jsp 写文件！！ - 编程论坛

guoxhvip2008-10-23 22:22

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="*" %>
<!doctype html public "-//w3c//dtd html 4.01 transitional//en" "http://www.
<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>