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org.springframework.web.util.NestedServletException: Request processing failed; nested exception is java.lang.NullPointerException

本文轉載自   查看原文   2019-05-30 23:07   1130    JAVA基礎/ 新手錯誤 
@Controller
@RequestMapping("/role")
public class RoleController {

    @Autowired
    private IRoleService roleService;

忘寫@Autowired


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猜您在找 error：org.springframework.web.util.NestedServletException: Request processing failed; nested exception is java.lang.NullPointerException 成功解決 org.springframework.web.util.NestedServletException: Request processing failed; nested exception is java.lang.IllegalStateException:報錯 org.springframework.web.util.NestedServletException : Handler processing failed; nested exception is java.lang.StackOverflowError Tomcat服務org.springframework.web.util.NestedServletException: Handler processing failed; nested exception is java.lang.OutOfMemoryError: Java heap space org.springframework.web.util.NestedServletException:Handlerdispatch failed;nested exception is java.lang.NoSuchMethodErroe; org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.web.multipart.MultipartException: Current request is not a multipart request org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.jboss.resteasy.plug maven項目拋出org.springframework.web.util.NestedServletException: Handler dispatch failed; nested exception is java.lang.IncompatibleClassChangeError: Implementing class org.springframework.web.util.NestedServletException: Handler dispatch failed; nested exception is java.lang.NoSuchMethodError: 報錯異常原因及解決 Request processing failed; nested exception is java.lang.NullPointerException
 
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