做android项目，离不开去服务器取数据，典型的就是android访问php调取json数据。网上类似的例子一大堆，而且居然代码都一样，我要吐槽一下，你们发的代码不全，这不是坑人吗。
做这个项目，我们要用到apache提供的依赖包（jar包）:①httpclient ②httpcore ③http-mimi ④apache-mime4j
国际惯例：先上demo，下载地址：android访问php调取json数据
我们先熟悉一下 php下的json数据格式
e.g.
$tnnowu = array( 'username' => '灬抹茶灬', 'password' => '666', 'user_id' => 1);echo json_encode($tnnowu);
接着我们编写java代码mainactivity.java
package com.cnwuth.getjson;import android.support.v7.app.appcompatactivity;import android.os.bundle;import android.util.log;import org.apache.http.httpresponse;import org.apache.http.client.httpclient;import org.apache.http.client.methods.httpget;import org.apache.http.impl.client.defaulthttpclient;import org.json.jsonobject;import java.io.bufferedreader;import java.io.inputstreamreader;public class mainactivity extends appcompatactivity{ @override protected void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.activity_main); } private void starturlcheck(string username,string password) { httpclient httpclient = new defaulthttpclient(); stringbuilder stringbuilder = new stringbuilder(); httpget httpget = new httpget(xxx.xxx.php); try { httpresponse httpresponse = httpclient.execute(httpget); bufferedreader bufferedreader = new bufferedreader(new inputstreamreader( httpresponse.getentity().getcontent() )); for (string s = bufferedreader.readline();s!=null;s=bufferedreader.readline()) { stringbuilder.append(s); } jsonobject jsonobject = new jsonobject(stringbuilder.tostring()); string re_username = jsonobject.getstring(username); string re_password = jsonobject.getstring(password); int re_user_id = jsonobject.getint(user_id); settitle(用户id_ + re_user_id); log.v(url response , true= + re_username); log.v(url response , true= + re_password); } catch (exception e) { log.v(url response , false); e.printstacktrace(); } }}
最后，需要网络权限才可以访问数据androidmainifest.xml

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以上就介绍了android访问php调取json数据，包括了方面的内容，希望对php教程有兴趣的朋友有所帮助。