Java 如何将请求从android表单发送到本地主机URL???
我想将android表单数据发送到特定的URL(如login.php页面“这是我的网站的一个页面,将验证DB保存记录中的表单数据”)查看本教程,您就完成了 要做到这一点,实际上需要两个类 1.你单位 2.JSON解析器 这是其中两个的示例代码,您可以根据自己的需要进行修改Java 如何将请求从android表单发送到本地主机URL???,java,Java,我想将android表单数据发送到特定的URL(如login.php页面“这是我的网站的一个页面,将验证DB保存记录中的表单数据”)查看本教程,您就完成了 要做到这一点,实际上需要两个类 1.你单位 2.JSON解析器 这是其中两个的示例代码,您可以根据自己的需要进行修改 public class JSONParser { static InputStream is = null; static JSONObject jObj = null; static Strin
public class JSONParser {
static InputStream is = null;
static JSONObject jObj = null;
static String json = "";
static JSONArray jArr = null;
// constructor
public JSONParser() {
}
// function get json from url
// by making HTTP POST or GET method
public JSONObject makeHttpRequest(String url, String method,
List<NameValuePair> params) {
// Making HTTP request
try {
// check for request method
if(method == "POST"){
// request method is POST
// defaultHttpClient
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
httpPost.setEntity(new UrlEncodedFormEntity(params));
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
}else if(method == "GET"){
// request method is GET
DefaultHttpClient httpClient = new DefaultHttpClient();
String paramString = URLEncodedUtils.format(params, "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, "utf-8"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
is.close();
json = sb.toString();
} catch (Exception e) {
Log.e("Buffer Error", "Error converting result " + e.toString());
}
Log.i("PHP Error", "["+json+"]");
// try parse the string to a JSON object
try {
jObj = new JSONObject(json);
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.getMessage() + json);
}
// return JSON String
return jObj;
}
public JSONArray getAllMessages(String url, String method,
List<NameValuePair> params) {
// Making HTTP request
try {
// check for request method
if(method == "POST"){
// request method is POST
// defaultHttpClient
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
httpPost.setEntity(new UrlEncodedFormEntity(params));
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
}else if(method == "GET"){
// request method is GET
DefaultHttpClient httpClient = new DefaultHttpClient();
String paramString = URLEncodedUtils.format(params, "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, "utf-8"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
is.close();
json = sb.toString();
} catch (Exception e) {
Log.e("Buffer Error", "Error converting result " + e.toString());
}
Log.i("PHP Error", "["+json+"]");
// try parse the string to a JSON object
try {
jArr = new JSONArray(json);
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.getMessage() + json);
}
// return JSON String
return jArr;
}
}
公共类JSONParser{
静态InputStream为空;
静态JSONObject jObj=null;
静态字符串json=“”;
静态JSONArray jArr=null;
//建造师
公共JSONParser(){
}
//函数从url获取json
//通过使用HTTP POST或GET方法
公共JSONObject makeHttpRequest(字符串url、字符串方法、,
列表参数){
//发出HTTP请求
试一试{
//检查请求方法
如果(方法==“POST”){
//请求方法为POST
//defaultHttpClient
DefaultHttpClient httpClient=新的DefaultHttpClient();
HttpPost HttpPost=新的HttpPost(url);
setEntity(新的UrlEncodedFormEntity(参数));
HttpResponse HttpResponse=httpClient.execute(httpPost);
HttpEntity HttpEntity=httpResponse.getEntity();
is=httpEntity.getContent();
}else if(方法==“GET”){
//请求方法是GET
DefaultHttpClient httpClient=新的DefaultHttpClient();
String paramString=URLEncodedUtils.format(params,“utf-8”);
url+=“?”+参数字符串;
HttpGet HttpGet=新的HttpGet(url);
HttpResponse HttpResponse=httpClient.execute(httpGet);
HttpEntity HttpEntity=httpResponse.getEntity();
is=httpEntity.getContent();
}
}捕获(不支持的编码异常e){
e、 printStackTrace();
}捕获(客户端协议例外e){
e、 printStackTrace();
}捕获(IOE异常){
e、 printStackTrace();
}
试一试{
BufferedReader reader=新的BufferedReader(新的InputStreamReader(
为“utf-8”)、8);
StringBuilder sb=新的StringBuilder();
字符串行=null;
而((line=reader.readLine())!=null){
sb.追加(第+行“\n”);
}
is.close();
json=sb.toString();
}捕获(例外e){
Log.e(“缓冲区错误”,“错误转换结果”+e.toString());
}
Log.i(“PHP错误”,“[”+json+“]”);
//尝试将字符串解析为JSON对象
