It took a day to fix Springboot + Mybatis
I have written the strategic logic for several months, which is a bit silly. To do database and table splitting, it took almost a day to use the simplest Mybatis in spring boot. The ability to solve macro problems has declined a lot after a long time in logic details.
To use Mybatis in spring boot, you need to do the following steps:
1. use S ...
Posted by shmeeg on Mon, 20 Jan 2020 04:58:40 -0800
Deep understanding of JVM class loading mechanism
Class loading process
A type starts from being loaded into the memory of the virtual machine and ends at being unloaded. Its whole life cycle will go through seven stages: Loading, Verification, Preparation, Resolution, Initialization, Using and Unloading Collectively referred to as Linking, as shown in the figure:
The order of loading, verify ...
Posted by sulin on Mon, 20 Jan 2020 03:17:20 -0800
Wang Shuang assembly language second edition curriculum design 2
Wang Shuang course design of assembly language 2
The most important thing to master a programming language is practice. Wang Shuang's teacher's Curriculum Design II, if you write 400 to 800 lines of code completely, and complete this curriculum design independently, you will be proficient in 16 bit a ...
Posted by Logical1 on Sun, 19 Jan 2020 22:13:48 -0800
Quick guide to integrating apollo with spring boot
>At present, there are three popular configuration center frameworks on the market: Spring CLoud Config ,Alibaba Nacos as well as Ctrip apollo , we call on the corresponding architecture group to use Apollo.
Work Flow
Simple explanation:
In the above figure, there are three environments FAT, UAT and PROD, each of which has two sets of Confi ...
Posted by sbinkerd1 on Sun, 19 Jan 2020 18:53:25 -0800
nginx event module implementation details
In Detailed structure of nginx event module In, we explain the overall workflow of the event module of nginx, and focus on the role of each method of organizing the event module. This paper mainly focuses on the entire process, and explains the implementation details of the event module of nginx from the source point of view.
1. ngx_events_bloc ...
Posted by modplod on Sun, 19 Jan 2020 18:02:36 -0800
Design mode of Dahua, decorator mode of structural mode
Overview of structural mode
Overview of structural mode
Decorator Pattern allows you to add new functionality to an existing object without changing its structure. This type of design pattern belongs to structural pattern, which is a wrapper for existing classes.
This pattern creates a decoration cl ...
Posted by Slashscape on Sun, 19 Jan 2020 06:40:08 -0800
String concatenation: concat() and "+" operators
Suppose strings a and b:
a += b
a = a.concat(b)
Behind the scenes, are they the same thing?
Here you decompile concat as a reference. I also want to be able to decompile the + operator to see what it does.
public String concat(String s) {
int i = s.length();
if (i == 0) {
return this;
}
else {
char ac ...
Posted by rashu.dr on Sun, 19 Jan 2020 03:59:36 -0800
tensorflow2.0 series: Eagle execution and Auto Graph
Catalog
Disadvantages of static graph
Eager mode
Basic features of Eagle execution
Support for numpy
Auto Graph - dynamic graph
static analysis VS dynamic flow
Visible domain of local parameter
The use of python collections data in tensorflow control flow
Dimension and data type of sensor in ten ...
Posted by shadypalm88 on Sun, 19 Jan 2020 03:18:26 -0800
Programming exercises in Chapter 3 of C++ Primer Plus
outline
The programming exercises in this chapter mainly focus on the application of different data types (when to use what data types are better) and type conversion (the definition of data types is different from the type required in actual calculation)
3.1 feet and inches for height
#include<i ...
Posted by SilverFoxDesign on Sun, 19 Jan 2020 02:01:04 -0800
List de duplication problems and methods
How to de duplicate the list, which is often asked in the interview, is used to check your mastery of the list data structure and related methods, and to show whether your java foundation is solid.As we all know, set sets are characterized by no repeating elements. If the data type in the collection is the basic data type, you can directly conv ...
Posted by kurky on Sun, 19 Jan 2020 01:15:26 -0800