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servlet读取directory的基本问题

servlet读取directory的基本问题# Java - 爪哇娇娃

r*h2010-02-23 08:02

1 楼

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e*62010-02-23 08:02

2 楼

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f*n2010-02-23 08:02

3 楼

jboss做server，最基本的servlet，想列出诸如／subfolder1下所有文件
用File f1 = new File("/subfolder1")，但f1.isDirectory()returns false。。。
从而没法再运行list()。
请问应该怎么做？谢谢。。。

t*e2010-02-23 08:02

4 楼

这个和Servlet没什么关系。搞清Java IO的基本操作就可以了。确保path is valid.

f*n2010-02-23 08:02

5 楼

谢谢，path没有问题，但是有没有什么security设定啊，现在在浏览器里输入
／subfolder1／file.txt可以显示下载，但是输入／subfolder1则显示找不到。。。

【在 t*******e 的大作中提到】

: 这个和Servlet没什么关系。搞清Java IO的基本操作就可以了。确保path is valid.

t*e2010-02-23 08:02

6 楼

You are confused between the directory listing feature of web servers, and
Java IO streaming.

f*n2010-02-23 08:02

7 楼

thanks... I guess so but cannot find any examples. I followed this but
failed:
http://www.javajunkies.org/index.pl?node_id=3568&lastnode_id=41

【在 t*******e 的大作中提到】

: You are confused between the directory listing feature of web servers, and
: Java IO streaming.

c*g2010-02-23 08:02

8 楼

I think full path should be used in java servlets.
my codes for your reference:
static final String USER_DIR = "C:\\users\\";
static final String WORK_DIR = "C:\\work\\";
they have been really working on tomcat on Windows.

c*g2010-02-23 08:02

9 楼

also try File f1 = new File("/subfolder1/");
"/subfolder1" -->"./subfolder1/"

g*g2010-02-23 08:02

10 楼

I think you are confused with relative path. For path
used in web app, normally you have 2 choices.
1. Pass in a root web app directory as a property to the app
2. Use classpath resource and keep your files in $App/classes
That way, you achieve portability.

【在 f*n 的大作中提到】

: 谢谢，path没有问题，但是有没有什么security设定啊，现在在浏览器里输入
: ／subfolder1／file.txt可以显示下载，但是输入／subfolder1则显示找不到。。。

f*n2010-02-23 08:02

11 楼

明白一点了。也就是说，choice 1需要给出app在server的local directory path是吧。
谢谢。。。

【在 g*****g 的大作中提到】

: I think you are confused with relative path. For path
: used in web app, normally you have 2 choices.
: 1. Pass in a root web app directory as a property to the app
: 2. Use classpath resource and keep your files in $App/classes
: That way, you achieve portability.

g*g2010-02-23 08:02

12 楼

You can put a properties file in classes folder and
configure it whatever way you want.
Typically web application will load some properties file
to do config in startup.

吧。

【在 f*n 的大作中提到】

: 明白一点了。也就是说，choice 1需要给出app在server的local directory path是吧。
: 谢谢。。。

f*n2010-02-23 08:02

13 楼

试了一下明白了。谢谢。

【在 g*****g 的大作中提到】

: You can put a properties file in classes folder and
: configure it whatever way you want.
: Typically web application will load some properties file
: to do config in startup.
:
: 吧。