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梁宝平
2008-07-07
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try {
SmartUpload su = new SmartUpload();
su.initialize(pageContext.getServletConfig(),request,response);
su.setContentDisposition(null);
su.downloadFile("a.txt");
} catch (Exception e) {
e.printStackTrace();
}
这个是我写得下载文件的代码，但是老是报：getOutputStream() has already been called for this response
的错误呀，谁可以帮我解决吗？？？？？？？
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libo Li
2008-07-02
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能请你帮个忙吗?
在JavaScript中,我用clearTimeout(t);[var t=setTimeout("fun()",time)]关闭了计时器之后要怎样才能吧它再打开呀?
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wang66
2008-05-04
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美女：帮我个忙，我刚学习JSP
CarBean.java如下：
package Car;
public class CarBean{
public CarBean(){
}
private String maker="Benz";
public String getMaker(){
return maker;
}
public void setMaker(String maker){
this.maker=maker;
}
}
CarBean.jsp如下：
<%@ page contentType="text/html; charset=GBK" language="java" import="java.util.*"import="java.sql.*" %>
<%@ page import="CarBean" %>
<html>
<head>
<title>javaBean的使用</title>
</head>
<body>
<h2>javaBean的一个使用</h2>0
<% CarBean myCar=new CarBean();%>
我有一辆<%=myCar.getMaker()%><br />
<% myCar.setMaker("Ferrari");%>
现在我有一辆<%=myCar.getMaker()%><br />
</body>
</html>
运行后的错误：
org.apache.jasper.JasperException: Unable to compile class for JSP:
An error occurred at line: 8 in the generated java file
The import CarBean cannot be resolved
An error occurred at line: 10 in the jsp file: /MyJsp_Web/jsp/CarBean.jsp
CarBean cannot be resolved to a type
8: <body>
9: <h2>javaBean的一个使用</h2>0
10: <% CarBean myCar=new CarBean();%>
11: 我有一辆<%=myCar.getMaker()%><br />
12: <% myCar.setMaker("Ferrari");%>
13: 现在我有一辆<%=myCar.getMaker()%><br />
大哥小姐们，帮帮忙。不胜感激啊！！！
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郭永兵
2008-04-20
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很想学习.net等考试完了向你请教吧