java 如何显示特定文件夹中jsp页面中的所有图像？
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how to show all image in jsp page from particular folder?
提问by Kapil
I have one folder it contain more then one images, i want to show all image in my jsp page. I try following code in my jsp page.
我有一个文件夹，它包含多个图像，我想在我的 jsp 页面中显示所有图像。我尝试在我的 jsp 页面中使用以下代码。
<img src="<%=request.getContextPath() %>/uploadFolder/poll1.jpg"
width="114" height="110" style="float: left;">
<h1>
Images
</h1>
I have more then 10 images in uploadFolder i want to display all images in jsp page kindly help me how to do this?
我在uploadFolder中有超过10张图片我想在jsp页面中显示所有图片请帮助我如何做到这一点？
采纳答案by Mohammad Adil
File f = new File("/uploadFolder/");
File[] list = f.listFiles();
You will get list of all files in your upload folder -
您将获得上传文件夹中所有文件的列表 -
You just need to loop through it like this -
你只需要像这样循环它 -
for(int i = 0 ; i < list.length ; i++){
File jpg = list[i];
// use this file object to create img tag's in your jsp
}
More info about File
有关文件的更多信息
回答by Mohammad Adil
use following code on your jsp page :
在您的 jsp 页面上使用以下代码：
File folder = new File("d:\Reports"); //your path
File[] listOfFiles = folder.listFiles();
for (int i = 0; i < listOfFiles.length; i++)
{
if (listOfFiles[i].isFile())
{
in html page:
在 html 页面中：
<a href="servlet&filename=<%=listOfFiles[i].getName()%>">Download</a>
}}
i have shown using <a>tag you can show it in table or in <img>tag.
我已经使用<a>标签显示，您可以在表格或<img>标签中显示它。
回答by Vignesh Vino
Build the list of filenames to display.
构建要显示的文件名列表。
List imageUrlList = new ArrayList();
File imageDir = new File("/myapp/images");
for(File imageFile : imageDir.listFiles()){
String imageFileName = imageFile.getName();
// add this images name to the list we are building up
imageUrlList.add(imageFileName);
}
request.setAttribute("imageUrlList", imageUrlList);
then on the jsp display an <img>tag for each file.
然后在jsp上<img>为每个文件显示一个标签。
<c:forEach var="img" items="${imageUrlList}">
<img >
</c:forEach>
