java

Springboot Integrates Springcloud

## 1\. SpringCloud features SpringCloud focuses on providing a good out-of-the-box experience fo…

doporos created at Sept. 15, 2021, 3:57 p.m.

Several Solutions For Optimizing If-Else Code In Java

## Preface Some status of the development system, such as order status: the database storage is …

doporos created at Sept. 15, 2021, 3:29 p.m.

Cannot Call Senderror() After The Response Has Been Committed

## frame springboot+IDEA+spring security oauth2 ## background When the user logs in to obt…

doporos created at Sept. 13, 2021, 4:57 p.m.

Error Creating Document Instance. And Byte 1 Of The Utf-8 Sequence Of Bytes Is Invalid

## MyBatis related bug records For the study of MyBatis, I encountered many inexplicable bugs fr…

doporos created at Sept. 13, 2021, 4:37 p.m.

Intellij Idea Reported Could Not Autowire. No Beans Of'xxxx' Type Found

## 1\. Problem description In Idea’s spring project, I often encounter the error message “Could …

doporos created at Sept. 12, 2021, 3:07 p.m.

Error Creating Bean With Name ‘Configurationpropertiesbeans‘

## problem phenomenon When the SpringCloud system is built in IDEA, a red error is displayed whe…

doporos created at Sept. 11, 2021, 3:59 p.m.

Error 11668 --- [ Restartedmain] O.S.Boot.Springapplication : Application Run Failed

## error message ```plaintext Error starting ApplicationContext. To display the conditions repo…

doporos created at Sept. 7, 2021, 3:39 p.m.

Feign.Codec.Encodeexception: Type Definition Error: [Simple Type, Class Java.Util.Collections$3]

When I saw the request, I thought of the request parameter problem, and I didn’t know where the pro…

doporos created at Sept. 7, 2021, 3:35 p.m.

Error: A Jni Error Has Occurred, Please Check Your Installation And Try Again

## error description The error appears after installing `zookeeper` and `flume`, `hbase` cannot …

doporos created at Sept. 2, 2021, 2:41 p.m.

Http Status 500 – Internal Server Error Type Exception Report Message Servlet Execution Threw An Ex

## cause of error The error occurred because `BeanUtils` has not been added to the `Servlet` …

doporos created at Sept. 2, 2021, 2:30 p.m.

Error Updating Database. Cause: Java.Sql.Sqlexception: Field 'Book_Doc_Id' Doesn't Have A Default Value

This error is reported because: 1. When the id primary key is set, it is not self-incremented …

doporos created at Sept. 1, 2021, 10:15 p.m.

Artifact Example:Web Exploded: Error During Artifact Deployment

I debugged for two hours and didn't change it, but it finally changed After running tomcat, Arti…

doporos created at Aug. 31, 2021, 4:23 p.m.

Intellij Idea Error: (24, 35) Java: Constant String Too Long

When assigning a long and long string of text to a string, idea fails to compile and an error is re…

doporos created at Aug. 25, 2021, 4:19 p.m.

Swagger3.0 (Springboot) Eliminate Basic-Error-Controller

1\. To create a new springboot project, you can quickly generate a springboot project through [http…

doporos created at Aug. 23, 2021, 12:30 p.m.

The Difference Between Error, Exception And Runtimeexception

First find out the relationship between the three of them. Both `Error` and `Exception` inherit fro…

doporos created at Aug. 18, 2021, 12:55 p.m.
doporos created at Aug. 17, 2021, 1:24 p.m.

Error Creating Bean With Name ‘Httpputformcontentfilter‘

## Problem Description After the problem occurred, I checked many things on Baidu for the first …

doporos created at Aug. 16, 2021, 1:06 p.m.

Error: A Jni Error Has Occurred, Please Check Your Installation And Try Again

## error message ```plaintext ERROR: A JNI error has occurred, please check your installation a…

doporos created at Aug. 16, 2021, 12:26 p.m.

War Exploded: Error During Artifact Deployment. See Server Log For Details When Start Tomcat In Idea

## error message ```plaintext Artifact task02_demo01:war exploded: Error during artifact deploy…

doporos created at Aug. 11, 2021, 3:14 p.m.

Caused By: Java.Lang.Illegalstateexception: Ambiguou There Is Already ‘Xxxxxxcontroller‘ Bean Method

## error message ```plaintext Caused by: java.lang.IllegalStateException: Ambiguous mapping. Ca…

doporos created at Aug. 11, 2021, 2:55 a.m.

