以下是我的问题Spring Data JPA.
Q1是Spring Data JPA,ORM?如果不是那么,它是什么?
Q2弹簧数据JPA有什么优势?
#include<Windows.h>
#include <GL/freeglut.h>
#include <GL/glew.h>
#include<gl/GLU.h>
#include<gl/GL.h>
#include<iostream>
using namespace std;
const int width=1280;
const int height=960;
void OnInit();
void OnShutdown();
void OnResize();
void OnRender();
int main(int argc, char** argv) {
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DEPTH | GLUT_DOUBLE |
GLUT_RGBA);
glutInitContextVersion (3,7 );
glutInitContextFlags (GLUT_CORE_PROFILE | GLUT_DEBUG);
glutInitContextProfile(GLUT_FORWARD_COMPATIBLE);
glutInitWindowSize(width, height);
glutCreateWindow("getting started with understanding");
glewExperimental = GL_TRUE;
GLenum err = glewInit();
if (GLEW_OK != err){
cerr<<"Error: "<<glewGetErrorString(err)<<endl;
} else {
if (GLEW_VERSION_3_3)
{
cout<<"Driver supports OpenGL 3.3\nDetails:"<<endl;
}
}
cout<<"\tUsing glew "<<glewGetString(GLEW_VERSION)<<endl; …Run Code Online (Sandbox Code Playgroud) 我怎么能promisify redis这样才能使用then?
我试图宣传客户:
var redis = require('redis');
Promise.promisifyAll(redis.RedisClient.prototype);
var client = redis.createClient();
client.on('connect', function(){
console.log('Redis connection is up');
client.lrange('abc',0,3).then(function(result){
console.log(result);
res.send(200)
});
});
Run Code Online (Sandbox Code Playgroud)
但它回应错误:
client.lrange(...).然后不是一个函数
PS:回调代码工作正常,这意味着服务器运行正常.