Author Archives: Robins

java.lang.IllegalArgumentException : could not get next sequenced ID for sequence name: Visitor solution

HTTP Status 500 – Could not get next sequenced ID for sequence name: Visitor

 

 

type Exception report
message Could not get next sequenced ID for sequence name: Visitor
description The server encountered an internal error that prevented it from fulfilling this request.
exception

java.lang.IllegalArgumentException: Could not get next sequenced ID for sequence name: Visitor
	org.ofbiz.entity.GenericDelegator.getNextSeqId(GenericDelegator.java:2515)
	org.ofbiz.entity.GenericDelegator.getNextSeqId(GenericDelegator.java:2503)
	org.ofbiz.entity.GenericEntity.setNextSeqId(GenericEntity.java:626)
	org.ofbiz.entity.GenericDelegator.createSetNextSeqId(GenericDelegator.java:789)
	org.ofbiz.webapp.stats.VisitHandler.getVisitor(VisitHandler.java:245)
	org.ofbiz.webapp.control.ControlServlet.doGet(ControlServlet.java:206)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.ofbiz.webapp.control.ContextFilter.doFilter(ContextFilter.java:326)

note The full stack trace of the root cause is available in the Apache Tomcat/8.0.33 logs.

Apache Tomcat/8.0.33

The database uses MySQL and is configured to start automatically, but it was shut down unexpectedly, resulting in an error.

 

 

 

 

Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of ty

Caused by: org.springframework.beans . factory.NoSuchBeanDefinitionException : No qualifying bean of type [ com.xxx.LanguageRecognizeService ] found for dependency [ com.xxxxxx.LanguageRecognizeService ]: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@ org.springframework.beans . factory.annotation.Autowired (required=true)}

In general, this kind of error is that the definition of bean is not found and the XML file is not imported.

Another kind of error is no class found. There is an XML file, but the jar package is not loaded to classpath. POM has no dependency, or conflicts, or depends on a lower version.

ognl.MethodFailedException: Method “setId” failed for object Itemer/org.springframework.orm.hibernat

Error in importing data from SSH framework of Java project:

19:17:12,518  WARN OgnlValueStack:64 - Error setting expression 'iid' with value '[Ljava.lang.String;@52b1eaed'
ognl.MethodFailedException: Method "setIid" failed for object Itemer [iid=0, iname=null, imanager=null, imember=null, id=1, cid=6] [java.lang.NoSuchMethodException: cn.zx.ghjmaven.domain.Itemer.setIid([Ljava.lang.String;)]
	at ognl.OgnlRuntime.callAppropriateMethod(OgnlRuntime.java:1305)
	at ognl.OgnlRuntime.setMethodValue(OgnlRuntime.java:1494)
	at ognl.ObjectPropertyAccessor.setPossibleProperty(ObjectPropertyAccessor.java:85)
	at ognl.ObjectPropertyAccessor.setProperty(ObjectPropertyAccessor.java:162)
	at com.opensymphony.xwork2.ognl.accessor.ObjectAccessor.setProperty(ObjectAccessor.java:27)
	at ognl.OgnlRuntime.setProperty(OgnlRuntime.java:2332)
	at com.opensymphony.xwork2.ognl.accessor.CompoundRootAccessor.setProperty(CompoundRootAccessor.java:78)
	at ognl.OgnlRuntime.setProperty(OgnlRuntime.java:2332)
	at ognl.ASTProperty.setValueBody(ASTProperty.java:127)
	at ognl.SimpleNode.evaluateSetValueBody(SimpleNode.java:220)
	at ognl.SimpleNode.setValue(SimpleNode.java:301)
	at ognl.Ognl.setValue(Ognl.java:737)
	at com.opensymphony.xwork2.ognl.OgnlUtil.setValue(OgnlUtil.java:234)
	at com.opensymphony.xwork2.ognl.OgnlValueStack.trySetValue(OgnlValueStack.java:183)
	at com.opensymphony.xwork2.ognl.OgnlValueStack.setValue(OgnlValueStack.java:170)
	at com.opensymphony.xwork2.ognl.OgnlValueStack.setParameter(OgnlValueStack.java:148)
	at com.opensymphony.xwork2.interceptor.ParametersInterceptor.setParameters(ParametersInterceptor.java:318)
	at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:231)
	at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
	at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:239)
	at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
	at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:191)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
	at org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:73)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
	at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:91)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
	at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:252)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
	at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:100)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
	at com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:141)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
	at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:145)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
	at com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:171)
	at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
	at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:161)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
	at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
	at com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:193)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
	at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:189)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
	at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:54)
	at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:563)
	at org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)
	at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:99)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:313)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NoSuchMethodException: cn.zx.ghjmaven.domain.Itemer.setIid([Ljava.lang.String;)
	at ognl.OgnlRuntime.callAppropriateMethod(OgnlRuntime.java:1246)
	... 67 more
/-- Encapsulated exception ------------\
java.lang.NoSuchMethodException: cn.zx.ghjmaven.domain.Itemer.setIid([Ljava.lang.String;)
	at ognl.OgnlRuntime.callAppropriateMethod(OgnlRuntime.java:1246)
	at ognl.OgnlRuntime.setMethodValue(OgnlRuntime.java:1494)
	at ognl.ObjectPropertyAccessor.setPossibleProperty(ObjectPropertyAccessor.java:85)
	at ognl.ObjectPropertyAccessor.setProperty(ObjectPropertyAccessor.java:162)
	at com.opensymphony.xwork2.ognl.accessor.ObjectAccessor.setProperty(ObjectAccessor.java:27)
	at ognl.OgnlRuntime.setProperty(OgnlRuntime.java:2332)
	at com.opensymphony.xwork2.ognl.accessor.CompoundRootAccessor.setProperty(CompoundRootAccessor.java:78)
	at ognl.OgnlRuntime.setProperty(OgnlRuntime.java:2332)
	at ognl.ASTProperty.setValueBody(ASTProperty.java:127)
	at ognl.SimpleNode.evaluateSetValueBody(SimpleNode.java:220)
	at ognl.SimpleNode.setValue(SimpleNode.java:301)
	at ognl.Ognl.setValue(Ognl.java:737)
	at com.opensymphony.xwork2.ognl.OgnlUtil.setValue(OgnlUtil.java:234)
	at com.opensymphony.xwork2.ognl.OgnlValueStack.trySetValue(OgnlValueStack.java:183)
	at com.opensymphony.xwork2.ognl.OgnlValueStack.setValue(OgnlValueStack.java:170)
	at com.opensymphony.xwork2.ognl.OgnlValueStack.setParameter(OgnlValueStack.java:148)
	at com.opensymphony.xwork2.interceptor.ParametersInterceptor.setParameters(ParametersInterceptor.java:318)
	at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:231)
	at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
	at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:239)
	at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
	at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:191)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
	at org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:73)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
	at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:91)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
	at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:252)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
	at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:100)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
	at com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:141)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
	at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:145)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
	at com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:171)
	at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
	at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:161)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
	at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
	at com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:193)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
	at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:189)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
	at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:54)
	at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:563)
	at org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)
	at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:99)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:313)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)
\--------------------------------------/

