class Sql{
private String fromtime1 = "fromtime1****";    //声明出差开始时间
private String totime1 = "totime1*****";    //声明出差结束时间
private String place1 = "place1*****";    //声明出差地点
private String people1 = "people1*****";    //声明同行人员
private String cost = "cost*****";    //声明花费

public Sql(String fromtime1,String totime1,String place1,String people1,String cost){    //对用户名和密码定义构造方法并赋值
this.fromtime1 = fromtime1 ; 
this.totime1 = totime1 ; 
this.place1 = place1 ; 
this.people1 = people1 ; 
this.cost = cost ;
this.setFromtime1(fromtime1);
this.setTotime1(totime1);
this.setPlace1(place1);
this.setPeople1(people1);
this.setCost(cost);
}
public void setFromtime1(String t1){
fromtime1 = t1;
}
public void setTotime1(String t2){
totime1 = t2;
}
public void setPlace1(String p1){
place1 = p1;
}
public void setPeople1(String pe1){
people1 = pe1;
}
public void setCost(String c1){
cost = c1;
}

public String getFromtime1(){
return fromtime1;
}
public String getTotime1(){
return totime1;
}
public String getPlace1(){
return place1;
}
public String getPeople1(){
return people1;
}
public String getCost(){
return cost;
}

}

public class test2 {


public static void main(String[] args) {
// TODO 自动生成的方法存根

Sql sql =new Sql("出差开始时间", "出差结束时间", "出差地点", "同行人员", "花费");
System.out.println("出差信息："+sql.getFromtime1()+",  "+sql.getTotime1()+",  "+sql.getPlace1()+",  "+sql.getPeople1()+",  "+sql.getCost());

}



}

场景

如果一个状态量在多个地方用到，或者一个业务用到多个状态量。

可以使用类似枚举类代替直接使用明文表示。

这样如果需要修改状态量的值就不用再每个地方都要修改。

Vue中要实现同样的效果，比如自定义一些错误码。

即401代表什么，403代表什么，默认的错误码返回什么。

注：

博客：
https://blog.csdn.net/badao_liumang_qizhi 

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实现

首先在项目目录下新建utils目录，在此目录下新建errorCode.js

export default {
  '401': '认证失败，无法访问系统资源',
  '403': '当前操作没有权限',
  '404': '访问资源不存在',
  'default': '系统未知错误，请反馈给管理员'
}

按照以上格式自定义一些错误码以及默认错误码。

然后在需要使用的地方，这里假设是登录时发送请求的js中

import errorCode from '@/utils/errorCode'

引入该组件

则可以用如下的形式使用错误码

    // 未设置状态码则默认成功状态
    const code = res.data.code || 200;
    // 获取错误信息
    const message = errorCode[code] || res.data.msg || errorCode['default']

code是后台返回的状态码，然后去erroeCode中通过errorCode[code]的形式去匹配

或者直接指定

errorCode['default']

获取默认的错误码即'系统未知错误，请反馈给管理员'

1.WebResource
  获取一个字符串，该字符串包含由 WebResourceAttribute 类所引用的资源的名称。

[assembly: WebResource( "Aerolite.Resources.Js.SearchTextBox.js", "application/x-javascript" )]
[assembly: WebResource( "Aerolite.Resources.Js.MenuCommon.js", "application/x-javascript" )]

2.TagPrefix
  定义在网页中用于标识自定义控件的标记前缀。
[assembly: TagPrefix( "Aerolite.Web.WebControls", "arl" )]


3.ToolboxData
 指定当从MS等工具的工具箱拖动自定义控件时为它生成的默认标记
  [ToolboxData( "<{0}:SearchTextBox runat=server />" )]


4.ParseChildren
  定义可在开发asp.net服务器控件时使用的元数据属性
 [ParseChildren( true )] 

5.Bindable
  指示成员是否用于绑定
6.Themeable
  获取一个值，该值指示当前控件或控件的成员是否受 Web 应用程序中定义的主题和控件外观影响。
7.Browsable
  获取一个值，该值指示此对象是否可浏览。是否显示在“属性”窗口中。
 [Bindable( true ), Themeable( false ), Browsable( true )] 

8.Category
  指定当属性或者事件显示在一个设置为"按分类顺序"模式的System.Windows.Forms.PropertyGrid控件中时,用于给属性或事件分组的类别的名称。
9.DefaultValue
  属性的默认值
10.Localizable
  属性是否应本地化.
   [Category( "Data" )]  
    [DefaultValue( "App_Code" )]
    [Localizable( true )]

