Programmer Think

The default data format returned by the authentication server is as follows: { "error": "unsupported_grant_type", "error_description": "Unsupported grant type: password1" } The above return result is very unfriendly, and the front-end code is also difficult to determine what the error is, so we ...

This article is a very simple mvc api framework, which is only used as the parsing method of the entry api, and this is not mvc framework, because there is no view layer, after all, most of them are front-end and back-end separation, of course, the view layer can also be provided, because only view is returned as text. GitHub address: https:// ...

We mentioned GC before, but when more and more objects are referenced in Java, there will be insufficient memory space, resulting in the error OutOfMemoryError and application termination. So why can't GC collect more objects at this time? This is related to the reference types mentioned today.<!-- more --> First of all, starting from JDK ...

I. other precautions 1. For methods with static, we said that we need to use the method of "class name", but in fact, we can use the method of "reference" to access this method.   package com.bjpowernode.java_learning; ​ public class D43_ { public static void main(String[] args) { Test3.test3(); ...

1 related links ERNIE Code: https://github.com/PaddlePaddle/ERNIE/tree/develop/ERNIE 2 specific use 2.1 use steps Download data: Download the model (including configuration files and dictionaries) and task data. Decompress the model and task data, start the training, execute bash script / run ABC ...

This project is built by using spring cloud. You need to pay attention to the version when integrating with nacos. Otherwise, you may refresh the configuration when you restart the project, and it cannot be hot updated. The following is the version map: First of all, Download Nacos server, and don't attach the project address of github her ...

Then in the first part, before deploying Kubernetes, make sure that etcd, flannel and docker work normally, otherwise, solve the problem first and then continue. Three main roles are deployed: Kube apiserver Kube Controller Manager Kube scheduler 1. Generate Certificate (on the master) 1 establish a directory to store certificates cat > ca- ...

I. When can't this be omitted? Let's give an example to illustrate class User2{ private int id; public int getId() { return id; } public void setId(int id) { this.id = id;//If it's written here id=id，Then according to the principle of proximity, the first id It's the formal parameter. The second one. id Als ...

Server list: Server name operating system IP address service test03 Ubuntu 16.04.4 192.168.1.58 Prometheus, Alertmanager,grafana test02 Ubuntu 16.04.4 192.168.1.57 Node_exporter 1. Install prometheus Download address on Prometheus official website: https://prometheus.io/download/ Download prometheus root@test03:~# wget https://g ...

Today, I'd like to talk a little bit about JSON data processing. In recent work, because we want to update the database data to elastic search in real time, we encounter some problems of JSON data processing in practice. real-time data The real-time data acquisition is realized by the open-source canal component of Alibaba, and transmitted to t ...