charset | 易学教程

Converting UTF-8 to ISO-8859-1 in Java - how to keep it as single byte

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可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由翻译强力驱动问题: 回答1: If you're dealing with character encodings other than UTF-16, you shouldn't be using java.lang.String or the char primitive -- you should only be using byte[] arrays or ByteBuffer objects. Then, you can use java.nio.charset.Charset to convert between encodings: Charset utf8charset = Charset . forName ( "UTF-8" ); Charset iso88591charset = Charset . forName ( "ISO-8859-1" ); ByteBuffer inputBuffer = ByteBuffer . wrap ( new byte []{( byte ) 0xC3 , ( byte ) 0xA2 }); // decode UTF-8 CharBuffer data = utf8charset . decode (

html常见标签及用法整理

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<!DOCTYPE html>  <html lang="en"> <head>  <meta charset="utf-8">  <meta name="keywords" content="关键词seo"> <meta name="description" content="描述词">     <link rel="icon" href="http://www.jd.com/favicon.ico"> <link rel="stylesheet" href=

how to change the encoding format of text file from Unicode to UTF-8

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可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由翻译强力驱动问题: Dim txtFile , fileObj , streamObj , s Set txtFile = CreateObject ( fileName ) Set streamObj = CreatreObject ( "adodb.Stream" ) streamObj . Charset = "UTF-8" streamObj . open Set fileObj = txtFile . OpenTextFile ( "filePath" ) Do Until fileObj . AtEndOfStream s = fileObj . ReadLine txtObj . WriteText s Loop txtObj . SaveToFile "D:\A4\Message_tool\surya.msg" , 2 fileObj . Close After the execution this code the encoding format of surya.msg is "ANSCII" but I want it to be "UTF-8" 回答1: Const adTypeText = 2 Const adSaveCreateOverWrite =

Content type 'text/plain;charset=UTF-8' not supported error in spring boot inside RestController class

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可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由翻译强力驱动问题: I got the following @RestController inside a spring boot application : @Data @RestController public class Hello { @Autowired private ResturantExpensesRepo repo ; @RequestMapping ( value = "/expenses/restaurants" , method = RequestMethod . POST , consumes = MediaType . APPLICATION_JSON_VALUE , headers = MediaType . APPLICATION_JSON_VALUE ) @ResponseBody public void hello ( @RequestBody ResturantExpenseDto dto ) { Logger logger = LoggerFactory . getLogger ( "a" ); logger . info ( "got a request" ); ResturantExpenseEntity

itext font UnsupportedCharsetException

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可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am trying to create pdf documents using iText (version 5.4.0) in a java web application and I have come across an issue with fonts. The web application is multi-lingual, and so users may save information into the system in various languages (eg. english, french, lithuanian, chinese, japanese, arabic, etc.). When I tried to configure the pdf to output some sample japanese text it didn't show up, so I started following the examples in the official "iText in Action" book. The problem I have encountered is that when I try and configure a font

数据库复习秘籍

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练习前的准备，先创建一个test库，在test库中建立数据： create table goods ( goods_id mediumint( 8 ) unsigned primary key auto_increment, goods_name varchar ( 120 ) not null default ‘‘ , cat_id smallint ( 5 ) unsigned not null default ‘ 0 ‘ , brand_id smallint ( 5 ) unsigned not null default ‘ 0 ‘ , goods_sn char ( 15 ) not null default ‘‘ , goods_number smallint ( 5 ) unsigned not null default ‘ 0 ‘ , shop_price decimal ( 10 , 2 ) unsigned not null default ‘ 0.00 ‘ , market_price decimal ( 10 , 2 ) unsigned not null default ‘ 0.00 ‘ , click_count int ( 10 ) unsigned not null default ‘ 0 ‘ ) engine = myisam default

