Php 从android应用程序将数据插入MySQL
我打算为android开发一个web应用程序,但我第一次尝试这个实验,所以我无法完成我的任务,因为我是新手。它给了我一个类似字符串无法转换为JSONObject的错误。请帮帮我,我已经尽力了,但还没有找到任何解决办法。这是我的密码Php 从android应用程序将数据插入MySQL,php,android,mysql,json,jsonobject,Php,Android,Mysql,Json,Jsonobject,我打算为android开发一个web应用程序,但我第一次尝试这个实验,所以我无法完成我的任务,因为我是新手。它给了我一个类似字符串无法转换为JSONObject的错误。请帮帮我,我已经尽力了,但还没有找到任何解决办法。这是我的密码 public class signup extends Activity implements OnClickListener { Button signup,cancel; EditText e1,e2,e3,e4; String name; String ema
public class signup extends Activity implements OnClickListener {
Button signup,cancel;
EditText e1,e2,e3,e4;
String name;
String email;
String mobile;
String passwd;
InputStream is=null;
String result=null;
String line=null;
int code;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.signupfrag);
if (android.os.Build.VERSION.SDK_INT > 9) {
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
}
signup=(Button)findViewById(R.id.reg);
cancel=(Button)findViewById(R.id.regcancel);
e1=(EditText)findViewById(R.id.name);
e2=(EditText)findViewById(R.id.uid);
e3=(EditText)findViewById(R.id.contact);
e4=(EditText)findViewById(R.id.passwd);
signup.setOnClickListener(this);
cancel.setOnClickListener(this);
}
public void onClick(View v) {
// TODO Auto-generated method stub
if(v.getId()==R.id.reg)
{
name = e1.getText().toString();
email = e2.getText().toString();
mobile = e3.getText().toString();
passwd = e4.getText().toString();
insert();
Intent i=new Intent(signup.this,MainActivity.class);
startActivity(i);
}
if(v.getId()==R.id.regcancel)
{
e1.setText(null);
e2.setText(null);
e3.setText(null);
e4.setText(null);
}
}
private void insert() {
// TODO Auto-generated method stub
ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("fname",name));
nameValuePairs.add(new BasicNameValuePair("email",email));
nameValuePairs.add(new BasicNameValuePair("mobile",mobile));
nameValuePairs.add(new BasicNameValuePair("passwd",passwd));
try
{
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://192.168.43.73/htdocs/insert1.php");//10.0.2.2
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
is = entity.getContent();
Log.e("pass 1", "connection success ");
}
catch(Exception e)
{
Log.e("Fail 1", e.toString());
Toast.makeText(getApplicationContext(), "Invalid IP Address",
Toast.LENGTH_LONG).show();
}
try
{
BufferedReader reader = new BufferedReader
(new InputStreamReader(is,"iso-8859-1"),8);
StringBuilder sb = new StringBuilder();
while ((line = reader.readLine()) != null)
{
sb.append(line + "\n");
}
is.close();
result = sb.toString();
Log.e("pass 2", "connection success ");
}
catch(Exception e)
{
Log.e("Fail 2", e.toString());
}
try
{
JSONObject json_data = new JSONObject(result);
code=(json_data.getInt("code"));
if(code==1)
{
Toast.makeText(getBaseContext(), "Inserted Successfully",
Toast.LENGTH_SHORT).show();
}
else
{
Toast.makeText(getBaseContext(), "Sorry, Try Again",
Toast.LENGTH_LONG).show();
}
}
catch(Exception e)
{
Log.e("log_tag", "Error parsing data "+e.toString());
Log.e("log_tag", "Failed data was:\n" + result);
Log.e("Fail 3", e.toString());
}
}
}
公共类注册扩展活动实现OnClickListener{
按钮注册,取消;
编辑文本e1、e2、e3、e4;
字符串名;
字符串电子邮件;
字符串移动;
字符串密码;
InputStream=null;
字符串结果=null;
字符串行=null;
int代码;
@凌驾
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.signupfrag);