上面是一些属性的设置，下面附封装google suggest控件的代码。

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Text;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.IO;

//引用两个js文件,该js文件是生成该控件的
[assembly: WebResource( "Aerolite.Resources.Js.SearchTextBox.js", "application/x-javascript" )]
[assembly: WebResource( "Aerolite.Resources.Js.MenuCommon.js", "application/x-javascript" )]

//定义在网页中的标记前缀为arl
[assembly: TagPrefix( "Aerolite.Web.WebControls", "arl" )]

namespace Aerolite.Web.WebControls
{
  /**//// <summary>
  /// 一个可以异步传输已进行右模糊搜索的文本输入框
  /// </summary>  

  // 指定当从工具箱拖动时为它生成的默认标记 
  [ToolboxData( "<{0}:SearchTextBox runat=server />" )]

  //定义开发服务器控件时使用的元数据属性
  [ParseChildren( true )]

  //定义一个属性
  [PersistChildren( false )]
  public class SearchTextBox : System.Web.UI.WebControls.TextBox, System.Web.UI.ICallbackEventHandler
  {
    /**//// <summary>
    /// 获取或设置提供搜索结果的类的全名
    /// </summary>
    [Bindable( true ), Themeable( false ), Browsable( true )]
    [Category( "Data" )]
    [DefaultValue( "" )]
    [Localizable( true )]
    public string DataSourceFullName
    {
      get
      {
        return (ViewState["DataSourceFullName"] == null) ? "" : (string) ViewState["DataSourceFullName"];
      }
      set
      {
        ViewState["DataSourceFullName"] = value;
      }
    }

    /**//// <summary>
    /// 获取或设置提供搜索结果的类所在程序集的名称
    /// </summary>                              
    [Bindable( true ), Themeable( false ), Browsable( true )]   
    [Category( "Data" )]  
    [DefaultValue( "App_Code" )]
    [Localizable( true )]
    public string DataSourceAssembly
    {
      get
      {
        return (ViewState["DataSourceAssembly"] == null) ? "App_Code" : (string) ViewState["DataSourceAssembly"];
    
      }
      set
      {
        ViewState["DataSourceAssembly"] = value;
      }
    }

    /**//// <summary>
    /// 获取或设置提供搜索结果的方法的名称。
    /// </summary>
    [Bindable( true ), Themeable( false ), Browsable( true )]
    [Category( "Data" )]
    [DefaultValue( "" )]
    [Localizable( true )]
    public string GetDataMethod
    {
      get
      {
        return (ViewState["GetDataMethod"] == null) ? "" : (string) ViewState["GetDataMethod"];
      }
      set
      {
        ViewState["GetDataMethod"] = value;
      }
    }

    private object _DataSource;
    [Bindable( true ), Themeable( false ), Browsable( false )]
    public object DataSource
    {
      get
      {
        if ( _DataSource == null )
        {
          OnDataSourceCreating();
        }
        return _DataSource;
      }
      set
      {
        _DataSource = value;

        Properties.Resources;
      }

     
    }

    public delegate void DataSoucreEventHandler( SearchTextBox sender );

    [Bindable( false ), Browsable( false )]
    public event DataSoucreEventHandler DataSourceCreating;

    protected virtual void OnDataSourceCreating()
    {
      if ( DataSourceCreating != null )
      {
        DataSourceCreating( this );
      }
      else
      {
        _DataSource = System.Type.GetType( DataSourceFullName + "," + DataSourceAssembly ).InvokeMember( "", System.Reflection.BindingFlags.CreateInstance, null, null, null );
      }
    }

    /**//// <summary>
    /// 定义用于获取搜索上下文菜单项的方法
    /// </summary>
    /// <param name="searchKey">搜索框中输入的部分关键字</param>
    /// <returns>构成上下文菜单的项</returns>
    public delegate string[] GetSearchResultMethod( string searchKey );

    private GetSearchResultMethod _getResult;
    /**//// <summary>
    /// 设置用于获取搜索上下文菜单项的方法
    /// </summary>
    [Bindable( false ), Themeable( false ), Browsable( false )]
    public GetSearchResultMethod GetResultMethod
    {
      set
      {
        if ( value == null )
          throw new ArgumentNullException( "value" );
        _getResult = value;
      }
    }

    private string[] _GetResult( string searchKey )
    {
      if ( _getResult == null )
        return GetResult( searchKey );
      else
        return _getResult( searchKey );
    }


