我要评论android解析xml展示到listview运行后的效果图如下：
服务端的请求页面
<%@ 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" >获取xml数据</a><br/> </body> </html>
服务端返回结果的页面
<?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>
服务端的java代码
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 {
//查询数据库，获取数据
list<student> students=new arraylist<>();
for (int i = 1; i <=20; i++) {
student student=new student("小霜"+i, "女");
students.add(student);
}
//将对象集合保存到请求域中
servletactioncontext.getrequest().setattribute("students", students);
return "dataresult";
}
}
服务端的配置文件（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>
服务端的运行结果
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="获取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代码 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);
//实例化进度条对话框
progressdialog = new progressdialog(this);
progressdialog.setmessage("正在拼命加载中.....");
lv_main_list = (listview) findviewbyid(r.id.lv_main_list);
//实例化适配器
//设置适配器
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.确定网络数据
string path="http://192.168.43.152:8080/g150825_s2sh/studentactiongetxml.action";
try {
//02.实例化url
url url=new url(path);
//03.获取连接对象
httpurlconnection httpurlconnection= (httpurlconnection) url.openconnection();
//04.设置请求方式
httpurlconnection.setrequestmethod("get");
//05.设置请求连接超时的时间(优化)
httpurlconnection.setconnecttimeout(5000);
//06.获取响应码（结果码）
int code=httpurlconnection.getresponsecode();
if (code==200){
//07.获取服务器返回过来的数据
inputstream is=httpurlconnection.getinputstream();
//测试（打印）
//缓冲字符流
// 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:
//获取开始标签
string starttagname=xmlpullparser.getname();
if ("student".equals(starttagname)){
student = new student();
//获取name属性值
string name=xmlpullparser.getattributevalue(0);
student.setname(name);
}else if("sex".equals(starttagname)){
//获取sex的文本值
string sex=xmlpullparser.nexttext();
student.setsex(sex);
}
break;
case xmlpullparser.end_tag:
//获取到结束标签的名字
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);
//通知适配器发生改变
myadater.notifydatasetchanged();
progressdialog.cancel();
}
}
}
android （实体类 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;
}
}
在清单文件中添加权限即可（androidmanifest.xml）
<!--添加网络权限--> <uses-permission android:name="android.permission.internet"></uses-permission>
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持移动技术网。
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