| BY: icess Blog: http://blog.matrix.org.cn/page/icess
在Spring中处理I18N问题和使用Java里面的类基本上是一样的.使用org.springframework.context.support.ResourceBundleMessageSource
然后注入资源文件(一个名字为basename的属性),然后就可以在Context中使用资源文件了, 如下为一个配置示例: test.xml
<?
xml
version
=
"1.0"
encoding
=
"UTF-8"
?><!
DOCTYPE
beans
PUBLIC
"-//SPRING//DTD BEAN//EN"
"spring-beans.dtd"
><
beans
>
<
bean
id
=
"messageSource"
class
=
"org.springframework.context.support.ResourceBundleMessageSource"
>
<
property
name
=
"basename"
>
<!-- 注意此处设置 资源 名字 和路径 -->
<
value
>
test/i18n/test
</
value
>
</
property
>
</
bean
>
</
beans
>
下面为资源文件 test.properties
name =
\u51B0\u96E8
sex =
\u5148\u751F
test_zh.properties
name =
\u51B0\u96E8
sex =
\u5148\u751F
test_en_US.properties
name =
ice
rain
sex =
male
下面是一个简单的测试类:
package
test.i18n;
import
java.util.Locale;
import
org.springframework.context.ApplicationContext;
import
org.springframework.context.support.ClassPathXmlApplicationContext;
public
class
TestI18n {
/**
*
@param
args
*/
public
static
void
main(String[] args) {
//
TODO
Auto-generated method stub
ApplicationContext context =
new
ClassPathXmlApplicationContext(
"test/i18n/test.xml"
); String text = context.getMessage(
"sex"
,
new
Object[0], Locale.
US
); String textZH = context.getMessage(
"sex"
,
new
Object[0], Locale.
CHINA
); System.
out
.println(text +
" 中文:"
+textZH); }}
很简单,这样就可以了.
下面来看看Spring中的属性自定义编辑器,这个和Hibernate中的自定义属性差不多 的. 例如下面我们要看到了例子,映射一个电话号码,有areaCode,prefix和 number, 如果不使用自定义属性编辑器那么就要分别注入上面的3个代码,麻烦. 如果使用自定义属性编辑器,直接注入一个-分开的数字序列就可以了 如
888-666-9999
.在下面的例子中的Contact.java类有个PhoneNumber属性,里面保存了上面的3个代码,两个类的代码如下:
package
test.propertyEditor;
public class
Contact {
private
PhoneNumber phoneNumber;
private
String name;
public
Contact() {}
public
String getName() {
return
name;
}
public void
setName(String name) {
this
.name = name;
}
public
PhoneNumber getPhoneNumber() {
return
phoneNumber;
}
public void
setPhoneNumber(PhoneNumber phoneNumber) {
this
.phoneNumber = phoneNumber;
}
}
PhoneNumber.java
package
test.propertyEditor;
public class
PhoneNumber {
private
String areaCode;
private
String prefix;
private
String number;
public
PhoneNumber() {
}
public
PhoneNumber(String areaCode,String prefix,String number) {
this
.areaCode = areaCode;
this
.prefix = prefix;
this
.number = number;
}
public
String getAreaCode() {
return
areaCode;
}
public void
setAreaCode(String areaCode) {
this
.areaCode = areaCode;
}
public
String getNumber() {
return
number;
}
public void
setNumber(String number) {
this
.number = number;
}
public
String getPrefix() {
return
prefix;
}
public void
setPrefix(String prefix) {
this
.prefix = prefix;
}
}
然后定义一个用来编辑PhoneNumber的编辑器PhoneEditor.java 如下:
package
test.propertyEditor;
import
java.beans.PropertyEditorSupport;
public class
PhoneEditor
extends
PropertyEditorSupport {
public void
setAsText(String textValue) {
String stripped = stripNonNumber(textValue);
String areaCode = stripped.substring(
0
,
3
);
String prefix = stripped.substring(
3
,
6
);
String number = stripped.substring(
6
);
PhoneNumber phone =
new
PhoneNumber(areaCode,prefix,number);
setValue(phone);
}
private
String stripNonNumber(String original) {
StringBuilder allNumeric =
new
StringBuilder();
for
(
int
i =
0
; i < original.length(); i ++) {
char
c = original.charAt(i);
if
(Character.isDigit(c)) {
allNumeric.append(c);
}
}
return
allNumeric.toString();
}
}
继承java里面的属性编辑器,实现里面的一个方法就可以了, 下面就是在配置文件中注册该编辑器.如下:
testPropertyEditor.xml
<?
xml
version
=
"1.0"
encoding
=
"UTF-8"
?><!
DOCTYPE
beans
PUBLIC
"-//SPRING//DTD BEAN//EN"
"spring-beans.dtd"
><
beans
>
<
bean
id
=
"customEditorConfigurer"
class
=
"org.springframework.beans.factory.config.CustomEditorConfigurer"
>
<
property
name
=
"customEditors"
>
<
map
>
<
entry
key
=
"test.propertyEditor.PhoneNumber"
>
<
bean
id
=
"phoneEditor"
class
=
"test.propertyEditor.PhoneEditor"
></
bean
>
</
entry
>
</
map
>
</
property
>
</
bean
>
<!-- 如果不注册上面自定义Editor的实现, 需要注册一个PhoneNumber的bean,设置其属性然后再注册Contact的PhoneNumber的属性-->
<
bean
id
=
"contact"
class
=
"test.propertyEditor.Contact"
>
<
property
name
=
"phoneNumber"
>
<
value
>
888-666-9999
</
value
>
</
property
>
</
bean
></
beans
>
最后来测试一下注册的结果是否正确:
package
test.propertyEditor;
import
org.springframework.context.ApplicationContext;
import
org.springframework.context.support.ClassPathXmlApplicationContext;
public class
TestPropertyEditor {
/**
*
@param
args
*/
public static void
main(String[] args) {
// TODO Auto-generated method stub
ApplicationContext context =
new
ClassPathXmlApplicationContext(
"test/propertyEditor/testPropertyEditor.xml"
);
Contact c = (Contact) context.getBean(
"contact"
);
System.out.println(c.getPhoneNumber().getAreaCode());
System.out.println(c.getPhoneNumber().getPrefix());
System.out.println(c.getPhoneNumber().getNumber());
}
}
ok, 很简单,下一次来看看,Spring提供的一下比较有意思的功能.如定时,发送Email等. |
