javaarraylist和JDBC

您可以尝试：

public class UserBean<br>
{ 
 public String name; 
 public String role; 
} 

class Dao{ 
 ArrayList<UserBean> a = new ArrayList<UserBean>();
 String sql = "Select * from user";
 ResultSet rs = pStmt.executeQuery(sql);
 while(rs.next()){
 //----------Problem------------
 // i want to do something like<br>
  a.add[0].name = rs.getString("name");
  a.add[0].role = rs.getString("role");
 // Get column from resultset and set the value of userbean column
 }
}

您可以尝试：

public class UserBean<br>
{ 
 public String name; 
 public String role; 
} 

class Dao{ 
 ArrayList<UserBean> a = new ArrayList<UserBean>();
 String sql = "Select * from user";
 ResultSet rs = pStmt.executeQuery(sql);
 while(rs.next()){
 //----------Problem------------
 // i want to do something like<br>
  a.add[0].name = rs.getString("name");
  a.add[0].role = rs.getString("role");
 // Get column from resultset and set the value of userbean column
 }
}

创建UserBean实例并将其添加到列表中

创建UserBean实例并将其添加到列表中

抱歉，第9行是ArrayList a=新ArrayList；抱歉，第9行是ArrayList a=新ArrayList；

 while(rs.next()){
  UserBean bean=new UserBean();
  bean.name = rs.getString("name");
  bean.role = rs.getString("role");
  a.add(bean);
 // Get column from resultset and set the value of userbean column
 }