我有ToDoList应用程序...
我有使用update Table1 as tt1
SET CREATED_BY = tt1.NAME
FROM(
SELECT t1.ID, t3.NAME
FROM Table1 t1
INNER JOIN Table1_2_link t2 ON t1.id = t2.TABLE1_ID
INNER JOIN Table2 t3 ON t2.TABLE2_ID = t3.ID)
T
where T.ID = tt1.ID
方法的ToDo类（bean）
getToDoList我必须有toDoList控制器（Servlet）：
public static ResultSet getToDoList() {
try{
Class.forName("com.mysql.jdbc.Driver");
Connection con=DriverManager.getConnection
("jdbc:mysql://localhost:3306/taskmanagment?useSSL=false","root","1234");
Statement statement=con.createStatement();
ResultSet toDoListForUser=statement.executeQuery("SELECT * FROM taskmanagment.`user-todolist` where username='kiavash';");
return toDoListForUser;
}catch(Exception e){
e.printStackTrace();
}
return null;
}
，我想在 protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
ResultSet toDoList=ToDo.getToDoList();
HttpSession session = request.getSession();
try {
while(toDoList.next()){
session.setAttribute("toDoList",toDoList);
getServletContext()
.getRequestDispatcher("/dashboard.jsp")
.forward(request,response);
}
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
中显示toDoList(resultset)
我该如何使用表达语言做到这一点
感谢您的帮助