XStream工具類解析XML
阿新 • • 發佈:2019-02-20
這裡使用XUtils進行網路請求XML,使用XStream進行解析XML,封裝成集合
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- XML資料
<root><resultcode>200</resultcode><reason>success</reason><result><item><id>242</id><catalog>中國文學</catalog></item><item><id>252</id><catalog>人物傳記</catalog ></item><item><id>244</id><catalog>兒童文學</catalog></item><item><id>248</id><catalog>歷史</catalog></item><item><id>257</id><catalog>哲學</catalog></item><item><id>243</id><catalog >外國文學</catalog></item><item><id>247</id><catalog>小說</catalog></item><item><id>251</id><catalog>心靈雞湯</catalog></item><item><id>253</id><catalog>心理學</catalog></item><item><id>250</id ><catalog>成功勵志</catalog></item><item><id>249</id><catalog>教育</catalog></item><item><id>245</id><catalog>散文</catalog></item><item><id>256</id><catalog>理財</catalog></item><item><id>254</id><catalog>管理</catalog></item><item><id>246</id><catalog>經典名著</catalog></item><item><id>255</id><catalog>經濟</catalog></item><item><id>258</id><catalog>計算機</catalog></item></result><error_code>0</error_code></root>
- xml資料對應的bean類(注意欄位要新增完整)
- package com.example.bean;
import java.util.ArrayList;
import com.thoughtworks.xstream.annotations.XStreamAlias;
import com.thoughtworks.xstream.annotations.XStreamImplicit;
//添加註解
@XStreamAlias("root")
public class MyRoot {
public String resultcode;
public String reason;
public String error_code;
@XStreamAlias("result")
public MyResult result;
public static class MyResult
{
@XStreamImplicit(itemFieldName="item")
public ArrayList<MyItem> item;
public static class MyItem
{
public String id;
public String catalog;
}
}
}
- 在Activity中
-package com.example.myandroid_xmlstream;
import java.util.ArrayList;
import com.example.bean.MyRoot;
import com.example.bean.MyRoot.MyResult.MyItem;
import com.lidroid.xutils.HttpUtils;
import com.lidroid.xutils.exception.HttpException;
import com.lidroid.xutils.http.ResponseInfo;
import com.lidroid.xutils.http.callback.RequestCallBack;
import com.lidroid.xutils.http.client.HttpRequest.HttpMethod;
import com.thoughtworks.xstream.XStream;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
public class MainActivity extends Activity {
//xml路徑
private String url="http://apis.juhe.cn/goodbook/catalog?key=cdcde130a384bdf960030a563e7e1954&dtype=xml";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//請求網路
getNetWork(url);
}
private void getNetWork(String path) {
//建立請求物件
HttpUtils httpUtils = new HttpUtils();
//設定傳送的請求方式,路徑,返回的回撥方法
httpUtils.send(HttpMethod.GET, path, new RequestCallBack<String>() {
//請求失敗
@Override
public void onFailure(HttpException arg0, String arg1) {
}
//請求成功
@Override
public void onSuccess(ResponseInfo<String> arg0) {
//獲取xml字串
String xmlString = arg0.result;
//解析xml
xStreamXml(xmlString);
}
});
}
//解析xml的方法
private void xStreamXml(String xmlString) {
//建立解析xml的工具類物件
XStream xs = new XStream();
//處理註解
xs.processAnnotations(MyRoot.class);
//根據xml資料進行反射成bean類
MyRoot root = (MyRoot) xs.fromXML(xmlString);
//建立對應的集合
ArrayList<MyItem> ilist = new ArrayList<MyItem>();
//為集合賦值
ilist = root.result.item;
//遍歷集合列印得出的資料
for (MyItem myItem : ilist) {
System.out.println("id="+myItem.id+"::catalog="+myItem.catalog);
}
}
}