Question

我编写了2个JSP代码，用于将我的csv文件加载到我的 mysql数据库中，但我不知道为什么csv文件的数据显示在我的eclipse的控制台中而不是数据库中帮我，谢谢你

1ér代码

  <%@ page language="java" %>
<HTml>
<HEAD><TITLE>Display file upload form to the user</TITLE></HEAD> 

<BODY>
<FORM ENCTYPE="multipart/form-data" ACTION="b.jsp" METHOD=POST>
<br><br><br>
<center><table border="2" >
<tr><td colspan="2"><p align=
"center"><B>UPLOAD THE FILE</B><center></td></tr>
<tr><td><b>Choose the file To Upload:</b>
</td>
<td><INPUT NAME="file" TYPE="file"></td></tr>
<tr><td colspan="2">
<p align="right"><INPUT TYPE="submit" VALUE="Send File" ></p></td></tr>
<table>

</BODY>
</HTML>

2éme代码

<%@ page import="java.io.*,java.sql.*" %>
<html>
<%
String contentType = request.getContentType();
if ((contentType != null) && (contentType.indexOf("multipart/form-data") >= 0)) {
DataInputStream in = new DataInputStream(request.getInputStream());
int formDataLength = request.getContentLength();
byte dataBytes[] = new byte[formDataLength];
int byteRead = 0;
int totalBytesRead = 0;

while (totalBytesRead < formDataLength) {
byteRead = in.read(dataBytes, totalBytesRead, formDataLength);
totalBytesRead += byteRead;
}
String file = new String(dataBytes);
String saveFile = file.substring(file.indexOf("filename=\"") + 10);
System.out.println("saveFile=" + saveFile);
saveFile = saveFile.substring(saveFile.lastIndexOf("\\")+ 1,saveFile.indexOf("\""));
System.out.println("saveFile" + saveFile);
saveFile = file.substring(file.indexOf("filename=\"") + 10);
saveFile = saveFile.substring(0, saveFile.indexOf("\n"));
saveFile = saveFile.substring(saveFile.lastIndexOf("\\")+ 1,saveFile.indexOf("\""));
int lastIndex = contentType.lastIndexOf("=");
String boundary = contentType.substring(lastIndex + 1,contentType.length());
int pos;

pos = file.indexOf("filename=\"");
pos = file.indexOf("\n", pos) + 1;
pos = file.indexOf("\n", pos) + 1;
pos = file.indexOf("\n", pos) + 1;
int boundaryLocation = file.indexOf(boundary, pos) - 4;
int startPos = ((file.substring(0, pos)).getBytes()).length;
int endPos = ((file.substring(0, boundaryLocation)).getBytes()).length;

FileOutputStream fileOut = new FileOutputStream(saveFile);
fileOut.write(dataBytes, startPos, (endPos - startPos));
%>
<b>File <% out.println(saveFile); %> has been uploaded and inserted into Database.</b>
<%Connection con=null;
Statement pst=null;
String line = null;
String value=null;
try{
StringBuilder contents = new StringBuilder();
BufferedReader input = new BufferedReader(new FileReader(saveFile));
while (( line = input.readLine()) != null){
contents.append(line);
}
value = contents.toString();
System.out.println("Value:"+value);
Class.forName("com.mysql.jdbc.Driver");
con=DriverManager.getConnection
   ("jdbc:mysql://localhost:3306/b","root",""); 
pst=con.createStatement();
int val = pst.executeUpdate("insert into fic values('"+value+"')");
}
catch(Exception e)
{}
}
%>

将CSV文件上传到Mysql数据库

0 个答案: