SpringBoot @RestController,找到了不明确的映射

Question

嗨,我的Sample中有一个简单的RestController:

@RestController
public class PersonController {

    @RequestMapping(name = "/getName", method = GET)
    public String getName() {
        return "MyName";
    }

    @RequestMapping(name = "/getNumber", method = GET)
    public Double getNumber(){
        return new Double(0.0);
    }
}

我有SampleController用于启动SpringBoot:

@SpringBootApplication
@Controller
public class SampleController {

    public static void main(String[] args) throws Exception {
        SpringApplication.run(SampleController.class, args);
    }
}

当我尝试运行SampleCotroller时,会发生以下异常:

Caused by: java.lang.IllegalStateException: Ambiguous mapping found. Cannot map 'personController' bean method 
public java.lang.Double com.web.communication.PersonController.getNumber()
to {[],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]}: There is already 'personController' bean method
public java.lang.String com.web.communication.PersonController.getName() mapped.

问题出在哪里？一个RestController中不能有更多的RequestMappings？

非常感谢您的回复

Answer 1

您必须使用value属性来定义映射.您name现在使用过,它只是为映射提供了一个名称,但根本没有定义任何映射.所以目前你的方法都是未映射的(在这种情况下,两者都映射到相同的路径).将方法更改为:

@RequestMapping(value = "/getName", method = GET)
public String getName() {
    return "MyName";
}

@RequestMapping(value = "/getNumber", method = GET)
public Double getNumber(){
    return new Double(0.0);
}