测试Bean:
- public class DateBean {
- private Date birthday;
- public Date getBirthday() {
- return birthday;
- }
- public void setBirthday(Date birthday) {
- this.birthday = birthday;
- }
- }
方式1:利用SimpleDateFormat的构造方法注入
- <?xml version="1.0" encoding="UTF-8"?>
- <beans xmlns="http://www.springframework.org/schema/beans"
- xmlns:p="http://www.springframework.org/schema/p" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
- xsi:schemaLocation="
- http://www.springframework.org/schema/beans
- http://www.springframework.org/schema/beans/spring-beans.xsd">
- <bean id="dateFormat" class="java.text.SimpleDateFormat">
- <constructor-arg value="yyyy-MM-dd" />
- </bean>
- <bean id="datebean" class="com.springDemo1.Date类型注入.DateBean">
- <property name="birthday">
- <bean factory-bean="dateFormat" factory-method="parse">
- <constructor-arg value="2015-12-31" />
- </bean>
- </property>
- </bean>
- </beans>
- <?xml version="1.0" encoding="UTF-8"?>
- <beans xmlns="http://www.springframework.org/schema/beans"
- xmlns:p="http://www.springframework.org/schema/p" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
- xsi:schemaLocation="
- http://www.springframework.org/schema/beans
- http://www.springframework.org/schema/beans/spring-beans.xsd">
- <!-- 自定义日期编辑器 -->
- <bean id="dateEditor"
- class="org.springframework.beans.propertyeditors.CustomDateEditor">
- <constructor-arg>
- <bean class="java.text.SimpleDateFormat">
- <constructor-arg value="yyyy-MM-dd"></constructor-arg>
- </bean>
- </constructor-arg>
- <constructor-arg value="true" />
- </bean>
- <!-- 使 Spring转换为java.util.Date -->
- <bean class="org.springframework.beans.factory.config.CustomEditorConfigurer">
- <property name="customEditors">
- <map>
- <entry key="java.util.Date">
- <ref bean="dateEditor" />
- </entry>
- </map>
- </property>
- </bean>
- </beans>
方式3:先用一个类重写PropertyEditorSupport的setAsText方法,再在配置文件中,配置转换类型就可以了,跟上面方法类似
- public class MyDatePropertyEditor extends PropertyEditorSupport {
- private String format;
- public String getFormat() {
- return format;
- }
- public void setFormat(String format) {
- this.format = format;
- }
- // text为需要转换的值,当为bean注入的类型与编辑器转换的类型匹配时就会交给setAsText方法处理
- public void setAsText(String text) throws IllegalArgumentException {
- SimpleDateFormat sdf = new SimpleDateFormat(format);
- try {
- this.setValue(sdf.parse(text));
- } catch (ParseException e) {
- e.printStackTrace();
- }
- }
- }
- <?xml version="1.0" encoding="UTF-8"?>
- <beans xmlns="http://www.springframework.org/schema/beans"
- xmlns:p="http://www.springframework.org/schema/p" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
- xsi:schemaLocation="
- http://www.springframework.org/schema/beans
- http://www.springframework.org/schema/beans/spring-beans.xsd">
- <!--方式3:创建一个类 重写PropertyEditorSupport的setAsText方法 -->
- <!-- 自定义日期编辑器 -->
- <bean class="org.springframework.beans.factory.config.CustomEditorConfigurer">
- <property name="customEditors"> <!--需要编辑的属性类型,是一个map -->
- <map>
- <entry key="java.util.Date">
- <bean class="com.springDemo1.Date类型注入.MyDatePropertyEditor">
- <property name="format" value="yyyy-MM-dd" /> <!--注入需要转换的格式 -->
- </bean>
- </entry>
- </map>
- </property>
- </bean>
- </beans>
- public class DateTest {
- @Test
- public void testName() throws Exception {
- ApplicationContext context = new ClassPathXmlApplicationContext(
- "applicationContext.xml");
- DateBean bean = (DateBean) context.getBean("datebean");
- System.out.println(bean.getBirthday());
- }
- }