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У меня есть лист excel. Используя его информацию, я должен получить некоторые данные и сохранить их в таблице mysql.экспорт данных из excel в mysql
мой код:
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
<%@page import="java.io.IOException"%>
<%@page import="java.sql.SQLException"%>
<%@page import="cnn.sem_year_conversion"%>
<%@page import="org.apache.poi.ss.usermodel.Row"%>
<%@page import="org.apache.poi.hssf.usermodel.HSSFCell"%>
<%@page import="org.apache.poi.hssf.usermodel.HSSFRow"%>
<%@page import="org.apache.poi.hssf.usermodel.HSSFSheet"%>
<%@page import="org.apache.poi.hssf.usermodel.HSSFWorkbook"%>
<%@page import="org.apache.poi.poifs.filesystem.POIFSFileSystem"%>
<%@page import="java.util.Iterator"%>
<%@page import="java.io.FileInputStream"%>
<%@page import="java.util.ArrayList"%>
<%@page import="java.sql.PreparedStatement"%>
<%@page import="java.sql.Connection"%>
<%@page import="cnn.cn"%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<%
try
{
Connection con=cn.getcon();
PreparedStatement ps=null;
String name,f_name,branch="",enroll,status="regular",sem,elligible="";
int year= 0;
int flag;
int count=0;
con.setAutoCommit(false);
PreparedStatement pstm = null ;
FileInputStream input = new FileInputStream("C:/Users/intel/Documents/student_excel.xls");
POIFSFileSystem fs = new POIFSFileSystem(input); //creating a new poi reference to the given excel file
HSSFWorkbook wb = new HSSFWorkbook(fs);
HSSFSheet sheet = wb.getSheetAt(0);
Row row;
for(int i=1; i<=sheet.getLastRowNum(); i++)
{
//points to the starting of excel i.e excel first row
row = (Row) sheet.getRow(i); //sheet number
if(row.getCell(1)==null) { enroll = "0";} //suppose excel cell is empty then its set to 0 the variable
else enroll = row.getCell(1).toString(); //else copies cell data to name variable
if(row.getCell(2)==null) { name = "0";} //suppose excel cell is empty then its set to 0 the variable
else name = row.getCell(2).toString(); //else copies cell data to name variable
if(row.getCell(3)==null) { f_name = "0";} //suppose excel cell is empty then its set to 0 the variable
else f_name = row.getCell(3).toString(); //else copies cell data to name variable
if(row.getCell(5)==null) { sem = "0";} //suppose excel cell is empty then its set to 0 the variable
else sem = row.getCell(5).toString(); //else copies cell data to name variable
switch (sem) {
case "1":
case "2":
year=1;
break;
case "3":
case "4":
year=2;
break;
case "5":
case "6":
year=3;
break;
case "7":
case "8":
year=4;
break;
default:year=0;
}
if(row.getCell(6)==null) { elligible="0";} //suppose excel cell is empty then its set to 0 the variable
else elligible = row.getCell(6).toString(); //else copies cell data to elligible variable
if(elligible=="Submitted to RGPV"|| elligible=="Forwarded by RGPV")
flag=0;
else
flag=1;
if(enroll.contains("AU"))
branch="au";
else if(enroll.contains("EC"))
branch="ec";
else if(enroll.contains("CS"))
branch="cs";
else if(enroll.contains("CE"))
branch="ce";
else if(enroll.contains("IT"))
branch="it";
String query="insert into student values(?,?,0,3,?,?,?)";
ps=con.prepareStatement(query);
ps.setString(1, enroll);
ps.setString(2, name);
ps.setString(3, branch);
ps.setInt(4,year);
ps.setString(5, f_name);
ps.setString(6, status);
count=ps.executeUpdate();
}
//For checking data is inserted or not?
con.commit();
pstm.close();
con.close();
input.close();
if(count>0)
System.out.println("Successful import of excel to mysql table");
else
System.out.println("Import Failed.");
}
catch(SQLException ex){
out.println(ex);
}catch(IOException ioe)`{
out.println(ioe);
}
%>
</body>
</html>
Но это порождает следующую ошибку ---
HTTP Status 500 - Internal Server Error
type Exception report
messageInternal Server Error
descriptionThe server encountered an internal error that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: PWC6033: Error in Javac compilation for JSP
PWC6199: Generated servlet error:
source value 1.5 is obsolete and will be removed in a future release
PWC6199: Generated servlet error:
target value 1.5 is obsolete and will be removed in a future release
PWC6199: Generated servlet error:
To suppress warnings about obsolete options, use -Xlint:-options.
PWC6197: An error occurred at line: 32 in the jsp file: /student_info.jsp
PWC6199: Generated servlet error:
strings in switch are not supported in -source 1.5
(use -source 7 or higher to enable strings in switch)
note The full stack traces of the exception and its root causes are available in the GlassFish Server Open Source Edition 4.0 logs.
GlassFish Server Open Source Edition 4.0
Я использовал строки в переключатель случае, поскольку на использовании INT он дает exception-
org.apache.jasper.JasperException: java.lang.NumberFormatException: For input string: "1.0"
Как это решить?
Что вы попытались исправить эту ошибку? –
Я не понял ошибку, так что я не смог ее решить – Archi
Является ли эта ошибка из вашего текущего кода? Какая линия? Полная ошибка стека ошибок? Какова была ошибка с версией «int»? Какой jdk вы используете? –