Apache | Scripting and security

Cargar de forma sencilla un contenido JSON en Android con Volley mediante un JSONArray

(1 votes, average: 5.00 out of 5)

content_main.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.jesusninoc.json.MainActivity">

    <TextView
        android:id="@+id/TextResult"
        android:layout_width="315dp"
        android:layout_height="0dp"
        android:text="Resultado de JSON"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintHorizontal_bias="0.507"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="1.0" />

</android.support.constraint.ConstraintLayout>

<?xml version="1.0" encoding="utf-8"?>

<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:app="http://schemas.android.com/apk/res-auto"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

tools:context="com.jesusninoc.json.MainActivity">

<TextView

android:id="@+id/TextResult"

android:layout_width="315dp"

android:layout_height="0dp"

android:text="Resultado de JSON"

app:layout_constraintBottom_toBottomOf="parent"

app:layout_constraintHorizontal_bias="0.507"

app:layout_constraintLeft_toLeftOf="parent"

app:layout_constraintRight_toRightOf="parent"

app:layout_constraintTop_toTopOf="parent"

app:layout_constraintVertical_bias="1.0" />

</android.support.constraint.ConstraintLayout>

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.jesusninoc.json">

    <uses-permission android:name="android.permission.INTERNET"/>

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name"
            android:theme="@style/AppTheme.NoActionBar">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

package="com.jesusninoc.json">

<uses-permission android:name="android.permission.INTERNET"/>

<application

android:allowBackup="true"

android:icon="@mipmap/ic_launcher"

android:label="@string/app_name"

android:roundIcon="@mipmap/ic_launcher_round"

android:supportsRtl="true"

android:theme="@style/AppTheme">

<activity

android:name=".MainActivity"

android:label="@string/app_name"

android:theme="@style/AppTheme.NoActionBar">

<intent-filter>

</intent-filter>

</activity>

</application>

</manifest>

MainActivity.java

package com.jesusninoc.json;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.TextView;

import com.android.volley.Request;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.JsonArrayRequest;
import com.android.volley.toolbox.Volley;

import org.json.JSONException;
import org.json.JSONArray;
import org.json.JSONObject;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        RealizarPost();
    }

    public void RealizarPost() {

        JsonArrayRequest jsonArrayRequest = new JsonArrayRequest(Request.Method.GET,
                "https://www.jesusninoc.com/wp-json/wp/v2/posts", null, new Response.Listener<JSONArray>() {
            public void onResponse(JSONArray response) {
                try {
                    for(int i=0;i<response.length();i++) {
                        // Get current JSON object
                        JSONObject posts = response.getJSONObject(i);
                        ((TextView) findViewById(R.id.TextResult)).append(posts.getString("title"));
                    }
                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }
                },
                new Response.ErrorListener() {
                    @Override
                    public void onErrorResponse(VolleyError error) {
                        error.printStackTrace();
                    }
                }
        ) {
        };
        Volley.newRequestQueue(this).add(jsonArrayRequest);
    }
}

package com.jesusninoc.json;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.widget.TextView;

import com.android.volley.Request;

import com.android.volley.Response;

import com.android.volley.VolleyError;

import com.android.volley.toolbox.JsonArrayRequest;

import com.android.volley.toolbox.Volley;

import org.json.JSONException;

import org.json.JSONArray;

import org.json.JSONObject;

public class MainActivity extends AppCompatActivity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

RealizarPost();

}

public void RealizarPost() {

JsonArrayRequest jsonArrayRequest = new JsonArrayRequest(Request.Method.GET,

"https://www.jesusninoc.com/wp-json/wp/v2/posts", null, new Response.Listener<JSONArray>() {

public void onResponse(JSONArray response) {

try {

for(int i=0;i<response.length();i++) {

// Get current JSON object

JSONObject posts = response.getJSONObject(i);

((TextView) findViewById(R.id.TextResult)).append(posts.getString("title"));

}

} catch (JSONException e) {

e.printStackTrace();

}

new Response.ErrorListener() {

@Override

public void onErrorResponse(VolleyError error) {

error.printStackTrace();

}

) {

};

