Spring MVC 抛出 org.springframework.web.HttpMediaTypeNotAcceptableException 异常: 无法找到可接受的表示。

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Spring MVC 抛出 org.springframework.web.HttpMediaTypeNotAcceptableException 异常: 无法找到可接受的表示。

我正在使用SpringMVC，在尝试进行更新时出现以下异常。

10:10:49,847 DEBUG LogicalConnectionImpl:250 - Released JDBC connection
10:10:49,859 DEBUG FixedContentNegotiationStrategy:48 - Requested media types is text/html (based on     default MediaType)
10:10:49,929 DEBUG ExceptionHandlerExceptionResolver:132 - Resolving exception from handler [public   com.model.JobQueue com.controller.TestResultController.updateJob(java.lang.String,java.lang.String,java.lang.String)]: org.springframework.web.HttpMediaTypeNotAcceptableException: Could not find acceptable representation
10:10:49,937 DEBUG ResponseStatusExceptionResolver:132 - Resolving exception from handler [public com.model.JobQueue com.controller.TestResultController.updateJob(java.lang.String,java.lang.String,java.lang.String)]: org.springframework.web.HttpMediaTypeNotAcceptableException: Could not find acceptable representation
10:10:49,938 DEBUG DefaultHandlerExceptionResolver:132 - Resolving exception from handler [public com.model.JobQueue com.controller.TestResultController.updateJob(java.lang.String,java.lang.String,java.lang.String)]: org.springframework.web.HttpMediaTypeNotAcceptableException: Could not find acceptable representation
10:10:49,940 DEBUG DispatcherServlet:999 - Null ModelAndView returned to DispatcherServlet with name 'dispatcher': assuming HandlerAdapter completed request handling
10:10:49,940 DEBUG DispatcherServlet:966 - Successfully completed request
10:10:49,941 DEBUG DefaultListableBeanFactory:246 - Returning cached instance of singleton bean 'org.springframework.context.annotation.internalScheduledAnnotationProcessor'

以下是引发异常的控制器方法。是否有需要我做的事情才能让它工作？

@RequestMapping(value="/updateJob", method=RequestMethod.GET)
public @ResponseBody JobQueue updateJob(@RequestParam(value="job_id") String job_id, @RequestParam String test_id, @RequestParam(value="status") String status) {
   JobQueue job = jobqueueService.getJob(Integer.parseInt(job_id));
   job.setTest_id(test_id);
   job.setStatus(Integer.parseInt(status));
   jobqueueService.updateJob(job);
   return job;
}

我发现以下帖子Spring MVC - HttpMediaTypeNotAcceptableException，其中讨论了类似的问题，但我不确定如何使用注释解决此问题。

有什么想法吗？

admin 更改状态以发布 2023年5月23日
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2 答案

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你可以试试这个:

@RequestMapping(value = "audit/unaudit", method = RequestMethod.GET,produces = "application/json")

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由于控制器返回值的原因，抛出了异常。一旦我改变了返回值，异常就消失了。

public @ResponseBody String updateJob(@RequestParam(value="job_id") String job_id){

我还将响应改为null。

@RequestMapping(value="/updateJob", method=RequestMethod.GET)
public @ResponseBody String updateJob(@RequestParam(value="job_id") String job_id){
    Integer jobid = Integer.parseInt(job_id);
    JobQueue job = jobqueueService.getJob(jobid);
    .
    .
    return null;
}

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