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我正在尝试使用 XStream 将 XML 文件解析为对象,但出现此异常:

线程“主”com.thoughtworks.xstream.mapper.CannotResolveClassException 中的异常:com.thoughtworks.xstream.mapper.DefaultMapper.realClass(DefaultMapper.java:56) 上的服务器 com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper .java:30) 在 com.thoughtworks.xstream.mapper.DynamicProxyMapper.realClass(DynamicProxyMapper.java:55) [...]

这是我的 XML:

  <servers>
    <server>
      <ip>10.196.113.27</ip> 
    </server>
    <server>
      <ip>10.196.113.31</ip> 
    </server>
  </servers>

这是我的代码:

public class ServerIP {
    private String ip;

    public String getIp() {
        return ip;
    }

    public void setIp(String ip) {
        this.ip = ip;
    }
}

public class ServerHandler {

    private String fileName = "servers.xml";
    private String path = "J:\\workspace\\LOG730\\src\\Q3\\";
    private XStream xstream = new XStream(new DomDriver());

    public void readFromXML() {
        try {
            FileInputStream fis = new FileInputStream(path + fileName);
            ServerIP server = (ServerIP) xstream.fromXML(fis, new ServerIP());
            System.out.println("Host: " + server.getIp());
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
    }

异常由此触发:

    ServerHandler serverHandler = new ServerHandler();
    serverHandler.readFromXML();
4

2 回答 2

6

尝试添加一个类 Servers 来保存您的 ServerIP 实例并添加以下行:

xstream.alias("servers", Servers.class);
xstream.alias("server", ServerIP.class);

在这里你可以找到一个关于别名的简单教程:http: //x-stream.github.io/alias-tutorial.html

于 2012-05-24T15:13:17.663 回答
3
@XStreamAlias("server")
public class ServerIP {
    private String ip;

    public String getIp() {
        return ip;
    }

    public void setIp(String ip) {
        this.ip = ip;
    }
}

对不起,答案不完整,我分心并在完成之前发布。同时@Teg 指出了这个方向。

于 2012-05-24T15:12:55.760 回答