Volley.newRequestQueue(this).add(jsonArrayRequest);

}

build.gradle (Module: app)

apply plugin: 'com.android.application'

android {
    compileSdkVersion 26
    defaultConfig {
        applicationId "com.jesusninoc.json"
        minSdkVersion 18
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
    packagingOptions {
        exclude 'META-INF/DEPENDENCIES'
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:26.1.0'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
    implementation 'com.android.support:design:26.1.0'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.1'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'org.apache.httpcomponents:httpclient:4.5'
}

apply plugin: 'com.android.application'

android {

compileSdkVersion 26

defaultConfig {

applicationId "com.jesusninoc.json"

minSdkVersion 18

targetSdkVersion 26

versionCode 1

versionName "1.0"

testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

}

buildTypes {

release {

minifyEnabled false

proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'

}

packagingOptions {

exclude 'META-INF/DEPENDENCIES'

}

dependencies {

implementation fileTree(dir: 'libs', include: ['*.jar'])

implementation 'com.android.support:appcompat-v7:26.1.0'

implementation 'com.android.support.constraint:constraint-layout:1.0.2'

implementation 'com.android.support:design:26.1.0'

testImplementation 'junit:junit:4.12'

androidTestImplementation 'com.android.support.test:runner:1.0.1'

androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'

compile fileTree(dir: 'libs', include: ['*.jar'])

compile 'org.apache.httpcomponents:httpclient:4.5'

}

Cargar de forma sencilla un contenido JSON en Android con Volley

(No Ratings Yet)

content_main.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.jesusninoc.json.MainActivity">

    <TextView
        android:id="@+id/TextResult"
        android:layout_width="315dp"
        android:layout_height="0dp"
        android:text="Resultado de JSON"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintHorizontal_bias="0.507"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="1.0" />

</android.support.constraint.ConstraintLayout>

<?xml version="1.0" encoding="utf-8"?>

<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:app="http://schemas.android.com/apk/res-auto"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

tools:context="com.jesusninoc.json.MainActivity">

<TextView

android:id="@+id/TextResult"

android:layout_width="315dp"

android:layout_height="0dp"

android:text="Resultado de JSON"

app:layout_constraintBottom_toBottomOf="parent"

app:layout_constraintHorizontal_bias="0.507"

app:layout_constraintLeft_toLeftOf="parent"

app:layout_constraintRight_toRightOf="parent"

app:layout_constraintTop_toTopOf="parent"

app:layout_constraintVertical_bias="1.0" />

</android.support.constraint.ConstraintLayout>

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.jesusninoc.json">

    <uses-permission android:name="android.permission.INTERNET"/>

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name"
            android:theme="@style/AppTheme.NoActionBar">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

package="com.jesusninoc.json">

<uses-permission android:name="android.permission.INTERNET"/>

<application

android:allowBackup="true"

android:icon="@mipmap/ic_launcher"

android:label="@string/app_name"

android:roundIcon="@mipmap/ic_launcher_round"

android:supportsRtl="true"

android:theme="@style/AppTheme">

<activity

android:name=".MainActivity"

android:label="@string/app_name"

android:theme="@style/AppTheme.NoActionBar">

<intent-filter>

</intent-filter>

</activity>

</application>

</manifest>

MainActivity.java

package com.jesusninoc.json;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.TextView;

import com.android.volley.Request;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.JsonObjectRequest;
import com.android.volley.toolbox.Volley;

import org.json.JSONException;
import org.json.JSONObject;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        RealizarPost();
    }

    public void RealizarPost() {

        JsonObjectRequest jsonObjReq = new JsonObjectRequest(Request.Method.GET,
                "https://www.jesusninoc.com/wp-json/wp/v2/posts/14722", null, new Response.Listener<JSONObject>() {
            @Override
            public void onResponse(JSONObject response) {
                try {
                    ((TextView)findViewById(R.id.TextResult)).setText(response.getString("title"));
                    ((TextView)findViewById(R.id.TextResult)).append(response.getString("content"));
                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }
                },
                new Response.ErrorListener() {
                    @Override
                    public void onErrorResponse(VolleyError error) {
                        error.printStackTrace();
                    }
                }
        ) {
        };
        Volley.newRequestQueue(this).add(jsonObjReq);
    }
}

package com.jesusninoc.json;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.widget.TextView;

import com.android.volley.Request;

import com.android.volley.Response;

import com.android.volley.VolleyError;

import com.android.volley.toolbox.JsonObjectRequest;

import com.android.volley.toolbox.Volley;

import org.json.JSONException;

import org.json.JSONObject;

public class MainActivity extends AppCompatActivity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