如果(android.os.Build.VERSION.SDK_INT>9){
StrictMode.ThreadPolicy policy=新建StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(策略);
}
注册=(按钮)findViewById(R.id.reg);
cancel=(按钮)findviewbyd(R.id.regcancel);
e1=(EditText)findViewById(R.id.name);
e2=(EditText)findViewById(R.id.uid);
e3=(EditText)findViewById(R.id.contact);
e4=(EditText)findViewById(R.id.passwd);
signup.setOnClickListener(this);
cancel.setOnClickListener(此);
}
公共void onClick(视图v){
//TODO自动生成的方法存根
如果(v.getId()==R.id.reg)
{
name=e1.getText().toString();
email=e2.getText().toString();
mobile=e3.getText().toString();
passwd=e4.getText().toString();
插入();
意向i=新意向(signup.this,MainActivity.class);
星触觉(i);
}
if(v.getId()==R.id.regcancel)
{
e1.setText(空);
e2.setText(空);
e3.setText(空);
e4.setText(空);
}
}
专用空白插入(){
//TODO自动生成的方法存根
ArrayList nameValuePairs=新的ArrayList();
添加(新的BasicNameValuePair(“fname”,name));
添加(新的BasicNameValuePair(“email”,email));
添加(新的BasicNameValuePair(“mobile”,mobile));
添加(新的BasicNameValuePair(“passwd”,passwd));
尝试
{
HttpClient HttpClient=新的DefaultHttpClient();
HttpPost HttpPost=新的HttpPost(“http://192.168.43.73/htdocs/insert1.php");//10.0.2.2
setEntity(新的UrlEncodedFormEntity(nameValuePairs));
HttpResponse response=httpclient.execute(httppost);
HttpEntity=response.getEntity();
is=entity.getContent();
Log.e(“通过1”,“连接成功”);
}
捕获(例外e)
{
Log.e(“Fail 1”,e.toString());
Toast.makeText(getApplicationContext(),“无效IP地址”,
Toast.LENGTH_LONG).show();
}
尝试
{
BufferedReader reader=新的BufferedReader
(新的InputStreamReader(is,“iso-8859-1”),8);
StringBuilder sb=新的StringBuilder();
而((line=reader.readLine())!=null)
{
sb.追加(第+行“\n”);
}
is.close();
结果=sb.toString();
Log.e(“通过2”,“连接成功”);
}
捕获(例外e)
{
Log.e(“Fail 2”,e.toString());
}
尝试
{
JSONObject json_data=新的JSONObject(结果);
code=(json_data.getInt(“code”);
如果(代码==1)
{
Toast.makeText(getBaseContext(),“已成功插入”,
吐司。长度(短)。show();
}
其他的
{
Toast.makeText(getBaseContext(),“抱歉,再试一次”,
Toast.LENGTH_LONG).show();
}
}
捕获(例外e)
{
Log.e(“Log_标记”,“错误解析数据”+e.toString());
Log.e(“日志标签”,“失败数据为:\n”+结果);
Log.e(“Fail 3”,e.toString());
}
}
}
这是我的php代码
<?php
$host='127.0.0.1';
$uname='root';
$pwd='password';
$db="resumemaker";
$con = mysql_connect("localhost", "root");
mysql_select_db($db,$con) or die("db selection failed");
$fname=$_REQUEST['fname'];
$email=$_REQUEST['email'];
$mobile=$_REQUEST['mobile'];
$passwd=$_REQUEST['passwd'];
$flag['code']=0;
if($r=mysql_query("insert into sample values('$fname','$email','$mobile','$passwd') ",$con))
{
$flag['code']=1;
//echo"hi";
}
print(json_encode($flag));
mysql_close($con);
?>
您没有将其编码为json。此示例将帮助您实现其100%的工作代码
Index.php
<?php
header("Content-Type:application/json");
include("function.php");
$fname=$_REQUEST['fname'];
$email=$_REQUEST['email'];
$mobile=$_REQUEST['mobile'];
$passwd=$_REQUEST['passwd'];
$record = fetchrecord($fname,$email,$mobile,$passwd);
if(empty($record))
{
deliverresponse(200,"Record not found",NULL,0);
}
else
{
deliverresponse(200,"Record Displayed",$record,1);
}
function deliverresponse($status,$status_message,$data,$success)
{
header("HTTP/1.1 $status $status_message");
$response['status'] = $status;
$response['status_message'] = $status_message;
$response['code'] = $code;
$response['data'] = $data;
$jsonresponse = json_encode($response);
echo $jsonresponse;
