国际化的locale类详解

淡淡的烟草味﹌ 2022-06-04 06:16 218阅读 0赞

1. Locale 介绍  
Locale 表示地区。每一个Locale对象都代表了一个特定的地理、政治和文化地区。  
在操作 Date, Calendar等表示日期/时间的对象时，经常会用到；因为不同的区域，时间表示方式都不同。  
下面说说Locale对象的3种常用创建方式。  
（1）获取默认的Locale  
使用方法：

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1.  Locale locale = Locale.getDefault()

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（2） 直接使用Locale的静态对象Locale.java中提供了以下静态对象

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1.  public static final Locale CANADA  
2.    
3.  public static final Locale CANADA\_FRENCH  
4.    
5.  public static final Locale CHINA  
6.    
7.  public static final Locale CHINESE  
8.    
9.  public static final Locale ENGLISH  
10.   
11. public static final Locale FRANCE  
12.   
13. public static final Locale FRENCH  
14.   
15. public static final Locale GERMAN  
16.   
17. public static final Locale GERMANY  
18.   
19. public static final Locale ITALIAN  
20.   
21. public static final Locale ITALY  
22.   
23. public static final Locale JAPAN  
24.   
25. public static final Locale JAPANESE  
26.   
27. public static final Locale KOREA  
28.   
29. public static final Locale KOREAN  
30.   
31. public static final Locale PRC  
32.   
33. public static final Locale ROOT  
34.   
35. public static final Locale SIMPLIFIED\_CHINESE  
36.   
37. public static final Locale TAIWAN  
38.   
39. public static final Locale TRADITIONAL\_CHINESE  
40.   
41. public static final Locale UK  
42.   
43. public static final Locale US

使用方法：下面的Locale对象是对应 “中国(大陆)”的

（3）通过Locale的构造函数创建Locale对象  
Locale的构造函数共有3个。如下：

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1.  Locale(String language)  
2.    
3.  Locale(String language, String country)  
4.    
5.  Locale(String language, String country, String variant)

使用方法：

<table style="border-collapse:collapse; border-spacing:0px; max-width:100%; background-color:transparent"> 
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     <div style="margin:0px; padding:0px"> 
      <code style="font-family:Monaco,Menlo,Consolas,&quot;Courier New&quot;,monospace; font-size:14.4px; padding:2px 4px; color:rgb(199,37,78); white-space:nowrap; background-color:rgb(249,242,244)">Locale local =&nbsp;</code> 
      <code style="font-family:Monaco,Menlo,Consolas,&quot;Courier New&quot;,monospace; font-size:14px; padding:4px 5px 2px; color:rgb(255,255,255); white-space:nowrap; background:rgb(0,102,170); margin-right:5px; word-wrap:normal">new</code>&nbsp; 
      <code style="font-family:Monaco,Menlo,Consolas,&quot;Courier New&quot;,monospace; font-size:14.4px; padding:2px 4px; color:rgb(199,37,78); white-space:nowrap; background-color:rgb(249,242,244)">Locale(</code> 
      <code style="font-family:Monaco,Menlo,Consolas,&quot;Courier New&quot;,monospace; font-size:14.4px; padding:2px 4px; color:rgb(199,37,78); white-space:nowrap; background-color:rgb(249,242,244)">"zh"</code> 
      <code style="font-family:Monaco,Menlo,Consolas,&quot;Courier New&quot;,monospace; font-size:14.4px; padding:2px 4px; color:rgb(199,37,78); white-space:nowrap; background-color:rgb(249,242,244)">,</code> 
      <code style="font-family:Monaco,Menlo,Consolas,&quot;Courier New&quot;,monospace; font-size:14.4px; padding:2px 4px; color:rgb(199,37,78); white-space:nowrap; background-color:rgb(249,242,244)">"CN"</code> 
      <code style="font-family:Monaco,Menlo,Consolas,&quot;Courier New&quot;,monospace; font-size:14.4px; padding:2px 4px; color:rgb(199,37,78); white-space:nowrap; background-color:rgb(249,242,244)">);</code> 
     </div> 
    </div> </td> 
  </tr> 
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</table>

Locale类支持非常多的国家和地区。我们可以通过以下方法，查看Locale支持的全部区域：

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1.  Locale\[\] ls = Locale.getAvailableLocales();  
2.    
3.     
4.    
5.  for (Locale locale:ls) \{  
6.    
7.    System.out.println("locale :"\+locale);  
8.    
9.  \}

