jsp 写文件!!
<%@ page contentType="text/html;charset=GB2312" %><%@ page import ="java.io.*" %>
<HTML>
<BODY>
<P> 在下面的表格输入成绩:
<FORM action="4_10.jsp" method=post name=form>
<Table align="CENTER" Border>
<TR>
<TH width=50> 姓名</TH>
<TH width=50> 数学</TH>
<TH width=50>英语</TH>
</TR>
<% int i=0;
while(i<=6)
{out.print("<TR>");
out.print("<TD>");
out.print("<INPUT type=text name=name value=姓名>");
out.print("</TD>");
out.print("<TD>");
out.print("<INPUT type=text name=math value=0>");
out.print("</TD>");
out.print("<TD>");
out.print("<INPUT type=text name=english value=0>");
out.print("</TD>");
out.print("</TR>");
i++;
}
%>
<TR>
<TD>
<INPUT type=submit name="g" value="写入成绩" >
</TD>
<TD> Math</TD>
<TD> English</TD>
</TR>
</Table>
</FORM>
<%
String name[]=request.getParameterValues("name");
String math[]=request.getParameterValues("math");
String english[]=request.getParameterValues("english");
try{ File f=new File("C:\\Tomcat 5.0\\webapps\\ROOT\\examples\\wx\\chap4\\Students","student.txt");
FileOutputStream o=new FileOutputStream(f);
DataOutputStream DataOut=new DataOutputStream(o);
for(int k=0;k<name.length;k++)
{DataOut.writeUTF(name[k]);
DataOut.writeUTF(math[k]);
DataOut.writeUTF(english[k]);
}
DataOut.close();
o.close();
}
catch(IOException e)
{ }
catch(NullPointerException ee)
{ }
%>
<P><BR>查看成绩单:
<A href=showresult.jsp><BR> 连接到成绩单页面>
</BODY>
</HTML>
高手来看下,为什么我运行这个程序的时候不可以写入TXT 文件中的,是不是我的代码有什么错误的~!!!!!解答下啊!!谢谢!!
搜索更多相关主题的帖子:
jsp 文件
----------------解决方案--------------------------------------------------------
抛异常了,还有 如果是中文写入文件的是乱码
<%@ page language="java" contentType="text/html; charset=gb2312"%>
<%@ page import="java.io.*" %>
<!doctype html public "-//w3c//dtd html 4.01 transitional//en" "http://www.w3.org/tr/html4/loose.dtd">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=gb2312">
<title>写文件</title>
</head>
<body>
<%
String name[] = request.getParameterValues("name");
String math[] = request.getParameterValues("math");
String english[] = request.getParameterValues("english");
try {
File f = new File("E:\\", "student.txt");
FileOutputStream o = new FileOutputStream(f);
DataOutputStream dataout = new DataOutputStream(o);
if(name != null && math != null && english != null) {
for (int k = 0; k < name.length; k++) {
dataout.writeUTF(new String(name[k].getBytes("iso8859-1"))
); dataout.writeUTF(math[k]);
dataout.writeUTF(english[k]);
}
}
dataout.close();
o.close();
} catch (IOException e) {
e.printStackTrace() ;
} catch (NullPointerException ex) {
ex.printStackTrace() ;
}
%>
在下面的表格输入成绩:
<form action="index.jsp" method="post" name="form">
<table align="center" border>
<tr>
<th width="50">姓名</th>
<th width="50">数学</th>
<th width="50">英语</th>
</tr>
<%
int i = 0;
while (i <= 6) {
out.print("<tr>");
out.print("<td>");
out.print("<input type=text name=name value=姓名>");
out.print("</td>");
out.print("<td>");
out.print("<input type=text name=math value=0>");
out.print("</td>");
out.print("<td>");
out.print("<input type=text name=english value=0>");
out.print("</td>");
out.print("</tr>");
i++;
}
%>
<tr>
<td><input type="submit" name="g" value="写入成绩"></td>
<td>math</td>
<td>English</td>
</tr>
</table>
</form>
<p><br>查看成绩单: <a href="showresult.jsp">连接到成绩单页面</a>
</body>
</html>
----------------解决方案--------------------------------------------------------
回复 2# guoxhvip 的帖子
谢谢,以后多多指教!!! ----------------解决方案--------------------------------------------------------