Error content: Whitelabel Error Page This application has no explicit mapping for /error, so you are seeing this as a fallback. Tue Aug 30 01:11:51 CST 2022 There was an unexpected error (type=Not Found, status=404). There are many reasons for this error, the error I got is as follows: Workaround: Add the following to pom.xml: […]
Tag: fallback
[Solved] This application has no explicit mapping for /error, so you are seeing this as a fallback.
This error is reported when spring boot accesses static resources. Two reasons have been found at present. Mainly view resolver issues 1. Check whether the controller path is the same as the return string, these two places cannot be the same @RequestMapping(“/tohello”)//Controller path public String hello(){ return “hello”;//Static resource path } 2. Has the default […]
[Solved] Feign call error: failed and no fallback available /timed-out and no fallback
Pro test available! 1. failed and no fallback available the reason for this 1. The service is unavailable 2. Caused by excessive concurrency 2. Timed-out and no fallback the reason for this The service connection is normal, but the data returned by reading is abnormal Improvement: set parameters, feign and hystrix, and ribbon relationship parameters […]
[Solved] Get the full IP address Solution This application has no explicit mapping for /error, so you are seeing this as a fallback
Directory question analyse problem source code to get ip address Interface call source code backend error Solve the problem Modify the source code for obtaining the IP address Interface call source code Summary of possible error causes and solutions for status=404 Solution and Reason 1 Solution and Reason 2 Solution and Reason 3 Questions Today, […]
[Solved] No fallback instance of type class error solution
Project Scenario: Learn feign + hystrix fuse to make remote calls Problem description A bug occurs when starting a remote call class Caused by: java.lang.IllegalStateException: No fallback instance of type class org.springblade.demo.feign.BlogClientFallback found for feign client blade-demo at org.springblade.core.cloud.sentinel.BladeFeignSentinel$Builder$1.getFromContext(BladeFeignSentinel.java:103) at org.springblade.core.cloud.sentinel.BladeFeignSentinel$Builder$1.create(BladeFeignSentinel.java:87) at feign.ReflectiveFeign.newInstance(ReflectiveFeign.java:64) at feign.Feign$Builder.target(Feign.java:269) at org.springframework.cloud.openfeign.HystrixTargeter.target(HystrixTargeter.java:38) at org.springframework.cloud.openfeign.HystrixTargeter$$FastClassBySpringCGLIB$$b9e5b0c6.invoke(<generated>) at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:779) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) […]
[Solved] The solution to the FallbackHome problem that occurs when the Android system closes the lock screen service
1. Turn off the lock screen Keyguard service Code Path: frameworks/base/packages/SystemUI/res/values/config.xml config_enableKeyguardService property set to false <!– Whether to enable KeyguardService or not –> <bool name=”config_enableKeyguardService”>false</bool> 2. FallbackHome problem solution (delayed boot animation) Code path: frameworks/base/services/core/java/com/android/server/wm/WindowManagerService.java mH.postDelayed(new Runnable() { @Override public void run() { if (!mBootAnimationStopped) { Trace.asyncTraceBegin(TRACE_TAG_WINDOW_MANAGER, “Stop bootanim”, 0); // stop boot animation […]
[Solved] This application has no explicit mapping for /error, so you are seeing this as a fallback. Solution
This application has no explicit mapping for /error, so you are seeing this as a fallback. Solution Error screenshot wrong reason Solution Error screenshot Recently, I used springboot to build a personal blog system, and then I ran into such an error the next day. Reason for error The error shown in the figure appears. […]
[Solved] This application has no explicit mapping for /error, so you are seeing this as a fallback.
Definitely useful! The static resource cannot find the mapping, and the 404 error burst Solution: Write a configuration class to map static resource url @Slf4j @Configuration public class WebMvcConfig extends WebMvcConfigurationSupport {<!– –> /** * Set static resource mapping * @param registry */ @Override protected void addResourceHandlers(ResourceHandlerRegistry registry) {<!– –> log.info(“Start to map resources…….”); //The […]
[Solved] FallbackDefinitionException: fallback method wasn’t found: error handling
FallbackDefinitionException: fallback method wasn’t found: error handling I encountered a problem today when I was learning hystrix: when I used feign to call other services that were not started, there was a problem of fallback method not found. The code is as follows @RequestMapping(value = “/buy/{id}”, method = RequestMethod.GET) @HystrixCommand(fallbackMethod = “error”) public Product findById(@PathVariable […]