spring 注入枚举类型和日期类型

Spring 注入枚举类型和日期类型

Cup类：

package Test201402;

import java.util.Date;

public class Cup {
	private Long num;
	private Color color;
	private Date generator_date;
	private Class<?> prop;
	
	public Cup() {}
	
	public Cup(Long num, Color color, Date generator_date) {
		super();
		this.num = num;
		this.color = color;
		this.generator_date = generator_date;
	}
	public Long getNum() {
		return num;
	}
	public void setNum(Long num) {
		this.num = num;
	}
	public Color getColor() {
		return color;
	}
	public void setColor(Color color) {
		this.color = color;
	}
	public Date getGenerator_date() {
		return generator_date;
	}
	public void setGenerator_date(Date generator_date) {
		this.generator_date = generator_date;
	}

	public Class<?> getProp() {
		return prop;
	}

	public void setProp(Class<?> prop) {
		this.prop = prop;
	}
}

1、 注入枚举类型

只要把枚举类型当成静态常量即可。

// java 类

package Test201402;

public enum Color {
	red,
	blue,
	green,
	orange,
	white,
	black
}

// 配置文件

<bean id="cup" class="Test201402.Cup">
	<property name="num" value="1"/>
	<property name="color" value="red"/>
	</property>
</bean>

2、 注入日期类型

由于日期类型不是常规类型，需要通过java.text.DateFormat.parse()解析，或者通过重写spring熟悉方法。

①、利用工厂注入方式，通过java.text.DateFormat.parse()解析日期字符串

// 配置文件

<!-- 方式一:利用工厂注入方式，通过java.text.DateFormat.parse()解析日期字符串， -->
<bean id="dateFormat" class="java.text.SimpleDateFormat">
<constructor-arg index="0" value="yyyy-MM-dd"/>
</bean>
<bean id="cup" class="Test201402.Cup">
	<property name="num" value="1"/>
	<property name="color" value="red"/>
	<property name="generator_date" >
		<bean factory-bean="dateFormat" factory-method="parse">
		<constructor-arg value="2014-02-10"/>
		</bean>
	</property>
</bean>

②、通过重写spring熟悉方法，首先需要继承PropertyEditorSupport类重写setAsText方法，然后配置xml如下

继承PropertyEditorSupport类：

package Test201402;

import java.beans.PropertyEditorSupport;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

public class MyCustomerEditor extends PropertyEditorSupport{
	
	private String format;
	
	public String getFormat() {
		return format;
	}
	public void setFormat(String format) {
		this.format = format;
	}

	@Override
	public void setAsText(String text) throws IllegalArgumentException {
		DateFormat df = new SimpleDateFormat(format);
		try {
			Date date = df.parse(text);
			this.setValue(date);
		} catch (ParseException e) {
			e.printStackTrace();
		}
	}

}

测试类：

package Test201402;

import static org.junit.Assert.assertEquals;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

import org.junit.Before;
import org.junit.Test;
import Test201309.BaseTest;
public class Test20140210 extends BaseTest{
	
	@Test
	public void testDate(){
		Cup cup = bf.getBean("cup",Cup.class);
		assertEquals(cup.getColor(),Color.red);
		assertEquals(cup.getNum(),1L);
		Calendar calendar = Calendar.getInstance();
		calendar.set(2014, 1, 10, 0, 0, 0);
		assertEquals(cup.getGenerator_date(),calendar.getTime());
	}
	
	@Before
	public void init(){
		this.setBf("conf/config_20140210.xml");
	}
}

// 配置文件

<bean id="cup" class="Test201402.Cup">
	<property name="num" value="1"/>
	<property name="color" value="red"/>
	<property name="generator_date" >
		<value>2014-02-10</value>
	</property>
</bean>
<!-- 方式二：通过重写spring熟悉方法，首先需要继承PropertyEditorSupport类重写setAsText方法，然后配置xml如下--> 
<bean id="customDateEditor" class="org.springframework.beans.factory.config.CustomEditorConfigurer">
	<property name="customEditors">
	<map>
		<entry key="java.util.Date">
			<bean class="Test201402.MyCustomerEditor">
				<property name="format" value="yyyy-MM-dd"/>
			</bean>
		</entry>
	</map>
	</property>
</bean>