您的位置：首页 > 移动开发 > Android开发

android访问php webservice简单一例

2013-02-20 22:33 447 查看
博客分类：
Android jsonhttpclientandroid 

  如果是PHP做的服务端,要用android去访问,如何办?当然可以用REST,但也可以用点

笨的方法,比如PHP的服务端可以用JSON和XML提供返回的数据,而android端则可以用

APACHE的httpclient去访问.

  下面是一个例子,假设数据表中users表有如下字段(mysql):

idusers,UserName,FullName,加点数据.然后在服务端PHP,建立一个

webservice1.php,作用是直接返回服务端数据库的数据,如下:

Java代码


 




<?php    
if(isset($_GET['user']) && intval($_GET['user'])) {   
  
  
     $format = strtolower($_GET['format']) == 'json' ? 'json' : 'xml'; //xml is the default
  
  $user_id = intval($_GET['user']); //no default
  
  
  /* 连接数据库*/  
  $link = mysql_connect('localhost','root','xxxxx') or die('Cannot connect to the DB');
  
  mysql_select_db('jsonandroid',$link) or die('Cannot select the DB');   
  
     $query = "SELECT * FROM `users`;";   
  $result = mysql_query($query,$link) or die('Errant query:  '.$query);   
  
    $posts = array();   
  if(mysql_num_rows($result)) {   
    while($post = mysql_fetch_assoc($result)) {   
      $posts[] = array('post'=>$post);   
    }   
  }   
  
  /* json格式*/  
  if($format == 'json') {   
    header('Content-type: application/json');   
    echo json_encode(array('posts'=>$posts));   
  }   
  else {   
    header('Content-type: text/xml');   
    echo '<posts>';   
    foreach($posts as $index => $post) {   
      if(is_array($post)) {   
        foreach($post as $key => $value) {   
          echo '<',$key,'>';   
          if(is_array($value)) {   
            foreach($value as $tag => $val) {   
              echo '<',$tag,'>',htmlentities($val),'</',$tag,'>';   
            }   
          }   
          echo '</',$key,'>';   
        }   
      }   
    }   
    echo '</posts>';   
  }   
  
  }   
 ?>   

<?php
if(isset($_GET['user']) && intval($_GET['user'])) {

$format = strtolower($_GET['format']) == 'json' ? 'json' : 'xml'; //xml is the default
$user_id = intval($_GET['user']); //no default

/* 连接数据库*/
$link = mysql_connect('localhost','root','xxxxx') or die('Cannot connect to the DB');
mysql_select_db('jsonandroid',$link) or die('Cannot select the DB');

$query = "SELECT * FROM `users`;";
$result = mysql_query($query,$link) or die('Errant query:  '.$query);

$posts = array();
if(mysql_num_rows($result)) {
while($post = mysql_fetch_assoc($result)) {
$posts[] = array('post'=>$post);
}
}

/* json格式*/
if($format == 'json') {
header('Content-type: application/json');
echo json_encode(array('posts'=>$posts));
}
else {
header('Content-type: text/xml');
echo '<posts>';
foreach($posts as $index => $post) {
if(is_array($post)) {
foreach($post as $key => $value) {
echo '<',$key,'>';
if(is_array($value)) {
foreach($value as $tag => $val) {
echo '<',$tag,'>',htmlentities($val),'</',$tag,'>';
}
}
echo '</',$key,'>';
}
}
}
echo '</posts>';
}

}
?>


   则可以把数据表输出为JSON或者XML格式了.客户端的ANDROID调用:

Java代码


 




  
try {   
               
            HttpParams httpParams = new BasicHttpParams();   
            HttpConnectionParams.setConnectionTimeout(httpParams,   
                    TIMEOUT_MILLISEC);   
            HttpConnectionParams.setSoTimeout(httpParams, TIMEOUT_MILLISEC);   
               
            HttpParams p = new BasicHttpParams();   
               
            p.setParameter("user", "1");   
  
               
            HttpClient httpclient = new DefaultHttpClient(p);   
            String url = "http://10.0.2.2:8082/myphp/phpWebservice/webservice1.php?user=1&format=json";   
            HttpPost httppost = new HttpPost(url);   
  
               
            try {   
                Log.i(getClass().getSimpleName(), "send  task - start");   
                   
                List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(   
                        2);   
                nameValuePairs.add(new BasicNameValuePair("user", "1"));   
                httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));   
                ResponseHandler<String> responseHandler = new BasicResponseHandler();   
                String responseBody = httpclient.execute(httppost,   
                        responseHandler);   
                // 解析JSON返回的                JSONObject json = new JSONObject(responseBody);
  
                JSONArray jArray = json.getJSONArray("posts");   
                ArrayList<HashMap<String, String>> mylist = new ArrayList<HashMap<String, String>>();   
  
                for (int i = 0; i < jArray.length(); i++) {   
                    HashMap<String, String> map = new HashMap<String, String>();   
                    JSONObject e = jArray.getJSONObject(i);   
                    String s = e.getString("post");   
                    JSONObject jObject = new JSONObject(s);   
  
                    map.put("idusers", jObject.getString("idusers"));   
                    map.put("UserName", jObject.getString("UserName"));   
                    map.put("FullName", jObject.getString("FullName"));   
  
                    mylist.add(map);   
                }   
                Toast.makeText(this, responseBody, Toast.LENGTH_LONG).show();  

try {

HttpParams httpParams = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(httpParams,
TIMEOUT_MILLISEC);
HttpConnectionParams.setSoTimeout(httpParams, TIMEOUT_MILLISEC);

