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我想将我的一个JSP页面下载为PDF。例如,这是我的函数返回到JSP页面:从Java中的JSP文件中下载pdf文件
@RequestMapping(value = "/cart", method = RequestMethod.GET)
public String cart(HttpSession httpSession ,final Model model, RedirectAttributes redirectAttributes){
StudentData studentData =(StudentData)httpSession.getAttribute("student");
if(studentData ==null){
redirectAttributes.addFlashAttribute("isFromCartFlag", Boolean.TRUE);
return REDIRECT_PREFIX + "/login" ;
}
final List<ProductData> cartDataFromDb = listofProducts.retrieveCartEntriesFromDb(studentData.getName());
List<ProductData> sessionCart = (List<ProductData>) httpSession.getAttribute("sessionCart");
if (sessionCart != null) {
for (ProductData sessionCartEntryData : sessionCart) {
for (ProductData cartEntryData : cartDataFromDb) {
if(cartEntryData.getProductName().equalsIgnoreCase(sessionCartEntryData.getProductName())){
int quantityOfItem = cartEntryData.getQuantity()+sessionCartEntryData.getQuantity();
sessionCartEntryData.setQuantity(quantityOfItem);
}
}
listofProducts.insertCartEntriesIntoDb(studentData.getName(),sessionCartEntryData.getProductName(),sessionCartEntryData.getQuantity());
}
}
final List<ProductData> cartData = listofProducts.retrieveCartEntriesFromDb(studentData.getName());
List<ProductData> productDataListForCart = new ArrayList<ProductData>();
for (ProductData cartDataEntry : cartData) {
ProductData productData = listofProducts.displayProductDetailsFromProductId(cartDataEntry.getProductName());
if(productData.getProductName().equalsIgnoreCase(cartDataEntry.getProductName())){
cartDataEntry.setBasePrice(productData.getBasePrice());
cartDataEntry.setDiscout(productData.getDiscout());
cartDataEntry.setProductImagePath(productData.getProductImagePath());
productDataListForCart.add(cartDataEntry);
}
}
model.addAttribute("listOfProducts", productDataListForCart);
model.addAttribute("studentData", httpSession.getAttribute("student"));
if(productDataListForCart.isEmpty()){
model.addAttribute("isCartEmptyFlag", Boolean.TRUE);
}
return "CartPage";
}
该功能显示cartPage
,我想显示此购物车页面上的链接,这样,如果我点击该链接的get页面下载为上一个与JSP页面中显示的格式相同的PDF文件。这就是我的页面的样子,如果您有兴趣:
它在这里概述的基本过程:http://stackoverflow.com/a/27533212/1356423 –