我正在编写一个集成测试,我将把一些对象插入数据库,然后检查以确定我的方法是否检索这些对象.
我与数据库的连接是通过NHibernate ...而我创建这样一个测试的常用方法是执行以下操作:
NHibernateSession.BeginTransaction();
//use nhibernate to insert objects into database
//retrieve objects via my method
//verify actual objects returned are the same as those inserted
NHibernateSession.RollbackTransaction();
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但是,我最近发现了TransactionScope,它显然可以用于这个目的......
public static int AddDepartmentWithEmployees(Department dept)
{
int res = 0;
DepartmentAdapter deptAdapter = new DepartmentAdapter();
EmployeeAdapter empAdapter = new EmployeeAdapter();
using (TransactionScope txScope = new TransactionScope())
{
res += deptAdapter.Insert(dept.DepartmentName);
//Custom method made to return Department ID
//after inserting the department "Identity Column"
dept.DepartmentID = deptAdapter.GetInsertReturnValue(); …Run Code Online (Sandbox Code Playgroud) 这是我的事务范围源代码的当前体系结构.第三个插件抛出.NET异常(不是SQL异常),它不会回滚前两个插入语句.我做错了什么?
编辑: 我从insert2和insert3中删除了try/catch.我还从insert1 try/catch中删除了异常处理实用程序并放入"throw ex".它仍然不会回滚事务.
编辑2:我在Insert3方法中添加了try/catch,并在catch语句中添加了"throw".它仍然不会回滚事务.
更新:根据我收到的反馈,"SqlHelper"类使用SqlConnection对象建立与数据库的连接,然后创建一个SqlCommand对象,将CommandType属性设置为"StoredProcedure"并调用SqlCommand的ExecuteNonQuery方法.
我也没有将Transaction Binding = Explicit Unbind添加到当前连接字符串.我将在下一次测试中添加它.
public void InsertStuff()
{
try
{
using(TransactionScope ts = new TransactionScope())
{
//perform insert 1
using(SqlHelper sh = new SqlHelper())
{
SqlParameter[] sp = { /* create parameters for first insert */ };
sh.Insert("MyInsert1", sp);
}
//perform insert 2
this.Insert2();
//perform insert 3 - breaks here!!!!!
this.Insert3();
ts.Complete();
}
}
catch(Exception ex)
{
throw ex;
}
}
public void Insert2()
{
//perform insert 2
using(SqlHelper sh …Run Code Online (Sandbox Code Playgroud) 我有这样的代码:
try
{
using (TransactionScope scope = new TransactionScope())
{
some_db_function();
for (i = 0; i < 10; i++)
{
some_other_db_function();
}
scope.Complete();
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message + " all done transactions will rollback");
}
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在db函数内部发生这样的事情:
private void some_db_functions()
{
using (TransactionScope scope = new TransactionScope())
{
//some processing on db
scope.Complete();
}
}
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假设数据库事务中存在任何问题,例如在函数中插入或更新错误; 到目前为止已经完成的所有事务都被回滚.但它并不像那样工作; 虽然它抛出异常并且scope.Complete()父函数永远不会被触发,但仍然没有任何东西被回滚.
问题出在哪儿?