小编Ser*_*scu的帖子

出于某种原因,java.nio.file.AccessDeniedException每次我尝试使用Tomcat上的java webapp写入计算机上的文件夹时,我都会收到这些信息.此文件夹的权限设置为对我计算机上的所有人(Windows)进行完全控制.有人知道为什么我会得到这个例外吗？

这是我的代码:

public void saveDocument(String name, String siteID, byte doc[]) {
    try {
        Path path = Paths.get(rootDirectory + siteID);
        if (Files.exists(path)) {
            System.out.println("Exists: " + path.toString());
            Files.write(path, doc);
        } else {
            System.out.println("DOesn't exist");
            throw new Exception("Directory for Site with ID " + siteID + "doesn't exist");
        }
    } catch (FileSystemException e) {
        System.out.println("Exception: " + e);
        e.printStackTrace();
    } catch (IOException e ) {
        System.out.println("Exception: " + e);
        e.printStackTrace();
    } catch (Exception e) {
        System.out.println("Exception: " + e); …

SAPUI5中处理模型时partsand有什么用？path

有人可以解释一下以下代码（invoiceJSONModel 在哪里）吗？

<mvc:View
    controllerName="sap.ui.demo.walkthrough.controller.InvoiceList"
    xmlns="sap.m"
    xmlns:mvc="sap.ui.core.mvc">
    <List
            headerText="{i18n>invoiceListTitle}"
        class="sapUiResponsiveMargin"
        width="auto"
        items="{invoice>/Invoices}">
        <items>
            <ObjectListItem
                title="{invoice>Quantity} x {invoice>ProductName}"
                number="{
                    parts: [{path: 'invoice>ExtendedPrice'}, {path: 'view>/currency'}],
                    type: 'sap.ui.model.type.Currency',
                    formatOptions: {
                        showMeasure: false
                    }
                }"
                numberUnit="{view>/currency}"
                numberState="{= ${invoice>ExtendedPrice} > 50 ? 'Error' : 'Success' }">
                <firstStatus>
                    <ObjectStatus text="{
                        path: 'invoice>Status',
                        formatter: '.formatter.statusText'
                    }"/>
                </firstStatus>
            </ObjectListItem>

        </items>
    </List>
</mvc:View>