xmlBean學習二，xmlbean學習

xmlBean學習二，xmlbean學習

由上一遍的准備工作完成後，可以很簡單的就進行對xml文件的操作，

package com;

import java.io.File;
import java.io.IOException;

import org.apache.xmlbeans.XmlException;

import sample.xmlbean.AddressType;
import sample.xmlbean.BillingAddressType;
import sample.xmlbean.CustomerType;
import sample.xmlbean.CustomersDocument;
import sample.xmlbean.CustomersDocument.Customers;
import sample.xmlbean.PrimaryAddressType;

public class CustomerXMLBean  {

	private String fileName=null;
	public CustomerXMLBean(String fileName){
		this.fileName=fileName;
	}
	/**
	 * 讀取xml文件
	 */
	public void customerReader(){
		File file = new File(fileName);
		try {
			CustomersDocument document = CustomersDocument.Factory.parse(file);
			Customers customers = document.getCustomers();
			//System.out.println(customers);
			CustomerType[] types = document.getCustomers().getCustomerArray();
			for(CustomerType customer:types){
				System.out.println(customer.getId());
				System.out.println(customer.getGender());
				System.out.println(customer.getFirstname()+" "+customer.getLastname());
				System.out.println(customer.getPhoneNumber());
				AddressType address = customer.getAddress();
				//System.out.println(address);
				PrimaryAddressType primaryAddress = address.getPrimaryAddress();
				BillingAddressType billingAddress = address.getBillingAddress();
				System.out.println("---------primaryAddress----------");
				System.out.println(primaryAddress.getAddressLine1());
				System.out.println(primaryAddress.getAddressLine2());
				System.out.println(primaryAddress.getPostalCode());
				System.out.println("---------billingAddress----------");
				System.out.println(billingAddress.getReceiver());
				System.out.println(billingAddress.getPostalCode());
				System.out.println(billingAddress.getAddressLine1());
			}
		} catch (XmlException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
	/**
	 * 新建一個xml文件
	 * @param args
	 */
	
	public void createCustomer(){
		/*//創建document
		CustomersDocument doc = CustomersDocument.Factory.newInstance();
		//添加customer
		CustomerType customer = doc.addNewCustomers().addNewCustomer();
		customer.setId(3);
		customer.setGender("female");
		customer.setFirstname("zhang");
		customer.setLastname("san");
		customer.setPhoneNumber("123456789");
		//添加address
		AddressType address = customer.addNewAddress();
		//添加新的BillingAdress
		BillingAddressType billingAddress = address.addNewBillingAddress();
		billingAddress.setReceiver("lisi");
		billingAddress.setPostalCode("53600");
		billingAddress.setAddressLine1("guohui");
		billingAddress.setAddressLine2("E5");
		//添加新的PrimaryAddress
		PrimaryAddressType primaryAddress = address.addNewPrimaryAddress();
		primaryAddress.setPostalCode("23645456");
		primaryAddress.setAddressLine1("wanshoulu");
		primaryAddress.setAddressLine2("302");
		File file = new File(fileName);
		try {
			doc.save(file);
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}*/
		 try{
         // Create Document<br />
         CustomersDocument doc = CustomersDocument.Factory.newInstance();
         // Add new customer<br />
         CustomerType customer = doc.addNewCustomers().addNewCustomer();
         // set customer info<br />
         customer.setId(3);
         customer.setFirstname("Jessica");
         customer.setLastname("Lim");
         customer.setGender("female");
         customer.setPhoneNumber("1234567"); // Add new address<br />
         AddressType address = customer.addNewAddress(); // Add new<br />
         // PrimaryAddress<br />
         PrimaryAddressType primaryAddress = address.addNewPrimaryAddress();
         primaryAddress.setPostalCode("350106");
         primaryAddress.setAddressLine1("#25-1");
         primaryAddress.setAddressLine2("SHINSAYAMA 2-CHOME"); // Add new<br />
         // BillingAddress<br />
         BillingAddressType billingAddress = address.addNewBillingAddress();
         billingAddress.setReceiver("Ms Danielle");
         billingAddress.setPostalCode("350107");
         billingAddress.setAddressLine1("#167");
         billingAddress.setAddressLine2("NORTH TOWER HARBOUR CITY");
         File xmlFile = new File(fileName);
         doc.save(xmlFile);
     } catch (Exception ex){
         ex.printStackTrace();
     }
	}
	/**
	 * 添加一個customer節點
	 */
	 public void addNewCustomer() {  
        try {  
	        File xmlFile = new File(fileName);  
	        CustomersDocument doc = CustomersDocument.Factory.parse(xmlFile);  
	        CustomerType customer = doc.getCustomers().addNewCustomer();
	       System.out.println(customer.documentProperties()+"~~~~~~~~~");
	        customer.setId(3);
			customer.setGender("female");
			customer.setFirstname("zhang");
			customer.setLastname("san");
			customer.setPhoneNumber("123456789");
			//添加address
			AddressType address = customer.addNewAddress();
			//添加新的BillingAdress
			BillingAddressType billingAddress = address.addNewBillingAddress();
			billingAddress.setReceiver("lisi");
			billingAddress.setPostalCode("53600");
			billingAddress.setAddressLine1("guohui");
			billingAddress.setAddressLine2("E5");
			//添加新的PrimaryAddress
			PrimaryAddressType primaryAddress = address.addNewPrimaryAddress();
			primaryAddress.setPostalCode("23645456");
			primaryAddress.setAddressLine1("wanshoulu");
			primaryAddress.setAddressLine2("302");
			//保存
	        doc.save(xmlFile);  
         } catch (Exception ex) {  
          ex.printStackTrace();  
         }  
    }  
	
	 /**
	  * 刪除一個節點
	  * @param args
	  */
	 public void deleteCustomer(){
		 File file = new File(fileName);
		 try {
			CustomersDocument doc = CustomersDocument.Factory.parse(file);
			CustomerType[] customers = doc.getCustomers().getCustomerArray();
			for (int i = 0; i < customers.length; i++) {
			        CustomerType customer = customers[i];
			        if(customer.getId()==3){
	                        customer.setNil() ;
	                        break;
			        }
			}
			doc.save(file);
		} catch (XmlException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		 
	 }
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		CustomerXMLBean b = new CustomerXMLBean("E:\\code\\workspace\\XmlBean\\customers.xml");
		CustomerXMLBean b1 = new CustomerXMLBean("E:\\code\\workspace\\XmlBean\\customers1.xml");
		b1.createCustomer();
		//b.addNewCustomer();
		b.deleteCustomer();
		b1.customerReader();
		b.customerReader();
		
	}

以上代碼除了刪除的以外都可以運行出來，唯獨刪除，出錯，報了以下異常：

Exception in thread "main" org.apache.xmlbeans.impl.values.XmlValueNotNillableException
	at org.apache.xmlbeans.impl.values.XmlObjectBase.setNil(XmlObjectBase.java:624)
	at com.CustomerXMLBean.deleteCustomer(CustomerXMLBean.java:167)
	at com.CustomerXMLBean.main(CustomerXMLBean.java:187)

 經過我反編譯通過上篇使用scomp生成的jar包，發現接口中定義的setNil（）方法並沒有被實現重寫，暫時沒有想出問題出在哪，或許可能因為使用的xmlBean的版本太低導致，假如有讀者也遇到問題，可以聯系我，討論一下，找出解決方法。