java - Apache Spring - 具有多行属性值的 Bean

Question

有没有办法分解 Spring bean 的属性值，使其位于多行上？

<bean>
    <property name="something" value="Hello, this is a red fox jumping over a not very brown cow.">
</bean>

我知道在 Java 属性文件中，我可以在每行末尾放置一个“\”，但以下内容不适用于 Spring bean 的属性值:

<bean>
    <property name="something" value="Hello, this is a \
                                      red fox jumping over a \
                                      not very brown cow.">
</bean>

Answer 1

XML 属性允许跨行，并且解析器将非空格空白字符替换为空格。因此，对于您的示例，您可以使用:

<bean name="foo" class="Foo">
    <property name="bah" value=
"Hello, this is a
red fox jumping over a
not very brown cow." />
</bean>

那么“foo”中“bah”的值为

"Hello, this is a red fox jumping over a not very brown cow."

如果你尝试让它像这样整洁

<bean name="foo" class="Foo">
    <property name="bah" value=
        "Hello, this is a
        red fox jumping over a
        not very brown cow." />
</bean>

您将在解析结果中获得额外的空格字符。

Hello, this is a    red fox jumping over a    not very brown cow.