Question

我有XML：

<?xml version="1.0" encoding="UTF-8"?>
<addresses xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:noNamespaceSchemaLocation='schema_task1_1.xsd'>

  <address>
    <name>Bill</name>
    <city>NewYork</city>
    <street>First</street>
    <phone type='mobile'>+19139130000</phone>
    <documents>
      <document type='driving_permit'>9045798749</document>
      <document type='passport'>3451231231</document>
    </documents>
  </address>

  <address>
    ...
  </address>

</addresses>

Java类：

@Root(name = "addresses")
public class Addresses {

    @ElementList(inline = true, entry = "address", required = false, type = Address.class)
    private List<Address> addresses = new ArrayList<Address>();

public class Address {

    @Element(required = false)
    private String name;
    @Element(required = false)
    private String city;
    @Element(required = false)
    private String street;
    @ElementMap(entry = "phone", key = "type", attribute = true, inline = true)
    private Map<String, String> phones;
    @ElementMap(entry = "documents", key = "type", attribute = true, inline = true)
    private Map<String, String> documents = new HashMap<String, String>();

除documents外，所有字段都反序列化成功。尝试反序列化时始终为null。我很瘦我在@ElementMap注释中有错误，但我不知道到底是什么。我做错了什么？

PS。我无法更改对象结构，因为它被另一个解析器使用。

Answer 1

您必须创建一个中间类来处理“文档”。该类将包含“文档”的地图：

class Address {
...
    @Element(required = false)
    private Documents documents;
}
class Documents {
    @ElementMap(entry = "document", key = "type", attribute = true, inline = true)
    private Map<String, String> documents = new HashMap<String, String>();
}

Answer 2

我解决了我的问题，但不太好。如果你知道更好的解决方案，请告诉我。我刚刚修复了document Map的注释，并添加了uselessVariable注释。它有效并且不会破坏旧代码。

UPD。我发现更好的解决方案添加了@Path注释。

@Root(name = "addresses")
public class Addresses {

    @ElementList(inline = true, entry = "address", required = false, type = Address.class)
    private List<Address> addresses = new ArrayList<Address>();

public class Address {

    @Element(required = false)
    private String name;
    @Element(required = false)
    private String city;
    @Element(required = false)
    private String street;
    @ElementMap(entry = "phone", key = "type", attribute = true, inline = true)
    private Map<String, String> phones;
    @Path("./documents")
    @ElementMap(entry = "document", key = "type", attribute = true, inline = true) //changed this line
    private Map<String, String> documents = new HashMap<String, String>();

SimpleXML反序列化Map <string，string =“”> </string，>

2 个答案: