任何人都知道如何制作JavaServer Faces h：outputText f：convertNumber将BigDecimal显示为美元？(Anyone know how to make Jav

任何人都知道如何制作JavaServer Faces h：outputText f：convertNumber将BigDecimal显示为美元？(Anyone know how to make JavaServer Faces h:outputText f:convertNumber display BigDecimal as dollars?)

当我有一个BigDecimal，其值为34.31并使用以下代码显示它：

<h:outputText value="#{invoice.invoiceHeader.totalInvoiceAmt}"> <f:convertNumber pattern="#0.00" type="currency" currencyCode="USD" currencySymbol="$"/> </h:outputText>

我期待它显示34.31美元，但它显示34.31。

我究竟做错了什么？

When I have a BigDecimal whose value is 34.31 and I display it with the following code:

<h:outputText value="#{invoice.invoiceHeader.totalInvoiceAmt}"> <f:convertNumber pattern="#0.00" type="currency" currencyCode="USD" currencySymbol="$"/> </h:outputText>

I was expecting it to display $34.31 but instead it displays 34.31.

What am I doing wrong?

最满意答案

谢谢@partlov。

当<f：convertNumber />具有模式属性时，将忽略类型和货币属性。 所以有以下几点：

<h:outputText value="#{invoice.invoiceHeader.totalInvoiceAmt}"> <f:convertNumber pattern="#0.00" type="currency" currencyCode="USD" currencySymbol="$"/> </h:outputText>

仅使用pattern =“＃0.00”，因此34.4变为34.40。 但有以下几点：

<h:outputText value="#{invoice.invoiceHeader.totalInvoiceAmt}"> <f:convertNumber type="currency" currencyCode="USD" currencySymbol="$"/> </h:outputText>

使用所有属性导致34.4成为34.40美元。

Thanks @partlov.

When <f:convertNumber/> has a pattern attribute, the type and currency attributes are ignored. So with the following:

<h:outputText value="#{invoice.invoiceHeader.totalInvoiceAmt}"> <f:convertNumber pattern="#0.00" type="currency" currencyCode="USD" currencySymbol="$"/> </h:outputText>

Only the pattern="#0.00" is used, so 34.4 becomes 34.40. But with the following:

<h:outputText value="#{invoice.invoiceHeader.totalInvoiceAmt}"> <f:convertNumber type="currency" currencyCode="USD" currencySymbol="$"/> </h:outputText>

All attributes are used resulting in 34.4 becoming $34.40.