    /**//// <summary>
    /// 获取搜索上下文菜单项
    /// </summary>
    /// <param name="searchKey">搜索框中输入的部分关键字</param>
    /// <returns>构成上下文菜单的项</returns>
    protected virtual string[] GetResult( string searchKey )
    {
      return FormatResult( DataSource.GetType().InvokeMember( GetDataMethod, System.Reflection.BindingFlags.InvokeMethod, null, DataSource, new object[] { searchKey } ) ).Split( ',' );
    }

    protected override void OnPreRender( EventArgs e )
    {
      base.OnPreRender( e );
      
      Page.ClientScript.RegisterClientScriptResource( typeof( SearchTextBox ), "Aerolite.Resources.Js.MenuCommon.js" );
      Page.ClientScript.RegisterClientScriptResource( typeof( SearchTextBox ), "Aerolite.Resources.Js.SearchTextBox.js" );

    }

    protected override void Render( HtmlTextWriter writer )
    {
      base.Render( writer );
      writer.Write( "<script language=/"javascript/">/n" );
      writer.Write( "  var " + this.ClientID + "Menu=new searchTextBox();/n" );
      writer.Write( "  " + this.ClientID + "Menu.parentObj=document.getElementById(/"" + this.ClientID + "/");/n" );      
      writer.Write( "  " + this.ClientID + "Menu.bindingEvent();/n" );
      writer.Write( "  " + this.ClientID + "Menu.callBack=function(){/n" + Page.ClientScript.GetCallbackEventReference( this, "this.parentObj.value", "this.getCallBackResult", null ) + ";/n};/n" );                
      writer.Write( @"</script>" );
    }

    protected virtual string FormatResult( object result )
    {
      string temp = "";
      if ( result is string )
      {
        return result.ToString();
      }
      else if ( result is System.Collections.IEnumerable )
      {
        foreach ( object i in (System.Collections.IEnumerable) result )
        {
          temp += "," + i.ToString();
        }
        if ( temp != "" ) temp = temp.Substring( 1 );
      }
      else if ( result is System.Data.DataTable )
      {
        foreach ( System.Data.DataRow i in ((System.Data.DataTable) result).Rows )
        {
          temp += "," + i[0].ToString();
        }
        if ( temp != "" ) temp = temp.Substring( 1 );
      }
      return temp;
    }

    //异步回调
    ICallbackEventHandler 成员#region ICallbackEventHandler 成员

    string ICallbackEventHandler.GetCallbackResult()
    {
      return string.Join( ",", _searchResult );
    }

    private string[] _searchResult;
    void ICallbackEventHandler.RaiseCallbackEvent( string eventArgument )
    {
      _searchResult = _GetResult( eventArgument );
    }

