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定义配置类设置feign.hystrix.enabled=true不起作用，配置类如下：
@configuration
@ConditionalOnClass({HystrixCommand.class, HystrixFeign.class})
public class FeignServerConfiguration {

@Bean
@Scope("prototype")
@ConditionalOnProperty(name = "feign.hystrix.enabled", matchIfMissing = true)
public Feign.Builder feignBuilder() {
    return Feign.builder();
}

}
目前是通过在配置文件中application.properties中添加feign.hystrix.enabled=true开启feign的hystrix服务。

如题，实际操作是先执行maven clean package，再执行java -jar报错no main manifest attribute。

在实体类上添加@alias注解进行别名，在项目启动时报错提示无法找到该类，如在User类上添加@alias("User")注解，在mapper中指定resultType="User"，项目启动报无法找到User类(can't find class User)。

Step 1: Install

Install option 1: Maven

Add the javabrake dependency through your IDE or directly to your pom.xml file:

<dependency>
  <groupId>io.airbrake</groupId>
  <artifactId>javabrake</artifactId>
  <version>0.1.6</version>
</dependency>

Install option 2: Gradle

Add javabrake to your Gradle dependencies:

compile 'io.airbrake:javabrake:0.1.6'

Install option 3: Ivy

Add javabrake to your Ivy dependencies:

<dependency org='io.airbrake' name='javabrake' rev='0.1.6'>
  <artifact name='javabrake' ext='pom'></artifact>
</dependency>

Step 2: Configure

Import the javabrake library and copy the three configuration lines into your
app to send all uncaught exceptions to Airbrake:

(You can find your project API KEY with your project's settings)

// Import the library:
import io.airbrake.javabrake.Notifier;

public class ExampleApp {
  public static void main(String[] args) {

    // Copy configuration lines:
    int projectId = <Your project ID>;
    String projectKey = "<Your project API KEY>";
    Notifier notifier = new Notifier(projectId, projectKey);
  }
}

Example of reporting a caught exception:

try {
  int i = 1/0;
} catch (ArithmeticException e) {
  notifier.report(e);
}

Visit our official GitHub repo for advanced information and integrations like log4j, log4j2, and logback.