Batch update returned unexpected row count from update [0]; actual row count: 0;

引用

把发开过程中碰到的BUG累积下来也是一笔财富。
网络收集：
Batch update returned unexpected row count from update [0]; actual row count: 0; expected: 1
不注意的话，还真的有点无所适从，Batch update returned unexpected row count from update [0]; actual row count: 0; expected: 1这个异常是由于主键设置为自增长，而在我们插入记录的时候设置了ID的值导致的。
Hibernate 注释@OneToOne 建立表关联实例

我的解决方案：
我是在做One-To-One级联 添加/更新 碰到的，开始还以为是我配置错误，后面经过仔细排查，发现是我在页面上写了子表ID的隐藏表单域，传到后面的时候value="" ,不是value=null，所以执行的时候hibernate判断为更新，所以报错了。我的解决方案是把ID单独传到后台，然后用代码判断是否为空，然后进行更新或者增加。

下面是我的代码：
TranOrders.java(父类)：

@Entity
@Table(name = "TSPRO_TRAN_ORDERS")
public class TranOrders implements java.io.Serializable {

	// Fields    
	private TranItem tranItem;
	private TranCar tranCar;

	/** default constructor */
	public TranOrders() {
	}


	@OneToOne(cascade=CascadeType.ALL,mappedBy="tranOrders",fetch=FetchType.LAZY,optional = true) 
	@JoinColumn(name="id",unique=true) 
	public TranItem getTranItem() {
		return tranItem;
	}

	public void setTranItem(TranItem tranItem) {
		this.tranItem = tranItem;
	}

	@OneToOne(cascade=CascadeType.ALL,mappedBy="tranOrders",fetch=FetchType.LAZY,optional = true) 
	@JoinColumn(name="id",unique=true) 
	public TranCar getTranCar() {
		return tranCar;
	}

	public void setTranCar(TranCar tranCar) {
		this.tranCar = tranCar;
	}

 
}

TranItem.java(子类)

@Entity
@Table(name = "TSPRO_TRAN_ITEM")
public class TranItem implements java.io.Serializable {

	// Fields    
	private TranOrders tranOrders;

	@OneToOne(fetch = FetchType.LAZY,optional=false)
	@JoinColumn(name = "TSP_ID",unique=true)
	public TranOrders getTranOrders() {
		return this.tranOrders;
	}

	public void setTranOrders(TranOrders tranOrders) {
		this.tranOrders = tranOrders;
	}
}

TranCar.java(子类)

@Entity
@Table(name = "TSPRO_TRAN_CAR")
public class TranCar implements java.io.Serializable {

	// Fields    
	private TranOrders tranOrders;
 
	@OneToOne(fetch = FetchType.LAZY,optional=false)
	@JoinColumn(name = "TSP_ID",unique=true)
	public TranOrders getTranOrders() {
		return this.tranOrders;
	}

	public void setTranOrders(TranOrders tranOrders) {
		this.tranOrders = tranOrders;
	}
}

Action(调用):

public String saveTranOrders() {
		String tranItemId=super.getRequest().getParameter("tranItemId");
		String tranCarId=super.getRequest().getParameter("tranCarId");
		String loginUserId = (String) getSession().getAttribute(Constant.LOGIN_USER_ID);
		
		//时间转换
		String loadSort=super.getRequest().getParameter("loadSort");
		String reachTime=super.getRequest().getParameter("reachTime");
		String wzdTime=super.getRequest().getParameter("wzdTime");
		
		SimpleDateFormat sdf=new SimpleDateFormat("yyyy年MM月dd日HH时");
		
		
		try {
			if(tranOrders!=null){
				tranOrders.setLoadSort(new Timestamp(sdf.parse(loadSort).getTime()));
				tranOrders.setReachTime(new Timestamp(sdf.parse(reachTime).getTime()));
				tranOrders.setWzdTime(new Timestamp(sdf.parse(wzdTime).getTime()));
				if(BeanUtils.isNotEmpty(tranItemId)){
					tranItem.setId(tranItemId);
				}
				if(BeanUtils.isNotEmpty(tranCarId)){
					tranCar.setId(tranCarId);
				}
				
				tranCar.setTranOrders(tranOrders);
				tranOrders.setTranCar(tranCar);
				
				tranItem.setTranOrders(tranOrders);
				tranOrders.setTranItem(tranItem);
				
				if(BeanUtils.isNotEmpty(tranOrders.getId())){
					tranOrders.setUpdateBy(loginUserId);
					tranOrders.setUpdateDate(new Timestamp(System.currentTimeMillis()));
					tranOrdersManager.update4ClearCurrSession(tranOrders);
				}
				
				tranOrders.setCreateBy(loginUserId);
				tranOrders.setCreateDate(new Timestamp(System.currentTimeMillis()));
				tranOrdersManager.save(tranOrders);
				writerPrint("1");
			}else
			writerPrint("0");
		} catch (Exception e) {
			e.printStackTrace();
			writerPrint("2");
		}
		return NONE;

	}