Spring自定義屬性編輯器

1. 新建員工類，他有電話號碼和出生日期等信息

package com.chapter3.getterdi; import java.util.Date; public class Employee { int id; String name; PhoneNumber phoneNumber; Date birthDate; public int getId() { return id; } public void setId(int id) { this.id = id; } 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; } public Date getBirthDate() { return birthDate; } public void setBirthDate(Date birthDate) { this.birthDate = birthDate; } }

2. 新建PhoneNumber類

package com.chapter3.getterdi; public class PhoneNumber { String areaNumber; String telNumber; @Override public String toString() { return areaNumber + "-" + telNumber; } public String getAreaNumber() { return areaNumber; } public void setAreaNumber(String areaNumber) { this.areaNumber = areaNumber; } public String getTelNumber() { return telNumber; } public void setTelNumber(String telNumber) { this.telNumber = telNumber; } }

3. 新建屬性編輯器

package com.chapter3.getterdi; import java.beans.PropertyEditorSupport; public class PhoneEditor extends PropertyEditorSupport { @Override public void setAsText(String text) throws IllegalArgumentException { PhoneNumber phoneNumber = new PhoneNumber(); String[] str = text.split("-"); phoneNumber.setAreaNumber(str[0]); phoneNumber.setTelNumber(str[1]); setValue(phoneNumber); } }

4.新建日期的屬性編輯器

package com.chapter3.getterdi; import java.beans.PropertyEditorSupport; import java.text.ParseException; import java.text.SimpleDateFormat; public class DateEditor extends PropertyEditorSupport { String dateFormat; public String getDateFormat() { return dateFormat; } public void setDateFormat(String dateFormat) { this.dateFormat = dateFormat; } @Override public void setAsText(String text) throws IllegalArgumentException { SimpleDateFormat format = new SimpleDateFormat(dateFormat); try { setValue(format.parse(text)); } catch (ParseException e) { e.printStackTrace(); } } }

5. Spring的配置文件

<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd"> <!-- 自定義屬性編輯器的註冊 --> <bean class="org.springframework.beans.factory.config.CustomEditorConfigurer"> <property name="customEditors"> <map> <entry key="com.chapter3.getterdi.PhoneNumber"> <bean id="phoneEditor" class="com.chapter3.getterdi.PhoneEditor"/> </entry> <entry key="java.util.Date"> <bean id="dateEditor" class="com.chapter3.getterdi.DateEditor"> <property name="dateFormat" value="yyyy-MM-dd"/> </bean> </entry> </map> </property> </bean> <bean id="employee" class="com.chapter3.getterdi.Employee"> <property name="id" value="1"/> <property name="name" value="張三"/> <property name="phoneNumber" value="025-8630471"/> <property name="birthDate" value="1983-10-10"/> </bean> </beans> <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd"> <!-- 自定義屬性編輯器的註冊 --> <bean class="org.springframework.beans.factory.config.CustomEditorConfigurer"> <property name="customEditors"> <map> <entry key="com.chapter3.getterdi.PhoneNumber"> <bean id="phoneEditor" class="com.chapter3.getterdi.PhoneEditor"/> </entry> <entry key="java.util.Date"> <bean id="dateEditor" class="com.chapter3.getterdi.DateEditor"> <!-- 對於 所有java.util.Date類型 的變量，都採用dateEditor編輯器來處理 --> <property name="dateFormat" value="yyyy-MM-dd"/> </bean> </entry> </map> </property> </bean> <bean id="employee" class="com.chapter3.getterdi.Employee"> <property name="id" value="1"/> <property name="name" value="張三"/> <property name="phoneNumber" value="025-8630471"/> <property name="birthDate" value="1983-10-10"/> </bean> </beans> <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd"> <!-- 自定義屬性編輯器的註冊 --> <bean class="org.springframework.beans.factory.config.CustomEditorConfigurer"> <property name="customEditors"> <map> <entry key="com.chapter3.getterdi.PhoneNumber"> <bean id="phoneEditor" class="com.chapter3.getterdi.PhoneEditor"/> </entry> <entry key="java.util.Date"> <bean id="dateEditor" class="com.chapter3.getterdi.DateEditor"> <property name="dateFormat" value="yyyy-MM-dd"/> </bean> </entry> </map> </property> </bean> <bean id="employee" class="com.chapter3.getterdi.Employee"> <property name="id" value="1"/> <property name="name" value="張三"/> <property name="phoneNumber" value="025-8630471"/> <property name="birthDate" value="1983-10-10"/> </bean> </beans> <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd"> <!-- 自定義屬性編輯器的註冊 --> <bean class="org.springframework.beans.factory.config.CustomEditorConfigurer"> <property name="customEditors"> <map> <entry key="com.chapter3.getterdi.PhoneNumber"> <bean id="phoneEditor" class="com.chapter3.getterdi.PhoneEditor"/> </entry> <entry key="java.util.Date"> <bean id="dateEditor" class="com.chapter3.getterdi.DateEditor"> <property name="dateFormat" value="yyyy-MM-dd"/> </bean> </entry> </map> </property> </bean> <bean id="employee" class="com.chapter3.getterdi.Employee"> <property name="id" value="1"/> <property name="name" value="張三"/> <property name="phoneNumber" value="025-8630471"/> <property name="birthDate" value="1983-10-10"/> </bean> </beans>

 6. 測試類

package com.chapter3.getterdi; import java.lang.reflect.Field; import java.lang.reflect.InvocationTargetException; import org.apache.commons.beanutils.BeanUtils; import org.springframework.beans.factory.BeanFactory; import org.springframework.context.support.ClassPathXmlApplicationContext; public class Test { public static void main(String[] args) { BeanFactory factory = new ClassPathXmlApplicationContext("springchapter3.xml"); Employee employee = (Employee) factory.getBean("employee"); Field[] fields = employee.getClass().getDeclaredFields(); for (int i = 0; i < fields.length; i++) { try { System.out.println(fields[i].getName() + " : " + BeanUtils.getProperty(employee, fields[i].getName())); } catch (IllegalAccessException e) { e.printStackTrace(); } catch (InvocationTargetException e) { e.printStackTrace(); } catch (NoSuchMethodException e) { e.printStackTrace(); } } } }