您好,登錄后才能下訂單哦!
小編給大家分享一下Android App端與PHP Web端的簡單數據交互的示例分析,相信大部分人都還不怎么了解,因此分享這篇文章給大家參考一下,希望大家閱讀完這篇文章后大有收獲,下面讓我們一起去了解一下吧!
實現流程
流程說明
Andorid Server端對MySql數據庫進行簡單的查詢操作,并將查詢數據結果轉換為Json格式提供給Andorid利用OKhttp讀取再解析Json展示到APP上;同時Andorid端利用OKhttp提交給Andorid Server端,由Server端對MySql數據庫對提交數據的添加。
Apache Server端通過解析PHP源代碼,對MySql數據庫的增刪查改顯示在WebSite。
具體實現
Andorid Server
獲取數據
get_all_found_items.php
<?php header('Content-Type:text/html;charset=utf-8');/*設置php編碼為utf-8*/ /* * Following code will list all the items */ // array for JSON response $response = array(); // include db connect class require_once __DIR__ . '/db_connect.php'; // connecting to db $db = new DB_CONNECT(); // get all items from items table $result = mysql_query("SELECT *FROM items WHERE type='1'") or die(mysql_error()); // check for empty result if (mysql_num_rows($result) > 0) { // looping through all results // items node $response["items"] = array(); while ($row = mysql_fetch_array($result)) { // temp user array $items = array(); $items["what"] = $row["what"]; $items["when"] = $row["when"]; $items["where"] = $row["where"]; $items["detail"] = $row["detail"]; $items["posttime"] = $row["posttime"]; $resultcontcat = mysql_query("SELECT *FROM guests") or die(mysql_error()); while ($row1 = mysql_fetch_array($resultcontcat)) { if ($row1["id"] == $row["gid"]){ $items["contact"] = $row1["contact"]; } } // push single items into final response array array_push($response["items"], $items); } // success $response["success"] = 1; // echoing JSON response echo json_encode($response,JSON_UNESCAPED_UNICODE); } else { // no items found $response["success"] = 0; $response["message"] = "No items found"; // echo JSON echo json_encode($response,JSON_UNESCAPED_UNICODE); } ?>
如以上PHP代碼可知通過require_once()函數包含db_connect.php文件,執行數據庫配置文件。定義數組$response接收查詢的數據結果,通過判斷不同的情況賦值$response[“success”],并返回到Web頁面顯示
PHP文件執行結果
JSON
{ "items": [ { "what": "手表", "when": "2017-10-21 00:00:00", "where": "北區宿舍樓#504", "detail": "白色的手表,XX品牌", "posttime": "2017-10-21 13:03:09", "contact": "138123456" }, { "what": "手機", "when": "2017-10-04 00:00:00", "where": "北區商店#111", "detail": "iphone6s,土豪金", "posttime": "2017-10-21 13:03:46", "contact": "137123456" }, { "what": "電腦", "when": "2017-10-21 14:39:54", "where": "圖書館#203", "detail": "聯想品牌筆記本", "posttime": "2017-10-21 17:08:14", "contact": "5670001" }, { "what": "細說PHP", "when": "2017-09-21 13:03:46", "where": "南館#403", "detail": "黑色封面,第二版《細說PHP》", "posttime": "2017-10-21 17:36:53", "contact": "63513641" } ], "success": 1 }
提交數據
create_found_items.php
<?php header('Content-Type:text/html;charset=utf-8');/*設置php編碼為utf-8*/ /* * Following code will create a new product row * All product details are read from HTTP GET Request */ // array for JSON response $response = array(); // check for required fields if (isset($_GET['what']) && isset($_GET['when']) && isset($_GET['where']) && isset($_GET['detail'])&& isset($_GET['contact'])) { $what = $_GET['what']; $when = $_GET['when']; $where = $_GET['where']; $detail = $_GET['detail']; $contact = $_GET['contact']; // include db connect class require_once __DIR__ . '/db_connect.php'; // connecting to db $db = new DB_CONNECT(); // mysql inserting a new row $result2 = mysql_query("INSERT INTO guests(contact) VALUES('$contact')"); $gidresult = mysql_query("SELECT id FROM `guests` WHERE contact='$contact'"); while ($row = mysql_fetch_array($gidresult)) { $gid=$row['id']; } $result1 = mysql_query("INSERT INTO items(`what`, `when`, `where`, `type` ,`gid`, `detail`) VALUES('$what', '$when', '$where', '1', '$gid', '$detail')"); // check