Android解析XML展示到ListView運行后的效果圖如下：
服務端的請求頁面
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> <a href="studentActiongetXML.action" rel="external nofollow" >獲取XML數據</a><br/> </body> </html>
服務端返回結果的頁面
<?xml version="1.0" encoding="UTF-8" ?>
<%@ page language="java" contentType="text/xml; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<students>
<c:forEach items="${students}" var="s">
<student name="${s.name}">
<sex>${s.sex}</sex>
</student>
</c:forEach>
</students>
服務端的Java代碼
package com.zking.action;
import java.util.ArrayList;
import java.util.List;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.zking.entity.Student;
public class StudentAction extends ActionSupport{
public String getXML() throws Exception {
//查詢數據庫，獲取數據
List<Student> students=new ArrayList<>();
for (int i = 1; i <=20; i++) {
Student student=new Student("小霜"+i, "女");
students.add(student);
}
//將對象集合保存到請求域中
ServletActionContext.getRequest().setAttribute("students", students);
return "dataResult";
}
}
服務端的配置文件（struts.xml）
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
"http://struts.apache.org/dtds/struts-2.3.dtd">
<struts>
<package name="myPackage" extends="struts-default">
<action name="studentAction*" class="com.zking.action.StudentAction" method="{1}">
<result name="dataResult">/dataResult.jsp</result>
</action>
</package>
</struts>
服務端的運行結果
Android （布局文件 activity_main.xml）
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/activity_main" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" android:orientation="vertical" tools:context="com.example.g150825_android29_parsexml.MainActivity"> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="獲取XML" android:onClick="getXML" /> <ListView android:layout_width="match_parent" android:layout_height="wrap_content" android:id="@+id/lv_main_list" ></ListView> </LinearLayout>
Android（Java代碼 MainActivity）
package com.example.g150825_android29_parsexml;
import android.app.ProgressDialog;
import android.os.AsyncTask;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.util.Xml;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;
import org.xmlpull.v1.XmlPullParser;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends AppCompatActivity {
List<Student> studentList=new ArrayList<>();
private ListView lv_main_list;
private MyAdater myAdater;
private ProgressDialog progressDialog;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//實例化進度條對話框
progressDialog = new ProgressDialog(this);
progressDialog.setMessage("正在拼命加載中.....");
lv_main_list = (ListView) findViewById(R.id.lv_main_list);
//實例化適配器
//設置適配器
myAdater = new MyAdater();
lv_main_list.setAdapter(myAdater);
}
class MyAdater extends BaseAdapter{
@Override
public int getCount() {
return studentList.size();
}
@Override
public Object getItem(int i) {
return studentList.get(i);
}
@Override
public long getItemId(int i) {
return i;
}
@Override
public View getView(int i, View view, ViewGroup viewGroup) {
LinearLayout linearLayout=new LinearLayout(MainActivity.this);
linearLayout.setOrientation(LinearLayout.HORIZONTAL);
TextView textViewName=new TextView(MainActivity.this);
textViewName.setText(studentList.get(i).getName());
TextView textViewSex=new TextView(MainActivity.this);
textViewSex.setText(studentList.get(i).getSex());
linearLayout.addView(textViewName);
linearLayout.addView(textViewSex);
return linearLayout;
}
}
public void getXML(View view){
new MyTask().execute();
}
class MyTask extends AsyncTask{
private Student student;
@Override
protected void onPreExecute() {
super.onPreExecute();
progressDialog.show();
}
@Override
protected Object doInBackground(Object[] objects) {
//01.確定網絡數據
String path="http://192.168.43.152:8080/G150825_S2SH/studentActiongetXML.action";
try {
//02.實例化URL
URL url=new URL(path);
//03.獲取連接對象
HttpURLConnection httpURLConnection= (HttpURLConnection) url.openConnection();
//04.設置請求方式
httpURLConnection.setRequestMethod("GET");
//05.設置請求連接超時的時間(優化)
httpURLConnection.setConnectTimeout(5000);
//06.獲取響應碼（結果碼）
int code=httpURLConnection.getResponseCode();
if (code==200){
//07.獲取服務器返回過來的數據
InputStream is=httpURLConnection.getInputStream();
//測試（打?。? //緩沖字符流
// BufferedReader br=new BufferedReader(new InputStreamReader(is));
// String str=null;
// while ((str=br.readLine())!=null){
// Log.i("test",str);
// }
//解析XML（PULL）
XmlPullParser xmlPullParser=Xml.newPullParser();
xmlPullParser.setInput(is,"UTF-8");
int type=xmlPullParser.getEventType();
while (type!=XmlPullParser.END_DOCUMENT){
switch (type){
case XmlPullParser.START_TAG:
//獲取開始標簽
String startTagName=xmlPullParser.getName();
if ("student".equals(startTagName)){
student = new Student();
//獲取name屬性值
String name=xmlPullParser.getAttributeValue(0);
student.setName(name);
}else if("sex".equals(startTagName)){
//獲取sex的文本值
String sex=xmlPullParser.nextText();
student.setSex(sex);
}
break;
case XmlPullParser.END_TAG:
//獲取到結束標簽的名字
String endTagName=xmlPullParser.getName();
if("student".equals(endTagName)){
studentList.add(student);
}
break;
}
type=xmlPullParser.next();
}
}
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(Object o) {
super.onPostExecute(o);
//通知適配器發生改變
myAdater.notifyDataSetChanged();
progressDialog.cancel();
}
}
}
Android （實體類 Student）
package com.example.g150825_android29_parsexml;
public class Student {
private String name;
private String sex;
public Student() {
super();
// TODO Auto-generated constructor stub
}
public Student(String name, String sex) {
super();
this.name = name;
this.sex = sex;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
}
在清單文件中添加權限即可（AndroidManifest.xml）
<!--添加網絡權限--> <uses-permission android:name="android.permission.INTERNET"></uses-permission>
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