Question

我是Android开发的新手，我正在尝试使用XMLRPC在RESULT中接收HashMap，但每次崩溃应用程序时，这都是我的代码，请指教我：

  Object RESULT =  XMLRPCClient.callEx(methodname,new Object[] {params});
         Map FRESULT= (Map) RESULT;

Answer 1

我一直在处理这个问题，并设法以这种方式获得价值：

try {
    Object[] answer = (Object[]) client.call("call", sessionId, method, params);
    HashMap map = (HashMap) answer[0]; // get first item of the response because in my case the response was an array of Objects with one item in it holding the HashMap
    Object[] records = (Object[]) map.get("records"); // I only needed values from "records" key
    for (int i = 0; i < records.length; i++) {
        HashMap record = (HashMap) records[i]; // create another map from the records values, in my case uid's of categories
        Category cat = new Category(); // creating new instance of my Category class
        cat.setCatUid((String) record.get("uid")); // calling a method of the Category class to set Uid to the value from record HashMap
        m_categories.add(cat); // this adds it to my ArrayList<Category>
    }
} catch (XMLRPCException e) {
    Log.e(method, "Exception", e);
}

我确定它一团糟，我自己也是Java的noob，但它对我有用。希望它有所帮助：）

Answer 2

现在，应用程序在实施后平静地传递了这个：

 Object RESULT = XmlRpcConnect.ServerCall_a(method,new Object[] {params});
          Map<String, Object> FRESULT= (HashMap<String, Object>) RESULT;

我的XmlRpcConnect类中有一些更改：

@SuppressWarnings("unchecked");
public static Object ServerCall_a(String method, Object[] params){
            XMLRPCClient client = new XMLRPCClient(server);
            HashMap<String, Object> result=null;
                  try{
            result = (HashMap<String, Object>) client.callEx(method, params);
                                                }
                  catch(XMLRPCFault f){
                      //   result = ("Fault message: " + f.getMessage());
                                                                }
                  catch(XMLRPCException e){
                      // result = ("Exception message: " + e.getMessage());
                                                                }
                       return result;
                                }

但是当尝试提取值时，它会再次崩溃，任何建议：

              if (FRESULT.get("status") == null) {
                          result = (String) FRESULT.get("status");
                          toastDialog(result);
               }

在XMLRPC结果中使用HashMap

2 个答案: