文件操作的问题(jsp的)
[javac] since fork is true, ignoring compiler setting.
[javac] compiling 1 source file
[javac] since fork is true, ignoring compiler setting.
[javac] f:\tomcat 4.1\work\standalone\localhost\examples\listfile_jsp.java:69: illegal start of expression
[javac]
[javac] ^
[javac] f:\tomcat 4.1\work\standalone\localhost\examples\listfile_jsp.java:50: cannot resolve symbol
[javac] symbol : class listfile
[javac] location: class org.apache.jsp.listfile_jsp
[javac] listfile file = null;
[javac] ^
[javac] f:\tomcat 4.1\work\standalone\localhost\examples\listfile_jsp.java:52: cannot resolve symbol
[javac] symbol : class listfile
[javac] location: class org.apache.jsp.listfile_jsp
[javac] file = (listfile) pagecontext.getattribute("file", pagecontext.page_scope);
[javac] ^
[javac] f:\tomcat 4.1\work\standalone\localhost\examples\listfile_jsp.java:55: cannot resolve symbol
[javac] symbol : class listfile
[javac] location: class org.apache.jsp.listfile_jsp
[javac] file = (listfile) java.beans.beans.instantiate(this.getclass().getclassloader(), "listfile");
[javac] ^
[javac] f:\tomcat 4.1\work\standalone\localhost\examples\listfile_jsp.java:71: cannot resolve symbol
[javac] symbol : variable name
[javac] location: class org.apache.jsp.listfile_jsp
[javac] for(int i=0;i"+name[i]);
[javac] ^
[javac] 6 errors
下面三个文件
import java.io.*;
class filename implements filenamefilter
{
string str-null;
filename(string s)
{
str="."+s;
}
public boolean accept(file dir,string name)
{
return name.endswith(str);
}
}
import java.io.*;
public class listfile
{
string extendsname=null;
public void setextendsname(string s)
{
extendsname=s;
}
public string getextendsname()
{
return extendsname;
}
public string[] listfile()
{
file dir=new file("f:/tomcat 4.1/webapps/examples");
filename file_jsp=new filename(extendsname);
string file_name[]=dir.list(file_jsp);
return file_name;
}
}
<%@ page contenttype="text/html; charset=gb2312" %>
<%@ page import="circle" %>
<html>
<body>
<form action="" method="post">
<p>输入文件的扩展名:
<input type=text name="extendsname">
<input type=submit value="提交">
<jsp:usebean id="file" class="listfile" scope="page" >
</jsp:usebean>
<jsp:setproperty name="file" property="extendsname" />
文件有:
<%
<br>
string name[]=file.listfile();
for(int i=0;i<name.length;i++)
{
out.println("<br>"+name[i]);
}
%>
</body>
</html>
那有问题
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