Spring之PropertyEditor

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1 理论知识

http://stamen.iteye.com/blog/1525668

http://layznet.iteye.com/blog/908566

2 代码实现

Worker.java

package study.property;public class Worker {private int id;private String name;private int salary;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 int getSalary() {return salary;}public void setSalary(int salary) {this.salary = salary;}@Overridepublic String toString() {// TODO Auto-generated method stubreturn "worker[id:"+id+",name:"+name+",salary:"+salary+"]";}}

WorkerEditor.java

package study.property;import java.beans.PropertyEditorSupport;public class WorkerEditor extends PropertyEditorSupport {public void setAsText(String input) {String[] tokens=input.split(",");int length=tokens.length;int id= length>0 ? Integer.parseInt(tokens[0]):0;String name= length>1 ? tokens[1]:"null";int salary= length>2 ? Integer.parseInt(tokens[2]):0;Worker worker=new Worker();worker.setId(id);worker.setName(name);worker.setSalary(salary);setValue(worker);}}

WorkerFactory,java

package study.property;public class WorkerFactory {private Worker worker;public Worker getWorker() {return worker;}public void setWorker(Worker worker) {this.worker = worker;}}

Worker.xml

<?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:context="http://www.springframework.org/schema/context"xmlns:p="http://www.springframework.org/schema/p"xsi:schemaLocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans-3.0.xsdhttp://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context-3.0.xsd"><bean id="workerFactory" class="study.property.WorkerFactory">    <property name="worker" value="12,wahaha,20"/></bean><bean id="editorConfig" class="org.springframework.beans.factory.config.CustomEditorConfigurer" >          <property name="customEditors">          <!--CustomEditorConfigurer的属性customEditors是Map类型，        Map的key表示遇到哪一个类型时要使用PropertyEditor，value表示对应要使用的PropertyEditor实现类  -->            <map>                  <entry key="study.property.Worker">                      <bean class="study.property.WorkerEditor"/>                  </entry>              </map>        </property>      </bean> </beans>

LearnPropertyEditor.java

package study.property;import java.beans.PropertyEditorManager;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;public class LearnPropertyEditor {public static void main(String[] args) {Worker worker=null;/** * 第一种方式 */WorkerEditor editor=new WorkerEditor();editor.setAsText("10,llq,28");worker=(Worker)editor.getValue();System.out.println(worker);/** * 第二种方式 */PropertyEditorManager.registerEditor(Worker.class, WorkerEditor.class);WorkerEditor editor2=(WorkerEditor) PropertyEditorManager.findEditor(Worker.class);editor2.setAsText("11,ppp,29");worker=(Worker)editor2.getValue();System.out.println(worker);/** * 第三种方式 */ApplicationContext context=new ClassPathXmlApplicationContext("worker.xml");WorkerFactory factory=(WorkerFactory)context.getBean("workerFactory");worker=factory.getWorker();System.out.println(worker);}}

运行结果：

worker[id:10,name:llq,salary:28]worker[id:11,name:ppp,salary:29]worker[id:12,name:wahaha,salary:20]

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