    #endregion
  }
}

 
来自　http://www.cnblogs.com/ustbwuyi/archive/2006/08/14/476671.html

* @link http://www.smarty.net/
* @copyright 2008 New Digital Group, Inc.
* @author Monte Ohrt <monte at ohrt dot com>
* @author Uwe Tews
* @author Rodney Rehm
* @package Smarty
* @version 3.1.19
*/
/**
* define shorthand directory separator constant
*/
if (!defined('DS')) {
define('DS', DIRECTORY_SEPARATOR);
}
/**
* set SMARTY_DIR to absolute path to Smarty library files.
* Sets SMARTY_DIR only if user application has not already defined it.
*/
if (!defined('SMARTY_DIR')) {
define('SMARTY_DIR', dirname(__FILE__) . DS);
}
/**
* set SMARTY_SYSPLUGINS_DIR to absolute path to Smarty internal plugins.
* Sets SMARTY_SYSPLUGINS_DIR only if user application has not already defined it.
*/
if (!defined('SMARTY_SYSPLUGINS_DIR')) {
define('SMARTY_SYSPLUGINS_DIR', SMARTY_DIR . 'sysplugins' . DS);
}
if (!defined('SMARTY_PLUGINS_DIR')) {
define('SMARTY_PLUGINS_DIR', SMARTY_DIR . 'plugins' . DS);
}
if (!defined('SMARTY_MBSTRING')) {
define('SMARTY_MBSTRING', function_exists('mb_split'));
}
if (!defined('SMARTY_RESOURCE_CHAR_SET')) {
// UTF-8 can only be done properly when mbstring is available!
/**
* @deprecated in favor of Smarty::$_CHARSET
*/
define('SMARTY_RESOURCE_CHAR_SET', SMARTY_MBSTRING ? 'UTF-8' : 'ISO-8859-1');
}
if (!defined('SMARTY_RESOURCE_DATE_FORMAT')) {
/**
* @deprecated in favor of Smarty::$_DATE_FORMAT
*/
define('SMARTY_RESOURCE_DATE_FORMAT', '%b %e, %Y');
}
/**
* register the class autoloader
*/
if (!defined('SMARTY_SPL_AUTOLOAD')) {
define('SMARTY_SPL_AUTOLOAD', 0);
}
if (SMARTY_SPL_AUTOLOAD && set_include_path(get_include_path() . PATH_SEPARATOR . SMARTY_SYSPLUGINS_DIR) !== false) {
$registeredAutoLoadFunctions = spl_autoload_functions();
if (!isset($registeredAutoLoadFunctions['spl_autoload'])) {
spl_autoload_register();
}
} else {
spl_autoload_register('smartyAutoload');
}
/**
* Load always needed external class files
*/
include_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_data.php';
include_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_templatebase.php';
include_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_template.php';
include_once SMARTY_SYSPLUGINS_DIR . 'smarty_resource.php';
include_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_resource_file.php';
include_once SMARTY_SYSPLUGINS_DIR . 'smarty_cacheresource.php';
include_once SMARTY_SYSPLUGINS_DIR . 'smarty_internal_cacheresource_file.php';
/**
* This is the main Smarty class
*
* @package Smarty
*/
class Smarty extends Smarty_Internal_TemplateBase
{
/**#@+
* constant definitions
*/
/**
* smarty version
*/
const SMARTY_VERSION = 'Smarty-3.1.19';
/**
* define variable scopes
*/
const SCOPE_LOCAL = 0;
const SCOPE_PARENT = 1;
const SCOPE_ROOT = 2;
const SCOPE_GLOBAL = 3;
/**
* define caching modes
*/
const CACHING_OFF = 0;
const CACHING_LIFETIME_CURRENT = 1;
const CACHING_LIFETIME_SAVED = 2;
/**
* define constant for clearing cache files be saved expiration datees
*/
const CLEAR_EXPIRED = - 1;
/**
* define compile check modes
*/
const COMPILECHECK_OFF = 0;
const COMPILECHECK_ON = 1;
const COMPILECHECK_CACHEMISS = 2;
/**
* modes for handling of "<?php ... ?>" tags in templates.
*/
const PHP_PASSTHRU = 0; //-> print tags as plain text
const PHP_QUOTE = 1; //-> escape tags as entities
const PHP_REMOVE = 2; //-> escape tags as entities
const PHP_ALLOW = 3; //-> escape tags as entities
/**
* filter types
*/
const FILTER_POST = 'post';
const FILTER_PRE = 'pre';
const FILTER_OUTPUT = 'output';
const FILTER_VARIABLE = 'variable';
/**
* plugin types
*/
const PLUGIN_FUNCTION = 'function';
const PLUGIN_BLOCK = 'block';
const PLUGIN_COMPILER = 'compiler';
const PLUGIN_MODIFIER = 'modifier';
const PLUGIN_MODIFIERCOMPILER = 'modifiercompiler';
/**#@-*/
/**
* assigned global tpl vars
*/
public static $global_tpl_vars = array();
/**
* error handler returned by set_error_hanlder() in Smarty::muteExpectedErrors()
*/
public static $_previous_error_handler = null;
/**
* contains directories outside of SMARTY_DIR that are to be muted by muteExpectedErrors()
*/
public static $_muted_directories = array();
/**
* Flag denoting if Multibyte String functions are available
*/
public static $_MBSTRING = SMARTY_MBSTRING;
/**
* The character set to adhere to (e.g. "UTF-8")
*/
public static $_CHARSET = SMARTY_RESOURCE_CHAR_SET;
/**
* The date format to be used internally
* (accepts date() and strftime())
*/
public static $_DATE_FORMAT = SMARTY_RESOURCE_DATE_FORMAT;
/**
* Flag denoting if PCRE should run in UTF-8 mode
*/
public static $_UTF8_MODIFIER = 'u';
/**
