统一异常处理类

public class CommonException extends Exception
{

public CommonException(int errorCode, String errorMessage)
{
_errorCode = errorCode;
_errorMessage = errorMessage;
}

public int getErrorCode ()
{
return _errorCode;
}

public String getErrorMessage ()
{
return _errorMessage;
}

/**
* @return Returns the rootException.
*/
public Exception getRootException ()
{
return _rootException;
}
/**
* @param rootException The rootException to set.
*/
public void setRootException ( Exception rootException )
{
_rootException = rootException;
}

/**
* The Business Exception's coding
*/
public static final int BUSINESS_EXCEPTION = 2;

/**
* The Data Base Exception's coding
*/
public static final int DATABASE_EXCEPTION = 1;

/**
* 格式化错误
*/
public static final int FORMAT_EXCEPTION = 4;

/**
* 数据冲突错误
*/
public static final int DATACONFLICT_EXECPTION=5;

/**
* 数据不存在错误
*/
public static final int DATAINEXISTENCE_EXCEPTION=6;

/**
* 数据类型转换错误
*/
public static final int CONVERSION_EXCEPTION=7;

/**
* The Security Exception's coding
*/
public static final int SECURITY_EXCEPTION = 3;
/**
* The Unkonw Exception's coding
*/
public static final int UNKONW_EXCEPTION = -1;
private int _errorCode;
private String _errorMessage = null;

private Exception _rootException;
}