Request Execution Error. Endpoint=Defaultendpoint{ Serviceurl=‘Http://127.0.0.1:6668/Eureka/}

## error message ```plaintext 2021-08-07 21:55:27.121 ERROR 8736 --- [nfoReplicator-0] c.n.d.s.…

doporos created at Aug. 10, 2021, 5:31 p.m.

Java.Lang.Stackoverflowerror: Null

```plaintext 2021-03-19 15:02:45.179 [http-nio-8081-exec-6] ERROR org.apache.catalina.core.Contain…

doporos created at Aug. 9, 2021, 3:45 p.m.

Spark Error Netty.Inbox: Ignoring Error Org.Apache.Spark.Sparkexception: Couldnot Find Coarsegrained

## error message ```plaintext ERROR org.apache.spark.rpc.netty.Inbox: Ignoring error org.apach…

doporos created at Aug. 8, 2021, 3:31 p.m.

Mybatis Uses Zookeeper To Save The Configuration Of The Database, Which Can Be Dynamically Refreshed

Core key point: Encapsulate a DataSource and rewrite getConnection to achieve Let's look at it s…

doporos created at Aug. 5, 2021, 2:24 p.m.

Java.Lang.Nullpointerexception Exception Handling

## exception ```plaintext java.lang.NullPointerException at java.util.Properties$LineReader.r…

doporos created at Aug. 4, 2021, 3:16 p.m.

Unable To Make Protected Final Java.Lang.Class Java.Lang.Classloader.

## error message ```plaintext Unable to make protected final java.lang.Class java.lang.ClassLoa…

doporos created at Aug. 3, 2021, 12:06 p.m.

Error: A Jni Error Has Occurred, Please Check Your Installation And Try Again

## reason It is because the version of javac used for compilation is inconsistent with the versi…

doporos created at July 30, 2021, 5:34 p.m.

Json Parse Error: Cannot Deserialize Instance Of `Java.Util.Arraylist` Out O

## description Last week I wrote about the external support of the underlying interface of Dubbo…

doporos created at July 30, 2021, 5:15 p.m.

Kill All Java Processes Under Windows 1.Ps -Ef | Grep Java 2.Taskkill

```plaintext Administrator@Administrator MINGW64 ~/Desktop $ ps -ef | grep java Administ 4968…

doporos created at July 30, 2021, 4:57 p.m.

Gitlab-Error: Rpc Failed; Result=22, Http Code = 500

In the process of operating Gitlab for daily code push and pull, I suddenly encountered an exceptio…

robot18 created at July 12, 2021, 3:43 p.m.

Allowedorigins Cannot Contain The Special Value "*" Gateway

## description > java.lang.IllegalArgumentException: When allowCredentials is true, allowedOrigi…

robot18 created at July 10, 2021, 7:38 a.m.

Cartesian Product: Java Code

I haven't touched the program for a long time, and picked up Java again and wrote a Cartesian produ…

robot18 created at July 9, 2021, 2:02 p.m.

Compilation Error Org.Eclipse.Jdt.Internal.Compiler.Classfm

## Preface I found that I encountered a lot of pitfalls when configuring the maven project in th…

robot18 created at July 7, 2021, 10:07 a.m.

Rn Running Project Error: Unable To Resolve Module

## description Today I encountered a problem with the debugging demo. I used the `react-native r…

robot18 created at July 7, 2021, 9:33 a.m.

Ssh Integration Error: Beancreationexception: Error Creating Bean

## description When you encounter an error while working on the project, record it. error: …

robot18 created at July 7, 2021, 8:43 a.m.

Mysql:[Err] 1064 You Have An Error In Your Sql Syntax

## description Problems with using MySql to build tables When using Navicat Premium to run sq…

robot18 created at July 6, 2021, 5:13 p.m.

Error Creating Bean With Name 'Sessionfactory' Defined

## description > Error creating bean with name 'sessionFactory' defined in class path resource \…

robot18 created at July 5, 2021, 7:22 a.m.

How To Customize Error Page Springboot

## introduction I don’t know if you have noticed it. If the request goes wrong on the current ma…

robot18 created at July 5, 2021, 6:20 a.m.

Solve The Problem Of Nginx Proxy Spring Boot Tomcat Project Error

## description Problem scenario: All business logic is normal without passing nginx proxy, but s…

robot18 created at July 4, 2021, 11:57 a.m.

Error Starting Applicationcontext

## Problem Description Today, the project started reporting an error. I encountered this error. …

robot18 created at July 3, 2021, 6:18 p.m.