spring屬性編輯器

 

首先定義UtilDatePropertyEdit類繼承自PropertyEditorSupport

import java.beans.PropertyEditorSupport;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
/**
* 自定義屬性編輯器
* @author yqs
*
*/
public class UtilDatePropertyEdit extends PropertyEditorSupport {

  private String format = "yyyy/MM/dd";
    
  public void setAsText(String text) throws IllegalArgumentException {
  System.out.println(text + "----");
    
    SimpleDateFormat sdf = new SimpleDateFormat(format);
    try {
      Date d = sdf.parse(text);
      this.setValue(d);
    } catch (ParseException e) {
      e.printStackTrace();
    }
  }

  public void setFormat(String format) {
    this.format = format;
  }

}

 

然後在applicationContext-editor.xml配置文件裏對編輯器進行定義，代碼如下

  <!-- 定義屬性編輯器 -->
  <bean id="customEditorConfigurer" class="org.springframework.beans.factory.config.CustomEditorConfigurer">
    <property name="customEditors">
      <map>
        <entry key="java.util.Date">
          <bean class="com.yqs.spring.UtilDatePropertyEdit">
            <property name="format" value="yyyy-MM-dd" />
          </bean>
        </entry>
      </map>
    </property>    
  </bean>

 

在配置文件裏配置一下就可以使用了

<property name="dateValue">
        <value>2008-11-25</value>
     </property>

 

以下是使用方法，包括int、String、list、set、map、arrays等的用法

public class InjectionTest extends TestCase {
  private BeanFactory factory;
    
  protected void setUp() throws Exception {
    factory = new ClassPathXmlApplicationContext("applicationContext-*.xml");
  }

  public void testInjection() {
    Bean1 bean1 = (Bean1)factory.getBean("bean1");
    System.out.println(bean1.getStrValue());
    System.out.println(bean1.getIntValue());
    
    //System.out.println(bean1.getListValue());
    List<String> list = bean1.getListValue();    
    for(String element : list) { //Enhanced for loop need Generic
      System.out.println(element);
    }
    
    Set<String> set = bean1.getSetValue();
    for(String str : set) {
      System.out.println(str);
    }
    
    Map map = bean1.getMapValue();
    Collection<String> coll = map.values();
    for(String str : coll) {
      System.out.println(str);
    }
    
    String[] strs = bean1.getArrayValue();
    for(String str : strs) {
      System.out.println(str);
    }
    
    Date d = bean1.getDateValue();
    System.out.println(d);
    
    Date d2 = bean1.getDateValue2();
    System.out.println(d2);
    
  }
}