Question

<%
      String emi1;  
      String repo1;
      String arr1;
      String reso1;
      String pi1;           
      emi1=request.getParameter("e"+count);  
      repo1=request.getParameter("repo"+count);
      arr1=request.getParameter("a"+count);
      reso1=request.getParameter("r"+count);
      pi1=request.getParameter("pi"+count);           

      if(emi1!=null && repo1!=null && arr1!=null && reso1!=null && pi1!=null)
      {
          String ReserveDt = request.getParameter("ReserveDate");    
          System.out.println(emi1);
          System.out.println(repo1);
          System.out.println(arr1);
          System.out.println(reso1);
          System.out.println(pi1);
          System.out.println(ReserveDt);
          String sql=("BEGIN DECLARE @DT DATE;DECLARE @CIR NVARCHAR(2);SET @CIR='"+circle+"' DECLARE @MON NVARCHAR(2); DECLARE @DAY NVARCHAR(2); "
                 +"DECLARE @YEAR NVARCHAR(4);DECLARE @curr NVARCHAR(50); DECLARE @reg nvarCHAR(3);"
                 +"set @reg='"+utype+"' SET @DT='"+ReserveDt+"' SET @day=(SELECT DATEPART(day,@DT)) "
                 +"SET @MON=(SELECT DATEPART(month,@DT)) SET @year=(SELECT DATEPART(year,@DT)) "
                 +"SET @curr=@reg+convert(nvarchar(2),@DAY)+convert(nvarchar(2),@MON)+convert(nvarchar(4),@YEAR)+CONVERT(NVARCHAR(2),@CIR) "
                 +"INSERT INTO [DCRA].[dbo].[SAM]([REGION],[CIRCLE],[TOTAL],[EMI],[REPO],[REPO ARREAR],[RES],[CURR_DATE],[PI],[DATAID]) "
                 +"VALUES (@reg,@CIR,0.24,"+emi1+","+repo1+","+arr1+","+reso1+",'"+ReserveDt+"',"+pi1+",@curr) end");
          System.out.println(sql);
          stmt=con.createStatement();
          stmt.executeUpdate(sql);
          System.out.println(sql);
          if("stmt"!=null)
          {
              response.sendRedirect("Add.jsp");
          }
      }
      count++;    
      System.out.println(count+"my count");   
  }
}
catch(Exception e)
{   
    %>
    <script type="text/javascript">
        alert("Data is alredy insert or please check your data!");   
    </script>    
    <%    
    e.printStackTrace();
}
%>

我是jsp的新手，我将值插入表中，那时它给了我错误。我在add.jsp.how中显示数据已成功添加以解决此问题。请帮助我解决此问题。

Answer 1

我没有找到你的尝试块而没有尝试你也无法捕捉到正确的异常把这一行放在你的代码中

System.out.println(e.toString());

以便您获得正确的例外

如何避免IllegalStateException

1 个答案: