Category Archives: Error

Springboot integrates redis factory method ‘redisconnectionfactory’ threw exception; nested exception is

Factory method ‘redisConnectionFactory’ threw exception; nested exception is java.lang. NoClassDefFoundError: org/apache/commons/pool2/impl/GenericObjectPoolConfig
springboot integration redis error

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'redisUtil': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'redisTemplate' defined in class path resource [com/fhlkd/config/RedisConfig.class]: Unsatisfied dependency expressed through method 'redisTemplate' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'redisConnectionFactory' defined in class path resource [org/springframework/boot/autoconfigure/data/redis/LettuceConnectionConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory]: Factory method 'redisConnectionFactory' threw exception; nested exception is java.lang.NoClassDefFoundError: org/apache/commons/pool2/impl/GenericObjectPoolConfig
	at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessProperties(CommonAnnotationBeanPostProcessor.java:337)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1429)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517)
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:879)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:878)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550)
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747)
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:315)
	at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:125)
	at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:99)
	at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:124)
	... 63 more
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'redisTemplate' defined in class path resource [com/fhlkd/config/RedisConfig.class]: Unsatisfied dependency expressed through method 'redisTemplate' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'redisConnectionFactory' defined in class path resource [org/springframework/boot/autoconfigure/data/redis/LettuceConnectionConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory]: Factory method 'redisConnectionFactory' threw exception; nested exception is java.lang.NoClassDefFoundError: org/apache/commons/pool2/impl/GenericObjectPoolConfig
	at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:787)
	at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:528)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1338)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:557)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517)
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:207)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.resolveBeanByName(AbstractAutowireCapableBeanFactory.java:454)
	at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.autowireResource(CommonAnnotationBeanPostProcessor.java:543)
	at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.getResource(CommonAnnotationBeanPostProcessor.java:513)
	at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor$ResourceElement.getResourceToInject(CommonAnnotationBeanPostProcessor.java:653)
	at org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:224)
	at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:116)
	at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessProperties(CommonAnnotationBeanPostProcessor.java:334)
	... 79 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'redisConnectionFactory' defined in class path resource [org/springframework/boot/autoconfigure/data/redis/LettuceConnectionConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory]: Factory method 'redisConnectionFactory' threw exception; nested exception is java.lang.NoClassDefFoundError: org/apache/commons/pool2/impl/GenericObjectPoolConfig
	at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:645)
	at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:625)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1338)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1177)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:557)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517)
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
	at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1287)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1207)
	at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:874)
	at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:778)
	... 95 more
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory]: Factory method 'redisConnectionFactory' threw exception; nested exception is java.lang.NoClassDefFoundError: org/apache/commons/pool2/impl/GenericObjectPoolConfig
	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185)
	at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:640)
	... 109 more
Caused by: java.lang.NoClassDefFoundError: org/apache/commons/pool2/impl/GenericObjectPoolConfig
	at org.springframework.data.redis.connection.lettuce.LettucePoolingClientConfiguration$LettucePoolingClientConfigurationBuilder.<init>(LettucePoolingClientConfiguration.java:94)
	at org.springframework.data.redis.connection.lettuce.LettucePoolingClientConfiguration.builder(LettucePoolingClientConfiguration.java:51)
	at org.springframework.boot.autoconfigure.data.redis.LettuceConnectionConfiguration$PoolBuilderFactory.createBuilder(LettuceConnectionConfiguration.java:136)
	at org.springframework.boot.autoconfigure.data.redis.LettuceConnectionConfiguration.createBuilder(LettuceConnectionConfiguration.java:100)
	at org.springframework.boot.autoconfigure.data.redis.LettuceConnectionConfiguration.getLettuceClientConfiguration(LettuceConnectionConfiguration.java:86)
	at org.springframework.boot.autoconfigure.data.redis.LettuceConnectionConfiguration.redisConnectionFactory(LettuceConnectionConfiguration.java:68)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)
	... 110 more
Caused by: java.lang.ClassNotFoundException: org.apache.commons.pool2.impl.GenericObjectPoolConfig
	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	... 121 more
because no corresponding JARs found
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-pool2</artifactId>
        </dependency>

Python Importerror: DLL load failed: the page file is too small to complete the operation.

Python code training neural network: “Imerror: DLL load failed: page file is too small to complete operation.”
This problem can arise in two ways.
(1) not only in running a project to another project a python program is running, turn off it.
② The Windows operating system does not support Python’s multi-process operation. The place where the neural network uses multiple processes is on the data set load, so set the num_workers parameter in the DataLoader to 0.

    train_loader = torch.utils.data.DataLoader(
        train_dataset,
        batch_size=16,
        shuffle=True,
        num_workers=0,  # SET 0
    )

[Android] method of removing title bar and using request window feature (Window.FEATURE_ NO_ Title); why does it fail

Use RequestWindowFeature (window.feature_no_title) to hide the cause of the title bar failure.
might be an activity that inherits from AppCompatActivity.
Create an activity that inherits an activity. Create an activity that inherits an activity.
The first method is often used when getting started:

requestWindowFeature(Window.FEATURE_NO_TITLE);
//Remove the title bar Note that this sentence must be written in front of the setContentView() method, otherwise it will report an error

The second is defined in the AndroidManifest.xml file

<application android:theme="@android:style/Theme.NoTitleBar">

Wrote, then the application will remove the title bar, if just want to get rid of a certain Activity of the title bar, you can add this property to the Activity inside the tag
the third: this is not commonly used in general application, is in the res/values below to create a new style. The XML file

<?xml version="1.0" encoding="UTF-8" ?>
<resources>
    <style name="notitle">
        <item name="android:windowNoTitle">
            true
        </item>
    </style>
</resources>

In this way, we have a custom style, which is equivalent to a theme, and then define it in the AndroidManifest.xml file, which also removes the title bar

<application 
    android:icon="@drawable/icon" 
    android:label="@string/app_name" 
    android:theme="@style/notitle">

Create an Activity that inherits AppCompatActivity by default

getSupportActionBar().hide();
//Remove the title bar Note that this sentence must be written after the setContentView() method

2 You can do the following configuration in AndroidManifest.xml so that there is no title bar

<application
   android:theme="@style/Theme.AppCompat.NoActionBar">

[Solved] removeerror: ‘requests’ is a dependency of CONDA and cannot be removed from

[Solved]RemoveError: ‘requests’ is a dependency of conda and cannot be removed from conda’s operating environment.

Collecting package metadata: done
Solving environment: done

Downloading and Extracting Packages
certifi-2018.1.18    | 144 KB    | ############################################################################ | 100%
mkl-2018.0.1         | 155.2 MB  | ############################################################################ | 100%
freetype-2.9.1       | 475 KB    | ############################################################################ | 100%
scipy-1.0.0          | 13.0 MB   | ############################################################################ | 100%
......
......
pyparsing-2.3.1      | 54 KB     | ############################################################################ | 100%
kiwisolver-1.0.1     | 60 KB     | ############################################################################ | 100%
qt-5.6.2             | 55.6 MB   | ############################################################################ | 100%
setuptools-38.4.0    | 540 KB    | ############################################################################ | 100%
matplotlib-2.2.2     | 6.5 MB    | ############################################################################ | 100%
six-1.12.0           | 21 KB     | ############################################################################ | 100%
openssl-1.0.2n       | 5.4 MB    | ############################################################################ | 100%
pyqt-5.6.0           | 4.5 MB    | ############################################################################ | 100%
zlib-1.2.11          | 236 KB    | ############################################################################ | 100%
tornado-5.1.1        | 665 KB    | ############################################################################ | 100%
sqlite-3.22.0        | 907 KB    | ############################################################################ | 100%
cycler-0.10.0        | 8 KB      | ############################################################################ | 100%
Preparing transaction: done
Verifying transaction: failed

RemoveError: 'requests' is a dependency of conda and cannot be removed from
conda's operating environment.

conda update --force condaconda update –force conda

How to Solve RemoveError: setuptools is a dependency of conda and cannot be removed from conda

conda remove c> create : conda create : conda create : conda remove : conda create :

RemoveError: ‘setuptools’ is a dependency of Conda and cannot be removed from Conda

I checked a bunch of blogs and they all suggested updating Conda.
conda update --force-reinstall conda
The problem came again. After the command was entered, the process kept spinning in circles, and the terminal did not show any idea of updating. Angry dead an ！！！！
I fat tiger not letter can not treat you!!
Solution:
enter the command: gedit. Condarc
the HTTPS instead of HTTP from the original image of the source can be updated again
I will be the original. Condarc file to the following form, for reference only.

ssl_verify: true
channels:
  - http://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/
show_channel_urls: true

conda update --force-reinstall conda Be able to normal use after
conda remove or conda create command

Webpack Pack and compress ES6 files with errors: ERROR in js/xxxxxx.js from UglifyJs Unexpected token punc ()

Build project, the following error appears

ERROR in js/xxxxxx.js from UglifyJs
Unexpected token: [xxxx.js], expected: punc

It was found that uglifyjs could not resolve the problem of ES6

Solutions:

Upgrade uglifyjs version and modify package.json

  "uglifyjs-webpack-plugin": "^1.0.0-beta.3",

Prod.conf.js

var UglifyJSPlugin = require('uglifyjs-webpack-plugin')
# Modify the plugin in plugins
        new UglifyJSPlugin({
          uglifyOptions: {
            compress: {
              drop_debugger: true, // Note debugger
              drop_console: true, // Note console
              pure_funcs:['console.log'] // remove console
            },
          },
          sourceMap: false,   // Removing the .map file generated after packaging
          parallel: true,
        }),


Runnpm run build, Done!

After SpringBoot starts, exit the console directly and display Process finished with exit code 1

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Problem Description:

When this problem occurs, there is no output from the console, and the process exits Process finished with exit code 1

problem solved:

Use try catch to catch the exception and find that there is still no log

public  static  void main( String [] args) {
        try {
            SpringApplication.run(ApiBdszApplication. class , args);
        } catch ( Exception e){
            e.printStackTrace();
        }
    }
But as a Java programmer with countless pits, we know that Exception is not the top exception class, so we replaced it with Throwable 

public  static  void main( String [] args) {
        try {
            SpringApplication.run(ApiBdszApplication. class , args);
        } catch ( Throwable e){
            e.printStackTrace();
        }
    }
At this time, except for the error content in the log printing, follow the log prompts to solve

At last

During the search for this problem, I read many online solutions, and finally came up with three solutions:
1. Use the above capture method
2. Check whether the springboot version and springcloud version match
3. Check whether you have written some configuration files wrong.

PLSQL even oracle11g problem on 64-bit machine: SQL*Net not properly installed and ORA-12154:TNS: cannot handle service name

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Today, a colleague encountered a problem when installing our system to a customer.

Background: colleagues installed as follows:

       The server is a small machine, a virtual machine made on the small machine. WIN2003 operating system is installed with 64 bits.

       Database: oracle11g.

       PLSQL7.5

On a 64-bit machine, the following error is reported when PLSQL is accessed:

Initialization error
SQL*Net not properly installed

OracleHomeKey:
OracleHomeDir:

I searched on the Internet and found that it is a 64-bit machine, and a 32-bit Oracl client needs to be installed for PLSQL to access it correctly.

After installing the Oracl client, this problem was solved.

Then came another problem: when logging in with PLSQL, an error ORA-12154: TNS: Unable to process the service name was reported . I changed the listener.ora and tnsname.ora under D:\Oracle\product\11.2.0\dbhome_1\NETWORK\ADMIN, but it still doesn’t work. After various attempts, the error persisted.

 

I have no choice but to install an Oracl client and PLSQL7.5 on another LAN machine. When installing PLSQL7.5, the default path is c:\program files (x86)\PLSQLDeveloper, but an error will be reported, roughly Saying that NET might have a problem, I changed the path to D:\tool\PLSQLDeveloper. After configuring tnsname.ora of an Oracl client, run PLSQL again, and it is normal and connected.

 

Go back, check the PLSQL on the server, the installation path is the default path c:\program files (x86)\PLSQLDeveloper, uninstall and reinstall. The installation path has been changed. After finishing, run PLSQL again, it is normal. Haha