hibernate annotation 主键生成策略问题

Question

hibernate annotation 主键生成策略问题:
  我有一个表,主键是id varchar(32) <pk,fk>
  我应该怎样设置annotation,让id既是uuid的生成策略,又是外键了.(与外表是多对一关联).
 最好有例子啊!!谢谢啊

Answer 1

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- 
    Mapping file autogenerated by MyEclipse Persistence Tools
-->
<hibernate-mapping>
    <class name="com.mmc.bean.Brand" table="brand" schema="dbo" catalog="computerdb" lazy="false">
        <id name="bid" type="java.lang.String">
            <column name="bid" length="32" />
            <generator class="uuid.hex" />
        </id>
        <property name="bname" type="java.lang.String">
            <column name="bname" length="30"  />
        </property>
        <set name="montherboards" inverse="true">
            <key>
                <column name="brand_id" length="32"  />
            </key>
            <one-to-many class="com.mmc.bean.Montherboard" />
        </set>
        <set name="models" inverse="true">
            <key>
                <column name="bid" length="32" />
            </key>
            <one-to-many class="com.mmc.bean.Model" />
        </set>
        <set name="monitors" inverse="true">
            <key>
                <column name="brand_id" length="32" />
            </key>
            <one-to-many class="com.mmc.bean.Monitor" />
        </set>
        <set name="cpus" inverse="true">
            <key>
                <column name="brand_id" length="32" />
            </key>
            <one-to-many class="com.mmc.bean.Cpu" />
        </set>
        <set name="memories" inverse="true">
            <key>
                <column name="brand_id" length="32" />
            </key>
            <one-to-many class="com.mmc.bean.Memory" />
        </set>
        <set name="keyboards" inverse="true">
            <key>
                <column name="brand_id" length="32"  />
            </key>
            <one-to-many class="com.mmc.bean.Keyboard" />
        </set>
        <set name="videos" inverse="true">
            <key>
                <column name="brand_id" length="32"  />
            </key>
            <one-to-many class="com.mmc.bean.Video" />
        </set>
        <set name="mouses" inverse="true">
            <key>
                <column name="brand_id" length="32"  />
            </key>
            <one-to-many class="com.mmc.bean.Mouse" />
        </set>
        <set name="harddisks" inverse="true">
            <key>
                <column name="brand_id" length="32"  />
            </key>
            <one-to-many class="com.mmc.bean.Harddisk" />
        </set>
    </class>
</hibernate-mapping>

Answer 2

package com.mmc.bean;import java.util.HashSet;
import java.util.Set;/**
 * Brand generated by MyEclipse Persistence Tools
 */public class Brand implements java.io.Serializable { // Fields private String bid; private String bname; private Set montherboards = new HashSet(0); private Set models = new HashSet(0); private Set monitors = new HashSet(0); private Set cpus = new HashSet(0); private Set memories = new HashSet(0); private Set keyboards = new HashSet(0); private Set videos = new HashSet(0); private Set mouses = new HashSet(0); private Set harddisks = new HashSet(0); // Constructors /** default constructor */
public Brand() {
} /** minimal constructor */
public Brand(String bid, String bname) {
this.bid = bid;
this.bname = bname;
} /** full constructor */
public Brand(String bid, String bname, Set montherboards, Set models,
Set monitors, Set cpus, Set memories, Set keyboards, Set videos,
Set mouses, Set harddisks) {
this.bid = bid;
this.bname = bname;
this.montherboards = montherboards;
this.models = models;
this.monitors = monitors;
this.cpus = cpus;
this.memories = memories;
this.keyboards = keyboards;
this.videos = videos;
this.mouses = mouses;
this.harddisks = harddisks;
} // Property accessors public String getBid() {
return this.bid;
} public void setBid(String bid) {
this.bid = bid;
} public String getBname() {
return this.bname;
} public void setBname(String bname) {
this.bname = bname;
} public Set getMontherboards() {
return this.montherboards;
} public void setMontherboards(Set montherboards) {
this.montherboards = montherboards;
} public Set getModels() {
return this.models;
} public void setModels(Set models) {
this.models = models;
} public Set getMonitors() {
return this.monitors;
} public void setMonitors(Set monitors) {
this.monitors = monitors;
} public Set getCpus() {
return this.cpus;
} public void setCpus(Set cpus) {
this.cpus = cpus;
} public Set getMemories() {
return this.memories;
} public void setMemories(Set memories) {
this.memories = memories;
} public Set getKeyboards() {
return this.keyboards;
} public void setKeyboards(Set keyboards) {
this.keyboards = keyboards;
} public Set getVideos() {
return this.videos;
} public void setVideos(Set videos) {
this.videos = videos;
} public Set getMouses() {
return this.mouses;
} public void setMouses(Set mouses) {
this.mouses = mouses;
} public Set getHarddisks() {
return this.harddisks;
} public void setHarddisks(Set harddisks) {
this.harddisks = harddisks;
}}

Answer 3

package com.mmc.bean;import java.util.HashSet;
import java.util.Set;public class Montherboard implements java.io.Serializable { private String boardId; private Brand brand; private String chipset; private Set configures = new HashSet(0); public Montherboard() {
} public Montherboard(String boardId, Brand brand, String chipset) {
this.boardId = boardId;
this.brand = brand;
this.chipset = chipset;
} /** full constructor */
public Montherboard(String boardId, Brand brand, String chipset,
Set configures) {
this.boardId = boardId;
this.brand = brand;
this.chipset = chipset;
this.configures = configures;
} // Property accessors public String getBoardId() {
return this.boardId;
} public void setBoardId(String boardId) {
this.boardId = boardId;
} public Brand getBrand() {
return this.brand;
} public void setBrand(Brand brand) {
this.brand = brand;
} public String getChipset() {
return this.chipset;
} public void setChipset(String chipset) {
this.chipset = chipset;
} public Set getConfigures() {
return this.configures;
} public void setConfigures(Set configures) {
this.configures = configures;
}}

Answer 4

我要的是hibernate annotation,不要用配置文件(xml)啊

Answer 5

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- 
    Mapping file autogenerated by MyEclipse Persistence Tools
-->
<hibernate-mapping>
    <class name="com.mmc.bean.Montherboard" table="montherboard" schema="dbo" catalog="computerdb" lazy="false">
        <id name="boardId" type="java.lang.String">
            <column name="board_id" length="32" />
            <generator class="uuid.hex" />
        </id>
        <many-to-one name="brand" class="com.mmc.bean.Brand" fetch="select">
            <column name="brand_id" length="32" not-null="true" />
        </many-to-one>
        <property name="chipset" type="java.lang.String">
            <column name="chipset" length="20" not-null="true" />
        </property>
        <set name="configures" inverse="true">
            <key>
                <column name="board_id" length="32" not-null="true" />
            </key>
            <one-to-many class="com.mmc.bean.Configure" />
        </set>
    </class>
</hibernate-mapping>---是否应该感谢我一下,我还是楼上的,由于csdn的限定,不能回复过三,所以就用了这个公共帐号.