RealizarPost();

}

public void RealizarPost() {

JsonObjectRequest jsonObjReq = new JsonObjectRequest(Request.Method.GET,

"https://www.jesusninoc.com/wp-json/wp/v2/posts/14722", null, new Response.Listener<JSONObject>() {

@Override

public void onResponse(JSONObject response) {

try {

((TextView)findViewById(R.id.TextResult)).setText(response.getString("title"));

((TextView)findViewById(R.id.TextResult)).append(response.getString("content"));

} catch (JSONException e) {

e.printStackTrace();

}

new Response.ErrorListener() {

@Override

public void onErrorResponse(VolleyError error) {

error.printStackTrace();

}

) {

};

Volley.newRequestQueue(this).add(jsonObjReq);

}

build.gradle (Module: app)

apply plugin: 'com.android.application'

android {
    compileSdkVersion 26
    defaultConfig {
        applicationId "com.jesusninoc.json"
        minSdkVersion 18
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
    packagingOptions {
        exclude 'META-INF/DEPENDENCIES'
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:26.1.0'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
    implementation 'com.android.support:design:26.1.0'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.1'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'org.apache.httpcomponents:httpclient:4.5'
}

apply plugin: 'com.android.application'

android {

compileSdkVersion 26

defaultConfig {

applicationId "com.jesusninoc.json"

minSdkVersion 18

targetSdkVersion 26

versionCode 1

versionName "1.0"

testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

}

buildTypes {

release {

minifyEnabled false

proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'

}

packagingOptions {

exclude 'META-INF/DEPENDENCIES'

}

dependencies {

implementation fileTree(dir: 'libs', include: ['*.jar'])

implementation 'com.android.support:appcompat-v7:26.1.0'

implementation 'com.android.support.constraint:constraint-layout:1.0.2'

implementation 'com.android.support:design:26.1.0'

testImplementation 'junit:junit:4.12'

androidTestImplementation 'com.android.support.test:runner:1.0.1'

androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'

compile fileTree(dir: 'libs', include: ['*.jar'])

compile 'org.apache.httpcomponents:httpclient:4.5'

}

Cargar de forma sencilla un contenido JSON en Android

(No Ratings Yet)

content_main.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.jesusninoc.jsonleer.MainActivity">

    <TextView
        android:id="@+id/TextResult"
        android:layout_width="315dp"
        android:layout_height="0dp"
        android:text="Resultado de POST"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintHorizontal_bias="0.507"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="1.0" />

</android.support.constraint.ConstraintLayout>

<?xml version="1.0" encoding="utf-8"?>

<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:app="http://schemas.android.com/apk/res-auto"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

tools:context="com.jesusninoc.jsonleer.MainActivity">

<TextView

android:id="@+id/TextResult"

android:layout_width="315dp"

android:layout_height="0dp"

android:text="Resultado de POST"

app:layout_constraintBottom_toBottomOf="parent"

app:layout_constraintHorizontal_bias="0.507"

app:layout_constraintLeft_toLeftOf="parent"

app:layout_constraintRight_toRightOf="parent"

app:layout_constraintTop_toTopOf="parent"

app:layout_constraintVertical_bias="1.0" />

</android.support.constraint.ConstraintLayout>

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.jesusninoc.jsonleer">

    <uses-permission android:name="android.permission.INTERNET"/>

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name"
            android:theme="@style/AppTheme.NoActionBar">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

package="com.jesusninoc.jsonleer">

<uses-permission android:name="android.permission.INTERNET"/>

<application

android:allowBackup="true"

android:icon="@mipmap/ic_launcher"

android:label="@string/app_name"

android:roundIcon="@mipmap/ic_launcher_round"

