76.7. 将管道聚合为分隔符
考虑以下正文
Map<String, Object> body = new LinkedHashMap<>();
body.put("foo", "abc");
body.put("bar", 123);这个 Java 路由定义
// Camel version < 2.15
CsvDataFormat oldCSV = new CsvDataFormat();
oldCSV.setDelimiter("|");
from("direct:start")
.marshal(oldCSV)
.to("mock:result")
// Camel version >= 2.15
from("direct:start")
.marshal(new CsvDataFormat().setDelimiter('|'))
.to("mock:result")或者此 XML 路由定义
<route>
<from uri="direct:start" />
<marshal>
<csv delimiter="|" />
</marshal>
<to uri="mock:result" />
</route>然后它将生成
abc|123
在 XML 中使用 autogenColumns, configRef 和 strategyRef 属性
可从 Camel 2.9.2 / 2.10 开始,为 Camel 2.15 删除
您可以自定义 CSV 数据格式,以使用您自己的 CSVConfig 和/或 CSVStrategy。另请注意,autogenColumns 选项的默认值为 true。以下示例应演示此自定义。
<route>
<from uri="direct:start" />
<marshal>
<!-- make use of a strategy other than the default one which is 'org.apache.commons.csv.CSVStrategy.DEFAULT_STRATEGY' -->
<csv autogenColumns="false" delimiter="|" configRef="csvConfig" strategyRef="excelStrategy" />
</marshal>
<convertBodyTo type="java.lang.String" />
<to uri="mock:result" />
</route>
<bean id="csvConfig" class="org.apache.commons.csv.writer.CSVConfig">
<property name="fields">
<list>
<bean class="org.apache.commons.csv.writer.CSVField">
<property name="name" value="orderId" />
</bean>
<bean class="org.apache.commons.csv.writer.CSVField">
<property name="name" value="amount" />
</bean>
</list>
</property>
</bean>
<bean id="excelStrategy" class="org.springframework.beans.factory.config.FieldRetrievingFactoryBean">
<property name="staticField" value="org.apache.commons.csv.CSVStrategy.EXCEL_STRATEGY" />
</bean>