Java国际化消息资源类

 1.消息资源类，内部的ResourceBundle对应于一个消息资源文件

import java.text.*;import java.util.*;public class MessageResource { private ResourceBundle rb; //资源绑定 private ClientAppLogger logger = ClientAppLogger.getInstance(); /** * 构造器 * @param props Properties 资源绑定 */ public MessageResource(ResourceBundle rb) { this.rb = rb; } /** * 得到消息字符 * @param key String 键 * @return String */ public String getString(String key) { try { return rb.getString(key); } catch (MissingResourceException ex) { logger.error("MissingMessageResource:key=" + key); return "undefined"; } } /** * 得到消息资源 * @param key String 键 * @param args Object[] 可变消息 * @return String */ public String getString(String key, Object[] args) { try { String temp = rb.getString(key); MessageFormat mFormat = new MessageFormat(temp); return mFormat.format(temp, args); } catch (MissingResourceException ex) { logger.error("MissingMessageResource:key=" + key); return "undefined"; } }}

 

2.消息资源工厂

import java.util.*;public class MessageResourceFactory { private static MessageResourceFactory factory = new MessageResourceFactory(); private Map msgResourceMap = null; //存放消息资源 private MessageResourceFactory() { msgResourceMap = new HashMap(); } public static MessageResourceFactory getInstance() { return factory; } /** * 创建消息资源 * @param name String 消息资源文件名 * @param locale Locale * @return MessageResource */ public MessageResource createMessageResource(String fileResName, Locale locale) { Object msgResObj = msgResourceMap.get(name); if (msgResObj == null) { ResourceBundle rb = ResourceBundle.getBundle(fileResName, loc); MessageResource msgRes = new MessageResource(rb); msgResourceMap.put(name, msgRes); return msgRes; } else { return (MessageResource)msgResObj; } }}

 

3.使用

 

比如：消息资源文件为

 

message_en_US.properties文件内容:

 

button.add=Add
button.update=Modify
button.delete=Delete
button.refresh=Refresh
state.success=Operation Success
state.failure=Operation Failure
message=The disk {0} contains {1} files.

 

message_zh_CN.properties文件内容:

 

button.add=/u6dfb/u52a0
button.update=/u4fee/u6539
button.delete=/u5220/u9664
button.refresh=/u5237/u65b0
state.success=/u64cd/u4f5c/u6210/u529f
state.failure=/u64cd/u4f5c/u5931/u8d25
message=The disk {0} contains {1} files.

 

（其中，中文文件利用了native2ascii命令进行了转化）

 

使用代码如下： 

MessageResourceFactory factory = MessageResourceFactory.getInstance();MessageResource res = factory.createMessageResource("message", new Locale("zh", "CN"));String value = res.getString("button.add");String value_args = res.getString("message", new Object[]{"C", "12"});