huzhennan

package com.example.demo;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.stream.Collectors;

huzhennan

#!/bin/bash
#
# description: Apache Tomcat init script
# processname: tomcat  
# chkconfig: 234 20 80  
#
#
# Copyright (C) 2014 Miglen Evlogiev
#
# This program is free software: you can redistribute it and/or modify it under

huzhennan

MySQL

Getting started:

• http://www.sqlteaching.com/
• https://www.codecademy.com/courses/learn-sql

Related tutorials:

• MySQL-CLI
• Analyzing Business Metrics

huzhennan

function start_proxy() {
    export HTTP_PROXY=http://localhost:56789
    export HTTPS_PROXY=http://localhost:56789
}

function stop_proxy() {
    export HTTP_PROXY=""
    export HTTPS_PROXY=""
}

huzhennan

/*
  Source: http://www.littlerobots.nl/blog/Handle-Android-RecyclerView-Clicks/
  USAGE:
   
  ItemClickSupport.addTo(mRecyclerView).setOnItemClickListener(new ItemClickSupport.OnItemClickListener() {
      @Override
      public void onItemClicked(RecyclerView recyclerView, int position, View v) {
          // do it
      }
  });

huzhennan

Thanks to Jason Roelofs for his article at http://jasonroelofs.com/2012/03/12/manage-and-monitor-resque-with-upstart-and-monit/ which got me most of the way there.

huzhennan

* Only the releases of the stable versions are enumerated in principle.  The releases of the unstable versions especially considered to be important are indicated as "not stable."
* The branches used as the source of each releases are specified, and the branching timing of them are also shown.  BTW, before subversionizing of the repository, the term called "trunk" was not used, but this list uses it in order to avoid confusion.
* In order to show a historical backdrop, big conferences (RubyKaigi, RubyConf and Euruko) are also emurated.  About the venues of such conferences, general English notations are adopted, in my hope.
* ruby_1_8_7 branch was recut from v1_8_7 tag after the 1.8.7 release becaouse of an accident.
* 1.2.1 release was canceled once, and the 2nd release called "repack" was performed.  Although there were other examples similar to this, since the re-releases were performed during the same day, it does not write clearly in particular.
* Since 1.0 was released with the date in large quantities,

huzhennan

Rails Migration

http://guides.rubyonrails.org/migrations.html

Migrations methods:

• add_column
• add_index
• change_column
• change_table
• create_table
• drop_table

huzhennan

Chapter 1 - Object Oriented Design

The purpose of design is to allow you to do design later, and it's primary goal is to reduce the cost of change.

SOLID Design:

• Single Responsibility Principle: a class should have only a single responsibility
• Open-Closed Principle: Software entities should be open for extension, but closed for modification (inherit instead of modifying existing classes).
• Liskov Substitution: Objects in a program should be replaceable with instances of their subtypes without altering the correctness of that program.
• Interface Segregation: Many client-specific interfaces are better than one general-purpose interface.

huzhennan

    ```
    // android 用浏览器打开url地址
    private void openCloudPage(String url) {
        Uri page = Uri.parse(url);
        Intent intent = new Intent(Intent.ACTION_VIEW, page);

        if (intent.resolveActivity(getPackageManager()) != null) {
            startActivity(intent);
        }
    }```