Spring 控制器方法被多次调用

Question

我有一个 spring boot 应用程序，它充当 ionic 应用程序的服务，每当我调用 api 时，控制器方法都会被调用两次，例如：

@RestController
@CrossOrigin
@RequestMapping("/sendSMS")
public class SendSMSController {

@Autowired
SendSMSService sendSMSService;
protected final Log logger = LogFactory.getLog(getClass());

@PostMapping(value = "/sendMessage", produces = "application/json",consumes = "application/json")
public  Map<String, Object> sendMessage(@RequestBody UserRegistration userRegistration) {   
    logger.info("Api sendMessage test");
     return sendSMSService.sendMessage(userRegistration);
}
}

当我从邮递员调用 http://localhost:8080/CEPMobileService/sendSMS/sendMessage 时，api /sendMessage 被调用两次，如日志中所示

15/10/2020 09:32:29 PM |  INFO | http-nio-8080-exec-4 | SendSMSController | Api sendMessage test
15/10/2020 09:32:29 PM |  INFO | http-nio-8080-exec-4 | SendSMSController | Api sendMessage test
15/10/2020 09:32:29 PM |  INFO | http-nio-8080-exec-4 | SendSMSServiceImpl | Phone number--> 
[0000000000, 0000000000]
15/10/2020 09:32:29 PM |  INFO | http-nio-8080-exec-4 | SendSMSServiceImpl | Phone number--> 
[0000000000, 0000000000]
15/10/2020 09:32:29 PM |  INFO | http-nio-8080-exec-4 | SendSMSServiceImpl | Message number-->In 
distress!!!
15/10/2020 09:32:29 PM |  INFO | http-nio-8080-exec-4 | SendSMSServiceImpl | Message number-->In 
distress!!!
15/10/2020 09:32:29 PM |  INFO | http-nio-8080-exec-4 | SendSMSServiceImpl | numbers---->0000000000, 
0000000000
15/10/2020 09:32:29 PM |  INFO | http-nio-8080-exec-4 | SendSMSServiceImpl | numbers---->0000000000, 
0000000000

不仅是这个 api，代码中的每个 api 都会被调用两次，在 Azure 中部署时也会发生这种情况。一个答案建议它可能是由于 JSONView，但它在我的系统中不可用，其他答案也无济于事，请问有什么解决方案吗？

Answer 1

正如 anavaraslamurep 和 Ismail 所建议的，这确实是一个记录器错误，我使用了 log4j，并且消息被记录了两次，因为我配置了 appenders。我解决了将additivity设置为false，这是配置：

 <?xml version="1.0" encoding="UTF-8"?>
<Configuration status="INFO">
<Properties>
    <!-- azure server log -->
    <Property name="log-path">d:\home\Citizen_Engagement_App_V3_logs
    </Property>
</Properties>

<Appenders>
    <RollingFile name="file-log"
        fileName="${log-path}/citizen_app_application.log"
        filePattern="${log-path}/%d{dd/MM/yyyy hh:mm:ss a}/application-log-%i.log.gz">
        <PatternLayout
            pattern="%d{dd/MM/yyyy hh:mm:ss a} | %5level | %t | %c{1} | %m%n" />
        <Policies>
            <TimeBasedTriggeringPolicy interval="1"
                modulate="true" />
            <SizeBasedTriggeringPolicy size="100 MB" />
        </Policies>
    </RollingFile>

    <RollingFile name="error-log" fileName="${log-path}/application_error.log"
        filePattern="${log-path}/errorlog/%d{yyyy}/%d{MMM}/%d{dd}/application-log-%i- 
  error.log.gz">
        <PatternLayout
            pattern="%d{dd/MM/yyyy hh:mm:ss a} | %5level | %t | %c{1} | %m%n" />
        <Policies>
            <TimeBasedTriggeringPolicy interval="1"
                modulate="true" />
            <SizeBasedTriggeringPolicy size="100 MB" />
        </Policies>
    </RollingFile>

    <Console name="console" target="SYSTEM_OUT">
        <PatternLayout
            pattern="%d{dd/MM/yyyy hh:mm:ss a} | %5level | %t | %c{1} | %m%n" />
    </Console>
</Appenders>
<Loggers>

    <logger name="org.hibernate.SQL" level="DEBUG" additivity="false">
        <appender-ref ref="file-log" />
        <appender-ref ref="console" />
    </logger>

    <logger name="com.trinity" level="ALL" additivity="false">
        <appender-ref ref="file-log" />
        <appender-ref ref="console" />
    </logger>
    <logger name="org.trinity" level="ALL" additivity="false">
        <appender-ref ref="file-log" />
        <appender-ref ref="console" />
    </logger>
    <logger name="kafka" level="ALL" additivity="false">
        <appender-ref ref="file-log" />
        <appender-ref ref="console" />
    </logger>
    <logger name="jms" level="ALL" additivity="false">
        <appender-ref ref="file-log" />
        <appender-ref ref="console" />
    </logger>

    <Root level="ERROR">
        <appender-ref ref="error-log" />
        <appender-ref ref="console" />
    </Root>
</Loggers>
</Configuration>