zxh

package com.paddypower.financials.market.management.rest.logging;

import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

import javax.servlet.Filter;
import javax.servlet.FilterChain;

zxh

# Using ssh-keygen to export the key in the .pem format worked for me.

ssh-keygen -f id_rsa.pub -m 'PEM' -e > id_rsa.pem`
# Then simply copy the .pem key as necessary.

# For reference:

# the -f id_rsa.pub portion indicates the input file to read from
# -m 'PEM indicates a PEM filetype
# the -e option indicates that the output will be exported

zxh

# show all scala versions
brew search scala

# install specific version, maybe scala 2.11
brew install scala@2.11

# unlink current scala version
brew unlink scala

# link new scala version

zxh

on El Capitan, after installing the brew...

$ brew update
$ brew tap caskroom/cask
$ brew install Caskroom/cask/java

And Java 8 will be installed at /Library/Java/JavaVirtualMachines/jdk1.8.xxx.jdk/

export JAVA_HOME=`/usr/libexec/java_home -v 1.8`

zxh

package main

import (
	"fmt"
	"net/url"
)

func main() {
	fmt.Println("Path参数中对空格的转义："+url.PathEscape("hello world"))
	fmt.Println("Query参数中对空格的转义："+url.QueryEscape("hello world"))

zxh

// Camelcase to underscore style.
func ToUnderScore(name string) string {
	l := len(name)
	ss := strings.Split(name, "")

	// we just care about the key of idx map,
	// the value of map is meaningless
	idx := make(map[int]int, 1)

	var rs []rune

zxh

func getIp() (net.IP, error) {
	interfaces, e := net.Interfaces()
	if e != nil {
		return nil, errors.New("get Interfaces error")
	}
	for _, i := range interfaces {
		// the flags value maybe 'pointtopoint', it also has a ip, filter it.
		if !strings.Contains(i.Flags.String(), "broadcast") {
			continue
		}

zxh

Scala pattern matching 太强大了，但是想匹配一个 list 的最后一个元素，有些蛋疼。 本来想尝试 case (List(_* ,last)) => ... 但是居然编译都报错，原来 _* 只能扔到最后去。 如果用

(1 to 9).toList match {
  case _ :: 9 :: Nil=> "no way"
}

zxh

词的分类

• 实词：名词、动词、形容词、状态词、区别词、数词、量词、代词
• 虚词：副词、介词、连词、助词、拟声词、叹词。

ICTPOS3.0词性标记集

n 名词

nr 人名

zxh

I answered it on stackoverflow.com:
http://stackoverflow.com/questions/2213340/what-is-daemon-thread-in-java/18428894#18428894

Java has a special kind of thread called daemon thread.

Very low priority.
Only executes when no other thread of the same program is running.
JVM ends the program finishing these threads, when daemon threads are the only threads running in a program.
What does daemon thread used for?