android:supportsRtl="true"

android:theme="@style/AppTheme">

<activity

android:name=".MainActivity"

android:label="@string/app_name"

android:theme="@style/AppTheme.NoActionBar">

<intent-filter>

</intent-filter>

</activity>

</application>

</manifest>

MainActivity.java

package com.jesusninoc.jsonleer;

import android.app.Activity;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.widget.TextView;
import android.widget.Toast;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.StatusLine;
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.InputStream;
import java.io.InputStreamReader;

public class MainActivity extends Activity {

    public String readJSONFeed(String URL) {
        StringBuilder stringBuilder = new StringBuilder();
        HttpClient httpClient = new DefaultHttpClient();
        HttpGet httpGet = new HttpGet(URL);
        try {
            HttpResponse response = httpClient.execute(httpGet);
            StatusLine statusLine = response.getStatusLine();
            int statusCode = statusLine.getStatusCode();
            if (statusCode == 200) {
                HttpEntity entity = response.getEntity();
                InputStream inputStream = entity.getContent();
                BufferedReader reader = new BufferedReader(
                        new InputStreamReader(inputStream));
                String line;
                while ((line = reader.readLine()) != null) {
                    stringBuilder.append(line);
                }
                inputStream.close();
            } else {
                Log.d("JSON", "Failed to download file");
            }
        } catch (Exception e) {
            Log.d("readJSONFeed", e.getLocalizedMessage());
        }
        return stringBuilder.toString();
    }

    private class ReadFeedTask extends AsyncTask
            <String, Void, String> {
        protected String doInBackground(String... urls) {
            return readJSONFeed(urls[0]);
        }

        protected void onPostExecute(String result) {
            try {
                JSONObject jsonObject = new JSONObject(result);
                Toast.makeText(getBaseContext(),
                        jsonObject.getString("title"),
                        Toast.LENGTH_SHORT).show();
                ((TextView)findViewById(R.id.TextResult)).setText((jsonObject.getString("title"));
            } catch (Exception e) {
                Log.d("Exception", e.getLocalizedMessage());
            }
        }
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.content_main);
        new ReadFeedTask().execute(
                "https://www.jesusninoc.com/wp-json/wp/v2/posts/14722");
    }

}

package com.jesusninoc.jsonleer;

import android.app.Activity;

import android.os.AsyncTask;

import android.os.Bundle;

import android.util.Log;

import android.widget.TextView;

import android.widget.Toast;

import org.apache.http.HttpEntity;

import org.apache.http.HttpResponse;

import org.apache.http.StatusLine;

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.InputStream;

import java.io.InputStreamReader;

public class MainActivity extends Activity {

public String readJSONFeed(String URL) {

StringBuilder stringBuilder = new StringBuilder();

HttpClient httpClient = new DefaultHttpClient();

HttpGet httpGet = new HttpGet(URL);

try {

HttpResponse response = httpClient.execute(httpGet);

StatusLine statusLine = response.getStatusLine();

int statusCode = statusLine.getStatusCode();

if (statusCode == 200) {

HttpEntity entity = response.getEntity();

InputStream inputStream = entity.getContent();

BufferedReader reader = new BufferedReader(

new InputStreamReader(inputStream));

String line;

while ((line = reader.readLine()) != null) {

stringBuilder.append(line);

}

inputStream.close();

} else {

Log.d("JSON", "Failed to download file");

}

} catch (Exception e) {

Log.d("readJSONFeed", e.getLocalizedMessage());

}

return stringBuilder.toString();

}

private class ReadFeedTask extends AsyncTask

<String, Void, String> {

protected String doInBackground(String... urls) {

return readJSONFeed(urls[0]);

}

protected void onPostExecute(String result) {

try {

JSONObject jsonObject = new JSONObject(result);

Toast.makeText(getBaseContext(),

jsonObject.getString("title"),

Toast.LENGTH_SHORT).show();

((TextView)findViewById(R.id.TextResult)).setText((jsonObject.getString("title"));

} catch (Exception e) {

Log.d("Exception", e.getLocalizedMessage());

}

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.content_main);

new ReadFeedTask().execute(

"https://www.jesusninoc.com/wp-json/wp/v2/posts/14722");

}

build.gradle (Module: app)

apply plugin: 'com.android.application'

android {
    compileSdkVersion 26
    defaultConfig {
        applicationId "com.jesusninoc.jsonleer"
        minSdkVersion 18
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
    packagingOptions {
        exclude 'META-INF/DEPENDENCIES'
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:26.1.0'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
    implementation 'com.android.support:design:26.1.0'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.1'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'org.apache.httpcomponents:httpclient:4.5'
}

apply plugin: 'com.android.application'

android {

compileSdkVersion 26

defaultConfig {

applicationId "com.jesusninoc.jsonleer"

minSdkVersion 18

targetSdkVersion 26

versionCode 1

versionName "1.0"

testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

}

buildTypes {

release {

minifyEnabled false

proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'

}

packagingOptions {

exclude 'META-INF/DEPENDENCIES'

}

dependencies {

implementation fileTree(dir: 'libs', include: ['*.jar'])

implementation 'com.android.support:appcompat-v7:26.1.0'

implementation 'com.android.support.constraint:constraint-layout:1.0.2'

implementation 'com.android.support:design:26.1.0'

testImplementation 'junit:junit:4.12'

androidTestImplementation 'com.android.support.test:runner:1.0.1'

androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'

compile fileTree(dir: 'libs', include: ['*.jar'])

compile 'org.apache.httpcomponents:httpclient:4.5'

}

Extraer datos de una imagen que está subida a un servidor mediante el reconocimiento óptico de caracteres y el análisis de imágenes con Java utilizando Computer Vision API de Microsoft Azure

(1 votes, average: 5.00 out of 5)

import java.net.URI;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;
import org.json.JSONObject;

public class Main
{
    public static final String subscriptionKey = "Clave del API";

    public static final String uriBase = "https://westcentralus.api.cognitive.microsoft.com/vision/v1.0/analyze";


    public static void main(String[] args)
    {
        HttpClient httpclient = new DefaultHttpClient();

        try
        {
            URIBuilder builder = new URIBuilder(uriBase);

            // Valores que se añaden a la URI
            builder.setParameter("visualFeatures", "Categories,Description,Color");
            builder.setParameter("language", "en");

            // Preparar la URI para la llamada REST API
            URI uri = builder.build();
            HttpPost request = new HttpPost(uri);

            // Componer las Cabeceras
            request.setHeader("Content-Type", "application/json");
            request.setHeader("Ocp-Apim-Subscription-Key", subscriptionKey);

            // Componer el Body
            StringEntity reqEntity = new StringEntity("{\"url\":\"http://www.abc.es/media/motor/2017/09/26/accidente-puigdemont-kZiE--510x286@abc.JPG\"}");
            request.setEntity(reqEntity);

            // Ejecutar la peticióni REST API con los valores
            HttpResponse response = httpclient.execute(request);
            HttpEntity entity = response.getEntity();

            if (entity != null)
            {
                // Obtener resultado JSON
                String jsonString = EntityUtils.toString(entity);
                JSONObject json = new JSONObject(jsonString);
                // Obtener la descripción de la imagen
                System.out.println(json.get("description"));
            }
        }
        catch (Exception e)
        {
            // Mostrar mensajes de error si salta excepción
            System.out.println(e.getMessage());
        }
    }
}

import java.net.URI;

import org.apache.http.HttpEntity;

import org.apache.http.HttpResponse;

import org.apache.http.client.HttpClient;

import org.apache.http.client.methods.HttpPost;

import org.apache.http.entity.StringEntity;

import org.apache.http.client.utils.URIBuilder;

import org.apache.http.impl.client.DefaultHttpClient;

import org.apache.http.util.EntityUtils;

import org.json.JSONObject;

public class Main

{

public static final String subscriptionKey = "Clave del API";

public static final String uriBase = "https://westcentralus.api.cognitive.microsoft.com/vision/v1.0/analyze";

public static void main(String[] args)

{

HttpClient httpclient = new DefaultHttpClient();

try

{

URIBuilder builder = new URIBuilder(uriBase);

