JSP JAVABEAN 的有关问题
日期：2014-05-18 浏览次数：20678 次
JSP JAVABEAN 的问题
JSP文件代码如下 <%@ page contentType= "text/html;charset=GB2312 "%>
<html>
<head> <title> 读取文件 </title> </head>
<body bgcolor= "white ">
<jsp:useBean id= "file_reader " class= "fileReader " scope= "session "/>
<jsp:setProperty name= "file_reader " property= "fileName " />
<% if (file_reader.getFileName() != " ") { %>
文件[ ' <% out.println(file_reader.getFileName()); %> ']内容 : <br> <br>
<% if (file_reader.getContent() != null) { %>
<Form>
<TEXTAREA rows= <%= file_reader.getRows() %> cols= <%= file_reader.getColumns() %> id=textarea1 name=textarea1>
<% out.println(file_reader.getContent()); %>
</TEXTAREA>
</Form>
<% } else { %>
<% out.println(file_reader.getErrorMessage()); %>
<% } %>
<br> <br>
<% file_reader.reset(); %>
<a href= "fileReader.jsp "> 读取另外的文件 </a>
<% } else { %>
读取文件内容的例子。
<form method=get>
输入文件名: <input type=text name=fileName>
<input type=submit value= "读取文件内容 ">
</form>
<% } %>
</font>
</body>
</html>
错误代码如下
org.apache.jasper.JasperException: Unable to compile class for JSP:
An error occurred at line: 5 in the jsp file: /test/fileReader.jsp
fileReader cannot be resolved to a type
2: <html>
3: <head> <title> 读取文件 </title> </head>
4: <body bgcolor= "white ">
5: <jsp:useBean id= "file_reader " class= "fileReader " scope= "session "/>
6: <jsp:setProperty name= "file_reader " property= "fileName " />
7:
8: <% if (file_reader.getFileName() != " ") { %>
An error occurred at line: 5 in the jsp file: /test/fileReader.jsp
fileReader cannot be resolved to a type
2: <html>
3: <head> <title> 读取文件 </title> </head>
4: <body bgcolor= "white ">
5: <jsp:useBean id= "file_reader " class= "fileReader " scope= "session "/>
6: <jsp:setProperty name= "file_reader " property= "fileName " />
7:
8: <% if (file_reader.getFileName() != " ")
JSP文件代码如下 <%@ page contentType= "text/html;charset=GB2312 "%>
<html>
<head> <title> 读取文件 </title> </head>
<body bgcolor= "white ">
<jsp:useBean id= "file_reader " class= "fileReader " scope= "session "/>
<jsp:setProperty name= "file_reader " property= "fileName " />
<% if (file_reader.getFileName() != " ") { %>
文件[ ' <% out.println(file_reader.getFileName()); %> ']内容 : <br> <br>
<% if (file_reader.getContent() != null) { %>
<Form>
<TEXTAREA rows= <%= file_reader.getRows() %> cols= <%= file_reader.getColumns() %> id=textarea1 name=textarea1>
<% out.println(file_reader.getContent()); %>
</TEXTAREA>
</Form>
<% } else { %>
<% out.println(file_reader.getErrorMessage()); %>
<% } %>
<br> <br>
<% file_reader.reset(); %>
<a href= "fileReader.jsp "> 读取另外的文件 </a>
<% } else { %>
读取文件内容的例子。
<form method=get>
输入文件名: <input type=text name=fileName>
<input type=submit value= "读取文件内容 ">
</form>
<% } %>
</font>
</body>
</html>
错误代码如下
org.apache.jasper.JasperException: Unable to compile class for JSP:
An error occurred at line: 5 in the jsp file: /test/fileReader.jsp
fileReader cannot be resolved to a type
2: <html>
3: <head> <title> 读取文件 </title> </head>
4: <body bgcolor= "white ">
5: <jsp:useBean id= "file_reader " class= "fileReader " scope= "session "/>
6: <jsp:setProperty name= "file_reader " property= "fileName " />
7:
8: <% if (file_reader.getFileName() != " ") { %>
An error occurred at line: 5 in the jsp file: /test/fileReader.jsp
fileReader cannot be resolved to a type
2: <html>
3: <head> <title> 读取文件 </title> </head>
4: <body bgcolor= "white ">
5: <jsp:useBean id= "file_reader " class= "fileReader " scope= "session "/>
6: <jsp:setProperty name= "file_reader " property= "fileName " />
7:
8: <% if (file_reader.getFileName() != " ")
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