我正在使用Velocity和消息资源包来生成html页面。当我将墨西哥指定为我的语言环境时,我的messages-es_MX.properties将被处理为消息资源的源。这正如我所料。但是人物(áéíóúüñ¿)没有正确显示。
我的讯息属性:
customer.greeting=áéíóúüñ¿¡
对于我的第一次尝试,我有以下内容:
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
UTF-8
ISO-8859-1
输出到${customer.greeting}
的html:
�������
然后我意识到属性文件的编码不正确;它也应该是UTF-8。
第二次尝试:
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
UTF-8
UTF-8
输出到html:
áéÃóúüñ¿¡
有关如何使其发挥作用的任何建议吗?
答案 0 :(得分:0)
嗯,事实证明这比我想象的要复杂,但这是解决方案。在开始之前,请确保所有html和属性文件都以UTF-8编码。并且所有Velocity配置也参考UTF-8。不应该引用ISO-8859-1。
根本问题是,默认情况下,ResourceBundle
假定属性文件采用ISO-8859-1
编码。可以覆盖它,但需要一段自定义代码。
而不是打电话
ResourceBundle bundle = ResourceBundle.getBundle("messages", MEXICO);
我需要为自定义Control实现添加一个参数:
ResourceBundle bundle = ResourceBundle.getBundle("messages", MEXICO, new UTF8Control());
UTF8Control类如下所示:
package test;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import java.util.Locale;
import java.util.PropertyResourceBundle;
import java.util.ResourceBundle;
import java.util.ResourceBundle.Control;
public class UTF8Control extends Control {
public ResourceBundle newBundle(String baseName, Locale locale,
String format, ClassLoader loader, boolean reload)
throws IllegalAccessException, InstantiationException, IOException {
// The below is a copy of the default implementation.
String bundleName = toBundleName(baseName, locale);
String resourceName = toResourceName(bundleName, "properties");
ResourceBundle bundle = null;
InputStream stream = null;
if (reload) {
URL url = loader.getResource(resourceName);
if (url != null) {
URLConnection connection = url.openConnection();
if (connection != null) {
connection.setUseCaches(false);
stream = connection.getInputStream();
}
}
} else {
stream = loader.getResourceAsStream(resourceName);
}
if (stream != null) {
try {
// Only this line is changed to make it to read properties files
// as UTF-8.
bundle = new PropertyResourceBundle(new InputStreamReader(
stream, "UTF-8"));
} finally {
stream.close();
}
}
return bundle;
}
}
归功于最初发布this related answer的@BalusC。
所以,第1部分解决了。但是仍然存在问题,因为我使用的是VelocityTools,我可以在ResourceTool
的源代码中看到它调用ResourceBundle.getBundle(...)
而不传递任何Control实现。这意味着它将使用ISO-8859-1,我无法传入我的UTF8Control ......
除非我覆盖ResourceTool类的方法来获取包:
package test;
import java.util.Locale;
import java.util.ResourceBundle;
import org.apache.velocity.tools.ConversionUtils;
import org.apache.velocity.tools.generic.ResourceTool;
public class UTF8ResourceTool extends ResourceTool {
/**
* Retrieves the {@link ResourceBundle} for the specified baseName and
* locale, if such exists, using UTF-8 encoding. If the baseName or locale is null or if the
* locale argument cannot be converted to a {@link Locale}, then this will
* return null.
*/
protected ResourceBundle getBundle(String baseName, Object loc) {
Locale locale = (loc == null) ? getLocale() : toLocale(loc);
if (baseName == null || locale == null) {
return null;
}
return ResourceBundle.getBundle(baseName, locale, new UTF8Control());
}
/* Copied here from parent class because it's private there */
private Locale toLocale(Object obj) {
if (obj == null) {
return null;
}
if (obj instanceof Locale) {
return (Locale) obj;
}
String s = String.valueOf(obj);
return ConversionUtils.toLocale(s);
}
}
在我的UTF8ResourceTool类中,我只覆盖一个方法getBundle
(我必须从父类逐字复制一个私有方法)。获取资源包时,重写的方法将UTFControl作为第三个参数传递,以便我们可以使用UTF-8编码提取资源。
现在唯一要做的就是更新我的Velocity配置,以便我引用自定义UTF8ResourceTool
而不是Velocity Tools&#39; ResourceTool
:
EasyFactoryConfiguration config = new EasyFactoryConfiguration();
config.toolbox(Scope.APPLICATION).tool("msg", UTF8ResourceTool.class)
.property("bundles", "messages/messages").property("locale", locale)
.tool("date", DateTool.class).tool("number", NumberTool.class)
.tool("string", StringTool.class).tool("esc", EscapeTool.class)
.tool("base64", Base64Tool.class);
将所有内容放在一起,${customer.greeting}
的html输出为:
áéíóúüñ¿¡