Question

我遇到了Spring和Camel的问题。

对不起，我无法粘贴真实代码...... 所以，我试图通过占位符获取驼峰上下文中定义的属性。但属性为空。

<bean id="mySuperClass"
        class="com.lol.rofl.MySuperClass">
</bean>
<camelContext id="blablabla" xmlns="http://camel.apache.org/schema/spring">
<propertyPlaceholder id="myProp"
        location="classpath:camel/contexts/myprops.properties" />
....
Some fantastique code that use the properties and works.
....
</camelContext>

.java：

public class MySuperClass implements CamelContextAware
{

    public void getCCProperties()
    {
           final Map<String, String> camelContextProperties = camelContext.getProperties();
            crawlerOutputDirectory = camelContextProperties.get("my.super.pro");
    }
}

我只是觉得我没有尝试正确的方式，谢谢你的帮助

解

placeHolders中的属性可以通过以下方式找到：

camelContext.resolvePropertyPlaceholders("{{" + propertyName + "}}");

ex：camelContext.resolvePropertyPlaceholders("{{output.directory}}");

Answer 1

读取方法的javadoc，CamelContext上的getProperties不适用于属性占位符。使用resolvePropertyPlaceholders作为属性占位符

CamelContext的javadoc：http://camel.apache.org/maven/current/camel-core/apidocs/org/apache/camel/CamelContext.html

从java bean获取CamelContext参数

1 个答案: