java - SimpleIllegalSyntaxException : is operator cannot find class with name:

Question

我试图通过调用该方法来检查 when 中的 Camel 选择条件，但失败并引发异常。请帮助我检查具有常量值的方法返回值。

异常(exception):

SimpleIllegalSyntaxException: is operator cannot find class with name: VS at location 22 ${body.recType} is 'VS'

路线:

from("direct:processAccounts").process(filterProcessor). 
 split(simple("${body}")).choice().when().
 simple("${body.recType} is 'VS'").
 process((exchange) -> {log.info("VS:");}).otherwise().to("stream:out");

Java 类:

public class Records{

    private String recType;
    // getters and setters
}

Answer 1

is 运算符类似于 Java 中的 instanceof。如果您想对字符串值进行等于比较，请使用

simple("${body.recType} == 'VS'").

查看简单文档:http://camel.apache.org/simple