1
這與我最近的問題關係......證日期在DAO參數和Servlet
在這種情況下,我有我的DAO和servlet,現在我想通過之日起(活動日期)作爲參數傳遞給我的查詢。我在哪裏可以做到這一點?
部分我的servlet的
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
SimpleDateFormat df=new SimpleDateFormat("yyyy-MM-DD");
String username = request.getParameter("username");
String name = request.getParameter("name");
String dateto = request.getParameter("dateto");
try
{
List prodlistsearch_array = this.pdtDAO.prodlistsearch(name);
request.setAttribute("prodlistsearch_array", prodlistsearch_array);
request.getRequestDispatcher("events_audit.jsp").forward(request, response);
} catch (SQLException e) {
throw new ServletException("Cannot retrieve areas", e);
}
部分吾道
public List<pdtBean> prodlistsearch(String name) throws SQLException{
Connection connection = null;
PreparedStatement statement = null;
ResultSet resultSet = null;
String querystring = "select * from mydb where name = ? and event_date between ? and ?";
List<pdtBean> prodlistsearch_array = new ArrayList<pdtBean>();
try {
connection = database.getConnection();
statement = connection.prepareStatement(querystring);
statement.setString(1, name);
resultSet = statement.executeQuery();
while (resultSet.next()) {
pdtBean prodlistsearcharray = new pdtBean();
prodlistsearcharray.setId(resultSet.getString("id"));
prodlistsearcharray.setEvent_date(resultSet.getString("event_date"));
prodlistsearcharray.setTitle(resultSet.getString("title"));
prodlistsearch_array.add(prodlistsearcharray);
}
} finally {
try { resultSet.close(); } catch (SQLException logOrIgnore) {}
try { statement.close(); } catch (SQLException logOrIgnore) {}
try { connection.close(); } catch (SQLException logOrIgnore) {}
}
return prodlistsearch_array;
}
我真的很希望'try {connection.close(); } catch(SQLException logOrIgnore){}'只是一個僞代碼! – adarshr
我可以知道爲什麼嗎? – toink