xmlBean学习二

由上一遍的准备工作完成后，可以很简单的就进行对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;
}
/**
 * 读取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();
}
}
/**
 * 新建一个xml文件
 * @param args
 */public void createCustomer(){
/*//创建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();
     }
}
/**
 * 添加一个customer节点
 */
 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();
         }
    }   /**
  * 删除一个节点
  * @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();}

以上代码除了删除的以外都可以运行出来，唯独删除，出错，报了以下异常：

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)

经过我反编译通过上篇使用scomp生成的jar包，发现接口中定义的setNil（）方法并没有被实现重写，暂时没有想出问题出在哪，或许可能因为使用的xmlBean的版本太低导致，假如有读者也遇到问题，可以联系我，讨论一下，找出解决方法。