试一试{
jObj=新的JSONObject(json);
}捕获(JSONException e){
Log.e(“JSON解析器”,“错误解析数据”+e.getMessage()+JSON);
}
//返回JSON字符串
返回jObj;
}
公共JSONArray getAllMessages(字符串url、字符串方法、,
列表参数){
//发出HTTP请求
试一试{
//检查请求方法
如果(方法==“POST”){
//请求方法为POST
//defaultHttpClient
DefaultHttpClient httpClient=新的DefaultHttpClient();
HttpPost HttpPost=新的HttpPost(url);
setEntity(新的UrlEncodedFormEntity(参数));
HttpResponse HttpResponse=httpClient.execute(httpPost);
HttpEntity HttpEntity=httpResponse.getEntity();
is=httpEntity.getContent();
}else if(方法==“GET”){
//请求方法是GET
DefaultHttpClient httpClient=新的DefaultHttpClient();
String paramString=URLEncodedUtils.format(params,“utf-8”);
url+=“?”+参数字符串;
HttpGet HttpGet=新的HttpGet(url);
HttpResponse HttpResponse=httpClient.execute(httpGet);
HttpEntity HttpEntity=httpResponse.getEntity();
is=httpEntity.getContent();
}
}捕获(不支持的编码异常e){
e、 printStackTrace();
}捕获(客户端协议例外e){
e、 printStackTrace();
}捕获(IOE异常){
e、 printStackTrace();
}
试一试{
BufferedReader reader=新的BufferedReader(新的InputStreamReader(
为“utf-8”)、8);
StringBuilder sb=新的StringBuilder();
字符串行=null;
而((line=reader.readLine())!=null){
sb.追加(第+行“\n”);
}
is.close();
json=sb.toString();
}捕获(例外e){
Log.e(“缓冲区错误”,“错误转换结果”+e.toString());
}
Log.i(“PHP错误”,“[”+json+“]”);
//尝试将字符串解析为JSON对象
试一试{
jArr=新JSONArray(json);
}捕获(JSONException e){
Log.e(“JSON解析器”,“错误解析数据”+e.getMessage()+JSON);
}
//返回JSON字符串
返回jArr;
}
}
活动
public class Home extends Activity {
private ProgressDialog pDialog;
JSONParser jsonParser = new JSONParser();
String message;
private static String url_addmessage = "http://www.yourdomain.com/addmessage.php";
private static final String TAG_SUCCESS = "success";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
final EditText et = (EditText)findViewById(R.id.editText1);
Button b1 = (Button)findViewById(R.id.button1);
Button b2 = (Button)findViewById(R.id.button2);
b1.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
try{
message = et.getText().toString();
Log.i("message to be posted", message);
new RegisterMe().execute();
}catch(Exception e){
Log.e("Exception while getting Message", e.getMessage().toString());
}
}
});
b2.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
startActivity(new Intent(Home.this, GetMessage.class));
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_home, menu);
return true;
}
class RegisterMe extends AsyncTask<String, String, String>{
String Message=null;
public boolean workdone(String Message){
boolean x=false;
if(Message == "Done"){
x=true;
}
return x;
}
@Override
protected void onPreExecute(){
super.onPreExecute();
pDialog = new ProgressDialog(Home.this);
pDialog.setMessage("Transaction In Progress... \n You Have The Right To Remain \n Silent & Patient :)");
pDialog.setIndeterminate(false);
pDialog.setCancelable(true);
pDialog.show();
}
@Override
protected String doInBackground(String... args) {
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("message", message));
JSONObject json = jsonParser.makeHttpRequest(url_addmessage, "GET", params);
Log.d("Create Response", json.toString());
try{
int success = json.getInt(TAG_SUCCESS);
if(success == 1){
Message = "Done";
Log.d("Work Done", "Message Added");
}
else{
Log.d("Work Done", "Message Not Added");
}
} catch(JSONException e){
e.printStackTrace();
}
return null;
}
protected void onPostExecute(String file_url){
pDialog.dismiss();
if(new RegisterMe().workdone(Message)){
Toast.makeText(Home.this, "Message Added Successfully.",Toast.LENGTH_LONG).show();
}
else{
Toast.makeText(Home.this, "Sorry There was some error in processing your request, please try after some time.",Toast.LENGTH_LONG).show();
}
}
}
}
公共类主页扩展活动{
私人对话;
JSONParser JSONParser=新的JSONParser();
字符串消息;
私有静态字符串url_addmessage=”http://www.yourdomain.com/addmessage.php";
私有静态最终字符串标记_SUCCESS=“SUCCESS”;
@凌驾
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
最终EditText et=(EditText)findViewById(R.id.editText1);
按钮b1=(按钮)findViewById(R.id.button1);
按钮b2=(按钮)findViewById(R.id.button2);
b1.setOnClickListener(新的OnClickListener(){