如何在具有相同标记名称的java中解组嵌套子元素？

在Java中，我可以通过将值添加到我的POJO中来读取XML。 但我不知道如何才能对子子节点做同样的事情。 我提供了我的POJO示例和XML子类节点。

XML：

  1336 CL 0  06:56:43.0 06:56:43.0  2017-01-25   

POJO：

 @XmlRootElement(name = "rootNode") @XmlAccessorType (XmlAccessType.FIELD) public class readingXml { private int id; @XmlElement(name = "node") private String node; @XmlElement(name = "state") private String state; // How to do the same with sub child-nodes @XmlElement(name = "ip_addresses") private String ip_addresses; // What to do here? @XmlElement(name = "lease_date") private String lease_date; // Getters and setters for all above 

Answer 1

你需要这样的东西：

 @XmlElement(name = "ip_addresses") private IPAddresses ipAddresses; 

和IP地址POJO类：

 @XmlRootElement(name = "ip_addresses") @XmlAccessorType(XmlAccessType.FIELD) public class IPAddresses implements Serializable { private final static long serialVersionUID = 1L; @XmlElement(name = "ip_address") private List ipAddresses; public List getIpAddresses() { return ipAddresses; } public void setIpAddresses(List ipAddresses) { this.ipAddresses = ipAddresses; } } 

其中IPAddress是描述单个元素结构的另一个POJO类。

 @XmlRootElement(name = "ip_address") @XmlAccessorType(XmlAccessType.FIELD) public class IPAddress implements Serializable { private final static long serialVersionUID = 1L; @XmlValue protected String content; @XmlAttribute(name = "type") protected String type; public void setContent(String content) { this.content = content; } public String getContent() { return content; } public void setType(String content) { this.type = type; } public String getType() { return type; } } 

编辑要打印它们，请执行以下操作：

 for (IPAddress ipAddress in custinfo.getIpAddresses().getIpAddresses()) { System.out.println("value: " + ipAddress.getContent()); System.out.println("type: " + ipAddress.getType()); } 

Answer 2

您可以将“ip_addresses”的类型从String更改为另一个POJO类。

例如

  @XmlElement(name = "ip_addresses") private List
 ip_addresses; 

然后将您的地址POJO定义为

 @XmlAccessorType(XmlAccessType.FIELD) @XmlRootElement(name = "ip_addresses") public class Address { @XmlElement(type = "DOC") protected String ip_address1; @XmlElement(type = "PE") protected String ip_address2; public String getIp_address1() { return ip_address1; } public void setIp_address1(String value) { this.ip_address1= value; } public String getIp_address2() { return ip_address2; } public void setIp_address2(String value) { this.ip_address2= value; } }