如何将存储过程传递给servlet并使用java从数据库中获取数据

Question

在我的应用程序中，我通过阅读打开的办公室电子表格将数据插入数据库，我需要通过将存储过程传递给我的 servlet 来获取插入的数据，下面是我尝试检索数据但它没有的完整 servlet 代码工作。任何人都可以帮助我，因为我是新手

我的存储过程参数

Procedure Name- Users
Procedure parameters-@fromdate,@todate,@users

Servlet 代码-

protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
try
{
SQLServerDataSource ds = new SQLServerDataSource();
Connection conn=null;
ds.setUser("");
ds.setPassword("");
ds.setServerName("");
ds.setDatabaseName(""); 
conn = ds.getConnection(); 
conn.setAutoCommit(true);
Statement st=conn.createStatement();
System.out.println("Connected!");
//getting the from date ,to date and selected users into string parameters  
String users[] = request.getParameterValues("comments") ;
String FromDate = request.getParameter("pickedDate");
String ToDate = request.getParameter("pickedDate1");
PrintWriter writer = response.getWriter();
response.setContentType("text/html");
writer.println("<h4>You are selected :</h4>");
for(String selecteduser :users)
{
writer.println("<br><font color=black>"+selecteduser+"</font>");
}
ArrayList al = null;
ArrayList pid_list = new ArrayList();

//stored procedure
String query = ""dbo.users", "@fromdate", FromDate , "@Todate", ToDate , "@Users",users[]";



writer.close();
}
catch(Exception exception)
{
exception.printStackTrace(); 
}
}

Answer 1

使用下面的示例并检查

myStoredProcedureCall = 
    sybConn.prepareCall("{call my_stored_procedure (?, ?, ?, ?, ?, ? , ?, ?, ?)}");
    myStoredProcedureCall.setString(1, "ONE");
    myStoredProcedureCall.setString(2, "TWO");
    myStoredProcedureCall.setString(9, "NINE");
    ResultSet paramResults = myStoredProcedureCall.executeQuery();