输入结果如下：

<table style="border-collapse:collapse; border-spacing:0px; max-width:100%; background-color:transparent"> 
 <tbody style=""> 
  <tr style=""> 
   <td style=""> 
    <div style="margin:0px; padding:0px"> 
     <br style=""> 
    </div> </td> 
   <td style=""> 
    <div style="margin:20px auto 0px; padding:0px 15px; width:1270px"> 
     <div style="margin:0px; padding:0px"> 
      <code style="font-family:Monaco,Menlo,Consolas,&quot;Courier New&quot;,monospace; font-size:14.4px; padding:2px 4px; color:rgb(199,37,78); white-space:nowrap; background-color:rgb(249,242,244)">All Locales: ja_JP, es_PE, en, ja_JP_JP, es_PA, sr_BA, mk, es_GT, ar_AE, no_NO, sq_AL, bg, ar_IQ, ar_YE, hu, pt_PT, el_CY, ar_QA, mk_MK, sv, de_CH, en_US, fi_FI, is, cs, en_MT, sl_SI, sk_SK, it, tr_TR, zh, th, ar_SA, no, en_GB, sr_CS, lt, ro, en_NZ, no_NO_NY, lt_LT, es_NI, nl, ga_IE, fr_BE, es_ES, ar_LB, ko, fr_CA, et_EE, ar_KW, sr_RS, es_US, es_MX, ar_SD, in_ID, ru, lv, es_UY, lv_LV, iw, pt_BR, ar_SY, hr, et, es_DO, fr_CH, hi_IN, es_VE, ar_BH, en_PH, ar_TN, fi, de_AT, es, nl_NL, es_EC, zh_TW, ar_JO, be, is_IS, es_CO, es_CR, es_CL, ar_EG, en_ZA, th_TH, el_GR, it_IT, ca, hu_HU, fr, en_IE, uk_UA, pl_PL, fr_LU, nl_BE, en_IN, ca_ES, ar_MA, es_BO, en_AU, sr, zh_SG, pt, uk, es_SV, ru_RU, ko_KR, vi, ar_DZ, vi_VN, sr_ME, sq, ar_LY, ar, zh_CN, be_BY, zh_HK, ja, iw_IL, bg_BG, in, mt_MT, es_PY, sl, fr_FR, cs_CZ, it_CH, ro_RO, es_PR, en_CA, de_DE, ga, de_LU, de, es_AR, sk, ms_MY, hr_HR, en_SG, da, mt, pl, ar_OM, tr, th_TH_TH, el, ms, sv_SE, da_DK, es_HN</code> 
     </div> 
    </div> </td> 
  </tr> 
 </tbody> 
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下面选择其中的两个进行说明，如何利用它们来创建Locale对象：  
例如，第一个输出是“ja\_JP”。  
其中，ja代表“语言”，这里指日语；“JP”代表国家，这里指日本。  
我们可以通过如下方法，创建“语言是日语，国家是日本的Locale对象”。

<table style="border-collapse:collapse; border-spacing:0px; max-width:100%; background-color:transparent"> 
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     <br style=""> 
    </div> </td> 
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    <div style="margin:20px auto 0px; padding:0px 15px; width:1270px"> 
     <div style="margin:0px; padding:0px"> 
      <code style="font-family:Monaco,Menlo,Consolas,&quot;Courier New&quot;,monospace; font-size:14.4px; padding:2px 4px; color:rgb(199,37,78); white-space:nowrap; background-color:rgb(249,242,244)">Locale locale =&nbsp;</code> 
      <code style="font-family:Monaco,Menlo,Consolas,&quot;Courier New&quot;,monospace; font-size:14px; padding:4px 5px 2px; color:rgb(255,255,255); white-space:nowrap; background:rgb(0,102,170); margin-right:5px; word-wrap:normal">new</code>&nbsp; 
      <code style="font-family:Monaco,Menlo,Consolas,&quot;Courier New&quot;,monospace; font-size:14.4px; padding:2px 4px; color:rgb(199,37,78); white-space:nowrap; background-color:rgb(249,242,244)">Locale(</code> 
      <code style="font-family:Monaco,Menlo,Consolas,&quot;Courier New&quot;,monospace; font-size:14.4px; padding:2px 4px; color:rgb(199,37,78); white-space:nowrap; background-color:rgb(249,242,244)">"ja"</code> 
      <code style="font-family:Monaco,Menlo,Consolas,&quot;Courier New&quot;,monospace; font-size:14.4px; padding:2px 4px; color:rgb(199,37,78); white-space:nowrap; background-color:rgb(249,242,244)">,</code> 
      <code style="font-family:Monaco,Menlo,Consolas,&quot;Courier New&quot;,monospace; font-size:14.4px; padding:2px 4px; color:rgb(199,37,78); white-space:nowrap; background-color:rgb(249,242,244)">"JP"</code> 
      <code style="font-family:Monaco,Menlo,Consolas,&quot;Courier New&quot;,monospace; font-size:14.4px; padding:2px 4px; color:rgb(199,37,78); white-space:nowrap; background-color:rgb(249,242,244)">);</code> 
     </div> 
    </div> </td> 
  </tr> 
 </tbody> 
</table>