HttpParams p = new BasicHttpParams();

p.setParameter("user", "1");

HttpClient httpclient = new DefaultHttpClient(p);
String url = "http://10.0.2.2:8082/myphp/phpWebservice/webservice1.php?user=1&format=json";
HttpPost httppost = new HttpPost(url);

try {
Log.i(getClass().getSimpleName(), "send  task - start");

List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(
2);
nameValuePairs.add(new BasicNameValuePair("user", "1"));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
ResponseHandler<String> responseHandler = new BasicResponseHandler();
String responseBody = httpclient.execute(httppost,
responseHandler);
// 解析JSON返回的				JSONObject json = new JSONObject(responseBody);
JSONArray jArray = json.getJSONArray("posts");
ArrayList<HashMap<String, String>> mylist = new ArrayList<HashMap<String, String>>();

for (int i = 0; i < jArray.length(); i++) {
HashMap<String, String> map = new HashMap<String, String>();
JSONObject e = jArray.getJSONObject(i);
String s = e.getString("post");
JSONObject jObject = new JSONObject(s);

map.put("idusers", jObject.getString("idusers"));
map.put("UserName", jObject.getString("UserName"));
map.put("FullName", jObject.getString("FullName"));

mylist.add(map);
}
Toast.makeText(this, responseBody, Toast.LENGTH_LONG).show();


  再搞个webservice2.php,该文件用来把客户端传送过去的JSON数据保存

Java代码


 




  
<?php    
  
$json = file_get_contents('php://input');   
$obj = json_decode($json);   
  
//echo $json;   
  
  
//保存数据库   
$con = mysql_connect('localhost','root','XXX') or die('Cannot connect to the DB');
  
mysql_select_db('jsonandroid',$con);   
  
  mysql_query("INSERT INTO `users` (UserName, FullName)   
VALUES ('".$obj->{'UserName'}."', '".$obj->{'FullName'}."')");   
  
mysql_close($con);   
  $posts = array(1);   
    header('Content-type: application/json');   
    echo json_encode(array('posts'=>$posts));   
  
?>  

<?php

$json = file_get_contents('php://input');
$obj = json_decode($json);

//echo $json;

//保存数据库
$con = mysql_connect('localhost','root','XXX') or die('Cannot connect to the DB');
mysql_select_db('jsonandroid',$con);

mysql_query("INSERT INTO `users` (UserName, FullName)
VALUES ('".$obj->{'UserName'}."', '".$obj->{'FullName'}."')");

mysql_close($con);
$posts = array(1);
header('Content-type: application/json');
echo json_encode(array('posts'=>$posts));

?>


  而ANDROID端的,可以构造JSON,发送到webservice2.php

Java代码


 




try {   
            JSONObject json = new JSONObject();   
            json.put("UserName", "test2");   
            json.put("FullName", "1234567");   
            HttpParams httpParams = new BasicHttpParams();   
            HttpConnectionParams.setConnectionTimeout(httpParams,   
                    TIMEOUT_MILLISEC);   
            HttpConnectionParams.setSoTimeout(httpParams, TIMEOUT_MILLISEC);   
            HttpClient client = new DefaultHttpClient(httpParams);   
                                    String url = "http://10.0.2.2:8082//myphp/phpWebservice/webservice2.php";   
  
            HttpPost request = new HttpPost(url);   
            request.setEntity(new ByteArrayEntity(json.toString().getBytes(   
                    "UTF8")));   
            request.setHeader("json", json.toString());   
            HttpResponse response = client.execute(request);   
            HttpEntity entity = response.getEntity();   
               
            if (entity != null) {   
                InputStream instream = entity.getContent();   
  
                String result = RestClient.convertStreamToString(instream);   
                Log.i("Read from server", result);   
                Toast.makeText(this,  result,   
                        Toast.LENGTH_LONG).show();   
            }  

try {
JSONObject json = new JSONObject();
json.put("UserName", "test2");
json.put("FullName", "1234567");
HttpParams httpParams = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(httpParams,
TIMEOUT_MILLISEC);
HttpConnectionParams.setSoTimeout(httpParams, TIMEOUT_MILLISEC);
HttpClient client = new DefaultHttpClient(httpParams);
String url = "http://10.0.2.2:8082//myphp/phpWebservice/webservice2.php";

HttpPost request = new HttpPost(url);
request.setEntity(new ByteArrayEntity(json.toString().getBytes(
"UTF8")));
request.setHeader("json", json.toString());
HttpResponse response = client.execute(request);
HttpEntity entity = response.getEntity();

if (entity != null) {
InputStream instream = entity.getContent();

String result = RestClient.convertStreamToString(instream);
Log.i("Read from server", result);
Toast.makeText(this,  result,
Toast.LENGTH_LONG).show();
}


   这样,就可以把ANDROID发送的数据保存到服务端了
内容来自用户分享和网络整理，不保证内容的准确性，如有侵权内容，可联系管理员处理 点击这里给我发消息
标签： 
相关文章推荐
新的分享
章节导航