Product>(0);publicCategory(){}publicCategory(Stringname,Stringdescription,Set<Product>products){this.name=name;this.description=description;this.products=products;}//主键：@Id主键生成方式：strategy="increment"//映射表中id这个字段，不能为空，并且是唯一的@GenericGenerator(name="generator",strategy="increment")@Id@GeneratedValue(generator="generator")@Column(name="id",unique=true,nullable=false)publicIntegergetId(){