例如，第三个输出是“en”。  
其中，en代表“语言”，这里指英语。  
我们可以通过如下方法，创建“语言是英文的Locale对象”。

<table style="border-collapse:collapse; border-spacing:0px; max-width:100%; background-color:transparent"> 
 <tbody style=""> 
  <tr style=""> 
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     <br style=""> 
    </div> </td> 
   <td style=""> 
    <div style="margin:20px auto 0px; padding:0px 15px; width:1270px"> 
     <div style="margin:0px; padding:0px"> 
      <code style="font-family:Monaco,Menlo,Consolas,&quot;Courier New&quot;,monospace; font-size:14.4px; padding:2px 4px; color:rgb(199,37,78); white-space:nowrap; background-color:rgb(249,242,244)">Locale locale =&nbsp;</code> 
      <code style="font-family:Monaco,Menlo,Consolas,&quot;Courier New&quot;,monospace; font-size:14px; padding:4px 5px 2px; color:rgb(255,255,255); white-space:nowrap; background:rgb(0,102,170); margin-right:5px; word-wrap:normal">new</code>&nbsp; 
      <code style="font-family:Monaco,Menlo,Consolas,&quot;Courier New&quot;,monospace; font-size:14.4px; padding:2px 4px; color:rgb(199,37,78); white-space:nowrap; background-color:rgb(249,242,244)">Locale(</code> 
      <code style="font-family:Monaco,Menlo,Consolas,&quot;Courier New&quot;,monospace; font-size:14.4px; padding:2px 4px; color:rgb(199,37,78); white-space:nowrap; background-color:rgb(249,242,244)">"en"</code> 
      <code style="font-family:Monaco,Menlo,Consolas,&quot;Courier New&quot;,monospace; font-size:14.4px; padding:2px 4px; color:rgb(199,37,78); white-space:nowrap; background-color:rgb(249,242,244)">);</code> 
     </div> 
    </div> </td> 
  </tr> 
 </tbody> 
</table>

Locale 函数列表

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1.  // Locale的构造函数  
2.    
3.  Locale(String language)  
4.    
5.  Locale(String language, String country)  
6.    
7.  Locale(String language, String country, String variant)