// Valores que se añaden a la URI

builder.setParameter("visualFeatures", "Categories,Description,Color");

builder.setParameter("language", "en");

// Preparar la URI para la llamada REST API

URI uri = builder.build();

HttpPost request = new HttpPost(uri);

// Componer las Cabeceras

request.setHeader("Content-Type", "application/json");

request.setHeader("Ocp-Apim-Subscription-Key", subscriptionKey);

// Componer el Body

StringEntity reqEntity = new StringEntity("{\"url\":\"http://www.abc.es/media/motor/2017/09/26/accidente-puigdemont-kZiE--510x286@abc.JPG\"}");

request.setEntity(reqEntity);

// Ejecutar la peticióni REST API con los valores

HttpResponse response = httpclient.execute(request);

HttpEntity entity = response.getEntity();

if (entity != null)

{

// Obtener resultado JSON

String jsonString = EntityUtils.toString(entity);

JSONObject json = new JSONObject(jsonString);

// Obtener la descripción de la imagen

System.out.println(json.get("description"));

}

catch (Exception e)

{

// Mostrar mensajes de error si salta excepción

System.out.println(e.getMessage());

}

Resolver el CAPTCHA de Amazon

(3 votes, average: 4.00 out of 5)

#Descargar la imagen del CAPTCHA de Amazon
$url="https://www.amazon.es/errors/validateCaptcha"
$result = Invoke-WebRequest $url
Start-BitsTransfer ($result.Images.src | Select-String "captcha") -Destination captcha.jpg
Start-Process .\captcha.jpg

#Convertir la imagen CAPTCHA a texto (el resultado obtenido no es positivo en la mayoría de las ocasiones)
#Tesseract OCR
#Tesseract is probably the most accurate open source OCR engine available. Combined with the Leptonica Image Processing Library it can read a wide variety of image formats and convert them to text in over 60 languages. It was one of the top 3 engines in the 1995 UNLV Accuracy test. Between 1995 and 2006 it had little work done on it, but since then it has been improved extensively by Google. It is released under the Apache License 2.0.
E:\programas\Tesseract-OCR\tesseract.exe .\captcha.jpg captcha
gc .\captcha.txt

#Descargar la imagen del CAPTCHA de Amazon

$url="https://www.amazon.es/errors/validateCaptcha"

$result = Invoke-WebRequest $url

Start-BitsTransfer ($result.Images.src | Select-String "captcha") -Destination captcha.jpg

Start-Process .\captcha.jpg

#Convertir la imagen CAPTCHA a texto (el resultado obtenido no es positivo en la mayoría de las ocasiones)

#Tesseract OCR

#Tesseract is probably the most accurate open source OCR engine available. Combined with the Leptonica Image Processing Library it can read a wide variety of image formats and convert them to text in over 60 languages. It was one of the top 3 engines in the 1995 UNLV Accuracy test. Between 1995 and 2006 it had little work done on it, but since then it has been improved extensively by Google. It is released under the Apache License 2.0.

E:\programas\Tesseract-OCR\tesseract.exe .\captcha.jpg captcha

gc .\captcha.txt

Realizar conexiones con Java

(2 votes, average: 4.50 out of 5)

Red Analizar direcciones IP para detectar puertos abiertos (versión 1) Analizar direcciones IP para detectar puertos abiertos (versión 2) TCP Comprobar si un puerto TCP está abierto Server and client (Sockets TCP) Multiserver and clients (Sockets TCP and threads) Enviar una imagen entre un cliente y un servidor con Java (Sockets TCP) Enviar mensajes constantemente entre cliente y servidor con Java UDP Server and client (Datagram Socket UDP) MulticastSocket (Datagram Socket UDP) URL Conectar con una URL en Java Conectar con una URL en Java cambiando el User-Agent Realizar petición HTTP mediante el método POST utilizando librerías de Apache

Curso de Java con ejemplos

(8 votes, average: 4.63 out of 5)