* Flag denoting if operating system is windows
*/
public static $_IS_WINDOWS = false;
/**#@+
* variables
*/
/**
* auto literal on delimiters with whitspace
*
* @var boolean
*/
public $auto_literal = true;
/**
* display error on not assigned variables
*
* @var boolean
*/
public $error_unassigned = false;
/**
* look up relative filepaths in include_path
*
* @var boolean
*/
public $use_include_path = false;
/**
* template directory
*
* @var array
*/
private $template_dir = array();
/**
* joined template directory string used in cache keys
*
* @var string
*/
public $joined_template_dir = null;
/**
* joined config directory string used in cache keys
*
* @var string
*/
public $joined_config_dir = null;
/**
* default template handler
*
* @var callable
*/
public $default_template_handler_func = null;
/**
* default config handler
*
* @var callable
*/
public $default_config_handler_func = null;
/**
* default plugin handler
*
* @var callable
*/
public $default_plugin_handler_func = null;
/**
* compile directory
*
* @var string
*/
private $compile_dir = null;
/**
* plugins directory
*
* @var array
*/
private $plugins_dir = array();
/**
* cache directory
*
* @var string
*/
private $cache_dir = null;
/**
* config directory
*
* @var array
*/
private $config_dir = array();
/**
* force template compiling?
*
* @var boolean
*/
public $force_compile = false;
/**
* check template for modifications?
*
* @var boolean
*/
public $compile_check = true;
/**
* use sub dirs for compiled/cached files?
*
* @var boolean
*/
public $use_sub_dirs = false;
/**
* allow ambiguous resources (that are made unique by the resource handler)
*
* @var boolean
*/
public $allow_ambiguous_resources = false;
/**
* caching enabled
*
* @var boolean
*/
public $caching = false;
/**
* merge compiled includes
*
* @var boolean
*/
public $merge_compiled_includes = false;
/**
* template inheritance merge compiled includes
*
* @var boolean
*/
public $inheritance_merge_compiled_includes = true;
/**
* cache lifetime in seconds
*
* @var integer
*/
public $cache_lifetime = 3600;
/**
* force cache file creation
*
* @var boolean
*/
public $force_cache = false;
/**
* Set this if you want different sets of cache files for the same
* templates.
*
* @var string
*/
public $cache_id = null;
/**
* Set this if you want different sets of compiled files for the same
* templates.
*
* @var string
*/
public $compile_id = null;
/**
* template left-delimiter
*
* @var string
*/
public $left_delimiter = "{";
/**
* template right-delimiter
*
* @var string
*/
public $right_delimiter = "}";
/**#@+
* security
*/
/**
* class name
* This should be instance of Smarty_Security.
*
* @var string
* @see Smarty_Security
*/
public $security_class = 'Smarty_Security';
/**
* implementation of security class
*
* @var Smarty_Security
*/
public $security_policy = null;
/**
* controls handling of PHP-blocks
*
* @var integer
*/
public $php_handling = self::PHP_PASSTHRU;
/**
* controls if the php template file resource is allowed
*
* @var bool
*/
public $allow_php_templates = false;
/**
* Should compiled-templates be prevented from being called directly?
* {@internal
* Currently used by Smarty_Internal_Template only.
* }}
*
* @var boolean
*/
public $direct_access_security = true;
/**#@-*/
/**
* debug mode
* Setting this to true enables the debug-console.
*
* @var boolean
*/
public $debugging = false;
/**
* This determines if debugging is enable-able from the browser.
* <ul>
* <li>NONE => no debugging control allowed</li>
* <li>URL => enable debugging when SMARTY_DEBUG is found in the URL.</li>
* </ul>
*
* @var string
*/
public $debugging_ctrl = 'NONE';
/**
* Name of debugging URL-param.
* Only used when $debugging_ctrl is set to 'URL'.
* The name of the URL-parameter that activates debugging.
*
* @var type
*/
public $smarty_debug_id = 'SMARTY_DEBUG';
/**
* Path of debug template.
*
* @var string
*/
public $debug_tpl = null;
/**
* When set, smarty uses this value as error_reporting-level.
*
* @var int
*/
public $error_reporting = null;
/**
* Internal flag for getTags()
*
* @var boolean
*/
public $get_used_tags = false;
/**#@+
* config var settings
*/
/**
* Controls whether variables with the same name overwrite each other.
*
* @var boolean
*/
public $config_overwrite = true;
/**
* Controls whether config values of on/true/yes and off/false/no get converted to boolean.
*
* @var boolean
*/
public $config_booleanize = true;
/**
* Controls whether hidden config sections/vars are read from the file.
*
* @var boolean
*/
public $config_read_hidden = false;
/**#@-*/
/**#@+
* resource locking
转载于:https://www.cnblogs.com/2881064178dinfeng/p/6156154.html