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      <div style="padding:1px 0px 0px; position:relative; overflow-y:hidden; overflow-x:auto; font-family:Consolas,&quot;Courier New&quot;,Courier,mono,serif; background-color:rgb(231,229,220); width:1227.59px; margin:18px 0px!important"> 
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         <span style="">[java]</span>&nbsp; 
         <a href="http://blog.csdn.net/u013310119/article/details/64127771#" title="view plain" style="background-color:inherit; color:rgb(160,160,160); margin:0px 10px 0px 0px; padding:1px; outline:0px; border:none; font-size:9px; display:inline-block; width:16px; height:16px; text-indent:-2000px" rel="nofollow">view plain</a> 
         <span style="margin:0px; padding:0px">&nbsp;<a href="http://blog.csdn.net/u013310119/article/details/64127771#" title="copy" style="background-color:inherit; color:rgb(160,160,160); margin:0px 10px 0px 0px; padding:1px; outline:0px; border:none; font-size:9px; display:inline-block; width:16px; height:16px; text-indent:-2000px" rel="nofollow">copy</a></span> 
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       <ol style="padding:0px; list-style-position:initial; border-top:none; border-right:1px solid rgb(231,229,220); border-bottom:none; border-left:none; background-color:rgb(255,255,255); color:rgb(92,92,92); margin:0px 0px 1px 45px!important"> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); color:inherit; line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit"><span style="margin:0px; padding:0px; border:none; background-color:inherit">Object&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;clone()&nbsp;&nbsp;</span></span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); background-color:rgb(248,248,248); line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit">&nbsp;&nbsp;</span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); color:inherit; line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit"><span style="margin:0px; padding:0px; font-weight:700; background-color:inherit; color:rgb(0,102,153); font-size:14px; word-wrap:normal; border:none">boolean</span><span style="margin:0px; padding:0px; border:none; background-color:inherit">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;equals(Object&nbsp;object)&nbsp;&nbsp;</span></span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); background-color:rgb(248,248,248); line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit">&nbsp;&nbsp;</span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); color:inherit; line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit"><span style="margin:0px; padding:0px; font-weight:700; background-color:inherit; color:rgb(0,102,153); font-size:14px; word-wrap:normal; border:none">static</span><span style="margin:0px; padding:0px; border:none; background-color:inherit">&nbsp;Locale[]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;getAvailableLocales()&nbsp;&nbsp;</span></span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); background-color:rgb(248,248,248); line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit">&nbsp;&nbsp;</span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); color:inherit; line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit">String&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;getCountry()&nbsp;&nbsp;</span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); background-color:rgb(248,248,248); line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit">&nbsp;&nbsp;</span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); color:inherit; line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit"><span style="margin:0px; padding:0px; font-weight:700; background-color:inherit; color:rgb(0,102,153); font-size:14px; word-wrap:normal; border:none">static</span><span style="margin:0px; padding:0px; border:none; background-color:inherit">&nbsp;Locale&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;getDefault()&nbsp;&nbsp;</span></span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); background-color:rgb(248,248,248); line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit">&nbsp;&nbsp;</span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); color:inherit; line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit">String&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;getDisplayCountry(Locale&nbsp;locale)&nbsp;&nbsp;</span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); background-color:rgb(248,248,248); line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit">&nbsp;&nbsp;</span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); color:inherit; line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit"><span style="margin:0px; padding:0px; font-weight:700; background-color:inherit; color:rgb(0,102,153); font-size:14px; word-wrap:normal; border:none">final</span><span style="margin:0px; padding:0px; border:none; background-color:inherit">&nbsp;String&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;getDisplayCountry()&nbsp;&nbsp;</span></span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); background-color:rgb(248,248,248); line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit">&nbsp;&nbsp;</span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); color:inherit; line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit"><span style="margin:0px; padding:0px; font-weight:700; background-color:inherit; color:rgb(0,102,153); font-size:14px; word-wrap:normal; border:none">final</span><span style="margin:0px; padding:0px; border:none; background-color:inherit">&nbsp;String&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;getDisplayLanguage()&nbsp;&nbsp;</span></span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); background-color:rgb(248,248,248); line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit">&nbsp;&nbsp;</span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); color:inherit; line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit">String&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;getDisplayLanguage(Locale&nbsp;locale)&nbsp;&nbsp;</span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); background-color:rgb(248,248,248); line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit">&nbsp;&nbsp;</span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); color:inherit; line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit">String&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;getDisplayName(Locale&nbsp;locale)&nbsp;&nbsp;</span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); background-color:rgb(248,248,248); line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit">&nbsp;&nbsp;</span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); color:inherit; line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit"><span style="margin:0px; padding:0px; font-weight:700; background-color:inherit; color:rgb(0,102,153); font-size:14px; word-wrap:normal; border:none">final</span><span