Error correction results:

In fact, I saw this mistake from the beginning, but I can’t understand why it was wrong. Let’s talk about my file configuration. First, upload is a file type file. Second, this function is to upload photos. Then I found the first error. The ectype of the form element in the JSP I want to upload is not set to enctype = “multipart/form data”. The second error is that many people did not pay attention to it completely, that is, our form submission method should be method = “post”. And the key is this method.

analysis:

Enctype = “multipart/form data” indicates that the content submitted by the file is binary, which can handle photos well. Moreover, the get method must be attached to the link to submit, so all submitted methods are Stirng. So you should choose to use post. But it should also be noted that the use of post transmission is more secure and efficient.

——Solutions——————–

without a form set to enctype ‘multipart/form-data’.

To set the enctype of the form.  

<form id=”addItemerForm” action=”${ pageContext.request.contextPath }/bc/itemerAction_ save” method=”post” enctype=”multipart/form-data”>

The above is the method I found in Baidu search, but I didn’t upload the file, so I was very depressed. After reading the first line, I thought it must have something to do with ID, and then I tested it org.springframework.orm . hibernate3. Hibernatesystemexception error,

The reason for this error may be that the database primary key is self incrementing, but the background entity class primary key is not self incrementing. I just annotate the entity class ID with @ generatedvalue (strategy = identity)

Java project cannot import entity class package and service package, controller layer reports error, fix project setup is OK

Frame SSH

The previous packages are all OK. I create a management class of the service layer. When I add a new service, it appears:

Java project cannot import entity class package and service package, controller layer reports an error,

At the beginning, I thought that the package was wrong. I deleted the package in the controller layer and imported it again, but it still couldn’t work,

Check the cause of the error and find out

Then select fix project setup and it will be OK.

Record down, in Baidu did not find the answer, follow-up continuous attention, have to know the reason can leave a message, thank you~~

Failed to load resource: net::ERR_ CACHE_ READ_ Failure solution

When using elasticsearch word segmentation plug-in, kibana is used as the client management, and an error kibana did not load properly. Check the server output for more information

Failed to load resource: Net:: err_ CACHE_ READ_ FAILURE。 Cache read failed.

The reason is that I cleared the browser’s cache before and restarted the computer, which resulted in kibana’s failure to read the cache.

Solution: force the browser cache to refresh again.

