日期:2014-05-20  浏览次数:20819 次

求助啊,大虾们.Hibernate注解配置双向一对多报错.
第一个实体
Java code
/*
 * @(#)XyuNews.java        1.0 2011-9-14
 *
 * Copyright (c) 1998-2011 ChinaCache 
 * All rights reserved.
 *
 */

package com.smartdot.icm.models.xyu.model;






import java.io.Serializable;
import java.util.Date;
import java.util.HashSet;
import java.util.Set;

import javax.persistence.CascadeType;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;

import javax.persistence.OneToMany;
import javax.persistence.SequenceGenerator;
import javax.persistence.Table;

/**
 * 新闻信息,用来存储新闻的相关信息
 * 
 * @version 1.0 2011-9-14
 * @author Xyu
 * */

@Entity
@Table(name = "XyuNews", schema = "HL")
@SequenceGenerator(name = "seq", allocationSize = 1, sequenceName = "news_seq")
public class XyuNews implements Serializable {

    /*
     * 本类通过使用Hibernate注解来实现独享关系映射
     */

    /**
     * 新闻Id
     * */

    private Integer newsId;

    /**
     * 新闻标题
     * */

    private String newsTitle;

    /**
     * 新闻内容
     * */

    private String newsContent;

    /**
     * 新闻时间
     * */

    private Date newsWriteTime;

    /**
     * 新闻编写人
     * */

    private String newsWriteName;

    /**
     * 新闻备注
     * */

    private String newsRemarks;

    /**
     * 新闻的撰写人
     * */
    private Set<XyuNewsWrite> xyunewswrites = new HashSet<XyuNewsWrite>(0);
    

    @Id
    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "seq")
    public Integer getNewsId() {
        return newsId;
    }

    public void setNewsId(Integer newsId) {
        this.newsId = newsId;
    }

    public String getNewsTitle() {
        return newsTitle;
    }

    public void setNewsTitle(String newsTitle) {
        this.newsTitle = newsTitle;
    }

    public String getNewsContent() {
        return newsContent;
    }

    public void setNewsContent(String newsContent) {
        this.newsContent = newsContent;
    }

    public Date getNewsWriteTime() {
        return newsWriteTime;
    }

    public void setNewsWriteTime(Date newsWriteTime) {
        this.newsWriteTime = newsWriteTime;
    }

    public String getNewsWriteName() {
        return newsWriteName;
    }

    public void setNewsWriteName(String newsWriteName) {
        this.newsWriteName = newsWriteName;
    }

    public String getNewsRemarks() {
        return newsRemarks;
    }

    public void setNewsRemarks(String newsRemarks) {
        this.newsRemarks = newsRemarks;
    }
    
    @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.LAZY, mappedBy = "xyunews")
    public Set<XyuNewsWrite> getXyunewswrites() {
        return xyunewswrites;
    }

    public void setXyunewswrites(Set<XyuNewsWrite> xyunewswrites) {
        this.xyunewswrites = xyunewswrites;
    }



}


第二个实体
Java code
/*
 * @(#)XyuNewsWrite.java        1.0 2011-9-19
 *
 * Copyright (c) 1998-2011 ChinaCache 
 * All rights reserved.
 *
 */

package com.smartdot.icm.models.xyu.model;


import java.io.Serializable;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import javax.persistence.CascadeType;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.OneToMany;
import javax.persistence.SequenceGenerator;
import javax.persistence.Table;

/**
 * 新闻撰写人信息,用来存储撰写人的相关信息
 * 
 * @version 1.0 2011-9-19
 * @author Xyu
 * */

@Entity
@Table(name = "XyuNewsWrite")
@SequenceGenerator(name = "seq", allocationSize = 1, sequenceName = "news_write_seq")
public class XyuNewsWrite implements Serializable {

    /*
     * 本类通过使用Hibernate注解来实现独享关系映射
     */

    /**
     * 撰写人Id
     * */

    private Integer writeId;

    /**
     * 撰写人姓名
     * */

    private String writeName;

    /**
     * 撰写人性别
     * */

    private Integer writeSex;

    /**
     * 撰写人年龄
     * */

    private Integer writeAge;

    /**
     * 撰写人简历
     * */

    private String writeResume;

    /**
     * 撰写人今日得分
     * */

    private String writeScore;

    /**
     * 新闻ID 外键
     * */

    private XyuNews newsId;


    @Id
    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "seq")
    public Integer getWriteId() {
        return writeId;
    }

    public void setWriteId(Integer writeId) {
        this.writeId = writeId;
    }

    public String getWriteName() {
        return writeName;
    }

    public void setWriteName(String writeName) {
        this.writeName = writeName;
    }

    public Integer getWriteSex() {
        return writeSex;
    }

    public void setWriteSex(Integer writeSex) {
        this.writeSex = writeSex;
    }

    public Integer getWriteAge() {
        return writeAge;
    }

    public void setWriteAge(Integer writeAge) {
        this.writeAge = writeAge;
    }

    public String getWriteResume() {
        return writeResume;
    }

    public void setWriteResume(String writeResume) {
        this.writeResume = writeResume;
    }

    public String getWriteScore() {
        return writeScore;
    }

    public void setWriteScore(String writeScore) {
        this.writeScore = writeScore;
    }

    @ManyToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "NEWSID", nullable = false)
    public XyuNews getNewsId() {
        return newsId;
    }

    public void setNewsId(XyuNews newsId) {
        this.newsId = newsId;
    }





}