style="margin:0px; padding:0px; border:none; background-color:inherit">&nbsp;String&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;getDisplayName()&nbsp;&nbsp;</span></span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); background-color:rgb(248,248,248); line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit">&nbsp;&nbsp;</span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); color:inherit; line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit"><span style="margin:0px; padding:0px; font-weight:700; background-color:inherit; color:rgb(0,102,153); font-size:14px; word-wrap:normal; border:none">final</span><span style="margin:0px; padding:0px; border:none; background-color:inherit">&nbsp;String&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;getDisplayVariant()&nbsp;&nbsp;</span></span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); background-color:rgb(248,248,248); line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit">&nbsp;&nbsp;</span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); color:inherit; line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit">String&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;getDisplayVariant(Locale&nbsp;locale)&nbsp;&nbsp;</span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); background-color:rgb(248,248,248); line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit">&nbsp;&nbsp;</span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); color:inherit; line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit">String&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;getISO3Country()&nbsp;&nbsp;</span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); background-color:rgb(248,248,248); line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit">&nbsp;&nbsp;</span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); color:inherit; line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit">String&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;getISO3Language()&nbsp;&nbsp;</span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); background-color:rgb(248,248,248); line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit">&nbsp;&nbsp;</span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); color:inherit; line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit"><span style="margin:0px; padding:0px; font-weight:700; background-color:inherit; color:rgb(0,102,153); font-size:14px; word-wrap:normal; border:none">static</span><span style="margin:0px; padding:0px; border:none; background-color:inherit">&nbsp;String[]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;getISOCountries()&nbsp;&nbsp;</span></span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); background-color:rgb(248,248,248); line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit">&nbsp;&nbsp;</span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); color:inherit; line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit"><span style="margin:0px; padding:0px; font-weight:700; background-color:inherit; color:rgb(0,102,153); font-size:14px; word-wrap:normal; border:none">static</span><span style="margin:0px; padding:0px; border:none; background-color:inherit">&nbsp;String[]&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;getISOLanguages()&nbsp;&nbsp;</span></span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); background-color:rgb(248,248,248); line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit">&nbsp;&nbsp;</span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); color:inherit; line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit">String&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;getLanguage()&nbsp;&nbsp;</span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); background-color:rgb(248,248,248); line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit">&nbsp;&nbsp;</span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); color:inherit; line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit">String&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;getVariant()&nbsp;&nbsp;</span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); background-color:rgb(248,248,248); line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit">&nbsp;&nbsp;</span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); color:inherit; line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit"><span style="margin:0px; padding:0px; font-weight:700; background-color:inherit; color:rgb(0,102,153); font-size:14px; word-wrap:normal; border:none">synchronized</span><span style="margin:0px; padding:0px; border:none; background-color:inherit">&nbsp;</span><span style="margin:0px; padding:0px; font-weight:700; background-color:inherit; color:rgb(0,102,153); font-size:14px; word-wrap:normal; border:none">int</span><span style="margin:0px; padding:0px; border:none; background-color:inherit">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;hashCode()&nbsp;&nbsp;</span></span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); background-color:rgb(248,248,248); line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit">&nbsp;&nbsp;</span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); color:inherit; line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit"><span style="margin:0px; padding:0px; font-weight:700; background-color:inherit; color:rgb(0,102,153); font-size:14px; word-wrap:normal; border:none">synchronized</span><span style="margin:0px; padding:0px; border:none; background-color:inherit">&nbsp;</span><span style="margin:0px; padding:0px; font-weight:700; background-color:inherit; color:rgb(0,102,153); font-size:14px; word-wrap:normal; border:none">static</span><span style="margin:0px; padding:0px; border:none; background-color:inherit">&nbsp;</span><span style="margin:0px; padding:0px; font-weight:700; background-color:inherit; color:rgb(0,102,153); font-size:14px; word-wrap:normal; border:none">void</span><span style="margin:0px; padding:0px; border:none; background-color:inherit">&nbsp;&nbsp;&nbsp;setDefault(Locale&nbsp;locale)&nbsp;&nbsp;</span></span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); background-color:rgb(248,248,248); line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit">&nbsp;&nbsp;</span></li> 
        <li style="margin-left:40px; list-style:decimal; border-top:none; border-right:none; border-bottom:none; border-left:3px solid rgb(108,226,108); color:inherit; line-height:18px; margin-top:0px!important; margin-right:0px!important; margin-bottom:0px!important; padding:0px 3px 0px 10px!important"> <span style="margin:0px; padding:0px; border:none; color:rgb(0,0,0); background-color:inherit"><span style="margin:0px; padding:0px; font-weight:700; background-color:inherit; color:rgb(0,102,153); font-size:14px; word-wrap:normal; border:none">final</span><span style="margin:0px; padding:0px; border:none; background-color:inherit">&nbsp;String&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;toString()&nbsp;&nbsp;</span></span></li> 
       </ol> 
      </div> 
      <br style=""> 
     </div> 
    </div> </td> 
  </tr> 
 </tbody> 
</table>

