Java 中 JavaScript 资源文件夹的等价物是什么？
我的 Wicket Web 应用程序包含 Flash (*.swf) FLV 播放器。以下代码：
final String script = "var swfVersionStr = '10.0.0';"
+ "var xiSwfUrlStr = 'playerProductInstall.swf';"
+ "var flashvars = {file:'/proj/resources/video.flv'};"
+ "var params = {};"
+ "params.wmode = 'transparent';"
+ "params.quality = 'high';"
+ "params.allowscriptaccess = 'sameDomain';"
+ "params.allowfullscreen = 'true';"
+ "var attributes = {};"
+ "attributes.id = 'test';"
+ "attributes.name = 'test';"
+ "attributes.align = 'left';"
+ "swfobject.embedSWF('/proj/resources/mediaplayer.swf', 'movieDiv', '640', '480', swfVersionStr, xiSwfUrlStr, flashvars, params, attributes);"
+ "swfobject.createCSS('#flashContent', 'display:block;text-align:left;');";
add(new AbstractBehavior() {
public void renderHead(IHeaderResponse response) {
super.renderHead(response);
response.renderOnLoadJavascript(script);
}
});
播放FLV。 swfobject.js 文件位于我的服务器的资源文件夹中。当我在本地主机上测试它时，资源文件夹的绝对路径是：/home/tapas/Desktop/proj/work/Jetty_0_0_0_0_80_proj.war__proj__qk44r3/webapp。现在，如何使用 Java 将文件保存在服务器的资源文件夹中？ JavaScript 将资源文件夹路径识别为 /proj/resources/； Java 中该路径的等效表达式是什么？我已经尝试过：
try{
File file=new File("/proj/resources/joymaa.txt");
if(file.exists()){
System.out.println("File exists");
}else{
System.out.println("File does not exists");
}
}catch(Exception exception){
System.out.println(exception.getMessage());
}
这不显示任何错误消息，但显示“文件不存在”。
My Wicket web application contains a Flash (*.swf) FLV player. The following code:
final String script = "var swfVersionStr = '10.0.0';"
+ "var xiSwfUrlStr = 'playerProductInstall.swf';"
+ "var flashvars = {file:'/proj/resources/video.flv'};"
+ "var params = {};"
+ "params.wmode = 'transparent';"
+ "params.quality = 'high';"
+ "params.allowscriptaccess = 'sameDomain';"
+ "params.allowfullscreen = 'true';"
+ "var attributes = {};"
+ "attributes.id = 'test';"
+ "attributes.name = 'test';"
+ "attributes.align = 'left';"
+ "swfobject.embedSWF('/proj/resources/mediaplayer.swf', 'movieDiv', '640', '480', swfVersionStr, xiSwfUrlStr, flashvars, params, attributes);"
+ "swfobject.createCSS('#flashContent', 'display:block;text-align:left;');";
add(new AbstractBehavior() {
public void renderHead(IHeaderResponse response) {
super.renderHead(response);
response.renderOnLoadJavascript(script);
}
});
plays the FLV. The swfobject.js file is placed in the resource folder of my server. As I am testing it on localhost, the absolute path of resource folder is: /home/tapas/Desktop/proj/work/Jetty_0_0_0_0_80_proj.war__proj__qk44r3/webapp. Now, how can I save a file in the resource folder of my server by using Java? JavaScript identifies the resource folder path as /proj/resources/; what is the equivalent expression of this path in Java? I have tried:
try{
File file=new File("/proj/resources/joymaa.txt");
if(file.exists()){
System.out.println("File exists");
}else{
System.out.println("File does not exists");
}
}catch(Exception exception){
System.out.println(exception.getMessage());
}
This is not displaying any error message, but it shows "File does not exists."
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评论（3）
我建议不要使用绝对文件路径来查找 WAR 文件中的资源。
如果您的 Java 应用程序需要资源，最好将其放入 CLASSPATH 中，并使用 servlet 上下文中的 getResourceAsStream() 来获取用于读取的 InputStream。
I'd recommend not using an absolute file path to find a resource in a WAR file.
If your Java app needs a resource, best to put it in the CLASSPATH and use
getResourceAsStream()from the servlet context to get an InputStream for reading.尝试找出您的 java 实际工作目录...这可能会有所帮助： 示例
我不认为java可以理解你的相对路径，因为它从与javascript不同的目录运行。只是我的意见，但尝试一下。
try to find out what is your actual working directory of java... this might help: example
I dont think that java could understand your relative path because it runs from different directory than javascript. Just my opinion, but give it a try.
((WebApplication) getApplication()).getServletContext().getRealPath("/resources/video/xml/video.xml")
((WebApplication) getApplication()).getServletContext().getRealPath("/resources/video/xml/video.xml")