Camel first experience

问题

I'm very new with Apache Camel. I can't get the simplest Camel example working. Here is the code:

public class CamelFE {
  public static void main(String[] args)  {
    CamelContext cc = new DefaultCamelContext();
    cc.addRoutes(new RouteBuilder() {
      @Override
      public void configure() throws Exception {
        System.out.println("Go!");
        from("file://Users/Foo/Desktop/IN")
        .to("file://Users/Foo/Desktop/OUT");

    });
  }
  cc.start();
  cc.stop();
}

Both directories exists, in the from one there is one simple file, helo.txt. The route starts and Go! message is displayed but no file was moved to the to directory. What am I missing?

Edit: this is the console output. SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder". SLF4j: Defaulting to no-operation (NOP) logger implementation SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details Go!

回答1:

I'm guessing you're using Windows, since you have references to Users/.../Desktop. If that's the case, your file syntax is slightly off. Rather than file://Users/Foo/Desktop, you should have file:///Users/Foo/Desktop.

You also need to allow enough time for the processing to occur before the application terminates. You might add a Thread.sleep. Note that in a web application, this wouldn't be an issue as the app stays running.

public class CamelFE {
    public static void main(String[] args) throws Exception {
        CamelContext cc = new DefaultCamelContext();
        cc.addRoutes(new RouteBuilder()
        {

            @Override
            public void configure() throws Exception {
                System.out.println("Go!");
                from("file:///Users/Foo/Desktop/IN").to("file:///Users/Foo/Desktop/OUT");
            }
        });

        cc.start();
        Thread.sleep(10000);
        cc.stop();
    }
}

来源：https://stackoverflow.com/questions/26998659/camel-first-experience