if row inserted or not if ($result1 && $result2) { // successfully inserted into database $response["success"] = 1; $response["message"] = "Items successfully created."; // echoing JSON response echo json_encode($response,JSON_UNESCAPED_UNICODE); } else { // failed to insert row $response["success"] = 0; $response["message"] = "Oops! An error occurred."; // echoing JSON response echo json_encode($response,JSON_UNESCAPED_UNICODE); } } else { // required field is missing $response["success"] = 0; $response["message"] = "Required field(s) is missing"; // echoing JSON response echo json_encode($response,JSON_UNESCAPED_UNICODE); } ?>
判斷GET請求的參數是否都存在,把獲取的GET請求參數作為數據INSERT TO MySQL數據庫。判斷INSERT執行過程賦值$response[“success”]對應相應的$response[“message”],顯示在Web頁面。
執行結果
Andorid
獲取數據
核心代碼 queryLosts()函數
private void queryLosts() { losts.clear(); new Thread(new Runnable() { @Override public void run() { // TODO Auto-generated method stub OkHttpClient okHttpClient = new OkHttpClient(); String url = "http://webSite/androidapi/get_all_lost_items.php"; Request request = new Request.Builder() .url(url) .build(); Call call = okHttpClient.newCall(request); try { Response response = call.execute(); String res = response.body().string(); if (res != null && !res.trim().equals("")){ JSONObject jsonObject = new JSONObject(res); if (jsonObject.getInt("success") == 1){ JSONArray jsonArray = jsonObject.getJSONArray("items"); for (int i = jsonArray.length() - 1;i >= 0;i--){ JSONObject item = jsonArray.getJSONObject(i); String what = null; try { what = item.getString("what"); }catch (Exception e){ } String when = null; try{ when = item.getString("when"); }catch (Exception e){ } String where = null; try{ where = item.getString("where"); }catch (Exception e){ } String detail = null; try { detail = item.getString("detail"); }catch (Exception e){ } String contact = null; try { contact = item.getString("contact"); }catch (Exception e){ } Lost lost = new Lost(); lost.setTitle(what); String des = "地點:" + (where == null?"":where) +" "+"時間:" + (when == null?"":when)+"\r" + " "+"描述:" + (detail == null?"":detail); lost.setDescribe(des); lost.setPhone(contact == null?"":contact); losts.add(lost); } } } } catch (Exception e) { e.printStackTrace(); showErrorView(0); } if (losts == null || losts.size() == 0) { handler.sendEmptyMessage(1); return; } if (losts.size() > 0){ handler.sendEmptyMessage(2); } } }).start();
利用Android網絡框架OKhttp,OKhttp一個處理網絡請求的開源項目,是安卓端最火熱的輕量級框架.請求接口url地址,獲取Json數據利用JSONObject對Json數據進行解析。
提交數據
核心代碼 addLost()函數
public Handler handler = new Handler(){ public void handleMessage(android.os.Message msg) { switch(msg.what){ case 1: Toast.makeText(this,"提交成功",Toast.LENGTH_LONG).show(); break; case 2: Toast.makeText(this,"提交失敗",Toast.LENGTH_LONG).show(); break; } } }; private void addLost(){ OkHttpClient okHttpClient = new OkHttpClient(); String url ="http://website/androidapi/create_lost_items.php?what="+title+"&when="+time+"&where="+place+"&detail="+describe+"&contact="+photo+""; Request request = new Request.Builder() .url(url) .build(); try{ Response response = okHttpClient.newCall(request).execute(); res = response.body().string(); handler.sendEmptyMessage(1); }catch (Exception e) { e.printStackTrace(); handler.sendEmptyMessage(2); } }
同樣利用Okhttp,GET方式提交參數,try-catch獲取異常,通過返回值給出一定的提交結果提示。
代碼測試
數據同步
Web端
Andorid端
數據提交
提交結果
以上是“Android App端與PHP Web端的簡單數據交互的示例分析”這篇文章的所有內容,感謝各位的閱讀!相信大家都有了一定的了解,希望分享的內容對大家有所幫助,如果還想學習更多知識,歡迎關注億速云行業資訊頻道!
免責聲明:本站發布的內容(圖片、視頻和文字)以原創、轉載和分享為主,文章觀點不代表本網站立場,如果涉及侵權請聯系站長郵箱:is@yisu.com進行舉報,并提供相關證據,一經查實,將立刻刪除涉嫌侵權內容。