Procesos Create operating system processes Create and destroy operating system processes Crear un proceso utilizando Runtime Crear un proceso utilizando ProcessBuilder Lanzar un programa del sistema operativo como argumento desde la línea de comandos Ejecutar y guardar el comando ‘arp’ utilizando ProcessBuilder Hilos Crear un hilo implementando el interfaz Runnable Crear un hilo heredando de la clase Thread Automatizar Obtener la posición del ratón en la pantalla con Java Ver la resolución de pantalla con Java Mover el ratón a una posición con Java Mover el ratón con duración a varias posiciones de la pantalla con Java Hacer clic en […]

Realizar petición HTTP mediante el método POST utilizando librerías de Apache

(2 votes, average: 5.00 out of 5)

/*Importar librerías:
commons-codec
commons-httpclient
commons-logging
*/

import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.methods.PostMethod;

import java.io.BufferedReader;
import java.io.InputStreamReader;

public class MetodoPOST {
	public static void main(String args[]) {
		HttpClient client = new HttpClient();
		client.getParams().setParameter("http.useragent", "");
		
		BufferedReader br = null;

		PostMethod method = new PostMethod("https://www.jesusninoc.com/getypost/examplepost.php");
		method.addParameter("nombre", "Juan");
		method.addParameter("edad", "34");
		
		try{
			int returnCode = client.executeMethod(method);
			if(returnCode == HttpStatus.SC_NOT_IMPLEMENTED) {
				System.err.println("Método POST no implementado");
				// still consume the response body
				method.getResponseBodyAsString();
				} else {
					br = new BufferedReader(new InputStreamReader(method.getResponseBodyAsStream()));
					String readLine;
					while(((readLine = br.readLine()) != null)) {
						System.err.println(readLine);
						}
					}
			} catch (Exception e) {
				System.err.println(e);
				} finally {
					method.releaseConnection();
					if(br != null) try { br.close(); } catch (Exception fe) {}
					}
		}
	}

/*Importar librerías:

commons-codec

commons-httpclient

commons-logging

import org.apache.commons.httpclient.HttpClient;

import org.apache.commons.httpclient.HttpStatus;

import org.apache.commons.httpclient.methods.PostMethod;

import java.io.BufferedReader;

import java.io.InputStreamReader;

public class MetodoPOST {

public static void main(String args[]) {

HttpClient client = new HttpClient();

client.getParams().setParameter("http.useragent", "");

BufferedReader br = null;

PostMethod method = new PostMethod("https://www.jesusninoc.com/getypost/examplepost.php");

method.addParameter("nombre", "Juan");

method.addParameter("edad", "34");

try{

int returnCode = client.executeMethod(method);

if(returnCode == HttpStatus.SC_NOT_IMPLEMENTED) {

System.err.println("Método POST no implementado");

// still consume the response body

method.getResponseBodyAsString();

} else {

br = new BufferedReader(new InputStreamReader(method.getResponseBodyAsStream()));

String readLine;

while(((readLine = br.readLine()) != null)) {

System.err.println(readLine);

}

} catch (Exception e) {

System.err.println(e);

} finally {

method.releaseConnection();

if(br != null) try { br.close(); } catch (Exception fe) {}

}

Utility to find the process id (PID) by name and count process id

(1 votes, average: 5.00 out of 5)

pidof apache2 | wc -w

1	pidof apache2 \| wc -w

Convert PNG to text

(1 votes, average: 5.00 out of 5)

#Tesseract OCR
#Tesseract is probably the most accurate open source OCR engine available. Combined with the Leptonica Image Processing Library it can read a wide variety of image formats and convert them to text in over 60 languages. It was one of the top 3 engines in the 1995 UNLV Accuracy test. Between 1995 and 2006 it had little work done on it, but since then it has been improved extensively by Google. It is released under the Apache License 2.0.

ls 'D:\power\pdf\pdf\convertir\deudores' *.png | %{
D:\power\tesseract-ocr-3.02-win32-portable\Tesseract-OCR\tesseract.exe $_.FullName $_.FullName.Replace('png','')
}

#Tesseract OCR

ls 'D:\power\pdf\pdf\convertir\deudores' *.png | %{

D:\power\tesseract-ocr-3.02-win32-portable\Tesseract-OCR\tesseract.exe $_.FullName $_.FullName.Replace('png','')

}

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