jsp中include的两种用法

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1.两种用法第一种：include指令：通过file属性来指定被包含的页面，当JSP 转换成Servlet时引入指定文件，一般不需要写头 <%@ pagecontentType="text/html;charset=GB2312" language="java"errorPage=""%> <%@ include file="hea d.jsp" %> <%@ include file="body.jsp"%> <%@ include file="tail.jsp"%> 第二种：第二种：<jsp:include>动作元素：通过page属性来指定被包含的页面，当JSP页面被请求时引入指定文件，需要写头 <%@ page contentType="text/html; charset=GB2312"language="java" errorPage=""%> <jsp:include page="head.jsp"/> <jsp:include page="body.jsp"/> <jsp:include page="tail.jsp"/> 注意：<jsp:include>动作通常是包含那些经常改动的文件，因为被包含的文件改动不会影响到包含文件，因此不需要对包含文件进行重新编译 2.用法区别（1）引入内容的不同；执行时间上区别 include指令，（静态包含）

简单的权限管理需要的表

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1：部门表 CREATE TABLE `sys_dept` ( ) ENGINE=InnoDB AUTO_INCREMENT=12 DEFAULT CHARSET=utf8; 2：人员用户表 CREATE TABLE `sys_user` ( ) ENGINE=InnoDB AUTO_INCREMENT=19 DEFAULT CHARSET=utf8; 3：角色表 CREATE TABLE `sys_role` ( ) ENGINE=InnoDB AUTO_INCREMENT=12 DEFAULT CHARSET=utf8; 4：角色用户表 CREATE TABLE `sys_role_user` ( ) ENGINE=InnoDB AUTO_INCREMENT=30 DEFAULT CHARSET=utf8; 5:权限点表 CREATE TABLE `sys_menu` ( ) ENGINE=InnoDB AUTO_INCREMENT=22 DEFAULT CHARSET=utf8; 6:角色菜单表 CREATE TABLE `sys_role_menu` ( ) ENGINE=InnoDB AUTO_INCREMENT=71 DEFAULT CHARSET=utf8 COMMENT='角色菜单表'; 7:权限模块表 CREATE TABLE `sys_menu_module`

从一个服务器向另一个服务器上传文件所遇到的问题（两个服务器都是云服务器）

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首先两个服务器都要安装ftp服务（安装教程可以自行百度）。安装配置文件有时很重要如果不认真连不上后面的步骤都不行。要理清ftp的两种模式一种是主动模式还有就是被动模式。所谓主动模式 :就是指客户端连接服务端的时候，告诉服务端，我们之间要进行通讯，数据交换。我申请开辟一个端口，专门用于我们之间的通信，也即C(client)端主动向S(Server)端发起的请求。被动模式就是指，一开始服务一起来，S端变开启一个端口告诉C端，我们之间的通讯就在这个端口下。也就C端被动的接受服务端。主动模式：服务器向客户端敲门，然后客户端开门被动模式：客户端向服务器敲门，然后服务器开门 * 上传文件（主动模式）--默认的模式 * @param ip * @param port * @param userName * @param password * @param sourceStream * @param ftpDir * @param ftpFileName * @param charset * @throws FrontEndException */ public final static void upload(String ip, int port, String userName, String password, InputStream sourceStream, String

C#磁盘或U盘加密（创建加密区）

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需要下载的DLL和驱动介于公司项目为C#项目进行的加密开发，用前几张文章所学到的TrueCrypt项目开启4个重要的入口点：创建加密卷加载加密卷卸载加密卷修改密码加载驱动安装驱动 using Microsoft.Win32; using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Runtime.InteropServices; using System.ServiceProcess; using System.Text; namespace ICT.NetHandleLibrary { public class TrueCryptHelper { Logger<TrueCryptHelper> log = new Logger<TrueCryptHelper>(); [DllImport( "TrueCryptFormat.dll" , EntryPoint = "FormatVolumeC" , CharSet = CharSet.Ansi, CallingConvention = CallingConvention.Cdecl)] private extern static int FormatVolumeC ( string

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