ResultSet连续通过Statement赋值，会出现错误

　　ResultSet连续通过Statement赋值，会出现错误

　　错误提示：jdbc Operation not allowed after ResultSet closed

　　

public Task[] getTaskInfo(String a_id){
        Task[] task = null;
        Connection conn = null;
        Statement stmt = null;
        ResultSet rs1 = null;
        ResultSet rs2 = null;
        try{
            Class.forName("com.mysql.jdbc.Driver");
            conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/p_note","root","root");
            stmt = conn.createStatement();
            String sql = "select count(*) from tasks";
            String sql2 = "select * from tasks" ;
            rs1 = stmt.executeQuery(sql);
            rs2 = stmt.executeQuery(sql2);
            int count = 0;
            while(rs1.next()){
                count = rs1.getInt(1);
            }
            task = new Task[count];
            int i=0;
            while(rs2.next()){
                task[i] = new Task();
                task[i].setA_id(a_id);
                task[i].setT_id(rs2.getString("t_id"));
                task[i].setExecuteTime("t_time");
                task[i].setExecuteSite(rs2.getString("t_site"));
                task[i].setItemName(rs2.getString("t_items"));
                task[i].setSetout(rs2.getString("t_setout"));
                task[i].setT_createTime(rs2.getString("t_createTime"));
                task[i].setT_stamp(rs2.getString("t_stamp"));
                task[i].setT_stick(rs2.getString("t_stick"));
                i++;
            }
            
        }catch(Exception ex){
            ex.printStackTrace();
            
        }finally{
            try{
                if(conn != null){
                    conn.close();
                }
                if(stmt != null){
                    stmt.close();
                }
                if(rs1 != null){
                    rs1.close();
                }
                if(rs2 != null){
                    rs2.close();
                }
            }catch(Exception ex){
                ex.printStackTrace();
            }
        }
       
        return task;
    }

　　红色标记部分会出现错误

　　

　　原因：数据库提供的方法中，当再次用相同的Statement对ResultSet赋值时，会有个判断 if(ReslutSet != null) {}.在这个方法里面，rs1会被关掉。所以就存在了以上的问题。jdbc Operation not allowed after ResultSet closed