When OFBiz project starts, caused by: org.codehaus.groovy . control.MultipleCompilationErrorsException : startup failed:

Error in console:

Caused by: org.ofbiz.base . util.GeneralException : Error loading Groovy script at [ component://zxdoc/webapp/zxdoc/WEB-INF/actions/index/PrepareBrowserInfo.groovy ]:  (startup failed:
component://zxdoc/webapp/zxdoc/WEB-INF/actions/index/PrepareBrowserInfo.groovy : 4: A transform used a generics containing ClassNode org.ofbiz.service . engine.GroovyBaseScript for the super class PrepareBrowserInfo directly. You are not supposed to do this. Please create a new ClassNode referring to the old ClassNode and use the new ClassNode instead of the old one. Otherwise the compiler will create wrong descriptors and a potential NullPointerException in TypeResolver in the OpenJDK. If this is not your own doing, please report this bug to the writer of the transform.

Translation: convert to include classnode org.ofbiz.service Generics of. Engine. Write groovybasescript directly for the superclass preparebrowserinfo. You shouldn’t do that. Create a new class node that references the old class node and use the new class node instead of the old class node. Otherwise, the compiler will create incorrect descriptors and potential nullpointerexceptions in openjdk’s typeresolver. If you did not do this yourself, report this error to the author of the transformation.
 @ line 4, column 1.
   UserAgent ua = UserAgent.parseUserAgentString ( request.getHeader (“User-Agent”));

Problems error:

Description    Resource    Path    Location    Type
Multiple Groovy compilers found on classpath. Continuing with compilation will produce unpredictible results. Remove a compiler before continuing.
Found 2.2 and 2.5    ofbiz-release14.12        ofbiz-release14.12    Groovy compiler mismatch problem

 

Solution of server not running yetexception in HBase

I encountered a server not running yetexception error while working today. The symptom is that it is normal to enter HBase shell, but this error will be thrown when executing any instruction.

There is no error message when checking the log. At first I thought there was HBase process not up, but the JPS command showed that all started.

It’s a little tricky.. Because the test server was restarted a few days ago, and then I did some other work on it. So it is suspected that the problem is port occupancy.. However.. Neither..

I had no choice, so I moved out the ultimate solution: reloading Hadoop and HBase. After the official configuration is completed. HBase is miraculously good..

I once suspected that it was my configuration.. However.. Neither..

Finally found a solution on the Internet, because Hadoop is in a safe mode. So HBase operation will be abnormal. I’m not sure how it works. The solution is to manually exit safe mode

./hadoop dfsadmin -safemode leave

Then restart HBase and solve the problem

org.springframework.orm . hibernate3. Hibernatequeryexception: XXX is not mapped solution

There are several reasons as follows:
1

1. The HBM file association in spring is not configured well.

2. The fields in the HBM file are missing.

Solution:

1. Add fully qualified domain name when writing HQL (not recommended)

2. Configure HBM Association in spring (20 has been like this for several times)
in this paper, we introduce a new method to configure HBM Association in spring

When Tomcat starts: IOException while loading persistent sessions: java.io.EOFException Solutions for

This is due to the fact that when Tomcat was shut down abnormally last time, some active sessions were persisted (as some temporary files). When it was restarted, Tomcat tried to recover the persistent data of these sessions, but failed to read them. This exception does not affect the use of the system.

Solution: all the files in Catalina directory can be deleted.
all the files in Catalina directory can be deleted

Solution to report undefined a error when using jquery

When the project uses easyUI, the foreground reports an error, type error: A is undefined. I see that the error location is actually the source code of JQ… It’s impossible. I searched a lot of information on the Internet, but I didn’t solve the problem. After nearly a month’s thinking, I seem to have found the cause of this problem. It may not be right. It only represents personal profile. If there is a positive solution, please let me know. Thank you.

The error screenshot is as follows:

The reasons are as follows: I have such a piece of code in JS:

 $('#cargo_info').datagrid().datagrid('getPager');

Note that this code is not put in any function, nor is it wrapped with $(function () {}). Just this sentence is put directly in JS code. This is all the cases that report this error in my project. My preliminary analysis is because JS thinks that there is no method to call this sentence, so it reports an error.

Solution: wrap the isolated statements in JS with $(function () {}), or write them in a function,

<pre name="code" class="javascript">$(function(){
    $('#cargo_info').datagrid().datagrid('getPager');
})



Like this, you can’t make a mistake at the front desk







					

		
		
	

							
	

				

			
						

				Solution of toast not displaying in Android
			

								


				

			


Today, in the test, toast could not be displayed. I analyzed several possibilities


1. There is a problem with the context. The corresponding context may be incorrect


2. The value of message is null


But I checked it several times and there was no problem…. Looking up information on the Internet, I said that I couldn’t update UI in sub thread, but I didn’t open thread… After a night of silence. I found the problem. After using toast, I didn’t call the show method… That’s why I don’t show it. It’s too sloppy…