}
?>
是什么导致了PHP或…(c#?)的错误?您的PHP当前对SQL注入开放。它在logcat日志07-06 00:29:46.022:E/Fail 3(686):org.json.JSONException:值中显示错误,该值看起来不像PHP错误。这是java的第一段代码吗?可能要将该标记添加到此问题。此外,您还应该解决PHP代码中的SQL注入问题,并切换到mysqli
或pdo
驱动程序。我认为这是一个错误,请尝试{JSONObject json_data=new JSONObject(result);code=(json_data.getInt(“code”);if(code==1){Toast.makeText(getBaseContext(),“Inserted Successfully”,Toast.LENGTH_SHORT.show();}else{Toast.makeText(getBaseContext(),“对不起,再试一次”,Toast.LENGTH_LONG.show();}}catch(异常e){Log.e(“Fail 3”,e.toString());}
<?php
$conn = mysql_connect("localhost", "root", "");
mysql_select_db('your db name', $conn);
function fetchrecord($fname,$email,$mobile,$passwd)
{
$qur = mysql_query("INSERT INTO `sample` (fname,email,mobile,passwd) VALUES (NULL, '$fname','$email','$mobile','$passwd')") or die ("Query Failed");
if($qur)
{
$msg = "Record Inserted";
$user[] = array($msg);
}
else
{
$msg = "Record not Inserted";
$user[] = array($msg);
}
return $user;
}
public class SignupProcess extends AsyncTask<String, String, String>
{
JSONObject json = new JSONObject();
private static final String TAG_SUCCESS = "code";
@Override
protected void onPreExecute() {
pDialog = new ProgressDialog(signup.this);
pDialog.setMessage("Login..");
pDialog.setIndeterminate(false);
pDialog.setCancelable(true);
pDialog.show();
super.onPreExecute();
}
@Override
protected String doInBackground(String... args) {
List<NameValuePair> pair = new ArrayList<>();
pair.add(new BasicNameValuePair("name", name));
pair.add(new BasicNameValuePair("email", email));
pair.add(new BasicNameValuePair("password", mobile));
pair.add(new BasicNameValuePair("status",String,psswd);
json = JSONParser.makeHttpRequest("http://xxxxxxx","GET", pair);
Log.d("Create Response", json.toString());
try {
int success = json.getInt(TAG_SUCCESS);
getstatus = success;
if (success == 1) {
Log.d("success!", json.toString());
}
else if (success==0){
return json.getString(TAG_SUCCESS);
}
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
public class JSONParser {
static InputStream is = null;
static JSONObject jObj = null;
static String json = "";
public static String Result=null;
public JSONParser()
{
}
public static JSONObject makeHttpRequest(String url,String method, List<NameValuePair> pair) {
try {
// check for request method
if(method.equals("POST")){
// request method is POST
// defaultHttpClient
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
httpPost.setEntity(new UrlEncodedFormEntity(pair));
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
}else if(method.equals("GET")){
// request method is GET
DefaultHttpClient httpClient = new DefaultHttpClient();
String paramString = URLEncodedUtils.format(pair, "utf-8");
url += "?" + paramString;
HttpGet httpGet = new HttpGet(url);
HttpResponse httpResponse = httpClient.execute(httpGet);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(
is, HTTP.UTF_8), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
is.close();
json = sb.toString();
Result = json;
} catch (Exception e) {
Log.e("Buffer Error", "Error converting result " + e.toString());
}
// try parse the string to a JSON object
try {
jObj = new JSONObject(json);
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.toString());
}
return jObj;
}
}
new SignupProcess().execute();