Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is feign.codec.DecodeException: Error while extracting response for type [java.util.List<com.mcsgis.saas.system.api.domain.PropertyPriceConfig>] and content type [application/json;charset=UTF-8]; nested exception is org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Cannot deserialize value of type `java.util.ArrayList<com.mcsgis.saas.system.api.domain.PropertyPriceConfig>` from Object value (token `JsonToken.START_OBJECT`); nested exception is com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot deserialize value of type `java.util.ArrayList<com.mcsgis.saas.system.api.domain.PropertyPriceConfig>` from Object value (token `JsonToken.START_OBJECT`) at [Source: (org.springframework.util.StreamUtils$NonClosingInputStream); line: 1, column: 1]] with root cause
时间: 2023-12-25 17:03:23 浏览: 37
这个异常是由于Feign客户端在尝试将返回的JSON响应反序列化为`java.util.List<com.mcsgis.saas.system.api.domain.PropertyPriceConfig>`时失败了。具体来说,它表明响应的JSON格式与期望的不同,导致反序列化失败。
根据异常信息,我们可以看到响应JSON的起始标记为`JsonToken.START_OBJECT`,而不是期望的`JsonToken.START_ARRAY`,这表明响应的JSON格式不是一个数组类型。可能的原因是服务端返回的JSON格式不正确,或者客户端请求的内容类型与服务端返回的内容类型不匹配。
建议检查服务端接口返回的JSON格式是否正确,并确保客户端请求的内容类型与服务端返回的内容类型一致。如果问题仍然存在,请提供更多的代码和上下文信息,以便更好地理解问题。
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Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception
根据提供的引用内容, Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is (这里是包名)] with root cause. Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is java.lang.NullPointerException] with root cause.和44.892 ERROR 13764 --- [nio-8081-exec-9] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed;... ,我可以告诉你的是这是一个关于Servlet的异常信息。具体来说,是当在处理请求时,由于某种原因导致了异常。异常的具体原因可能是包名(引用中的内容),也可能是java.lang.NullPointerException(引用中的内容)。这个异常信息表明在处理请求时发生了错误,导致请求处理失败(引用中的内容)。根据提供的信息,无法确定具体的异常原因,需要进一步的调查和排查才能确定问题的根本原因。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request
根据引用和引用,报错信息"Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is java.lang.NullPointerException] with root cause"表示在处理请求时发生了异常,具体是空指针异常。
根据引用的描述,问题可能出现在Springboot的Controller接收实体类参数时。根据测试结果,使用GET方法传递参数是可以正常接收的,而使用POST方法传递参数时却无法接收到值。这可能是因为接收实体类参数时的问题。
可能的解决方法是检查Controller中的接收参数的注解是否正确,并确保实体类的属性与请求参数的名称匹配。另外,还可以使用Postman工具进行测试,确认请求参数是否正确传递。
总结回答,报错信息"Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is java.lang.NullPointerException] with root cause"表示在处理请求时发生了空指针异常。问题可能出现在Springboot的Controller接收实体类参数时。可以检查Controller中的注解和实体类属性是否正确,并使用Postman工具进行测试确认参数是否正确传递。