2. Locale示例  
下面通过示例演示在Date中使用Locale的。  
参考代码如下(LocaleTest.java)：

\[java\]  [view plain][]  [copy][view plain]

1.  import java.util.Locale;  
2.    
3.  import java.util.Date;  
4.    
5.  import java.util.Calendar;  
6.    
7.  import java.text.SimpleDateFormat;  
8.    
9.  import java.text.DateFormat;  
10.   
11.    
12.   
13. /\*\* 
14.  
15.  \* Locale 的测试程序 
16.  
17.  \*/  
18.   
19. public class LocaleTest \{  
20.   
21.    
22.   
23.   publicstatic void main(String\[\] args) \{  
24.   
25.     // 2种不同的Locale的创建方法  
26.   
27.     testDiffDateLocales();  
28.   
29.    
30.   
31.     // 显示所有的Locales  
32.   
33.     testAllLocales();  
34.   
35.   \}  
36.   
37.    
38.   
39.    
40.   
41.   /\*\* 
42.  
43.    \* 2种不同的Locale的创建方法 
44.  
45.    \*/  
46.   
47.   privatestatic void testDiffDateLocales() \{  
48.   
49.     // date为2013-09-19 14:22:30  
50.   
51.     Date date =new Date(113,8, 19,14, 22,30);  
52.   
53.    
54.   
55.     // 创建“简体中文”的Locale  
56.   
57.     Locale localeCN = Locale.SIMPLIFIED\_CHINESE;  
58.   
59.     // 创建“英文/美国”的Locale  
60.   
61.     Locale localeUS =new Locale("en","US");  
62.   
63.    
64.   
65.     // 获取“简体中文”对应的date字符串  
66.   
67.     String cn = DateFormat.getDateInstance(DateFormat.MEDIUM, localeCN).format(date);  
68.   
69.     // 获取“英文/美国”对应的date字符串  
70.   
71.     String us = DateFormat.getDateInstance(DateFormat.MEDIUM, localeUS).format(date);  
72.   
73.    
74.   
75.     System.out.printf("cn=%s\\nus=%s\\n", cn, us);  
76.   
77.   \}  
78.   
79.    
80.   
81.   /\*\* 
82.  
83.    \* 显示所有的Locales 
84.  
85.    \*/  
86.   
87.   privatestatic void testAllLocales() \{  
88.   
89.     Locale\[\] ls = Locale.getAvailableLocales();  
90.   
91.    
92.   
93.     System.out.print("All Locales: ");  
94.   
95.     for(Locale locale:ls) \{  
96.   
97.       System.out.printf(locale+", ");  
98.   
99.     \}  
100.   
101.     System.out.println();  
102.   
103.   \}  
104.   
105. \}

3.使用ResouceBundle读取国际化资源文件

ResourceBundle资源包包含特定语言环境的对象。使用其可以加载并读取语言环境资源。  
1.轻松的本地化或者翻译成不同的语言  
2.一次处理多个语言环境  
3.以后可以轻松的进行修改，一遍支持更多的语言环境。  
   
当程序需要特定于语言环境的对象时，它使用getBundle()方法加载ResourceBundle类

其中，res.MessageBundle代表的是我们在src下建立了一个res文件夹，而res文件夹下有一个名为MessageBundle.properteis的资源文件。我们允许在此建立多个国际化资源文件：

其中MessageBundle就是要在构造ResourceBundle时使用的字符串，这个名字合法即可，不需要特定约束。后边的名字一定要遵循规则，

然后我们使用rb.getString(key);就可以获取资源文件中的Key对应的value.  
使用Struts1.x实现国际化自动切换

查看Struts源码就可以发现，语言环境信息就存放在session中，通过this.setLocale(request, locale);  
所以要实现国际化就要在页面上点击超链接经过Action的时候改变会话中Locale（语言环境）的值。在Action中：

\[java\]  [view plain][]  [copy][view plain]

1.  //接受客户端传过来的语言请求信息  
2.    
3.  String language = request.getParameter(“myLanguage”);  
4.    
5.      
6.    
7.  //定义语言地区信息   
8.    
9.  Locale currentLocale =null;   
10.   
11.     
12.   
13. //根据不同的请求创建不同的语言环境信息  
14.   
15. if (“zh”.equals(language)) \{   
16.   
17.   currentLocale =new Locale(“zh”, “CN”);  
18.   
19. \} elseif (“en”.equals(language)) \{  
20.   
21.   currentLocale =new Locale(“en”, “US”);  
22.   
23. \}   
24.   
25.     
26.   
27. //……   
28.   
29. //将session中的信息更改掉   
30.   
31. this.setLocale(request, currentLocale);  
32.   
33.     
34.   
35. //当然，在页面显示资源文件信息的时候采用如下这种方式：  
36.   
37.     
38.   
39. //<bean:message key=”key” />  
40.

[view plain]: http://blog.csdn.net/u013310119/article/details/64127771#