Java REST-HTTP状态405；方法不允许；请求方法'；把'；不支持的错误

我有以下控制器

@RestController
@RequestMapping("regions")
public class RegionController {

    @Autowired
    RegionService regionService;

    ModelMapper modelMapper = new ModelMapper();

    @PostMapping
    public RegionRest createRegion(@RequestBody RegionDetailsRequestModel regionDetails) {

        RegionDto regionDto = modelMapper.map(regionDetails, RegionDto.class);

        RegionDto createdRegion = regionService.createRegion(regionDto);

        RegionRest returnValue = modelMapper.map(createdRegion, RegionRest.class);
        return returnValue;
    }

    @GetMapping(path = "/{regionId}")
    public RegionRest getRegion(@PathVariable String regionId) {

        RegionDto regionDto = regionService.getRegionByRegionId(regionId);

        RegionRest returnValue = modelMapper.map(regionDto, RegionRest.class);
        return returnValue;
    }

    @PutMapping(path = "/(regionId}")
    public RegionRest updateRegion(@PathVariable String regionId, @RequestBody RegionDetailsRequestModel regionDetails) {

        RegionDto regionDto = modelMapper.map(regionDetails, RegionDto.class);

        RegionDto updatedRegion = regionService.updateRegion(regionId, regionDto);

        RegionRest returnValue = modelMapper.map(updatedRegion, RegionRest.class);
        return returnValue;
    }
}

这是我从邮差那里打来的请求电话。 首先，“获取”请求：工作正常。

第二，“放置”请求：给出错误。

数据库表屏幕截图（如果需要）

错误日志

2020-01-27 12:12:22.007  WARN 19860 --- [           main] JpaBaseConfiguration$JpaWebConfiguration : spring.jpa.open-in-view is enabled by default. Therefore, database queries may be performed during view rendering. Explicitly configure spring.jpa.open-in-view to disable this warning
2020-01-27 12:12:22.236  INFO 19860 --- [           main] o.s.s.concurrent.ThreadPoolTaskExecutor  : Initializing ExecutorService 'applicationTaskExecutor'
2020-01-27 12:12:22.252 DEBUG 19860 --- [           main] s.w.s.m.m.a.RequestMappingHandlerAdapter : ControllerAdvice beans: 0 @ModelAttribute, 0 @InitBinder, 1 RequestBodyAdvice, 1 ResponseBodyAdvice
2020-01-27 12:12:22.319 DEBUG 19860 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : 18 mappings in 'requestMappingHandlerMapping'
2020-01-27 12:12:22.361 DEBUG 19860 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Patterns [/webjars/**, /**] in 'resourceHandlerMapping'
2020-01-27 12:12:22.377 DEBUG 19860 --- [           main] .m.m.a.ExceptionHandlerExceptionResolver : ControllerAdvice beans: 0 @ExceptionHandler, 1 ResponseBodyAdvice
2020-01-27 12:12:22.517  INFO 19860 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 8080 (http) with context path ''
2020-01-27 12:12:22.517  INFO 19860 --- [           main] com.azad.practice.hr.HrApplication       : Started HrApplication in 14.398 seconds (JVM running for 15.423)
2020-01-27 12:12:43.189  INFO 19860 --- [nio-8080-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring DispatcherServlet 'dispatcherServlet'
2020-01-27 12:12:43.189  INFO 19860 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet        : Initializing Servlet 'dispatcherServlet'
2020-01-27 12:12:43.190 DEBUG 19860 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet        : Detected StandardServletMultipartResolver
2020-01-27 12:12:43.202 DEBUG 19860 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet        : enableLoggingRequestDetails='false': request parameters and headers will be masked to prevent unsafe logging of potentially sensitive data
2020-01-27 12:12:43.202  INFO 19860 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet        : Completed initialization in 13 ms
2020-01-27 12:12:43.215 DEBUG 19860 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet        : PUT "/regions/reg_MCNXENXzF4", parameters={}
2020-01-27 12:12:43.222  WARN 19860 --- [nio-8080-exec-1] .w.s.m.s.DefaultHandlerExceptionResolver : Resolved [org.springframework.web.HttpRequestMethodNotSupportedException: Request method 'PUT' not supported]
2020-01-27 12:12:43.223 DEBUG 19860 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet        : Completed 405 METHOD_NOT_ALLOWED
2020-01-27 12:12:43.234 DEBUG 19860 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet        : "ERROR" dispatch for PUT "/error", parameters={}
2020-01-27 12:12:43.237 DEBUG 19860 --- [nio-8080-exec-1] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped to org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController#error(HttpServletRequest)
2020-01-27 12:12:43.298 DEBUG 19860 --- [nio-8080-exec-1] o.s.w.s.m.m.a.HttpEntityMethodProcessor  : Using 'application/json', given [*/*] and supported [application/json, application/*+json, application/json, application/*+json]
2020-01-27 12:12:43.299 DEBUG 19860 --- [nio-8080-exec-1] o.s.w.s.m.m.a.HttpEntityMethodProcessor  : Writing [{timestamp=Mon Jan 27 12:12:43 BDT 2020, status=405, error=Method Not Allowed, message=Request metho (truncated)...]
2020-01-27 12:12:43.383  INFO 19860 --- [nio-8080-exec-1] i.StatisticalLoggingSessionEventListener : Session Metrics {
    0 nanoseconds spent acquiring 0 JDBC connections;
    0 nanoseconds spent releasing 0 JDBC connections;
    0 nanoseconds spent preparing 0 JDBC statements;
    0 nanoseconds spent executing 0 JDBC statements;
    0 nanoseconds spent executing 0 JDBC batches;
    0 nanoseconds spent performing 0 L2C puts;
    0 nanoseconds spent performing 0 L2C hits;
    0 nanoseconds spent performing 0 L2C misses;
    0 nanoseconds spent executing 0 flushes (flushing a total of 0 entities and 0 collections);
    0 nanoseconds spent executing 0 partial-flushes (flushing a total of 0 entities and 0 collections)
}
2020-01-27 12:12:43.384 DEBUG 19860 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet        : Exiting from "ERROR" dispatch, status 405

我以前已经实现过一百次这样的更新方法。但从未面对过这个错误。 我在stackoverflow中也发现了类似的错误帖子，比如这个链接 并且落实了每一个建议，但是我的问题没有解决

试试换衣服

@PutMapping(path = "/(regionId}")

到

---

首先想到的是：你在代码中输入了一个错误：“/（regionId}”）你用打开的（你用关闭的。）将开始括号改为正确的类型是的，这就是错误！！它工作正常。谢谢。我的视力很弱，很抱歉：）我要补充几点：ModelMapper很慢，而且（根据我的经验）使用起来很痛苦；MapStruct和竞争对手的情况要好得多。使用构造函数注入而不是字段注入。为单一JSON模型使用不同的“Rest”/“DTO”/“Model”模型似乎要求不同步。哦，为了便于将来参考，请将

org.springframework.web

的日志级别设置为DEBUG，这样您将在启动时获得所有映射的列表，这对了解Spring是如何解释您的指令非常有帮助。我同意。我不知道MapStruct；我以后会试试的。至于日志记录：已经完成了。谢谢。他已经这么做了，并且已经说过这确实解决了问题。

@PutMapping(path = "/{regionId}")